./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/mcmillan2006.i --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_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/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_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/mcmillan2006.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/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_85e96faa-9002-4c36-a20c-6ddf2f4dff62/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 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:53:20,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:53:20,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:53:20,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:53:20,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:53:20,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:53:20,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:53:20,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:53:20,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:53:20,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:53:20,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:53:20,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:53:20,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:53:20,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:53:20,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:53:20,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:53:20,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:53:20,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:53:20,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:53:20,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:53:20,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:53:20,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:53:20,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:53:20,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:53:20,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:53:20,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:53:20,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:53:20,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:53:20,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:53:20,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:53:20,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:53:20,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:53:20,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:53:20,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:53:20,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:53:20,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:53:20,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:53:20,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:53:20,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:53:20,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:53:20,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:53:20,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:53:20,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:53:20,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:53:20,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:53:20,868 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:53:20,868 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:53:20,868 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:53:20,868 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:53:20,869 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:53:20,876 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:53:20,877 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:53:20,878 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:53:20,878 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:53:20,879 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:53:20,879 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:53:20,879 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:53:20,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:53:20,881 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:53:20,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:53:20,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:53:20,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:53:20,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:53:20,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:53:20,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:53:20,882 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:53:20,883 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:53:20,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:53:20,883 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:53:20,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:53:20,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:53:20,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:53:20,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:20,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:53:20,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:53:20,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:53:20,886 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:53:20,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:53:20,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:53:20,887 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:53:20,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:53:20,887 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_85e96faa-9002-4c36-a20c-6ddf2f4dff62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be [2021-10-29 04:53:21,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:53:21,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:53:21,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:53:21,283 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:53:21,284 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:53:21,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/loop-lit/mcmillan2006.i [2021-10-29 04:53:21,360 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/data/3f9db0481/1b27d72479584c4d929bb46958ad0960/FLAG38b7d0bef [2021-10-29 04:53:21,887 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:53:21,889 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/sv-benchmarks/c/loop-lit/mcmillan2006.i [2021-10-29 04:53:21,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/data/3f9db0481/1b27d72479584c4d929bb46958ad0960/FLAG38b7d0bef [2021-10-29 04:53:22,214 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/data/3f9db0481/1b27d72479584c4d929bb46958ad0960 [2021-10-29 04:53:22,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:53:22,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:53:22,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:22,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:53:22,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:53:22,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f61be55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22, skipping insertion in model container [2021-10-29 04:53:22,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:53:22,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:22,424 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_85e96faa-9002-4c36-a20c-6ddf2f4dff62/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2021-10-29 04:53:22,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:22,462 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:53:22,476 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_85e96faa-9002-4c36-a20c-6ddf2f4dff62/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2021-10-29 04:53:22,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:22,495 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:53:22,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22 WrapperNode [2021-10-29 04:53:22,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:22,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:22,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:53:22,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:53:22,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:22,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:53:22,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:53:22,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:53:22,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:53:22,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:53:22,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:53:22,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:53:22,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:22,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:22,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:53:22,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:53:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:53:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:53:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:53:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:53:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:53:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:53:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:53:22,973 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:53:22,973 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 04:53:22,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:22 BoogieIcfgContainer [2021-10-29 04:53:22,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:53:22,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:53:22,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:53:22,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:53:22,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:53:22" (1/3) ... [2021-10-29 04:53:22,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ecbe4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:22, skipping insertion in model container [2021-10-29 04:53:22,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22" (2/3) ... [2021-10-29 04:53:22,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ecbe4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:22, skipping insertion in model container [2021-10-29 04:53:22,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:22" (3/3) ... [2021-10-29 04:53:22,985 INFO L111 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2021-10-29 04:53:22,990 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:53:22,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:53:23,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:53:23,046 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 04:53:23,047 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:53:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:53:23,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:53:23,066 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:23,066 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 04:53:23,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:23,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:23,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1910556134, now seen corresponding path program 1 times [2021-10-29 04:53:23,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:53:23,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905511259] [2021-10-29 04:53:23,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:23,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:53:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:23,388 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 04:53:23,389 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:53:23,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905511259] [2021-10-29 04:53:23,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905511259] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:23,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:23,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 04:53:23,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531451337] [2021-10-29 04:53:23,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:53:23,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:53:23,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:53:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:53:23,432 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 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 04:53:23,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:23,502 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2021-10-29 04:53:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:53:23,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2021-10-29 04:53:23,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:23,514 INFO L225 Difference]: With dead ends: 21 [2021-10-29 04:53:23,514 INFO L226 Difference]: Without dead ends: 9 [2021-10-29 04:53:23,518 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:53:23,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-29 04:53:23,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-29 04:53:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 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 04:53:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-29 04:53:23,555 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-10-29 04:53:23,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:23,555 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-29 04:53:23,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 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 04:53:23,557 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-10-29 04:53:23,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:53:23,558 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:23,558 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:23,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:53:23,559 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:23,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:23,565 INFO L85 PathProgramCache]: Analyzing trace with hash 896668580, now seen corresponding path program 1 times [2021-10-29 04:53:23,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:53:23,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012493877] [2021-10-29 04:53:23,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:23,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:53:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:23,762 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 04:53:23,762 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:53:23,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012493877] [2021-10-29 04:53:23,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012493877] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 04:53:23,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027206754] [2021-10-29 04:53:23,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:23,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:53:23,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:23,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:53:23,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 04:53:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:23,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:53:23,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:23,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-10-29 04:53:24,013 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 04:53:24,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:24,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 14 treesize of output 12 [2021-10-29 04:53:24,111 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 22 treesize of output 20 [2021-10-29 04:53:24,142 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 04:53:24,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027206754] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:53:24,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1203773526] [2021-10-29 04:53:24,178 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-29 04:53:24,179 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:53:24,183 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:53:24,201 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:53:24,202 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:53:24,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,248 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:24,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 04:53:24,251 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:24,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-10-29 04:53:24,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-10-29 04:53:24,281 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_11|], 10=[|v_#valid_12|]} [2021-10-29 04:53:24,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-29 04:53:24,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 04:53:24,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 04:53:24,296 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,349 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-29 04:53:24,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:24,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:24,373 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-10-29 04:53:24,411 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,412 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:94, output treesize:79 [2021-10-29 04:53:24,422 INFO L180 QuantifierPusher]: treesize reduction 8, result has 93.2 percent of original size [2021-10-29 04:53:24,423 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:24,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-29 04:53:24,431 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:24,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-29 04:53:24,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-10-29 04:53:24,443 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_12|], 10=[|v_#valid_13|]} [2021-10-29 04:53:24,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,469 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 04:53:24,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-29 04:53:24,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-29 04:53:24,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-29 04:53:24,480 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,502 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-10-29 04:53:24,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:53:24,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:53:24,529 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,543 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-10-29 04:53:24,558 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,558 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:109, output treesize:102 [2021-10-29 04:53:24,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,574 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:24,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-29 04:53:24,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-10-29 04:53:24,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-29 04:53:24,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:24,614 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:24,618 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-10-29 04:53:24,642 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,643 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-10-29 04:53:24,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,733 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:24,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,738 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:24,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-29 04:53:24,741 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:24,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-29 04:53:24,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-10-29 04:53:24,750 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:24,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-10-29 04:53:24,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-10-29 04:53:24,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-29 04:53:24,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:24,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:24,814 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:24,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-10-29 04:53:24,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-29 04:53:24,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-29 04:53:24,850 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:24,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,900 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:24,923 INFO L180 QuantifierPusher]: treesize reduction 81, result has 76.5 percent of original size [2021-10-29 04:53:24,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-10-29 04:53:24,930 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 04:53:24,930 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:352, output treesize:263 [2021-10-29 04:53:24,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:24,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:25,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:25,017 INFO L180 QuantifierPusher]: treesize reduction 30, result has 65.9 percent of original size [2021-10-29 04:53:25,026 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:25,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:25,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:25,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-10-29 04:53:25,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-29 04:53:25,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:25,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:53:25,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:25,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:53:25,051 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:25,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:25,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:25,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:25,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-29 04:53:25,058 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:25,059 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2021-10-29 04:53:25,073 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:53:25,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:53:25,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 04:53:25,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2021-10-29 04:53:25,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916994925] [2021-10-29 04:53:25,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:53:25,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:53:25,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:53:25,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-10-29 04:53:25,565 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:53:25,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:25,674 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-29 04:53:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:53:25,675 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-29 04:53:25,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:25,675 INFO L225 Difference]: With dead ends: 15 [2021-10-29 04:53:25,676 INFO L226 Difference]: Without dead ends: 13 [2021-10-29 04:53:25,677 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2021-10-29 04:53:25,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-29 04:53:25,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-29 04:53:25,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 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 04:53:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-29 04:53:25,681 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2021-10-29 04:53:25,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:25,682 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-29 04:53:25,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:53:25,682 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-10-29 04:53:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:53:25,683 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:25,684 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:25,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:25,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-29 04:53:25,903 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:25,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:25,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2037761393, now seen corresponding path program 1 times [2021-10-29 04:53:25,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:53:25,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601370524] [2021-10-29 04:53:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:25,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:53:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:25,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:25,985 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:53:25,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601370524] [2021-10-29 04:53:25,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601370524] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 04:53:25,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881107433] [2021-10-29 04:53:25,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:25,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:53:25,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:25,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:53:26,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 04:53:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:26,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:53:26,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:26,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:26,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881107433] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:53:26,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1237031562] [2021-10-29 04:53:26,223 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-29 04:53:26,224 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:53:26,225 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:53:26,225 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:53:26,225 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:53:26,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,237 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-10-29 04:53:26,239 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 04:53:26,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-10-29 04:53:26,249 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 10=[|v_#valid_15|]} [2021-10-29 04:53:26,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-29 04:53:26,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 04:53:26,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 04:53:26,259 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,266 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-29 04:53:26,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:26,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:26,285 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,289 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-10-29 04:53:26,292 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,293 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:94, output treesize:79 [2021-10-29 04:53:26,298 INFO L180 QuantifierPusher]: treesize reduction 8, result has 93.2 percent of original size [2021-10-29 04:53:26,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-29 04:53:26,302 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-29 04:53:26,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-10-29 04:53:26,310 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_15|], 10=[|v_#valid_16|]} [2021-10-29 04:53:26,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,324 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 04:53:26,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-29 04:53:26,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-29 04:53:26,328 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-29 04:53:26,329 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,337 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-10-29 04:53:26,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:53:26,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:53:26,356 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,362 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-10-29 04:53:26,393 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,393 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:109, output treesize:102 [2021-10-29 04:53:26,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,404 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-29 04:53:26,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-10-29 04:53:26,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-29 04:53:26,420 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:26,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:26,424 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,430 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-10-29 04:53:26,435 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,436 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-10-29 04:53:26,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-29 04:53:26,519 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-29 04:53:26,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-10-29 04:53:26,525 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-10-29 04:53:26,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-10-29 04:53:26,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-10-29 04:53:26,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-29 04:53:26,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-29 04:53:26,572 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:26,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-29 04:53:26,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:26,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:26,596 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,620 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,633 INFO L180 QuantifierPusher]: treesize reduction 81, result has 76.5 percent of original size [2021-10-29 04:53:26,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-10-29 04:53:26,637 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 04:53:26,638 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:352, output treesize:263 [2021-10-29 04:53:26,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,687 INFO L180 QuantifierPusher]: treesize reduction 30, result has 65.9 percent of original size [2021-10-29 04:53:26,689 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:26,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:26,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-10-29 04:53:26,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-29 04:53:26,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:53:26,699 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:53:26,700 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,702 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:26,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-29 04:53:26,704 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:26,704 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2021-10-29 04:53:26,713 INFO L180 QuantifierPusher]: treesize reduction 31, result has 72.8 percent of original size [2021-10-29 04:53:26,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-10-29 04:53:26,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:26,749 INFO L180 QuantifierPusher]: treesize reduction 30, result has 72.7 percent of original size [2021-10-29 04:53:26,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-29 04:53:26,767 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:53:27,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:53:27,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 04:53:27,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2021-10-29 04:53:27,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081394600] [2021-10-29 04:53:27,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:53:27,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:53:27,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:53:27,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-10-29 04:53:27,292 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 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 04:53:27,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:27,340 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-10-29 04:53:27,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:53:27,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 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 04:53:27,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:27,341 INFO L225 Difference]: With dead ends: 21 [2021-10-29 04:53:27,341 INFO L226 Difference]: Without dead ends: 12 [2021-10-29 04:53:27,342 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2021-10-29 04:53:27,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-29 04:53:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-29 04:53:27,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:53:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-10-29 04:53:27,344 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2021-10-29 04:53:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:27,345 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-10-29 04:53:27,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 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 04:53:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-10-29 04:53:27,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:53:27,345 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:27,346 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:27,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:27,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:53:27,558 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:27,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash 778125081, now seen corresponding path program 2 times [2021-10-29 04:53:27,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:53:27,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562710379] [2021-10-29 04:53:27,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:27,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:53:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:27,677 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:27,678 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:53:27,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562710379] [2021-10-29 04:53:27,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562710379] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 04:53:27,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029769593] [2021-10-29 04:53:27,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 04:53:27,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:53:27,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:27,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:53:27,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-29 04:53:27,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-29 04:53:27,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 04:53:27,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 04:53:27,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:27,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2021-10-29 04:53:28,069 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-29 04:53:28,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 37 [2021-10-29 04:53:28,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:28,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:28,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 25 [2021-10-29 04:53:28,312 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 42 treesize of output 36 [2021-10-29 04:53:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:28,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029769593] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:53:28,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [28317893] [2021-10-29 04:53:28,326 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-29 04:53:28,327 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:53:28,327 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:53:28,327 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:53:28,327 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:53:28,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,334 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-10-29 04:53:28,335 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 04:53:28,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-10-29 04:53:28,340 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 10=[|v_#valid_18|]} [2021-10-29 04:53:28,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-29 04:53:28,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 04:53:28,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 04:53:28,348 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-29 04:53:28,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:28,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:28,365 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,370 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-10-29 04:53:28,373 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,373 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:94, output treesize:79 [2021-10-29 04:53:28,378 INFO L180 QuantifierPusher]: treesize reduction 8, result has 93.2 percent of original size [2021-10-29 04:53:28,379 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-29 04:53:28,383 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-29 04:53:28,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-10-29 04:53:28,389 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_18|], 10=[|v_#valid_19|]} [2021-10-29 04:53:28,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,402 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 04:53:28,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-29 04:53:28,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-29 04:53:28,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-29 04:53:28,406 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,410 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-10-29 04:53:28,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:53:28,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:53:28,426 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,430 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-10-29 04:53:28,447 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,447 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:109, output treesize:102 [2021-10-29 04:53:28,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,454 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-29 04:53:28,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-10-29 04:53:28,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-29 04:53:28,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:28,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:28,473 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,477 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-10-29 04:53:28,482 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,482 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-10-29 04:53:28,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,536 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,541 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-29 04:53:28,543 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-29 04:53:28,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-10-29 04:53:28,549 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-10-29 04:53:28,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-10-29 04:53:28,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-10-29 04:53:28,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-29 04:53:28,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-29 04:53:28,590 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:28,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-29 04:53:28,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:28,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-29 04:53:28,609 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,642 INFO L180 QuantifierPusher]: treesize reduction 81, result has 76.5 percent of original size [2021-10-29 04:53:28,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-10-29 04:53:28,647 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-29 04:53:28,647 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:352, output treesize:263 [2021-10-29 04:53:28,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,697 INFO L180 QuantifierPusher]: treesize reduction 30, result has 65.9 percent of original size [2021-10-29 04:53:28,698 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:28,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:28,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-10-29 04:53:28,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-29 04:53:28,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:53:28,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:53:28,710 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,712 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-29 04:53:28,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:28,714 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2021-10-29 04:53:28,721 INFO L180 QuantifierPusher]: treesize reduction 31, result has 72.8 percent of original size [2021-10-29 04:53:28,724 INFO L185 QuantifierPusher]: treesize reduction 3, result has 95.9 percent of original size 71 [2021-10-29 04:53:28,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:28,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-10-29 04:53:28,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:28,812 INFO L180 QuantifierPusher]: treesize reduction 30, result has 72.7 percent of original size [2021-10-29 04:53:28,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-29 04:53:28,821 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:53:29,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:53:29,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 04:53:29,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2021-10-29 04:53:29,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470438477] [2021-10-29 04:53:29,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-29 04:53:29,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:53:29,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-29 04:53:29,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2021-10-29 04:53:29,454 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 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 04:53:30,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:30,025 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-10-29 04:53:30,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 04:53:30,026 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 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) Word has length 11 [2021-10-29 04:53:30,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:30,026 INFO L225 Difference]: With dead ends: 22 [2021-10-29 04:53:30,026 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:53:30,027 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=206, Invalid=1054, Unknown=0, NotChecked=0, Total=1260 [2021-10-29 04:53:30,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:53:30,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:53:30,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:53:30,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:53:30,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-29 04:53:30,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:30,028 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:53:30,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 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 04:53:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:53:30,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:53:30,031 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:53:30,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:30,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:53:30,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:53:30,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:30,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:30,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:30,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:30,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:53:30,813 INFO L853 garLoopResultBuilder]: At program point L31-3(line 31) the Hoare annotation is: (let ((.cse8 (select |#memory_int| ULTIMATE.start_main_~x~0.base))) (let ((.cse6 (= ULTIMATE.start_main_~i~1 0)) (.cse3 (= (select .cse8 (+ ULTIMATE.start_main_~x~0.offset (* ULTIMATE.start_main_~i~1 4))) 0)) (.cse5 (forall ((v_ULTIMATE.start_main_~i~1_24 Int)) (or (<= ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~i~1_24) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_24 4))) 0) (< v_ULTIMATE.start_main_~i~1_24 (+ ULTIMATE.start_main_~i~1 1))))) (.cse7 (= (select .cse8 (+ ULTIMATE.start_main_~x~0.offset 4)) 0)) (.cse4 (forall ((v_ULTIMATE.start_main_~i~1_24 Int)) (or (< v_ULTIMATE.start_main_~i~1_24 1) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_24 4))) 0) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~i~1_24)))) (.cse0 (= ULTIMATE.start_main_~x~0.offset 0)) (.cse1 (= (select .cse8 0) 0)) (.cse2 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and (<= ULTIMATE.start_main_~i~0 1) (<= ULTIMATE.start_main_~n~0 1) .cse0 .cse1 (<= 1 ULTIMATE.start_main_~i~1) .cse2) (and .cse3 .cse4 .cse0 .cse5 .cse6) (and (= ULTIMATE.start_main_~i~0 0) (<= ULTIMATE.start_main_~n~0 0) .cse6) (and .cse7 .cse3 .cse4 .cse0 .cse1 .cse5 .cse2) (and .cse7 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse4 (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~i~1) .cse0 .cse1 .cse2)))) [2021-10-29 04:53:30,814 INFO L857 garLoopResultBuilder]: For program point L19(lines 19 21) no Hoare annotation was computed. [2021-10-29 04:53:30,814 INFO L853 garLoopResultBuilder]: At program point L19-2(lines 18 23) the Hoare annotation is: (let ((.cse5 (select |#memory_int| ULTIMATE.start_main_~x~0.base))) (let ((.cse0 (forall ((v_ULTIMATE.start_main_~i~1_24 Int)) (or (< v_ULTIMATE.start_main_~i~1_24 1) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_24 4))) 0) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~i~1_24)))) (.cse1 (= ULTIMATE.start_main_~x~0.offset 0)) (.cse2 (= (select .cse5 0) 0)) (.cse3 (forall ((v_ULTIMATE.start_main_~i~1_24 Int)) (or (<= ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~i~1_24) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_24 4))) 0) (< v_ULTIMATE.start_main_~i~1_24 (+ ULTIMATE.start_main_~i~1 1))))) (.cse4 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~i~1 0) .cse4) (and (= (select .cse5 (+ ULTIMATE.start_main_~x~0.offset 4)) 0) (= (select .cse5 (+ ULTIMATE.start_main_~x~0.offset (* ULTIMATE.start_main_~i~1 4))) 0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 .cse1 .cse2 .cse3 .cse4)))) [2021-10-29 04:53:30,814 INFO L860 garLoopResultBuilder]: At program point L32(lines 26 33) the Hoare annotation is: true [2021-10-29 04:53:30,814 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:53:30,814 INFO L857 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-10-29 04:53:30,815 INFO L853 garLoopResultBuilder]: At program point L30-3(line 30) the Hoare annotation is: (let ((.cse2 (select |#memory_int| ULTIMATE.start_main_~x~0.base))) (let ((.cse0 (= ULTIMATE.start_main_~x~0.offset 0)) (.cse1 (= (select .cse2 0) 0))) (or (and (<= 1 ULTIMATE.start_main_~i~0) .cse0 (exists ((v_ULTIMATE.start_main_~i~0_28 Int)) (and (<= ULTIMATE.start_main_~i~0 (+ v_ULTIMATE.start_main_~i~0_28 1)) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~0_28 4))) 0) (<= v_ULTIMATE.start_main_~i~0_28 1))) .cse1) (and (= ULTIMATE.start_main_~i~0 0) (= (+ (* 4 ULTIMATE.start_main_~i~0) ULTIMATE.start_main_~x~0.offset) 0)) (and (= (select .cse2 (+ ULTIMATE.start_main_~x~0.offset 4)) 0) (forall ((v_ULTIMATE.start_main_~i~1_24 Int)) (or (< v_ULTIMATE.start_main_~i~1_24 1) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_24 4))) 0) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~i~1_24))) .cse0 .cse1)))) [2021-10-29 04:53:30,815 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2021-10-29 04:53:30,815 INFO L857 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-10-29 04:53:30,818 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-10-29 04:53:30,819 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:53:30,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,829 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,829 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,829 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,829 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,841 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,843 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,843 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,843 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,844 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,844 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,844 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,845 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,845 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,846 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,846 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,846 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,846 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,848 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,848 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,848 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,848 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,849 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,850 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,850 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,850 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,850 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:53:30 BoogieIcfgContainer [2021-10-29 04:53:30,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:53:30,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:53:30,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:53:30,860 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:53:30,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:22" (3/4) ... [2021-10-29 04:53:30,863 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:53:30,871 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-29 04:53:30,872 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 04:53:30,872 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:53:30,872 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:53:30,895 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= i && x == 0) && (\exists v_ULTIMATE.start_main_~i~0_28 : int :: (i <= v_ULTIMATE.start_main_~i~0_28 + 1 && unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~0_28 * 4] == 0) && v_ULTIMATE.start_main_~i~0_28 <= 1)) && unknown-#memory_int-unknown[x][0] == 0) || (i == 0 && 4 * i + x == 0)) || (((unknown-#memory_int-unknown[x][x + 4] == 0 && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (v_ULTIMATE.start_main_~i~1_24 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_24)) && x == 0) && unknown-#memory_int-unknown[x][0] == 0) [2021-10-29 04:53:30,904 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:53:30,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:53:30,906 INFO L168 Benchmark]: Toolchain (without parser) took 8687.06 ms. Allocated memory was 136.3 MB in the beginning and 207.6 MB in the end (delta: 71.3 MB). Free memory was 99.9 MB in the beginning and 86.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:30,906 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 112.1 MB in the beginning and 112.1 MB in the end (delta: 30.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:30,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.16 ms. Allocated memory is still 136.3 MB. Free memory was 99.7 MB in the beginning and 110.1 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:30,907 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.05 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 108.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:30,907 INFO L168 Benchmark]: Boogie Preprocessor took 52.30 ms. Allocated memory is still 136.3 MB. Free memory was 108.7 MB in the beginning and 107.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:30,907 INFO L168 Benchmark]: RCFGBuilder took 389.34 ms. Allocated memory is still 136.3 MB. Free memory was 107.3 MB in the beginning and 96.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:30,908 INFO L168 Benchmark]: TraceAbstraction took 7880.91 ms. Allocated memory was 136.3 MB in the beginning and 207.6 MB in the end (delta: 71.3 MB). Free memory was 95.5 MB in the beginning and 89.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 80.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:30,908 INFO L168 Benchmark]: Witness Printer took 45.73 ms. Allocated memory is still 207.6 MB. Free memory was 89.8 MB in the beginning and 86.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:30,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 112.1 MB in the beginning and 112.1 MB in the end (delta: 30.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.16 ms. Allocated memory is still 136.3 MB. Free memory was 99.7 MB in the beginning and 110.1 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.05 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 108.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.30 ms. Allocated memory is still 136.3 MB. Free memory was 108.7 MB in the beginning and 107.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 389.34 ms. Allocated memory is still 136.3 MB. Free memory was 107.3 MB in the beginning and 96.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7880.91 ms. Allocated memory was 136.3 MB in the beginning and 207.6 MB in the end (delta: 71.3 MB). Free memory was 95.5 MB in the beginning and 89.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 80.0 MB. Max. memory is 16.1 GB. * Witness Printer took 45.73 ms. Allocated memory is still 207.6 MB. Free memory was 89.8 MB in the beginning and 86.7 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 47 SDslu, 54 SDs, 0 SdLazy, 168 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 23 NumberOfFragments, 441 HoareAnnotationTreeSize, 4 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 718 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 80 ConstructedInterpolants, 9 QuantifiedInterpolants, 544 SizeOfPredicates, 24 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 6/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2021-10-29 04:53:30,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,925 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,925 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,925 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,926 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] Derived loop invariant: ((((((forall v_ULTIMATE.start_main_~i~1_24 : int :: (v_ULTIMATE.start_main_~i~1_24 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_24) && x == 0) && unknown-#memory_int-unknown[x][0] == 0) && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (n <= v_ULTIMATE.start_main_~i~1_24 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || v_ULTIMATE.start_main_~i~1_24 < i + 1)) && i == 0) && !(0 == cond)) || (((((((unknown-#memory_int-unknown[x][x + 4] == 0 && unknown-#memory_int-unknown[x][x + i * 4] == 0) && 1 <= cond) && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (v_ULTIMATE.start_main_~i~1_24 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_24)) && x == 0) && unknown-#memory_int-unknown[x][0] == 0) && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (n <= v_ULTIMATE.start_main_~i~1_24 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || v_ULTIMATE.start_main_~i~1_24 < i + 1)) && !(0 == cond)) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant [2021-10-29 04:53:30,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,931 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,931 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,931 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,932 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,932 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_28,QUANTIFIED] [2021-10-29 04:53:30,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,936 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] Derived loop invariant: ((((1 <= i && x == 0) && (\exists v_ULTIMATE.start_main_~i~0_28 : int :: (i <= v_ULTIMATE.start_main_~i~0_28 + 1 && unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~0_28 * 4] == 0) && v_ULTIMATE.start_main_~i~0_28 <= 1)) && unknown-#memory_int-unknown[x][0] == 0) || (i == 0 && 4 * i + x == 0)) || (((unknown-#memory_int-unknown[x][x + 4] == 0 && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (v_ULTIMATE.start_main_~i~1_24 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_24)) && x == 0) && unknown-#memory_int-unknown[x][0] == 0) - InvariantResult [Line: 31]: Loop Invariant [2021-10-29 04:53:30,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,940 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,941 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,941 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,943 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,943 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,943 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,943 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,943 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,944 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,944 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] [2021-10-29 04:53:30,944 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_24,QUANTIFIED] Derived loop invariant: ((((((((i <= 1 && n <= 1) && x == 0) && unknown-#memory_int-unknown[x][0] == 0) && 1 <= i) && !(0 == cond)) || ((((unknown-#memory_int-unknown[x][x + i * 4] == 0 && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (v_ULTIMATE.start_main_~i~1_24 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_24)) && x == 0) && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (n <= v_ULTIMATE.start_main_~i~1_24 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || v_ULTIMATE.start_main_~i~1_24 < i + 1)) && i == 0)) || ((i == 0 && n <= 0) && i == 0)) || ((((((unknown-#memory_int-unknown[x][x + 4] == 0 && unknown-#memory_int-unknown[x][x + i * 4] == 0) && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (v_ULTIMATE.start_main_~i~1_24 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_24)) && x == 0) && unknown-#memory_int-unknown[x][0] == 0) && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (n <= v_ULTIMATE.start_main_~i~1_24 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || v_ULTIMATE.start_main_~i~1_24 < i + 1)) && !(0 == cond))) || ((((((unknown-#memory_int-unknown[x][x + 4] == 0 && 1 <= cond) && (forall v_ULTIMATE.start_main_~i~1_24 : int :: (v_ULTIMATE.start_main_~i~1_24 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_24 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_24)) && n <= i) && x == 0) && unknown-#memory_int-unknown[x][0] == 0) && !(0 == cond)) RESULT: Ultimate proved your program to be correct! [2021-10-29 04:53:30,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e96faa-9002-4c36-a20c-6ddf2f4dff62/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...