./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sina4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/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_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/sina4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/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_960f39ca-b409-49b2-b558-1ca1c6d7d296/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 933eff495d93b07d12af9180ab5b75cc35fb173187f8af9883307194e1e7fea3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:47:03,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:47:03,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:47:03,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:47:03,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:47:03,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:47:03,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:47:03,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:47:03,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:47:03,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:47:03,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:47:03,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:47:03,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:47:03,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:47:03,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:47:03,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:47:03,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:47:03,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:47:03,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:47:03,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:47:03,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:47:03,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:47:04,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:47:04,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:47:04,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:47:04,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:47:04,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:47:04,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:47:04,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:47:04,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:47:04,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:47:04,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:47:04,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:47:04,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:47:04,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:47:04,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:47:04,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:47:04,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:47:04,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:47:04,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:47:04,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:47:04,016 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:47:04,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:47:04,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:47:04,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:47:04,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:47:04,039 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:47:04,040 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:47:04,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:47:04,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:47:04,041 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:47:04,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:47:04,041 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:47:04,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:47:04,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:47:04,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:47:04,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:47:04,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:47:04,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:47:04,042 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:47:04,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:47:04,043 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:47:04,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:47:04,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:47:04,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:47:04,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:47:04,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:47:04,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:47:04,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:47:04,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:47:04,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:47:04,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:47:04,045 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:47:04,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:47:04,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:47:04,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:47:04,045 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_960f39ca-b409-49b2-b558-1ca1c6d7d296/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933eff495d93b07d12af9180ab5b75cc35fb173187f8af9883307194e1e7fea3 [2021-12-07 00:47:04,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:47:04,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:47:04,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:47:04,256 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:47:04,257 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:47:04,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-fpi/sina4.c [2021-12-07 00:47:04,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/data/8d7f7493a/16879484afcc46c1a11ccb30e86cf880/FLAGb7399dda4 [2021-12-07 00:47:04,650 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:47:04,650 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/sv-benchmarks/c/array-fpi/sina4.c [2021-12-07 00:47:04,655 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/data/8d7f7493a/16879484afcc46c1a11ccb30e86cf880/FLAGb7399dda4 [2021-12-07 00:47:04,664 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/data/8d7f7493a/16879484afcc46c1a11ccb30e86cf880 [2021-12-07 00:47:04,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:47:04,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:47:04,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:47:04,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:47:04,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:47:04,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd82677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04, skipping insertion in model container [2021-12-07 00:47:04,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:47:04,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:47:04,796 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_960f39ca-b409-49b2-b558-1ca1c6d7d296/sv-benchmarks/c/array-fpi/sina4.c[588,601] [2021-12-07 00:47:04,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:47:04,816 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:47:04,825 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_960f39ca-b409-49b2-b558-1ca1c6d7d296/sv-benchmarks/c/array-fpi/sina4.c[588,601] [2021-12-07 00:47:04,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:47:04,841 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:47:04,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04 WrapperNode [2021-12-07 00:47:04,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:47:04,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:47:04,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:47:04,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:47:04,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,867 INFO L137 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2021-12-07 00:47:04,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:47:04,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:47:04,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:47:04,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:47:04,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:47:04,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:47:04,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:47:04,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:47:04,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (1/1) ... [2021-12-07 00:47:04,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:47:04,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:47:04,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:47:04,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:47:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:47:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:47:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:47:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:47:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 00:47:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:47:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:47:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:47:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:47:05,000 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:47:05,001 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:47:05,101 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:47:05,105 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:47:05,105 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-07 00:47:05,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:47:05 BoogieIcfgContainer [2021-12-07 00:47:05,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:47:05,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:47:05,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:47:05,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:47:05,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:47:04" (1/3) ... [2021-12-07 00:47:05,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a917933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:47:05, skipping insertion in model container [2021-12-07 00:47:05,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:04" (2/3) ... [2021-12-07 00:47:05,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a917933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:47:05, skipping insertion in model container [2021-12-07 00:47:05,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:47:05" (3/3) ... [2021-12-07 00:47:05,113 INFO L111 eAbstractionObserver]: Analyzing ICFG sina4.c [2021-12-07 00:47:05,117 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:47:05,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:47:05,158 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:47:05,164 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 [2021-12-07 00:47:05,164 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:47:05,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:05,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-07 00:47:05,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:47:05,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:47:05,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:47:05,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:47:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2021-12-07 00:47:05,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:47:05,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197087206] [2021-12-07 00:47:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:47:05,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:47:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:47:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:47:05,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:47:05,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197087206] [2021-12-07 00:47:05,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197087206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:47:05,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:47:05,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:47:05,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750764216] [2021-12-07 00:47:05,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:47:05,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:47:05,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:47:05,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:47:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:47:05,339 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:05,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:47:05,351 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2021-12-07 00:47:05,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:47:05,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-07 00:47:05,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:47:05,359 INFO L225 Difference]: With dead ends: 50 [2021-12-07 00:47:05,359 INFO L226 Difference]: Without dead ends: 23 [2021-12-07 00:47:05,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:47:05,365 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:47:05,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:47:05,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-07 00:47:05,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-07 00:47:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-07 00:47:05,393 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2021-12-07 00:47:05,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:47:05,394 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-07 00:47:05,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:05,394 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-07 00:47:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-07 00:47:05,395 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:47:05,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:47:05,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:47:05,395 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:47:05,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:47:05,396 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2021-12-07 00:47:05,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:47:05,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120823892] [2021-12-07 00:47:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:47:05,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:47:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:47:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:47:05,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:47:05,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120823892] [2021-12-07 00:47:05,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120823892] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:47:05,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:47:05,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:47:05,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356531519] [2021-12-07 00:47:05,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:47:05,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:47:05,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:47:05,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:47:05,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:47:05,486 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:05,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:47:05,549 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2021-12-07 00:47:05,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:47:05,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-07 00:47:05,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:47:05,550 INFO L225 Difference]: With dead ends: 53 [2021-12-07 00:47:05,550 INFO L226 Difference]: Without dead ends: 37 [2021-12-07 00:47:05,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:47:05,553 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:47:05,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:47:05,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-07 00:47:05,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2021-12-07 00:47:05,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:05,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-12-07 00:47:05,560 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2021-12-07 00:47:05,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:47:05,560 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-12-07 00:47:05,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:05,561 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-12-07 00:47:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-07 00:47:05,561 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:47:05,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:47:05,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:47:05,562 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:47:05,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:47:05,563 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2021-12-07 00:47:05,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:47:05,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341356139] [2021-12-07 00:47:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:47:05,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:47:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:47:06,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:47:06,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:47:06,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341356139] [2021-12-07 00:47:06,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341356139] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:47:06,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009486433] [2021-12-07 00:47:06,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:47:06,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:47:06,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:47:06,148 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:47:06,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:47:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:47:06,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-07 00:47:06,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:47:06,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-07 00:47:06,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:47:06,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:47:06,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-12-07 00:47:06,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-12-07 00:47:06,744 INFO L354 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size [2021-12-07 00:47:06,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 44 [2021-12-07 00:47:07,283 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:47:07,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 62 [2021-12-07 00:47:07,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:47:07,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:47:31,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:47:31,729 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:47:31,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009486433] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:47:31,730 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:47:31,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2021-12-07 00:47:31,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73980314] [2021-12-07 00:47:31,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:47:31,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-12-07 00:47:31,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:47:31,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-07 00:47:31,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=967, Unknown=10, NotChecked=0, Total=1122 [2021-12-07 00:47:31,733 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:47:31,972 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2021-12-07 00:47:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-07 00:47:31,973 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-07 00:47:31,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:47:31,974 INFO L225 Difference]: With dead ends: 53 [2021-12-07 00:47:31,974 INFO L226 Difference]: Without dead ends: 51 [2021-12-07 00:47:31,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 8 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=169, Invalid=1081, Unknown=10, NotChecked=0, Total=1260 [2021-12-07 00:47:31,977 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:47:31,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 132 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 276 Invalid, 0 Unknown, 44 Unchecked, 0.2s Time] [2021-12-07 00:47:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-07 00:47:31,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-12-07 00:47:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2021-12-07 00:47:31,986 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 24 [2021-12-07 00:47:31,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:47:31,986 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2021-12-07 00:47:31,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2021-12-07 00:47:31,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-07 00:47:31,987 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:47:31,988 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:47:32,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:47:32,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:47:32,189 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:47:32,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:47:32,190 INFO L85 PathProgramCache]: Analyzing trace with hash 831040416, now seen corresponding path program 2 times [2021-12-07 00:47:32,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:47:32,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072186282] [2021-12-07 00:47:32,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:47:32,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:47:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:47:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 00:47:32,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:47:32,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072186282] [2021-12-07 00:47:32,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072186282] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:47:32,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461142527] [2021-12-07 00:47:32,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:47:32,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:47:32,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:47:32,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:47:32,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 00:47:32,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:47:32,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:47:32,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 00:47:32,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:47:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 00:47:32,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:47:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 00:47:32,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461142527] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:47:32,394 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:47:32,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-12-07 00:47:32,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269592028] [2021-12-07 00:47:32,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:47:32,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:47:32,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:47:32,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:47:32,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:47:32,395 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:32,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:47:32,478 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2021-12-07 00:47:32,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:47:32,478 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-07 00:47:32,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:47:32,479 INFO L225 Difference]: With dead ends: 101 [2021-12-07 00:47:32,480 INFO L226 Difference]: Without dead ends: 66 [2021-12-07 00:47:32,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:47:32,481 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 84 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:47:32,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 46 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:47:32,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-12-07 00:47:32,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2021-12-07 00:47:32,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:32,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2021-12-07 00:47:32,489 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 26 [2021-12-07 00:47:32,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:47:32,490 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2021-12-07 00:47:32,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:32,490 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2021-12-07 00:47:32,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-07 00:47:32,491 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:47:32,491 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:47:32,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 00:47:32,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:47:32,693 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:47:32,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:47:32,695 INFO L85 PathProgramCache]: Analyzing trace with hash -587916192, now seen corresponding path program 3 times [2021-12-07 00:47:32,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:47:32,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510903498] [2021-12-07 00:47:32,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:47:32,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:47:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:47:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 00:47:32,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:47:32,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510903498] [2021-12-07 00:47:32,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510903498] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:47:32,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996453887] [2021-12-07 00:47:32,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 00:47:32,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:47:32,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:47:32,760 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:47:32,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 00:47:32,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-07 00:47:32,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:47:32,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 00:47:32,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:47:32,846 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 00:47:32,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:47:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 00:47:32,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996453887] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:47:32,873 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:47:32,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-12-07 00:47:32,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864273281] [2021-12-07 00:47:32,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:47:32,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:47:32,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:47:32,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:47:32,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:47:32,875 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:32,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:47:32,956 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2021-12-07 00:47:32,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:47:32,957 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-07 00:47:32,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:47:32,957 INFO L225 Difference]: With dead ends: 63 [2021-12-07 00:47:32,957 INFO L226 Difference]: Without dead ends: 50 [2021-12-07 00:47:32,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-12-07 00:47:32,958 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 88 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:47:32,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 47 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:47:32,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-07 00:47:32,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2021-12-07 00:47:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:32,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-12-07 00:47:32,962 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2021-12-07 00:47:32,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:47:32,963 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-12-07 00:47:32,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:32,963 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-12-07 00:47:32,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-07 00:47:32,963 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:47:32,963 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:47:32,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 00:47:33,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:47:33,165 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:47:33,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:47:33,167 INFO L85 PathProgramCache]: Analyzing trace with hash -826292134, now seen corresponding path program 4 times [2021-12-07 00:47:33,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:47:33,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915209338] [2021-12-07 00:47:33,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:47:33,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:47:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:47:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:47:34,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:47:34,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915209338] [2021-12-07 00:47:34,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915209338] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:47:34,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852336625] [2021-12-07 00:47:34,350 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-07 00:47:34,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:47:34,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:47:34,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:47:34,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 00:47:34,393 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-07 00:47:34,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:47:34,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 62 conjunts are in the unsatisfiable core [2021-12-07 00:47:34,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:47:34,412 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 11 treesize of output 7 [2021-12-07 00:47:34,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:34,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:47:34,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:34,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:34,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-12-07 00:47:34,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:34,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:47:34,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:34,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2021-12-07 00:47:34,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:34,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:34,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-12-07 00:47:34,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:34,976 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:47:34,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:34,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2021-12-07 00:47:35,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:35,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:35,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:35,137 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-12-07 00:47:35,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 56 [2021-12-07 00:47:35,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:35,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:47:35,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:47:35,346 INFO L354 Elim1Store]: treesize reduction 38, result has 46.5 percent of original size [2021-12-07 00:47:35,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 58 [2021-12-07 00:47:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:35,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:35,654 INFO L354 Elim1Store]: treesize reduction 41, result has 31.7 percent of original size [2021-12-07 00:47:35,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 62 [2021-12-07 00:47:36,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:47:36,131 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:47:36,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 58 [2021-12-07 00:47:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:47:36,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:47:38,310 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_227 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0))))) is different from false [2021-12-07 00:47:40,326 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_227 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse0) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) is different from false [2021-12-07 00:47:42,505 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_72| Int)) (or (forall ((v_ArrVal_224 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_227 Int)) (or (= (select (store (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_72| 8)) v_ArrVal_224))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_69| 1))) (< |v_ULTIMATE.start_main_~i~0#1_72| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-07 00:47:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-12-07 00:47:57,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852336625] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:47:57,824 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:47:57,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21, 22] total 65 [2021-12-07 00:47:57,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504394096] [2021-12-07 00:47:57,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:47:57,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-12-07 00:47:57,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:47:57,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-12-07 00:47:57,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=3453, Unknown=10, NotChecked=366, Total=4160 [2021-12-07 00:47:57,827 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 65 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 65 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:00,098 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse1 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse0 (select .cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))))) (and (= .cse0 (+ .cse1 1)) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (= (* 2 .cse1) (+ .cse0 (select .cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))))))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= (select .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_72| Int)) (or (forall ((v_ArrVal_224 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_227 Int)) (or (= (select (store (let ((.cse4 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_72| 8)) v_ArrVal_224))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_69| 1))) (< |v_ULTIMATE.start_main_~i~0#1_72| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (<= 2 c_~N~0) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (< 1 c_~N~0) (<= c_~N~0 2) (or (let ((.cse6 (+ c_~N~0 1)) (.cse5 (select .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))))) (and (<= .cse5 .cse6) (<= .cse6 .cse5))) (< 2 c_~N~0)))) is different from false [2021-12-07 00:48:02,170 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_72| Int)) (or (forall ((v_ArrVal_224 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_227 Int)) (or (= (select (store (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_72| 8)) v_ArrVal_224))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_69| 1))) (< |v_ULTIMATE.start_main_~i~0#1_72| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|))) (and (= (+ .cse1 1) (* 2 .cse2)) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (= .cse1 (+ .cse2 1))))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (< 1 c_~N~0) (<= c_~N~0 2)) is different from false [2021-12-07 00:48:04,295 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ 2 c_~N~0)) (.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= .cse0 .cse1) (<= .cse1 .cse0) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~a~0#1.base| Int)) (and (< (+ |ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (or (= |c_ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a~0#1.base|) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (* |c_ULTIMATE.start_main_~i~0#1| 8)))) (or (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= 2 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))))) (= .cse1 4) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (< 1 c_~N~0) (<= c_~N~0 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_227 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0))))))) is different from false [2021-12-07 00:48:26,727 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)))) (.cse0 (+ 2 c_~N~0))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= .cse0 .cse1) (<= .cse1 .cse0) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_227 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_227) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0))))))) is different from false [2021-12-07 00:48:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:48:27,629 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2021-12-07 00:48:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-12-07 00:48:27,629 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 65 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-12-07 00:48:27,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:48:27,631 INFO L225 Difference]: With dead ends: 91 [2021-12-07 00:48:27,631 INFO L226 Difference]: Without dead ends: 89 [2021-12-07 00:48:27,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 1982 ImplicationChecksByTransitivity, 51.6s TimeCoverageRelationStatistics Valid=422, Invalid=4551, Unknown=25, NotChecked=1008, Total=6006 [2021-12-07 00:48:27,633 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 320 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:48:27,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 184 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 195 Invalid, 0 Unknown, 320 Unchecked, 0.1s Time] [2021-12-07 00:48:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-12-07 00:48:27,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 66. [2021-12-07 00:48:27,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 65 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:27,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2021-12-07 00:48:27,641 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 32 [2021-12-07 00:48:27,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:48:27,642 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2021-12-07 00:48:27,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 65 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:27,642 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2021-12-07 00:48:27,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-07 00:48:27,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:48:27,643 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:48:27,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 00:48:27,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-07 00:48:27,844 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:48:27,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:48:27,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2147373800, now seen corresponding path program 5 times [2021-12-07 00:48:27,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:48:27,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678505881] [2021-12-07 00:48:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:48:27,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:48:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:48:27,936 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-07 00:48:27,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:48:27,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678505881] [2021-12-07 00:48:27,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678505881] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:48:27,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118913447] [2021-12-07 00:48:27,937 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-07 00:48:27,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:48:27,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:48:27,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:48:27,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 00:48:28,104 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-12-07 00:48:28,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:48:28,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 00:48:28,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:48:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-07 00:48:28,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:48:28,201 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-07 00:48:28,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118913447] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:48:28,202 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:48:28,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2021-12-07 00:48:28,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693396638] [2021-12-07 00:48:28,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:48:28,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 00:48:28,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:48:28,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 00:48:28,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:48:28,203 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:48:28,322 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2021-12-07 00:48:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 00:48:28,322 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-07 00:48:28,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:48:28,323 INFO L225 Difference]: With dead ends: 145 [2021-12-07 00:48:28,323 INFO L226 Difference]: Without dead ends: 110 [2021-12-07 00:48:28,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:48:28,324 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 84 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:48:28,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 73 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:48:28,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-12-07 00:48:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 77. [2021-12-07 00:48:28,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.131578947368421) internal successors, (86), 76 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:28,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2021-12-07 00:48:28,332 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 34 [2021-12-07 00:48:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:48:28,333 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2021-12-07 00:48:28,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2021-12-07 00:48:28,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-07 00:48:28,334 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:48:28,334 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:48:28,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-07 00:48:28,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:48:28,535 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:48:28,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:48:28,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1737020496, now seen corresponding path program 1 times [2021-12-07 00:48:28,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:48:28,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730967019] [2021-12-07 00:48:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:48:28,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:48:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:48:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:48:29,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:48:29,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730967019] [2021-12-07 00:48:29,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730967019] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:48:29,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558802195] [2021-12-07 00:48:29,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:48:29,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:48:29,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:48:29,669 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:48:29,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-07 00:48:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:48:29,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 78 conjunts are in the unsatisfiable core [2021-12-07 00:48:29,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:48:29,733 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 11 treesize of output 7 [2021-12-07 00:48:29,740 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 00:48:29,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 102 [2021-12-07 00:48:29,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:48:29,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:29,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-12-07 00:48:29,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:29,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:29,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:29,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2021-12-07 00:48:30,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:30,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:30,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:30,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2021-12-07 00:48:30,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:30,220 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:30,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 43 [2021-12-07 00:48:30,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:30,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:30,338 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:30,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2021-12-07 00:48:30,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:30,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:30,584 INFO L354 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2021-12-07 00:48:30,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 66 [2021-12-07 00:48:30,726 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:30,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:30,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:30,736 INFO L354 Elim1Store]: treesize reduction 53, result has 19.7 percent of original size [2021-12-07 00:48:30,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 47 [2021-12-07 00:48:31,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:31,229 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:31,233 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-12-07 00:48:31,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 35 [2021-12-07 00:48:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:48:31,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:48:35,584 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:48:35,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558802195] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:48:35,585 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:48:35,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 23] total 65 [2021-12-07 00:48:35,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705104329] [2021-12-07 00:48:35,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:48:35,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-12-07 00:48:35,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:48:35,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-12-07 00:48:35,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=3849, Unknown=0, NotChecked=0, Total=4160 [2021-12-07 00:48:35,587 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 65 states, 65 states have (on average 1.4461538461538461) internal successors, (94), 65 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:45,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:48:45,036 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2021-12-07 00:48:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-07 00:48:45,036 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 1.4461538461538461) internal successors, (94), 65 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-12-07 00:48:45,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:48:45,037 INFO L225 Difference]: With dead ends: 126 [2021-12-07 00:48:45,037 INFO L226 Difference]: Without dead ends: 81 [2021-12-07 00:48:45,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2178 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=701, Invalid=7671, Unknown=0, NotChecked=0, Total=8372 [2021-12-07 00:48:45,040 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 137 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:48:45,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 215 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 273 Invalid, 0 Unknown, 137 Unchecked, 0.8s Time] [2021-12-07 00:48:45,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-07 00:48:45,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-12-07 00:48:45,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.1375) internal successors, (91), 80 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:45,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2021-12-07 00:48:45,047 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 36 [2021-12-07 00:48:45,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:48:45,047 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2021-12-07 00:48:45,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 1.4461538461538461) internal successors, (94), 65 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:45,048 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2021-12-07 00:48:45,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-07 00:48:45,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:48:45,049 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:48:45,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-07 00:48:45,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:48:45,250 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:48:45,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:48:45,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1245131882, now seen corresponding path program 6 times [2021-12-07 00:48:45,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:48:45,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243242554] [2021-12-07 00:48:45,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:48:45,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:48:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:48:45,339 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-07 00:48:45,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:48:45,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243242554] [2021-12-07 00:48:45,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243242554] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:48:45,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80735385] [2021-12-07 00:48:45,339 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-07 00:48:45,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:48:45,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:48:45,340 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:48:45,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-07 00:48:45,394 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-12-07 00:48:45,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:48:45,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 00:48:45,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:48:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-07 00:48:45,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:48:45,492 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-07 00:48:45,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80735385] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:48:45,492 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:48:45,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2021-12-07 00:48:45,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849833032] [2021-12-07 00:48:45,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:48:45,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 00:48:45,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:48:45,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 00:48:45,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:48:45,493 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:45,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:48:45,602 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2021-12-07 00:48:45,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 00:48:45,602 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-12-07 00:48:45,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:48:45,603 INFO L225 Difference]: With dead ends: 104 [2021-12-07 00:48:45,603 INFO L226 Difference]: Without dead ends: 74 [2021-12-07 00:48:45,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2021-12-07 00:48:45,604 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 199 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:48:45,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 60 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:48:45,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-07 00:48:45,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 43. [2021-12-07 00:48:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:45,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-12-07 00:48:45,608 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 36 [2021-12-07 00:48:45,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:48:45,608 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-12-07 00:48:45,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:45,608 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-12-07 00:48:45,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-07 00:48:45,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:48:45,609 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:48:45,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-07 00:48:45,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-07 00:48:45,810 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:48:45,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:48:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1201221586, now seen corresponding path program 7 times [2021-12-07 00:48:45,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:48:45,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824739421] [2021-12-07 00:48:45,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:48:45,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:48:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:48:47,070 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:48:47,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:48:47,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824739421] [2021-12-07 00:48:47,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824739421] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:48:47,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926581137] [2021-12-07 00:48:47,071 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-07 00:48:47,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:48:47,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:48:47,071 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:48:47,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-07 00:48:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:48:47,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 85 conjunts are in the unsatisfiable core [2021-12-07 00:48:47,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:48:47,131 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 11 treesize of output 7 [2021-12-07 00:48:47,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-07 00:48:47,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:48:47,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-12-07 00:48:47,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2021-12-07 00:48:47,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 57 [2021-12-07 00:48:47,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,514 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:47,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2021-12-07 00:48:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:47,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 55 [2021-12-07 00:48:47,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:47,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 60 [2021-12-07 00:48:47,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:47,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:47,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 60 [2021-12-07 00:48:48,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:48,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:48,105 INFO L354 Elim1Store]: treesize reduction 30, result has 42.3 percent of original size [2021-12-07 00:48:48,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 57 [2021-12-07 00:48:48,238 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:48,239 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:48:48,252 INFO L354 Elim1Store]: treesize reduction 38, result has 46.5 percent of original size [2021-12-07 00:48:48,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 52 [2021-12-07 00:48:48,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:48,544 INFO L354 Elim1Store]: treesize reduction 41, result has 31.7 percent of original size [2021-12-07 00:48:48,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 64 [2021-12-07 00:48:48,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:48:48,802 INFO L354 Elim1Store]: treesize reduction 41, result has 31.7 percent of original size [2021-12-07 00:48:48,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 64 [2021-12-07 00:48:49,186 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:48:49,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 60 [2021-12-07 00:48:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:48:49,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:48:51,371 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_520 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0))))) is different from false [2021-12-07 00:49:14,991 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int)) (or (forall ((v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (v_ArrVal_519 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |v_ULTIMATE.start_main_~i~0#1_149| 1)) (= (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_149| 8)) v_ArrVal_519) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) (< |v_ULTIMATE.start_main_~i~0#1_149| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-07 00:49:17,020 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_519 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |v_ULTIMATE.start_main_~i~0#1_149| 1)) (< |v_ULTIMATE.start_main_~i~0#1_149| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (store (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse0) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_149| 8)) v_ArrVal_519) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) is different from false [2021-12-07 00:49:19,831 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_152| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_519 Int) (v_ArrVal_514 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |v_ULTIMATE.start_main_~i~0#1_149| 1)) (= (select (store (store (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8)) v_ArrVal_514))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_149| 8)) v_ArrVal_519) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_149| 1))))) is different from false [2021-12-07 00:51:35,028 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_519 Int) (|v_ULTIMATE.start_main_~i~0#1_152| Int) (v_ArrVal_514 Int) (v_ArrVal_512 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |v_ULTIMATE.start_main_~i~0#1_149| 1)) (= (select (store (store (let ((.cse0 (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3))) (store .cse1 .cse2 (+ (select .cse1 .cse2) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 8) v_ArrVal_512)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8)) v_ArrVal_514))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_149| 8)) v_ArrVal_519) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_149| 1) (< |v_ULTIMATE.start_main_~i~0#1_152| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)))) is different from false [2021-12-07 00:51:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2021-12-07 00:51:56,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926581137] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:51:56,058 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:51:56,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 28, 30] total 79 [2021-12-07 00:51:56,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909600943] [2021-12-07 00:51:56,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:51:56,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-12-07 00:51:56,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:51:56,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-12-07 00:51:56,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=431, Invalid=4868, Unknown=123, NotChecked=740, Total=6162 [2021-12-07 00:51:56,061 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 79 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 79 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:51:58,545 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= (+ 3 (div (* |c_ULTIMATE.start_main_~a~0#1.offset| (- 1)) 8)) c_~N~0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (and (not (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* c_~N~0 8) (- 8))) 1) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~i~0#1| 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_152| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_519 Int) (v_ArrVal_514 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |v_ULTIMATE.start_main_~i~0#1_149| 1)) (= (select (store (store (let ((.cse1 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8)) v_ArrVal_514))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_149| 8)) v_ArrVal_519) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_149| 1))))) (= 4 (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8) (- 8)))) (or (let ((.cse3 (+ c_~N~0 1)) (.cse2 (select .cse0 0))) (and (<= .cse2 .cse3) (<= .cse3 .cse2))) (and (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (<= |c_ULTIMATE.start_main_~i~0#1| 1))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= 3 c_~N~0) (<= c_~N~0 3))) is different from false [2021-12-07 00:52:00,651 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= (+ 3 (div (* |c_ULTIMATE.start_main_~a~0#1.offset| (- 1)) 8)) c_~N~0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 4) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (and (not (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_152| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (v_ArrVal_519 Int) (v_ArrVal_514 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |v_ULTIMATE.start_main_~i~0#1_149| 1)) (= (select (store (store (let ((.cse1 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8)) v_ArrVal_514))) (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_149| 8)) v_ArrVal_519) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_149| 1))))) (or (let ((.cse3 (+ c_~N~0 1)) (.cse2 (select .cse0 0))) (and (<= .cse2 .cse3) (<= .cse3 .cse2))) (and (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (<= |c_ULTIMATE.start_main_~i~0#1| 1))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= 3 c_~N~0) (<= c_~N~0 3))) is different from false [2021-12-07 00:52:23,387 WARN L227 SmtUtils]: Spent 13.71s on a formula simplification. DAG size of input: 56 DAG size of output: 52 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 00:52:30,304 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ 2 c_~N~0)) (.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= .cse0 .cse1) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~a~0#1.base| Int)) (and (or (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (not (= |ULTIMATE.start_main_~#sum~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (or (= |c_ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a~0#1.base|) (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (= (+ 1 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse2)) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse2))))))) (<= .cse1 .cse0) (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int)) (or (forall ((v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (v_ArrVal_519 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |v_ULTIMATE.start_main_~i~0#1_149| 1)) (= (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_149| 8)) v_ArrVal_519) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) (< |v_ULTIMATE.start_main_~i~0#1_149| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= 3 c_~N~0) (<= c_~N~0 3) (= 5 .cse1))) is different from false [2021-12-07 00:52:32,467 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse1 (select .cse2 0)) (.cse0 (+ 2 c_~N~0))) (and (<= (+ (div (* |c_ULTIMATE.start_main_~b~0#1.offset| (- 1)) 8) 1) |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= .cse0 .cse1) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= 5 (select .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|)) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= 3 c_~N~0) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_520 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0))))) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~a~0#1.base| Int)) (and (or (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (not (= |ULTIMATE.start_main_~#sum~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (or (= |c_ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a~0#1.base|) (= (+ (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0) 1) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))) (<= c_~N~0 3) (<= .cse1 .cse0)))) is different from false [2021-12-07 00:52:34,471 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)))) (.cse0 (+ 2 c_~N~0))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= .cse0 .cse1) (<= .cse1 .cse0) (forall ((|v_ULTIMATE.start_main_~i~0#1_149| Int)) (or (forall ((v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (v_ArrVal_519 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |v_ULTIMATE.start_main_~i~0#1_149| 1)) (= (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_149| 8)) v_ArrVal_519) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) (< |v_ULTIMATE.start_main_~i~0#1_149| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0))) is different from false [2021-12-07 00:52:36,591 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) 0)) (.cse0 (+ 2 c_~N~0))) (and (<= (+ (div (* |c_ULTIMATE.start_main_~b~0#1.offset| (- 1)) 8) 1) |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= .cse0 .cse1) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_520 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0))))) (<= .cse1 .cse0))) is different from false [2021-12-07 00:52:36,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:52:36,618 INFO L93 Difference]: Finished difference Result 93 states and 104 transitions. [2021-12-07 00:52:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-12-07 00:52:36,619 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 79 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-12-07 00:52:36,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:52:36,619 INFO L225 Difference]: With dead ends: 93 [2021-12-07 00:52:36,620 INFO L226 Difference]: Without dead ends: 91 [2021-12-07 00:52:36,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 30 SyntacticMatches, 9 SemanticMatches, 91 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 2538 ImplicationChecksByTransitivity, 224.3s TimeCoverageRelationStatistics Valid=555, Invalid=5996, Unknown=135, NotChecked=1870, Total=8556 [2021-12-07 00:52:36,622 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 19 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 730 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:52:36,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 228 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 364 Invalid, 0 Unknown, 730 Unchecked, 0.2s Time] [2021-12-07 00:52:36,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-12-07 00:52:36,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2021-12-07 00:52:36,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.144578313253012) internal successors, (95), 83 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:52:36,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 95 transitions. [2021-12-07 00:52:36,630 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 95 transitions. Word has length 40 [2021-12-07 00:52:36,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:52:36,630 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 95 transitions. [2021-12-07 00:52:36,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 79 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:52:36,630 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions. [2021-12-07 00:52:36,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-07 00:52:36,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:52:36,631 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:52:36,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-07 00:52:36,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-07 00:52:36,832 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:52:36,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:52:36,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1012369648, now seen corresponding path program 8 times [2021-12-07 00:52:36,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:52:36,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433225957] [2021-12-07 00:52:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:52:36,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:52:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:36,888 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-07 00:52:36,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:52:36,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433225957] [2021-12-07 00:52:36,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433225957] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:52:36,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905853302] [2021-12-07 00:52:36,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:52:36,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:52:36,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:52:36,890 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:52:36,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-07 00:52:36,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:52:36,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:52:36,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-07 00:52:36,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:52:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-07 00:52:37,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:52:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-07 00:52:37,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905853302] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:52:37,058 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:52:37,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2021-12-07 00:52:37,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762582633] [2021-12-07 00:52:37,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:52:37,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-07 00:52:37,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:52:37,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-07 00:52:37,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:52:37,060 INFO L87 Difference]: Start difference. First operand 84 states and 95 transitions. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:52:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:52:37,200 INFO L93 Difference]: Finished difference Result 186 states and 206 transitions. [2021-12-07 00:52:37,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:52:37,201 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-12-07 00:52:37,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:52:37,201 INFO L225 Difference]: With dead ends: 186 [2021-12-07 00:52:37,201 INFO L226 Difference]: Without dead ends: 141 [2021-12-07 00:52:37,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:52:37,202 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 128 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:52:37,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 105 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:52:37,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-12-07 00:52:37,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 105. [2021-12-07 00:52:37,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.1057692307692308) internal successors, (115), 104 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:52:37,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2021-12-07 00:52:37,210 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 42 [2021-12-07 00:52:37,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:52:37,210 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2021-12-07 00:52:37,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:52:37,210 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2021-12-07 00:52:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-07 00:52:37,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:52:37,211 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:52:37,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-07 00:52:37,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-07 00:52:37,412 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:52:37,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:52:37,413 INFO L85 PathProgramCache]: Analyzing trace with hash -308361392, now seen corresponding path program 9 times [2021-12-07 00:52:37,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:52:37,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015921872] [2021-12-07 00:52:37,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:52:37,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:52:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-07 00:52:37,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:52:37,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015921872] [2021-12-07 00:52:37,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015921872] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:52:37,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367597873] [2021-12-07 00:52:37,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 00:52:37,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:52:37,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:52:37,511 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:52:37,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-07 00:52:37,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-07 00:52:37,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:52:37,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-07 00:52:37,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:52:37,682 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-07 00:52:37,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:52:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-07 00:52:37,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367597873] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:52:37,736 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:52:37,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2021-12-07 00:52:37,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445511230] [2021-12-07 00:52:37,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:52:37,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-07 00:52:37,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:52:37,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-07 00:52:37,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:52:37,737 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:52:37,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:52:37,948 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2021-12-07 00:52:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:52:37,949 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-12-07 00:52:37,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:52:37,949 INFO L225 Difference]: With dead ends: 146 [2021-12-07 00:52:37,949 INFO L226 Difference]: Without dead ends: 117 [2021-12-07 00:52:37,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2021-12-07 00:52:37,950 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 158 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:52:37,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 162 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:52:37,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-12-07 00:52:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 86. [2021-12-07 00:52:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 85 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:52:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2021-12-07 00:52:37,958 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 42 [2021-12-07 00:52:37,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:52:37,959 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2021-12-07 00:52:37,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:52:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2021-12-07 00:52:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-07 00:52:37,959 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:52:37,959 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:52:37,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-07 00:52:38,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-07 00:52:38,161 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:52:38,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:52:38,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2112995272, now seen corresponding path program 2 times [2021-12-07 00:52:38,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:52:38,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16068785] [2021-12-07 00:52:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:52:38,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:52:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:39,540 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:52:39,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:52:39,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16068785] [2021-12-07 00:52:39,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16068785] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:52:39,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302977018] [2021-12-07 00:52:39,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:52:39,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:52:39,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:52:39,542 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:52:39,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-07 00:52:39,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:52:39,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:52:39,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 92 conjunts are in the unsatisfiable core [2021-12-07 00:52:39,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:52:39,612 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 11 treesize of output 7 [2021-12-07 00:52:39,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2021-12-07 00:52:39,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:39,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:52:39,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:39,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:39,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-12-07 00:52:39,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:39,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:39,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:39,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:39,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2021-12-07 00:52:40,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:52:40,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2021-12-07 00:52:40,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:52:40,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 54 [2021-12-07 00:52:40,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 51 [2021-12-07 00:52:40,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:52:40,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 53 [2021-12-07 00:52:40,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:52:40,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2021-12-07 00:52:40,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:40,896 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-12-07 00:52:40,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 64 [2021-12-07 00:52:41,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:41,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:52:41,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:41,104 INFO L354 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2021-12-07 00:52:41,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 62 [2021-12-07 00:52:41,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:41,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:52:41,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:52:41,337 INFO L354 Elim1Store]: treesize reduction 62, result has 31.9 percent of original size [2021-12-07 00:52:41,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 62 treesize of output 74 [2021-12-07 00:52:41,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:41,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:41,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:41,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:41,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:52:41,631 INFO L354 Elim1Store]: treesize reduction 63, result has 23.2 percent of original size [2021-12-07 00:52:41,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 57 treesize of output 80 [2021-12-07 00:52:42,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:52:42,328 INFO L354 Elim1Store]: treesize reduction 12, result has 70.7 percent of original size [2021-12-07 00:52:42,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 68 treesize of output 68 [2021-12-07 00:52:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:52:42,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:52:44,603 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_767 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (+ 2 c_~N~0))))) is different from false [2021-12-07 00:53:00,633 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int) (v_ArrVal_767 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (= (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse0 8) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0 8)) 1))) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (+ 2 c_~N~0)))) is different from false [2021-12-07 00:53:01,722 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int) (v_ArrVal_767 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (= (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1)))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1 8) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 8)) 1)))) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (+ 2 c_~N~0)))) is different from false [2021-12-07 00:53:04,023 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_228| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_228| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int) (v_ArrVal_761 Int) (v_ArrVal_767 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| 2) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))) (select (store (let ((.cse3 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_228| 8)) v_ArrVal_761))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse3))) (let ((.cse0 (store (select .cse2 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse0 .cse1 (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) .cse1)) (+ 2 c_~N~0)))))) is different from false [2021-12-07 00:53:05,474 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_228| Int) (v_ArrVal_767 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| 2) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))) (select (store (let ((.cse3 (store (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)))) (store .cse4 .cse5 (+ (select .cse4 .cse5) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_228| 8)) v_ArrVal_761))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse3))) (let ((.cse0 (store (select .cse2 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse0 .cse1 (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) .cse1)) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_228| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-07 00:55:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2021-12-07 00:55:05,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302977018] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:55:05,101 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:55:05,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 30, 31] total 89 [2021-12-07 00:55:05,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491549671] [2021-12-07 00:55:05,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:55:05,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2021-12-07 00:55:05,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:55:05,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-12-07 00:55:05,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=560, Invalid=6384, Unknown=48, NotChecked=840, Total=7832 [2021-12-07 00:55:05,105 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand has 89 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:55:19,636 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 8)) (.cse5 (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|))) (and (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))) (+ .cse0 1)) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (= 3 .cse0)))) (= (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) 1) (= |c_ULTIMATE.start_main_~i~0#1| 1) (= 4 (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)))) (or (let ((.cse4 (+ c_~N~0 1)) (.cse3 (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)))) (and (<= .cse3 .cse4) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) .cse5 (<= .cse4 .cse3))) (not (= (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8))) (forall ((|v_ULTIMATE.start_main_~i~0#1_228| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_228| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int) (v_ArrVal_761 Int) (v_ArrVal_767 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| 2) (= (let ((.cse7 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))) (select (store (let ((.cse9 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_228| 8)) v_ArrVal_761))) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse9))) (let ((.cse6 (store (select .cse8 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse6 .cse7 (+ (select (select (store .cse8 |c_ULTIMATE.start_main_~b~0#1.base| .cse6) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) .cse7)) (+ 2 c_~N~0)))))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= 3 c_~N~0) .cse5 (<= c_~N~0 3) (<= |c_ULTIMATE.start_main_~i~0#1| 1) (< 2 c_~N~0))) is different from false [2021-12-07 00:55:20,668 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse11 (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_228| Int) (v_ArrVal_767 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| 2) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))) (select (store (let ((.cse3 (store (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)))) (store .cse4 .cse5 (+ (select .cse4 .cse5) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_228| 8)) v_ArrVal_761))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse3))) (let ((.cse0 (store (select .cse2 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse0 .cse1 (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) .cse1)) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_228| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) 4) (= (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) 1) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse7 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|))) (and (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (= (+ .cse7 1) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (= 3 .cse7)))) (let ((.cse10 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (or (let ((.cse9 (+ c_~N~0 1)) (.cse8 (select .cse6 8))) (and (<= .cse8 .cse9) (<= .cse9 .cse8) (not (= (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|) 8)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) .cse11)) (<= (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset| 9) (* 8 c_~N~0)))) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) .cse11 (<= c_~N~0 3) (< 2 c_~N~0))) is different from false [2021-12-07 00:55:22,683 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 4) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (and (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 4) (forall ((|v_ULTIMATE.start_main_~i~0#1_228| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_228| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int) (v_ArrVal_761 Int) (v_ArrVal_767 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| 2) (= (let ((.cse2 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))) (select (store (let ((.cse4 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_228| 8)) v_ArrVal_761))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4))) (let ((.cse1 (store (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse1 .cse2 (+ (select (select (store .cse3 |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) .cse2)) (+ 2 c_~N~0)))))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= c_~N~0 3) (< 2 c_~N~0))) is different from false [2021-12-07 00:55:25,032 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse0 (+ 2 c_~N~0)) (.cse1 (select .cse3 (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= .cse0 .cse1) (= |c_ULTIMATE.start_main_~i~0#1| 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_767 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (+ 2 c_~N~0))))) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~a~0#1.base| Int)) (let ((.cse2 (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (and (= 4 (select .cse2 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (or (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (= (select .cse2 0) 4) (< (+ |ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|)))) (<= .cse1 .cse0) (= 5 (select .cse3 |c_ULTIMATE.start_main_~b~0#1.offset|)) (< 7 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|)) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= c_~N~0 3) (<= |c_ULTIMATE.start_main_~i~0#1| 1) (< 2 c_~N~0) (= 5 .cse1)))) is different from false [2021-12-07 00:55:27,235 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~a~0#1.base| Int)) (let ((.cse0 (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (and (= (select .cse0 8) 4) (or (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (= (select .cse0 0) 4) (< (+ |ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|)))) (= 5 (select .cse1 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))) (forall ((|v_ULTIMATE.start_main_~i~0#1_224| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_224| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_767 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_224| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_767) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (+ 2 c_~N~0))))) (= 5 (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|)) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= c_~N~0 3) (< 2 c_~N~0))) is different from false [2021-12-07 00:55:27,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:55:27,796 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2021-12-07 00:55:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-07 00:55:27,796 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-12-07 00:55:27,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:55:27,797 INFO L225 Difference]: With dead ends: 90 [2021-12-07 00:55:27,797 INFO L226 Difference]: Without dead ends: 88 [2021-12-07 00:55:27,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 105 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 3916 ImplicationChecksByTransitivity, 160.1s TimeCoverageRelationStatistics Valid=756, Invalid=8536, Unknown=60, NotChecked=1990, Total=11342 [2021-12-07 00:55:27,800 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 794 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:55:27,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 211 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 430 Invalid, 0 Unknown, 794 Unchecked, 0.3s Time] [2021-12-07 00:55:27,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-12-07 00:55:27,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2021-12-07 00:55:27,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.0705882352941176) internal successors, (91), 85 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:55:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-12-07 00:55:27,807 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 44 [2021-12-07 00:55:27,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:55:27,807 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-12-07 00:55:27,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:55:27,807 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-12-07 00:55:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-07 00:55:27,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:55:27,808 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:55:27,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-07 00:55:28,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:55:28,009 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:55:28,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:55:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1258986306, now seen corresponding path program 3 times [2021-12-07 00:55:28,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:55:28,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634089570] [2021-12-07 00:55:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:55:28,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:55:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:30,350 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:55:30,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:55:30,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634089570] [2021-12-07 00:55:30,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634089570] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:55:30,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353018477] [2021-12-07 00:55:30,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 00:55:30,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:55:30,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:55:30,351 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:55:30,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960f39ca-b409-49b2-b558-1ca1c6d7d296/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-07 00:55:30,446 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-07 00:55:30,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:55:30,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 88 conjunts are in the unsatisfiable core [2021-12-07 00:55:30,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:55:30,461 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 00:55:30,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 50 [2021-12-07 00:55:30,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 00:55:30,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:55:30,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:55:30,646 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-12-07 00:55:30,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:55:30,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2021-12-07 00:55:31,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2021-12-07 00:55:31,145 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 00:55:31,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-12-07 00:55:31,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:55:31,417 INFO L354 Elim1Store]: treesize reduction 47, result has 28.8 percent of original size [2021-12-07 00:55:31,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 46 [2021-12-07 00:55:31,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:55:31,639 INFO L354 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2021-12-07 00:55:31,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 55 [2021-12-07 00:55:31,851 INFO L354 Elim1Store]: treesize reduction 68, result has 44.7 percent of original size [2021-12-07 00:55:31,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 94 [2021-12-07 00:55:39,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:55:39,386 INFO L354 Elim1Store]: treesize reduction 60, result has 43.9 percent of original size [2021-12-07 00:55:39,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 131 treesize of output 135 [2021-12-07 00:55:40,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:55:40,044 INFO L354 Elim1Store]: treesize reduction 81, result has 12.0 percent of original size [2021-12-07 00:55:40,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 73 [2021-12-07 00:55:40,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:55:40,302 INFO L354 Elim1Store]: treesize reduction 188, result has 14.9 percent of original size [2021-12-07 00:55:40,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 82 treesize of output 82 [2021-12-07 00:55:43,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:55:43,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:55:43,796 INFO L354 Elim1Store]: treesize reduction 126, result has 8.0 percent of original size [2021-12-07 00:55:43,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 140 treesize of output 76 [2021-12-07 00:55:43,870 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:55:43,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:58:31,289 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:58:31,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1298 treesize of output 1076 [2021-12-07 00:58:53,953 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|v_ULTIMATE.start_main_~i~0#1_256| Int) (v_ArrVal_861 Int) (v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_255| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (|v_ULTIMATE.start_main_~i~0#1_260| Int) (|v_ULTIMATE.start_main_~i~0#1_250| Int) (v_ArrVal_854 Int)) (let ((.cse1 (let ((.cse6 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8)) 1)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse5 (let ((.cse7 (store (let ((.cse9 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8) v_ArrVal_854)) (.cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_260| 8)))) (store .cse7 .cse8 (+ (select (select (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse7 .cse8)))))) (let ((.cse4 (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse5))) (let ((.cse2 (store (store (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_256| 8)) v_ArrVal_861)) (.cse3 (* |v_ULTIMATE.start_main_~i~0#1_255| 8))) (store .cse2 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3) (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) 1)))))))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|))) (or (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_260|)) (< 5 .cse0) (< (+ 3 |ULTIMATE.start_main_~i~0#1|) .cse0) (< |v_ULTIMATE.start_main_~i~0#1_250| 2) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_260|) .cse0) (<= .cse0 (+ 2 |ULTIMATE.start_main_~i~0#1|)) (= .cse0 (select .cse1 (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_250| 8)))) (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_250|)) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_255|) .cse0) (< |v_ULTIMATE.start_main_~i~0#1_256| 1) (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_255|)))))) is different from false [2021-12-07 00:58:56,355 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_256| Int) (v_ArrVal_861 Int) (|v_ULTIMATE.start_main_~i~0#1_269| Int) (v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_255| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (|v_ULTIMATE.start_main_~i~0#1_260| Int) (|v_ULTIMATE.start_main_~i~0#1_250| Int) (v_ArrVal_844 Int) (v_ArrVal_854 Int)) (let ((.cse1 (let ((.cse6 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)) v_ArrVal_844) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_269| 8)) 1)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse5 (let ((.cse7 (store (let ((.cse9 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8) v_ArrVal_854)) (.cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_260| 8)))) (store .cse7 .cse8 (+ (select (select (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse7 .cse8)))))) (let ((.cse4 (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse5))) (let ((.cse2 (store (store (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_256| 8)) v_ArrVal_861)) (.cse3 (* |v_ULTIMATE.start_main_~i~0#1_255| 8))) (store .cse2 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3) (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) 1)))))))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|))) (or (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_250|)) (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_255|)) (< |v_ULTIMATE.start_main_~i~0#1_250| 2) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_255|) .cse0) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_269|) .cse0) (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_269|)) (= (select .cse1 (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_250| 8))) .cse0) (< |v_ULTIMATE.start_main_~i~0#1_256| 1) (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_260|)) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_260|) .cse0) (< 5 .cse0))))) is different from false [2021-12-07 00:58:59,993 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_270| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_256| Int) (v_ArrVal_861 Int) (|v_ULTIMATE.start_main_~i~0#1_269| Int) (v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_255| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (|v_ULTIMATE.start_main_~i~0#1_260| Int) (|v_ULTIMATE.start_main_~i~0#1_250| Int) (v_ArrVal_844 Int) (v_ArrVal_854 Int)) (let ((.cse1 (let ((.cse6 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_270| 8)) v_ArrVal_844) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_269| 8)) 1)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse5 (let ((.cse7 (store (let ((.cse9 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8) v_ArrVal_854)) (.cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_260| 8)))) (store .cse7 .cse8 (+ (select (select (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse7 .cse8)))))) (let ((.cse4 (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse5))) (let ((.cse2 (store (store (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_256| 8)) v_ArrVal_861)) (.cse3 (* |v_ULTIMATE.start_main_~i~0#1_255| 8))) (store .cse2 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3) (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) 1)))))))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|))) (or (< 5 .cse0) (= (select .cse1 (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_250| 8))) .cse0) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_255|) .cse0) (< |v_ULTIMATE.start_main_~i~0#1_250| 2) (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_269|)) (< |v_ULTIMATE.start_main_~i~0#1_256| 1) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_269|) .cse0) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_260|) .cse0) (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_255|)) (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_250|)) (<= .cse0 (+ 2 |v_ULTIMATE.start_main_~i~0#1_260|)))))) (< |v_ULTIMATE.start_main_~i~0#1_270| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-07 00:59:00,217 INFO L354 Elim1Store]: treesize reduction 113, result has 28.9 percent of original size [2021-12-07 00:59:00,217 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 15496 treesize of output 5661 [2021-12-07 00:59:00,571 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:59:00,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 133707 treesize of output 124429 [2021-12-07 00:59:01,027 INFO L173 IndexEqualityManager]: detected equality via solver