./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn2f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9492838383a14835fe4416045232ed048098976ee70d4c4f9afc54e7ded61319 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:11:20,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:11:20,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:11:20,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:11:20,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:11:20,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:11:20,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:11:20,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:11:20,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:11:20,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:11:20,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:11:20,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:11:20,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:11:20,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:11:20,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:11:20,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:11:20,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:11:20,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:11:20,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:11:20,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:11:20,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:11:20,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:11:20,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:11:20,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:11:20,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:11:20,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:11:20,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:11:20,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:11:20,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:11:20,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:11:20,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:11:20,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:11:20,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:11:20,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:11:20,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:11:20,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:11:20,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:11:20,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:11:20,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:11:20,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:11:20,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:11:20,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:11:21,014 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:11:21,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:11:21,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:11:21,015 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:11:21,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:11:21,016 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:11:21,016 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:11:21,017 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:11:21,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:11:21,017 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:11:21,017 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:11:21,018 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:11:21,018 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:11:21,018 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:11:21,019 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:11:21,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:11:21,020 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:11:21,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:11:21,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:11:21,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:11:21,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:11:21,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:11:21,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:11:21,022 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:11:21,022 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:11:21,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:11:21,023 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:11:21,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:11:21,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:11:21,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:11:21,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:11:21,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:11:21,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:11:21,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:11:21,025 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:11:21,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:11:21,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:11:21,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:11:21,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:11:21,027 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9492838383a14835fe4416045232ed048098976ee70d4c4f9afc54e7ded61319 [2021-10-29 05:11:21,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:11:21,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:11:21,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:11:21,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:11:21,313 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:11:21,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-fpi/eqn2f.c [2021-10-29 05:11:21,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/data/b6cf2790a/826e804366924283a5cf55b1a8d7e4b3/FLAGa021fb1ec [2021-10-29 05:11:21,998 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:11:22,000 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/sv-benchmarks/c/array-fpi/eqn2f.c [2021-10-29 05:11:22,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/data/b6cf2790a/826e804366924283a5cf55b1a8d7e4b3/FLAGa021fb1ec [2021-10-29 05:11:22,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/data/b6cf2790a/826e804366924283a5cf55b1a8d7e4b3 [2021-10-29 05:11:22,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:11:22,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:11:22,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:11:22,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:11:22,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:11:22,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de0d279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22, skipping insertion in model container [2021-10-29 05:11:22,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:11:22,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:11:22,541 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/sv-benchmarks/c/array-fpi/eqn2f.c[588,601] [2021-10-29 05:11:22,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:11:22,587 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:11:22,599 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/sv-benchmarks/c/array-fpi/eqn2f.c[588,601] [2021-10-29 05:11:22,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:11:22,621 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:11:22,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22 WrapperNode [2021-10-29 05:11:22,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:11:22,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:11:22,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:11:22,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:11:22,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:11:22,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:11:22,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:11:22,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:11:22,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:11:22,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:11:22,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:11:22,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:11:22,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (1/1) ... [2021-10-29 05:11:22,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:11:22,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:11:22,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:11:22,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:11:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:11:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:11:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:11:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:11:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:11:22,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:11:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:11:23,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:11:23,134 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-29 05:11:23,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:11:23 BoogieIcfgContainer [2021-10-29 05:11:23,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:11:23,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:11:23,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:11:23,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:11:23,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:11:22" (1/3) ... [2021-10-29 05:11:23,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540b72d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:11:23, skipping insertion in model container [2021-10-29 05:11:23,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:11:22" (2/3) ... [2021-10-29 05:11:23,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540b72d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:11:23, skipping insertion in model container [2021-10-29 05:11:23,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:11:23" (3/3) ... [2021-10-29 05:11:23,159 INFO L111 eAbstractionObserver]: Analyzing ICFG eqn2f.c [2021-10-29 05:11:23,164 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:11:23,180 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:11:23,250 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:11:23,260 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:11:23,261 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:11:23,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:23,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:11:23,295 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:11:23,296 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:11:23,296 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:11:23,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:11:23,308 INFO L85 PathProgramCache]: Analyzing trace with hash -735732333, now seen corresponding path program 1 times [2021-10-29 05:11:23,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:11:23,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701838837] [2021-10-29 05:11:23,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:23,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:11:23,505 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:11:23,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755088831] [2021-10-29 05:11:23,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:23,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:23,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:11:23,509 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:11:23,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:11:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:11:23,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 05:11:23,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:11:23,746 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-10-29 05:11:23,747 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 1 case distinctions, treesize of input 27 treesize of output 23 [2021-10-29 05:11:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:23,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:11:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:24,049 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:11:24,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701838837] [2021-10-29 05:11:24,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:11:24,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755088831] [2021-10-29 05:11:24,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755088831] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:11:24,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:11:24,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-29 05:11:24,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953725063] [2021-10-29 05:11:24,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:11:24,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:11:24,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:11:24,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:11:24,077 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:11:24,177 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2021-10-29 05:11:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:11:24,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-29 05:11:24,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:11:24,186 INFO L225 Difference]: With dead ends: 35 [2021-10-29 05:11:24,186 INFO L226 Difference]: Without dead ends: 20 [2021-10-29 05:11:24,188 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:11:24,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-29 05:11:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2021-10-29 05:11:24,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:24,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-10-29 05:11:24,219 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 7 [2021-10-29 05:11:24,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:11:24,219 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-29 05:11:24,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:24,220 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2021-10-29 05:11:24,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:11:24,220 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:11:24,220 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:11:24,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:11:24,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-29 05:11:24,437 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:11:24,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:11:24,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1337635293, now seen corresponding path program 1 times [2021-10-29 05:11:24,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:11:24,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822315746] [2021-10-29 05:11:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:24,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:11:24,483 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:11:24,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957275527] [2021-10-29 05:11:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:24,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:24,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:11:24,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:11:24,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 05:11:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:11:24,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:11:24,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:11:24,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:24,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:11:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:24,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:11:24,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822315746] [2021-10-29 05:11:24,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:11:24,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957275527] [2021-10-29 05:11:24,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957275527] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:11:24,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:11:24,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-29 05:11:24,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036637609] [2021-10-29 05:11:24,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:11:24,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:11:24,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:11:24,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:11:24,667 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:11:24,706 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2021-10-29 05:11:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:11:24,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 8 [2021-10-29 05:11:24,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:11:24,708 INFO L225 Difference]: With dead ends: 25 [2021-10-29 05:11:24,708 INFO L226 Difference]: Without dead ends: 19 [2021-10-29 05:11:24,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:11:24,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-29 05:11:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2021-10-29 05:11:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2021-10-29 05:11:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-10-29 05:11:24,713 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2021-10-29 05:11:24,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:11:24,714 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-29 05:11:24,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:24,714 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-10-29 05:11:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:11:24,715 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:11:24,715 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:11:24,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:11:24,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:24,937 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:11:24,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:11:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1611921030, now seen corresponding path program 1 times [2021-10-29 05:11:24,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:11:24,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147591872] [2021-10-29 05:11:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:24,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:11:24,975 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:11:24,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [129573413] [2021-10-29 05:11:24,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:24,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:24,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:11:24,977 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:11:24,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-29 05:11:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:11:25,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:11:25,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:11:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:25,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:11:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:25,123 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:11:25,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147591872] [2021-10-29 05:11:25,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:11:25,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129573413] [2021-10-29 05:11:25,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129573413] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:11:25,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2037947733] [2021-10-29 05:11:25,146 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-29 05:11:25,146 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:11:25,151 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:11:25,157 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:11:25,157 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:11:25,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,191 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:25,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 05:11:25,199 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:25,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 05:11:25,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-10-29 05:11:25,233 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 21=[|v_#valid_20|]} [2021-10-29 05:11:25,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:11:25,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:11:25,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:11:25,259 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:25,284 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:11:25,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:11:25,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:11:25,313 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:25,335 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-10-29 05:11:25,349 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,350 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-10-29 05:11:25,368 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-10-29 05:11:25,371 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:25,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-29 05:11:25,380 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:25,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-29 05:11:25,384 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:25,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 05:11:25,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-10-29 05:11:25,422 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_20|], 28=[|v_#valid_21|]} [2021-10-29 05:11:25,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,516 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-29 05:11:25,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-10-29 05:11:25,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-29 05:11:25,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-29 05:11:25,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,542 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 05:11:25,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:11:25,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:11:25,545 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:25,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,634 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-10-29 05:11:25,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-10-29 05:11:25,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-29 05:11:25,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,644 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-29 05:11:25,644 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:25,659 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-10-29 05:11:25,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-29 05:11:25,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-29 05:11:25,682 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:25,695 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,705 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-10-29 05:11:25,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-10-29 05:11:25,713 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,714 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:392, output treesize:172 [2021-10-29 05:11:25,725 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,729 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:25,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-29 05:11:25,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-10-29 05:11:25,780 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:25,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:25,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-10-29 05:11:25,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-29 05:11:25,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-29 05:11:25,798 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:25,814 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:25,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-10-29 05:11:25,824 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:25,825 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:206, output treesize:207 [2021-10-29 05:11:25,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:25,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:25,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:25,965 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,001 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:26,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,010 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:26,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-29 05:11:26,015 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:26,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-10-29 05:11:26,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 440 [2021-10-29 05:11:26,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:26,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-10-29 05:11:26,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 489 [2021-10-29 05:11:26,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2021-10-29 05:11:26,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-29 05:11:26,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-29 05:11:26,133 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:26,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-10-29 05:11:26,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-29 05:11:26,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-29 05:11:26,171 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:26,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:26,240 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,282 INFO L180 QuantifierPusher]: treesize reduction 133, result has 77.4 percent of original size [2021-10-29 05:11:26,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 456 [2021-10-29 05:11:26,293 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 05:11:26,294 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:590, output treesize:456 [2021-10-29 05:11:26,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:26,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:26,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:26,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:26,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:26,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:26,391 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-10-29 05:11:26,393 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:26,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-29 05:11:26,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-10-29 05:11:26,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:26,404 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 27 treesize of output 27 [2021-10-29 05:11:26,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-29 05:11:26,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-29 05:11:26,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:26,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:26,411 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-10-29 05:11:26,414 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:26,414 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-10-29 05:11:26,421 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-10-29 05:11:26,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-29 05:11:26,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:26,431 INFO L185 QuantifierPusher]: treesize reduction 4, result has 92.9 percent of original size 52 [2021-10-29 05:11:26,443 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:11:27,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:11:27,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:11:27,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-29 05:11:27,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54250183] [2021-10-29 05:11:27,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:11:27,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:11:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:11:27,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:11:27,052 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:27,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:11:27,149 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-10-29 05:11:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:11:27,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 8 [2021-10-29 05:11:27,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:11:27,150 INFO L225 Difference]: With dead ends: 29 [2021-10-29 05:11:27,150 INFO L226 Difference]: Without dead ends: 24 [2021-10-29 05:11:27,151 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-10-29 05:11:27,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-29 05:11:27,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 14. [2021-10-29 05:11:27,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:27,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-10-29 05:11:27,154 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 8 [2021-10-29 05:11:27,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:11:27,154 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-29 05:11:27,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:27,154 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-10-29 05:11:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:11:27,155 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:11:27,155 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:11:27,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:11:27,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:27,369 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:11:27,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:11:27,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1565286172, now seen corresponding path program 1 times [2021-10-29 05:11:27,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:11:27,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743896686] [2021-10-29 05:11:27,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:27,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:11:27,390 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:11:27,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [772114710] [2021-10-29 05:11:27,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:27,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:27,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:11:27,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:11:27,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 05:11:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:11:27,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 05:11:27,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:11:27,517 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-10-29 05:11:27,517 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 1 case distinctions, treesize of input 27 treesize of output 23 [2021-10-29 05:11:27,529 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 [2021-10-29 05:11:27,578 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-10-29 05:11:27,579 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 3 case distinctions, treesize of input 41 treesize of output 52 [2021-10-29 05:11:27,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:27,858 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-10-29 05:11:27,859 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 9 case distinctions, treesize of input 70 treesize of output 70 [2021-10-29 05:11:28,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:28,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:11:36,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:36,542 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:11:36,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743896686] [2021-10-29 05:11:36,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:11:36,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772114710] [2021-10-29 05:11:36,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772114710] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:11:36,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1866565978] [2021-10-29 05:11:36,546 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-29 05:11:36,547 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:11:36,547 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:11:36,548 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:11:36,548 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:11:36,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,560 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:36,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 05:11:36,563 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:36,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 05:11:36,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-10-29 05:11:36,570 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 21=[|v_#valid_24|]} [2021-10-29 05:11:36,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:11:36,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:11:36,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:11:36,587 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:36,608 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:11:36,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:11:36,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:11:36,650 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:36,656 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-10-29 05:11:36,661 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,661 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-10-29 05:11:36,670 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-10-29 05:11:36,672 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:36,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-29 05:11:36,675 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:36,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-29 05:11:36,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:36,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 05:11:36,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-10-29 05:11:36,689 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_23|], 28=[|v_#valid_25|]} [2021-10-29 05:11:36,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,741 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-29 05:11:36,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-10-29 05:11:36,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-29 05:11:36,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-29 05:11:36,748 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,759 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 05:11:36,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:11:36,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:11:36,762 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:36,774 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,827 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-10-29 05:11:36,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-10-29 05:11:36,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-29 05:11:36,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-29 05:11:36,837 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:36,848 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-10-29 05:11:36,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-29 05:11:36,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-29 05:11:36,872 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:36,882 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,886 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-10-29 05:11:36,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-10-29 05:11:36,890 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,891 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:392, output treesize:172 [2021-10-29 05:11:36,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,898 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:36,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-29 05:11:36,905 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size 193 [2021-10-29 05:11:36,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:36,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2021-10-29 05:11:36,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-29 05:11:36,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-29 05:11:36,932 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:36,942 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:36,946 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size [2021-10-29 05:11:36,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-10-29 05:11:36,951 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:36,952 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:194, output treesize:187 [2021-10-29 05:11:36,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:36,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:36,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,062 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-29 05:11:37,065 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-29 05:11:37,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 422 [2021-10-29 05:11:37,073 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-10-29 05:11:37,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 471 [2021-10-29 05:11:37,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:37,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:37,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-10-29 05:11:37,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-29 05:11:37,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-29 05:11:37,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,161 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:37,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2021-10-29 05:11:37,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-10-29 05:11:37,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-10-29 05:11:37,176 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,221 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,241 INFO L180 QuantifierPusher]: treesize reduction 126, result has 77.3 percent of original size [2021-10-29 05:11:37,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 429 [2021-10-29 05:11:37,249 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 05:11:37,250 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:572, output treesize:429 [2021-10-29 05:11:37,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,327 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-10-29 05:11:37,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-29 05:11:37,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-10-29 05:11:37,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,340 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 27 treesize of output 27 [2021-10-29 05:11:37,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-29 05:11:37,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-29 05:11:37,343 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,346 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-10-29 05:11:37,349 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,350 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-10-29 05:11:37,355 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-10-29 05:11:37,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-29 05:11:37,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,362 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-29 05:11:37,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-10-29 05:11:37,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,374 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:37,377 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 05:11:37,378 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 1 case distinctions, treesize of input 36 treesize of output 39 [2021-10-29 05:11:37,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:37,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:37,381 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,384 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-10-29 05:11:37,387 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,388 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:93 [2021-10-29 05:11:37,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,416 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,421 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,424 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-29 05:11:37,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-29 05:11:37,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-10-29 05:11:37,430 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-10-29 05:11:37,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-10-29 05:11:37,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:37,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:37,481 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-10-29 05:11:37,481 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-10-29 05:11:37,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-10-29 05:11:37,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-10-29 05:11:37,486 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:37,502 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 05:11:37,505 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 1 case distinctions, treesize of input 36 treesize of output 39 [2021-10-29 05:11:37,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:37,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:37,508 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,525 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,531 INFO L180 QuantifierPusher]: treesize reduction 115, result has 64.7 percent of original size [2021-10-29 05:11:37,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-10-29 05:11:37,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 05:11:37,534 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:211 [2021-10-29 05:11:37,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,571 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-10-29 05:11:37,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:37,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-29 05:11:37,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-10-29 05:11:37,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:37,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:37,587 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 05:11:37,588 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 1 case distinctions, treesize of input 36 treesize of output 39 [2021-10-29 05:11:37,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:11:37,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:11:37,591 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:37,594 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:37,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-10-29 05:11:37,597 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:37,597 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:89 [2021-10-29 05:11:37,604 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-10-29 05:11:37,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-29 05:11:37,612 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:11:38,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:11:38,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:11:38,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-10-29 05:11:38,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056585998] [2021-10-29 05:11:38,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 05:11:38,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:11:38,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 05:11:38,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=218, Unknown=7, NotChecked=0, Total=272 [2021-10-29 05:11:38,244 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:40,160 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (let ((.cse0 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse1 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse0 (+ .cse1 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse0 (+ .cse1 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) (+ .cse1 c_ULTIMATE.start_main_~a~0.offset (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1) (forall ((ULTIMATE.start_main_~i~0 Int)) (= (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base (let ((.cse2 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse3 (* ULTIMATE.start_main_~i~0 8))) (store .cse2 (+ .cse3 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse2 (+ .cse3 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4)))) c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-10-29 05:11:51,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:11:51,671 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2021-10-29 05:11:51,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-29 05:11:51,672 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 05:11:51,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:11:51,674 INFO L225 Difference]: With dead ends: 59 [2021-10-29 05:11:51,674 INFO L226 Difference]: Without dead ends: 57 [2021-10-29 05:11:51,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=165, Invalid=756, Unknown=13, NotChecked=58, Total=992 [2021-10-29 05:11:51,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-29 05:11:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 21. [2021-10-29 05:11:51,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:51,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2021-10-29 05:11:51,685 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 9 [2021-10-29 05:11:51,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:11:51,685 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-10-29 05:11:51,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:51,685 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-10-29 05:11:51,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:11:51,686 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:11:51,686 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:11:51,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:11:51,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-29 05:11:51,907 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:11:51,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:11:51,907 INFO L85 PathProgramCache]: Analyzing trace with hash -978676906, now seen corresponding path program 1 times [2021-10-29 05:11:51,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:11:51,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625450604] [2021-10-29 05:11:51,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:51,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:11:51,918 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:11:51,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496532299] [2021-10-29 05:11:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:51,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:51,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:11:51,933 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:11:51,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-29 05:11:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:11:52,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:11:52,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:11:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:52,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:11:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:11:52,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:11:52,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625450604] [2021-10-29 05:11:52,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:11:52,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496532299] [2021-10-29 05:11:52,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496532299] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:11:52,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:11:52,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-10-29 05:11:52,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91907784] [2021-10-29 05:11:52,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:11:52,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:11:52,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:11:52,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:11:52,196 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:52,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:11:52,293 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2021-10-29 05:11:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:11:52,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:11:52,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:11:52,295 INFO L225 Difference]: With dead ends: 35 [2021-10-29 05:11:52,295 INFO L226 Difference]: Without dead ends: 25 [2021-10-29 05:11:52,295 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:11:52,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-29 05:11:52,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2021-10-29 05:11:52,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 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) [2021-10-29 05:11:52,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-10-29 05:11:52,302 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 10 [2021-10-29 05:11:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:11:52,302 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-29 05:11:52,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-10-29 05:11:52,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:11:52,304 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:11:52,304 INFO L513 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:11:52,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:11:52,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-10-29 05:11:52,527 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:11:52,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:11:52,527 INFO L85 PathProgramCache]: Analyzing trace with hash 848835292, now seen corresponding path program 2 times [2021-10-29 05:11:52,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:11:52,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600974706] [2021-10-29 05:11:52,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:52,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:11:52,557 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:11:52,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1968011681] [2021-10-29 05:11:52,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 05:11:52,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:52,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:11:52,559 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:11:52,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-29 05:11:52,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-29 05:11:52,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:11:52,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:11:52,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:11:52,762 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:11:52,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:11:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:11:52,817 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:11:52,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600974706] [2021-10-29 05:11:52,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:11:52,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968011681] [2021-10-29 05:11:52,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968011681] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:11:52,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [955747389] [2021-10-29 05:11:52,826 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-29 05:11:52,826 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:11:52,827 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:11:52,827 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:11:52,827 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:11:52,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,847 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:52,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 05:11:52,850 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:52,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 05:11:52,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-10-29 05:11:52,858 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_26|], 21=[|v_#valid_28|]} [2021-10-29 05:11:52,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:11:52,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:11:52,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:11:52,874 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:52,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:52,878 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:11:52,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:11:52,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:11:52,912 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:52,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:52,915 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-10-29 05:11:52,918 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:52,919 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-10-29 05:11:52,926 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-10-29 05:11:52,927 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:52,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-29 05:11:52,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:52,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-29 05:11:52,934 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:52,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:52,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 05:11:52,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-10-29 05:11:52,943 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_27|], 28=[|v_#valid_29|]} [2021-10-29 05:11:52,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:52,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,009 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-29 05:11:53,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-10-29 05:11:53,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-29 05:11:53,020 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-29 05:11:53,020 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,029 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 05:11:53,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:11:53,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:11:53,031 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,040 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,110 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-10-29 05:11:53,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-10-29 05:11:53,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-29 05:11:53,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-29 05:11:53,117 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,125 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-10-29 05:11:53,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-29 05:11:53,143 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,144 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-29 05:11:53,144 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,153 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,157 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-10-29 05:11:53,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-10-29 05:11:53,163 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,163 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:392, output treesize:172 [2021-10-29 05:11:53,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,173 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-29 05:11:53,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-10-29 05:11:53,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:53,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-10-29 05:11:53,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-10-29 05:11:53,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-10-29 05:11:53,204 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,212 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-10-29 05:11:53,220 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,221 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:206, output treesize:196 [2021-10-29 05:11:53,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,324 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,332 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-10-29 05:11:53,335 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-29 05:11:53,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 429 [2021-10-29 05:11:53,344 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 399 [2021-10-29 05:11:53,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 478 [2021-10-29 05:11:53,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-10-29 05:11:53,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-29 05:11:53,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-29 05:11:53,423 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:53,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-10-29 05:11:53,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-29 05:11:53,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-29 05:11:53,462 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,534 INFO L180 QuantifierPusher]: treesize reduction 131, result has 76.8 percent of original size [2021-10-29 05:11:53,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 434 [2021-10-29 05:11:53,544 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 05:11:53,544 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:579, output treesize:434 [2021-10-29 05:11:53,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,626 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-10-29 05:11:53,627 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-29 05:11:53,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-10-29 05:11:53,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,638 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 27 treesize of output 27 [2021-10-29 05:11:53,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-29 05:11:53,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-29 05:11:53,641 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,643 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-10-29 05:11:53,646 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,646 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-10-29 05:11:53,652 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-10-29 05:11:53,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-29 05:11:53,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,659 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-29 05:11:53,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-10-29 05:11:53,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,671 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:53,675 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 05:11:53,675 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 1 case distinctions, treesize of input 36 treesize of output 39 [2021-10-29 05:11:53,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:53,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:53,678 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,681 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-10-29 05:11:53,683 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,684 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:93 [2021-10-29 05:11:53,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,719 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-29 05:11:53,721 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-29 05:11:53,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-10-29 05:11:53,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-10-29 05:11:53,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-10-29 05:11:53,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,756 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:53,761 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 05:11:53,761 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 1 case distinctions, treesize of input 36 treesize of output 39 [2021-10-29 05:11:53,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:53,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:53,765 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,780 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:53,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:53,788 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-10-29 05:11:53,788 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-10-29 05:11:53,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-29 05:11:53,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-29 05:11:53,791 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,806 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,813 INFO L180 QuantifierPusher]: treesize reduction 117, result has 64.3 percent of original size [2021-10-29 05:11:53,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-10-29 05:11:53,816 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 05:11:53,816 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:211 [2021-10-29 05:11:53,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,857 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-10-29 05:11:53,858 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:11:53,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-29 05:11:53,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-10-29 05:11:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:53,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:11:53,873 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 05:11:53,873 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 1 case distinctions, treesize of input 36 treesize of output 39 [2021-10-29 05:11:53,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:53,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-29 05:11:53,876 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:11:53,878 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:11:53,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-10-29 05:11:53,882 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:11:53,883 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:91 [2021-10-29 05:11:53,889 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-10-29 05:11:53,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-29 05:11:53,896 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:11:54,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:11:54,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:11:54,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-10-29 05:11:54,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439695422] [2021-10-29 05:11:54,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:11:54,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:11:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:11:54,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:11:54,491 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:54,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:11:54,582 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2021-10-29 05:11:54,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:11:54,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 05:11:54,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:11:54,584 INFO L225 Difference]: With dead ends: 40 [2021-10-29 05:11:54,584 INFO L226 Difference]: Without dead ends: 31 [2021-10-29 05:11:54,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-10-29 05:11:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-29 05:11:54,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 20. [2021-10-29 05:11:54,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:54,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-10-29 05:11:54,601 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 11 [2021-10-29 05:11:54,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:11:54,601 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-29 05:11:54,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:11:54,602 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-10-29 05:11:54,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:11:54,603 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:11:54,603 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:11:54,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:11:54,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:54,829 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:11:54,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:11:54,829 INFO L85 PathProgramCache]: Analyzing trace with hash -746752909, now seen corresponding path program 3 times [2021-10-29 05:11:54,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:11:54,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849251006] [2021-10-29 05:11:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:11:54,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:11:54,853 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:11:54,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302801282] [2021-10-29 05:11:54,858 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-29 05:11:54,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:11:54,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:11:54,859 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:11:54,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-29 05:11:54,986 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-29 05:11:54,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:11:54,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 05:11:54,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:11:55,001 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 [2021-10-29 05:11:55,007 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 27 treesize of output 15 [2021-10-29 05:11:55,072 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-10-29 05:11:55,072 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 3 case distinctions, treesize of input 41 treesize of output 52 [2021-10-29 05:11:55,267 INFO L354 Elim1Store]: treesize reduction 200, result has 28.3 percent of original size [2021-10-29 05:11:55,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 116 [2021-10-29 05:11:56,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:56,947 INFO L354 Elim1Store]: treesize reduction 152, result has 0.7 percent of original size [2021-10-29 05:11:56,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 148 treesize of output 134 [2021-10-29 05:11:57,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:11:58,105 INFO L354 Elim1Store]: treesize reduction 962, result has 8.9 percent of original size [2021-10-29 05:11:58,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 186 treesize of output 181 [2021-10-29 05:12:37,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:12:37,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:12:39,573 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 (+ c_ULTIMATE.start_main_~i~0 1)) (= (select (let ((.cse0 (let ((.cse2 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse3 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse2 (+ .cse3 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse2 (+ .cse3 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) (+ .cse3 c_ULTIMATE.start_main_~a~0.offset (- 8))))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8))) (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-10-29 05:12:40,690 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse0 (let ((.cse2 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base))) (store .cse2 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse2 c_ULTIMATE.start_main_~b~0.offset) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) c_ULTIMATE.start_main_~a~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-10-29 05:12:42,413 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse4 (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* ULTIMATE.start_main_~i~0 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse4 c_ULTIMATE.start_main_~a~0.offset) (select .cse3 c_ULTIMATE.start_main_~b~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-10-29 05:12:44,506 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int) (v_ULTIMATE.start_main_~i~0_115 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse4 (let ((.cse5 (let ((.cse7 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse8 (* ULTIMATE.start_main_~i~0 8))) (store .cse7 (+ .cse8 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse7 (+ .cse8 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4)))) (.cse6 (* v_ULTIMATE.start_main_~i~0_115 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse3 c_ULTIMATE.start_main_~b~0.offset) (select .cse4 c_ULTIMATE.start_main_~a~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-10-29 05:12:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2021-10-29 05:12:44,554 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:12:44,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849251006] [2021-10-29 05:12:44,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:12:44,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302801282] [2021-10-29 05:12:44,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302801282] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:12:44,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1078347718] [2021-10-29 05:12:44,557 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-29 05:12:44,557 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:12:44,558 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:12:44,558 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:12:44,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:12:44,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,566 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:44,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 05:12:44,568 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:44,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 05:12:44,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-10-29 05:12:44,575 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_29|], 21=[|v_#valid_32|]} [2021-10-29 05:12:44,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:12:44,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:12:44,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:12:44,591 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:44,596 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:12:44,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:12:44,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:12:44,628 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:44,632 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-10-29 05:12:44,635 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,636 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-10-29 05:12:44,644 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-10-29 05:12:44,645 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:44,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 05:12:44,647 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:44,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-29 05:12:44,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:44,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-29 05:12:44,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-10-29 05:12:44,657 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_30|], 28=[|v_#valid_33|]} [2021-10-29 05:12:44,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,738 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-29 05:12:44,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-10-29 05:12:44,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-29 05:12:44,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-29 05:12:44,743 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,752 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 05:12:44,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:12:44,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:12:44,754 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:44,762 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,860 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-10-29 05:12:44,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-10-29 05:12:44,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-29 05:12:44,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-29 05:12:44,867 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:44,875 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-10-29 05:12:44,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-29 05:12:44,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-29 05:12:44,897 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:44,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,908 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-10-29 05:12:44,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-10-29 05:12:44,912 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,912 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:392, output treesize:172 [2021-10-29 05:12:44,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:44,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-29 05:12:44,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-10-29 05:12:44,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:12:44,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:44,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-10-29 05:12:44,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-29 05:12:44,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-29 05:12:44,949 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:44,956 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:44,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-10-29 05:12:44,964 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:12:44,964 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:206, output treesize:209 [2021-10-29 05:12:44,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:44,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,066 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,074 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-10-29 05:12:45,076 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-29 05:12:45,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 440 [2021-10-29 05:12:45,084 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-10-29 05:12:45,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 489 [2021-10-29 05:12:45,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:12:45,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:12:45,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-10-29 05:12:45,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-10-29 05:12:45,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-10-29 05:12:45,149 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2021-10-29 05:12:45,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-29 05:12:45,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-29 05:12:45,177 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,236 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,251 INFO L180 QuantifierPusher]: treesize reduction 131, result has 77.3 percent of original size [2021-10-29 05:12:45,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 445 [2021-10-29 05:12:45,258 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 05:12:45,258 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:590, output treesize:445 [2021-10-29 05:12:45,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,337 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-10-29 05:12:45,338 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-29 05:12:45,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-10-29 05:12:45,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,347 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 27 treesize of output 27 [2021-10-29 05:12:45,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-29 05:12:45,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-29 05:12:45,350 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,352 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-10-29 05:12:45,355 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,355 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-10-29 05:12:45,360 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-10-29 05:12:45,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-29 05:12:45,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,365 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-29 05:12:45,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-10-29 05:12:45,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:12:45,378 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 05:12:45,379 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 1 case distinctions, treesize of input 36 treesize of output 39 [2021-10-29 05:12:45,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:12:45,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:12:45,381 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,383 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-10-29 05:12:45,386 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,386 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:91 [2021-10-29 05:12:45,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,416 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,418 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-29 05:12:45,419 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,420 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-29 05:12:45,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-10-29 05:12:45,422 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-10-29 05:12:45,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-10-29 05:12:45,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,443 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:12:45,447 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 05:12:45,448 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 1 case distinctions, treesize of input 36 treesize of output 39 [2021-10-29 05:12:45,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:12:45,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:12:45,451 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:12:45,466 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:12:45,473 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-10-29 05:12:45,473 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-10-29 05:12:45,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-10-29 05:12:45,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-10-29 05:12:45,476 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,496 INFO L180 QuantifierPusher]: treesize reduction 113, result has 65.1 percent of original size [2021-10-29 05:12:45,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-10-29 05:12:45,498 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 05:12:45,499 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:211 [2021-10-29 05:12:45,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,530 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-10-29 05:12:45,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:12:45,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-29 05:12:45,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-10-29 05:12:45,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:12:45,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 05:12:45,545 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 05:12:45,545 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 1 case distinctions, treesize of input 36 treesize of output 39 [2021-10-29 05:12:45,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:12:45,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:12:45,548 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:12:45,550 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:12:45,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-10-29 05:12:45,552 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:12:45,552 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:89 [2021-10-29 05:12:45,558 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-10-29 05:12:45,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-29 05:12:45,565 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:12:46,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:12:46,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:12:46,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-29 05:12:46,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380387605] [2021-10-29 05:12:46,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-29 05:12:46,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:12:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-29 05:12:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=260, Unknown=4, NotChecked=140, Total=462 [2021-10-29 05:12:46,328 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:12:48,346 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse2 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base))) (and (= (select (let ((.cse1 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse0 (+ .cse1 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse0 (+ .cse1 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select .cse2 (+ .cse1 c_ULTIMATE.start_main_~a~0.offset (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1) (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int) (v_ULTIMATE.start_main_~i~0_115 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse7 (let ((.cse8 (let ((.cse10 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse11 (* ULTIMATE.start_main_~i~0 8))) (store .cse10 (+ .cse11 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse10 (+ .cse11 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4)))) (.cse9 (* v_ULTIMATE.start_main_~i~0_115 8))) (store .cse8 (+ .cse9 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse8 (+ .cse9 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4))))) (let ((.cse5 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse7))) (let ((.cse3 (let ((.cse6 (select .cse5 c_ULTIMATE.start_main_~b~0.base))) (store .cse6 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse6 c_ULTIMATE.start_main_~b~0.offset) (select .cse7 c_ULTIMATE.start_main_~a~0.offset))))) (.cse4 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset .cse4) (+ (select (select (store .cse5 c_ULTIMATE.start_main_~b~0.base .cse3) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse4 (- 8))) (select .cse3 (+ c_ULTIMATE.start_main_~b~0.offset .cse4 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (= (select .cse0 c_ULTIMATE.start_main_~b~0.offset) 1) (= c_ULTIMATE.start_main_~b~0.offset 0) (= 8 (select .cse2 c_ULTIMATE.start_main_~a~0.offset)))) is different from false [2021-10-29 05:12:49,761 WARN L838 $PredicateComparison]: unable to prove that (and (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse4 (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* ULTIMATE.start_main_~i~0 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse4 c_ULTIMATE.start_main_~a~0.offset) (select .cse3 c_ULTIMATE.start_main_~b~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1) (exists ((v_ULTIMATE.start_main_~i~0_105 Int)) (let ((.cse7 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base))) (and (or (= (* 8 v_ULTIMATE.start_main_~i~0_105) 0) (= 8 (select .cse7 c_ULTIMATE.start_main_~a~0.offset))) (let ((.cse8 (* v_ULTIMATE.start_main_~i~0_105 8))) (= (select .cse7 (+ c_ULTIMATE.start_main_~a~0.offset .cse8)) (+ 4 (select .cse7 (+ c_ULTIMATE.start_main_~a~0.offset .cse8 (- 8))))))))) (= c_ULTIMATE.start_main_~b~0.offset 0)) is different from false [2021-10-29 05:12:50,809 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~i~0_105 Int) (v_ULTIMATE.start_main_~i~0_106 Int)) (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* v_ULTIMATE.start_main_~i~0_105 8))) (let ((.cse1 (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse6))) (.cse2 (* 8 v_ULTIMATE.start_main_~i~0_106)) (.cse3 (* 8 v_ULTIMATE.start_main_~i~0_105))) (and (let ((.cse0 (not (= 8 .cse3)))) (or (and (or .cse0 (= .cse1 12)) (= .cse2 0)) (let ((.cse4 (select .cse5 c_ULTIMATE.start_main_~a~0.offset))) (and (or (= .cse3 0) (= 8 .cse4)) (or .cse0 (= .cse1 (+ .cse4 4))))))) (or (= .cse1 (+ 4 (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse6 (- 8))))) (= (+ 8 .cse2) .cse3)) (let ((.cse7 (* v_ULTIMATE.start_main_~i~0_106 8))) (= (+ (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse7 (- 8))) 4) (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse7)))))))) (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1) (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse8 (let ((.cse10 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base))) (store .cse10 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse10 c_ULTIMATE.start_main_~b~0.offset) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) c_ULTIMATE.start_main_~a~0.offset))))) (.cse9 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse8 (+ c_ULTIMATE.start_main_~b~0.offset .cse9) (+ (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse8) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse9 (- 8))) (select .cse8 (+ c_ULTIMATE.start_main_~b~0.offset .cse9 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (= c_ULTIMATE.start_main_~b~0.offset 0)) is different from false [2021-10-29 05:12:51,969 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~i~0_105 Int) (v_ULTIMATE.start_main_~i~0_106 Int)) (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* v_ULTIMATE.start_main_~i~0_105 8))) (let ((.cse1 (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse6))) (.cse2 (* 8 v_ULTIMATE.start_main_~i~0_106)) (.cse3 (* 8 v_ULTIMATE.start_main_~i~0_105))) (and (let ((.cse0 (not (= 8 .cse3)))) (or (and (or .cse0 (= .cse1 12)) (= .cse2 0)) (let ((.cse4 (select .cse5 c_ULTIMATE.start_main_~a~0.offset))) (and (or (= .cse3 0) (= 8 .cse4)) (or .cse0 (= .cse1 (+ .cse4 4))))))) (or (= .cse1 (+ 4 (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse6 (- 8))))) (= (+ 8 .cse2) .cse3)) (let ((.cse7 (* v_ULTIMATE.start_main_~i~0_106 8))) (= (+ (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse7 (- 8))) 4) (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse7)))))))) (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1) (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 (+ c_ULTIMATE.start_main_~i~0 1)) (= (select (let ((.cse8 (let ((.cse10 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse11 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse10 (+ .cse11 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse10 (+ .cse11 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) (+ .cse11 c_ULTIMATE.start_main_~a~0.offset (- 8))))))) (.cse9 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse8 (+ c_ULTIMATE.start_main_~b~0.offset .cse9) (+ (select .cse8 (+ c_ULTIMATE.start_main_~b~0.offset .cse9 (- 8))) (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse8) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse9 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (= c_ULTIMATE.start_main_~i~0 1) (= c_ULTIMATE.start_main_~b~0.offset 0)) is different from false [2021-10-29 05:12:55,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:12:55,245 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2021-10-29 05:12:55,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-29 05:12:55,247 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 05:12:55,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:12:55,248 INFO L225 Difference]: With dead ends: 47 [2021-10-29 05:12:55,248 INFO L226 Difference]: Without dead ends: 45 [2021-10-29 05:12:55,249 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=128, Invalid=546, Unknown=8, NotChecked=440, Total=1122 [2021-10-29 05:12:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-29 05:12:55,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 22. [2021-10-29 05:12:55,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:12:55,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2021-10-29 05:12:55,256 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 11 [2021-10-29 05:12:55,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:12:55,256 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-10-29 05:12:55,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:12:55,256 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2021-10-29 05:12:55,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:12:55,257 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:12:55,257 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:12:55,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:12:55,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:12:55,461 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:12:55,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:12:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash 985561389, now seen corresponding path program 1 times [2021-10-29 05:12:55,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:12:55,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873516591] [2021-10-29 05:12:55,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:12:55,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:12:55,470 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:12:55,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327378781] [2021-10-29 05:12:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:12:55,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:12:55,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:12:55,493 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:12:55,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-29 05:12:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:12:55,631 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:12:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:12:55,691 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:12:55,692 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:12:55,693 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:12:55,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:12:55,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2021-10-29 05:12:55,898 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2021-10-29 05:12:55,900 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:12:55,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:12:55 BoogieIcfgContainer [2021-10-29 05:12:55,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:12:55,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:12:55,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:12:55,925 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:12:55,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:11:23" (3/4) ... [2021-10-29 05:12:55,927 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:12:55,975 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d25f61-c5ce-4d71-93de-fc5bce668717/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:12:55,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:12:55,976 INFO L168 Benchmark]: Toolchain (without parser) took 93628.22 ms. Allocated memory was 86.0 MB in the beginning and 151.0 MB in the end (delta: 65.0 MB). Free memory was 49.7 MB in the beginning and 41.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:12:55,977 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 65.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:12:55,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.19 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.5 MB in the beginning and 81.3 MB in the end (delta: -31.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:12:55,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 79.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:12:55,977 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 78.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:12:55,978 INFO L168 Benchmark]: RCFGBuilder took 455.45 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 64.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:12:55,978 INFO L168 Benchmark]: TraceAbstraction took 92780.86 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 64.3 MB in the beginning and 44.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 69.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:12:55,978 INFO L168 Benchmark]: Witness Printer took 51.45 ms. Allocated memory is still 151.0 MB. Free memory was 44.2 MB in the beginning and 41.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:12:55,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 65.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.19 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.5 MB in the beginning and 81.3 MB in the end (delta: -31.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 79.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.04 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 78.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 455.45 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 64.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 92780.86 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 64.3 MB in the beginning and 44.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 69.0 MB. Max. memory is 16.1 GB. * Witness Printer took 51.45 ms. Allocated memory is still 151.0 MB. Free memory was 44.2 MB in the beginning and 41.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] a[0] = 8 [L32] b[0] = 1 [L34] i=1 VAL [N=2] [L34] COND TRUE i