./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS --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 64bit --witnessprinter.graph.data.programhash 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:06:55,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:06:55,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:06:55,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:06:55,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:06:55,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:06:55,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:06:55,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:06:55,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:06:55,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:06:55,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:06:55,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:06:55,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:06:55,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:06:55,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:06:55,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:06:55,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:06:55,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:06:55,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:06:55,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:06:55,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:06:55,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:06:55,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:06:55,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:06:55,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:06:55,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:06:55,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:06:55,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:06:55,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:06:55,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:06:55,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:06:55,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:06:55,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:06:55,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:06:55,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:06:55,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:06:55,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:06:55,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:06:55,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:06:55,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:06:55,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:06:55,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:06:55,206 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:06:55,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:06:55,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:06:55,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:06:55,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:06:55,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:06:55,209 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:06:55,209 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:06:55,209 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:06:55,210 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:06:55,210 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:06:55,210 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:06:55,211 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:06:55,211 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:06:55,211 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:06:55,212 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:06:55,212 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:06:55,212 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:06:55,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:06:55,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:06:55,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:06:55,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:06:55,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:06:55,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:06:55,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:06:55,215 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:06:55,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:06:55,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:06:55,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:06:55,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:06:55,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:06:55,217 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:06:55,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:06:55,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:06:55,218 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:06:55,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:06:55,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:06:55,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:06:55,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2022-11-19 07:06:55,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:06:55,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:06:55,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:06:55,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:06:55,562 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:06:55,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2022-11-19 07:06:55,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/data/3a8406681/fc57bbf1462f4d309ada73d8be405461/FLAG9ab9dd7df [2022-11-19 07:06:56,507 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:06:56,508 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2022-11-19 07:06:56,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/data/3a8406681/fc57bbf1462f4d309ada73d8be405461/FLAG9ab9dd7df [2022-11-19 07:06:56,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/data/3a8406681/fc57bbf1462f4d309ada73d8be405461 [2022-11-19 07:06:56,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:06:56,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:06:56,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:06:56,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:06:56,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:06:56,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:56" (1/1) ... [2022-11-19 07:06:56,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48de196f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:56, skipping insertion in model container [2022-11-19 07:06:56,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:56" (1/1) ... [2022-11-19 07:06:56,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:06:56,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:06:57,432 WARN L234 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_769fdec4-1cc7-4988-9be5-02eda31e8f3c/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2022-11-19 07:06:57,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:06:57,942 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:06:58,085 WARN L234 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_769fdec4-1cc7-4988-9be5-02eda31e8f3c/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2022-11-19 07:06:58,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:06:58,290 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:06:58,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58 WrapperNode [2022-11-19 07:06:58,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:06:58,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:06:58,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:06:58,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:06:58,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,469 INFO L138 Inliner]: procedures = 114, calls = 1219, calls flagged for inlining = 51, calls inlined = 48, statements flattened = 2200 [2022-11-19 07:06:58,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:06:58,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:06:58,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:06:58,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:06:58,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,576 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:06:58,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:06:58,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:06:58,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:06:58,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (1/1) ... [2022-11-19 07:06:58,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:06:58,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:58,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:06:58,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:06:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:06:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 07:06:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 07:06:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:06:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:06:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:06:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 07:06:58,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 07:06:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:06:58,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:06:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-19 07:06:58,694 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-19 07:06:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:06:58,694 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:06:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:06:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:06:58,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:06:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:06:58,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:06:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:06:58,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:06:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:06:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-19 07:06:58,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-19 07:06:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2022-11-19 07:06:58,697 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2022-11-19 07:06:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-19 07:06:58,697 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-19 07:06:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:06:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:06:58,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:06:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:06:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:06:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-11-19 07:06:58,698 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-11-19 07:06:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-19 07:06:58,699 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-19 07:06:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:06:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:06:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2022-11-19 07:06:58,700 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2022-11-19 07:06:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:06:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:06:58,700 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:06:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-19 07:06:58,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-19 07:06:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:06:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:06:58,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:06:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:06:58,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:06:59,261 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:06:59,264 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:06:59,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:06:59,508 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-19 07:07:01,907 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:07:02,394 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:07:02,394 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:07:02,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:07:02 BoogieIcfgContainer [2022-11-19 07:07:02,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:07:02,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:07:02,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:07:02,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:07:02,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:06:56" (1/3) ... [2022-11-19 07:07:02,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522319ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:07:02, skipping insertion in model container [2022-11-19 07:07:02,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:58" (2/3) ... [2022-11-19 07:07:02,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522319ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:07:02, skipping insertion in model container [2022-11-19 07:07:02,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:07:02" (3/3) ... [2022-11-19 07:07:02,412 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2022-11-19 07:07:02,432 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:07:02,432 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:07:02,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:07:02,607 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3620bf7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:07:02,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:07:02,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 315 states, 208 states have (on average 1.4182692307692308) internal successors, (295), 219 states have internal predecessors, (295), 88 states have call successors, (88), 19 states have call predecessors, (88), 17 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2022-11-19 07:07:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:07:02,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:02,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:02,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:02,686 INFO L85 PathProgramCache]: Analyzing trace with hash 578901430, now seen corresponding path program 1 times [2022-11-19 07:07:02,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:02,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798264576] [2022-11-19 07:07:02,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:02,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:07:03,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:03,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798264576] [2022-11-19 07:07:03,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798264576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:07:03,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:07:03,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:07:03,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664671020] [2022-11-19 07:07:03,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:07:03,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:07:03,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:07:03,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:07:03,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:03,388 INFO L87 Difference]: Start difference. First operand has 315 states, 208 states have (on average 1.4182692307692308) internal successors, (295), 219 states have internal predecessors, (295), 88 states have call successors, (88), 19 states have call predecessors, (88), 17 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:07:04,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:07:04,850 INFO L93 Difference]: Finished difference Result 919 states and 1404 transitions. [2022-11-19 07:07:04,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:07:04,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-19 07:07:04,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:07:04,871 INFO L225 Difference]: With dead ends: 919 [2022-11-19 07:07:04,876 INFO L226 Difference]: Without dead ends: 593 [2022-11-19 07:07:04,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:04,892 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 426 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:07:04,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 835 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 07:07:04,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-11-19 07:07:05,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2022-11-19 07:07:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 399 states have (on average 1.3759398496240602) internal successors, (549), 405 states have internal predecessors, (549), 161 states have call successors, (161), 33 states have call predecessors, (161), 32 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2022-11-19 07:07:05,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 866 transitions. [2022-11-19 07:07:05,013 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 866 transitions. Word has length 17 [2022-11-19 07:07:05,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:07:05,013 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 866 transitions. [2022-11-19 07:07:05,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:07:05,014 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 866 transitions. [2022-11-19 07:07:05,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 07:07:05,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:05,016 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:05,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:07:05,017 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:05,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:05,018 INFO L85 PathProgramCache]: Analyzing trace with hash -734113554, now seen corresponding path program 1 times [2022-11-19 07:07:05,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:05,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990618876] [2022-11-19 07:07:05,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:05,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:07:05,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:05,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990618876] [2022-11-19 07:07:05,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990618876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:07:05,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:07:05,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:07:05,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082308303] [2022-11-19 07:07:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:07:05,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:07:05,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:07:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:07:05,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:05,662 INFO L87 Difference]: Start difference. First operand 593 states and 866 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:06,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:07:06,786 INFO L93 Difference]: Finished difference Result 773 states and 1094 transitions. [2022-11-19 07:07:06,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:07:06,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-19 07:07:06,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:07:06,794 INFO L225 Difference]: With dead ends: 773 [2022-11-19 07:07:06,794 INFO L226 Difference]: Without dead ends: 770 [2022-11-19 07:07:06,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:06,796 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 115 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:07:06,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 752 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 07:07:06,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-11-19 07:07:06,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 758. [2022-11-19 07:07:06,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 513 states have (on average 1.3567251461988303) internal successors, (696), 523 states have internal predecessors, (696), 193 states have call successors, (193), 52 states have call predecessors, (193), 51 states have return successors, (188), 186 states have call predecessors, (188), 188 states have call successors, (188) [2022-11-19 07:07:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1077 transitions. [2022-11-19 07:07:06,860 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1077 transitions. Word has length 25 [2022-11-19 07:07:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:07:06,860 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 1077 transitions. [2022-11-19 07:07:06,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:06,861 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1077 transitions. [2022-11-19 07:07:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 07:07:06,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:06,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:06,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:07:06,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:06,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1282896824, now seen corresponding path program 1 times [2022-11-19 07:07:06,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:06,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062617979] [2022-11-19 07:07:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:06,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:07:07,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:07,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062617979] [2022-11-19 07:07:07,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062617979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:07:07,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:07:07,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:07:07,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183310518] [2022-11-19 07:07:07,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:07:07,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:07:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:07:07,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:07:07,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:07,405 INFO L87 Difference]: Start difference. First operand 758 states and 1077 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:08,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:07:08,512 INFO L93 Difference]: Finished difference Result 1667 states and 2343 transitions. [2022-11-19 07:07:08,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:07:08,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-19 07:07:08,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:07:08,521 INFO L225 Difference]: With dead ends: 1667 [2022-11-19 07:07:08,521 INFO L226 Difference]: Without dead ends: 918 [2022-11-19 07:07:08,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:08,524 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 100 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:07:08,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 747 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 07:07:08,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2022-11-19 07:07:08,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 908. [2022-11-19 07:07:08,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 618 states have (on average 1.343042071197411) internal successors, (830), 632 states have internal predecessors, (830), 219 states have call successors, (219), 71 states have call predecessors, (219), 70 states have return successors, (214), 210 states have call predecessors, (214), 214 states have call successors, (214) [2022-11-19 07:07:08,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1263 transitions. [2022-11-19 07:07:08,599 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1263 transitions. Word has length 26 [2022-11-19 07:07:08,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:07:08,600 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1263 transitions. [2022-11-19 07:07:08,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:08,601 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1263 transitions. [2022-11-19 07:07:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:07:08,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:08,602 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:08,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:07:08,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:08,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1115304143, now seen corresponding path program 1 times [2022-11-19 07:07:08,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:08,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758580346] [2022-11-19 07:07:08,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:08,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:08,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:07:08,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:08,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758580346] [2022-11-19 07:07:08,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758580346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:07:08,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:07:08,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:07:08,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458918856] [2022-11-19 07:07:08,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:07:08,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:07:08,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:07:08,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:07:08,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:08,778 INFO L87 Difference]: Start difference. First operand 908 states and 1263 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:10,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:07:10,092 INFO L93 Difference]: Finished difference Result 916 states and 1270 transitions. [2022-11-19 07:07:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:07:10,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-19 07:07:10,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:07:10,100 INFO L225 Difference]: With dead ends: 916 [2022-11-19 07:07:10,100 INFO L226 Difference]: Without dead ends: 913 [2022-11-19 07:07:10,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:10,102 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 97 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:07:10,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 744 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 07:07:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-11-19 07:07:10,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 909. [2022-11-19 07:07:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 619 states have (on average 1.3424878836833603) internal successors, (831), 633 states have internal predecessors, (831), 219 states have call successors, (219), 71 states have call predecessors, (219), 70 states have return successors, (214), 210 states have call predecessors, (214), 214 states have call successors, (214) [2022-11-19 07:07:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1264 transitions. [2022-11-19 07:07:10,185 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1264 transitions. Word has length 27 [2022-11-19 07:07:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:07:10,185 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1264 transitions. [2022-11-19 07:07:10,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:10,186 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1264 transitions. [2022-11-19 07:07:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:07:10,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:10,188 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:10,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:07:10,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:10,190 INFO L85 PathProgramCache]: Analyzing trace with hash -214893461, now seen corresponding path program 1 times [2022-11-19 07:07:10,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:10,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903735270] [2022-11-19 07:07:10,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:10,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:07:10,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:10,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903735270] [2022-11-19 07:07:10,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903735270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:07:10,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:07:10,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:07:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116435548] [2022-11-19 07:07:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:07:10,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:07:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:07:10,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:07:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:10,364 INFO L87 Difference]: Start difference. First operand 909 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:11,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:07:11,246 INFO L93 Difference]: Finished difference Result 911 states and 1265 transitions. [2022-11-19 07:07:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:07:11,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-19 07:07:11,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:07:11,252 INFO L225 Difference]: With dead ends: 911 [2022-11-19 07:07:11,252 INFO L226 Difference]: Without dead ends: 908 [2022-11-19 07:07:11,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:11,254 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 428 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:07:11,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 367 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 07:07:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-11-19 07:07:11,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 908. [2022-11-19 07:07:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 619 states have (on average 1.3408723747980613) internal successors, (830), 632 states have internal predecessors, (830), 218 states have call successors, (218), 71 states have call predecessors, (218), 70 states have return successors, (214), 210 states have call predecessors, (214), 214 states have call successors, (214) [2022-11-19 07:07:11,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1262 transitions. [2022-11-19 07:07:11,312 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1262 transitions. Word has length 28 [2022-11-19 07:07:11,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:07:11,313 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1262 transitions. [2022-11-19 07:07:11,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1262 transitions. [2022-11-19 07:07:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 07:07:11,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:11,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:11,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:07:11,315 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:11,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1928038772, now seen corresponding path program 1 times [2022-11-19 07:07:11,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:11,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118319532] [2022-11-19 07:07:11,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:11,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:11,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:07:11,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:11,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118319532] [2022-11-19 07:07:11,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118319532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:07:11,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:07:11,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:07:11,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156428347] [2022-11-19 07:07:11,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:07:11,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:07:11,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:07:11,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:07:11,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:11,460 INFO L87 Difference]: Start difference. First operand 908 states and 1262 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:12,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:07:12,158 INFO L93 Difference]: Finished difference Result 910 states and 1263 transitions. [2022-11-19 07:07:12,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:07:12,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-11-19 07:07:12,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:07:12,164 INFO L225 Difference]: With dead ends: 910 [2022-11-19 07:07:12,164 INFO L226 Difference]: Without dead ends: 901 [2022-11-19 07:07:12,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:12,165 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 425 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:07:12,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 366 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 07:07:12,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-11-19 07:07:12,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2022-11-19 07:07:12,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 613 states have (on average 1.3393148450244698) internal successors, (821), 625 states have internal predecessors, (821), 217 states have call successors, (217), 71 states have call predecessors, (217), 70 states have return successors, (214), 210 states have call predecessors, (214), 214 states have call successors, (214) [2022-11-19 07:07:12,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1252 transitions. [2022-11-19 07:07:12,232 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1252 transitions. Word has length 29 [2022-11-19 07:07:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:07:12,233 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1252 transitions. [2022-11-19 07:07:12,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:07:12,233 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1252 transitions. [2022-11-19 07:07:12,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 07:07:12,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:12,239 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:12,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:07:12,239 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:12,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:12,240 INFO L85 PathProgramCache]: Analyzing trace with hash -426004648, now seen corresponding path program 1 times [2022-11-19 07:07:12,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:12,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953752034] [2022-11-19 07:07:12,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:12,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:12,507 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 07:07:12,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:12,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953752034] [2022-11-19 07:07:12,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953752034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:07:12,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:07:12,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:07:12,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239518340] [2022-11-19 07:07:12,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:07:12,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:07:12,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:07:12,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:07:12,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:12,510 INFO L87 Difference]: Start difference. First operand 901 states and 1252 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 07:07:13,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:07:13,711 INFO L93 Difference]: Finished difference Result 1437 states and 1996 transitions. [2022-11-19 07:07:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:07:13,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2022-11-19 07:07:13,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:07:13,716 INFO L225 Difference]: With dead ends: 1437 [2022-11-19 07:07:13,716 INFO L226 Difference]: Without dead ends: 545 [2022-11-19 07:07:13,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:13,719 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 36 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:07:13,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 721 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 07:07:13,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-11-19 07:07:13,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 534. [2022-11-19 07:07:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 378 states have (on average 1.3597883597883598) internal successors, (514), 385 states have internal predecessors, (514), 114 states have call successors, (114), 42 states have call predecessors, (114), 41 states have return successors, (111), 109 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-19 07:07:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 739 transitions. [2022-11-19 07:07:13,756 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 739 transitions. Word has length 79 [2022-11-19 07:07:13,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:07:13,757 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 739 transitions. [2022-11-19 07:07:13,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 07:07:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 739 transitions. [2022-11-19 07:07:13,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-19 07:07:13,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:13,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:13,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:07:13,760 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:13,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:13,760 INFO L85 PathProgramCache]: Analyzing trace with hash -234636619, now seen corresponding path program 1 times [2022-11-19 07:07:13,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:13,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738283823] [2022-11-19 07:07:13,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:13,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-19 07:07:15,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:15,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738283823] [2022-11-19 07:07:15,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738283823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:07:15,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878194756] [2022-11-19 07:07:15,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:15,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:07:15,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:07:15,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:07:15,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:07:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:15,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 2318 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-19 07:07:15,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:07:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-19 07:07:16,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:07:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-19 07:07:16,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878194756] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:07:16,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2046598542] [2022-11-19 07:07:16,988 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-19 07:07:16,988 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:07:16,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:07:16,998 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:07:16,999 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:07:24,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:24,555 INFO L217 Elim1Store]: Index analysis took 507 ms [2022-11-19 07:07:24,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 302 select indices, 302 select index equivalence classes, 4031 disjoint index pairs (out of 45451 index pairs), introduced 302 new quantified variables, introduced 0 case distinctions, treesize of input 2291 treesize of output 907 [2022-11-19 07:07:29,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:07:29,722 INFO L217 Elim1Store]: Index analysis took 280 ms [2022-11-19 07:07:29,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 302 select indices, 302 select index equivalence classes, 4031 disjoint index pairs (out of 45451 index pairs), introduced 302 new quantified variables, introduced 0 case distinctions, treesize of input 2291 treesize of output 907 [2022-11-19 07:07:33,739 INFO L321 Elim1Store]: treesize reduction 1016, result has 3.9 percent of original size [2022-11-19 07:07:33,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 52 case distinctions, treesize of input 220 treesize of output 217 [2022-11-19 07:07:33,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 46 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-11-19 07:07:35,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:35,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:36,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:36,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:39,643 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:07:39,665 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:07:40,391 INFO L321 Elim1Store]: treesize reduction 703, result has 8.6 percent of original size [2022-11-19 07:07:40,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 30 treesize of output 71 [2022-11-19 07:07:41,226 INFO L321 Elim1Store]: treesize reduction 1016, result has 3.9 percent of original size [2022-11-19 07:07:41,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 52 case distinctions, treesize of input 220 treesize of output 217 [2022-11-19 07:07:42,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:42,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:43,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:43,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:46,608 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:07:46,642 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:07:48,798 INFO L321 Elim1Store]: treesize reduction 703, result has 8.6 percent of original size [2022-11-19 07:07:48,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 30 treesize of output 71 [2022-11-19 07:07:49,482 INFO L321 Elim1Store]: treesize reduction 1016, result has 3.9 percent of original size [2022-11-19 07:07:49,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 52 case distinctions, treesize of input 220 treesize of output 217 [2022-11-19 07:07:50,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:50,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:51,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:51,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:54,379 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:07:55,107 INFO L321 Elim1Store]: treesize reduction 703, result has 8.6 percent of original size [2022-11-19 07:07:55,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 30 treesize of output 71 [2022-11-19 07:07:55,913 INFO L321 Elim1Store]: treesize reduction 1016, result has 3.9 percent of original size [2022-11-19 07:07:55,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 52 case distinctions, treesize of input 220 treesize of output 217 [2022-11-19 07:07:56,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:57,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:57,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:07:58,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:08:01,095 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:08:01,118 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:08:08,182 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 1968 for LOIs [2022-11-19 07:08:18,333 INFO L197 IcfgInterpreter]: Interpreting procedure kzalloc with input of size 556 for LOIs [2022-11-19 07:08:24,737 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 447 for LOIs [2022-11-19 07:08:26,212 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:08:53,604 WARN L233 SmtUtils]: Spent 26.83s on a formula simplification that was a NOOP. DAG size: 1855 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:09:51,685 WARN L233 SmtUtils]: Spent 57.38s on a formula simplification. DAG size of input: 1968 DAG size of output: 1922 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:10:50,368 WARN L233 SmtUtils]: Spent 57.68s on a formula simplification. DAG size of input: 1976 DAG size of output: 1930 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:11:49,285 WARN L233 SmtUtils]: Spent 57.88s on a formula simplification. DAG size of input: 1982 DAG size of output: 1936 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:11:58,106 WARN L233 SmtUtils]: Spent 7.31s on a formula simplification. DAG size of input: 542 DAG size of output: 382 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:12:05,376 WARN L233 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 432 DAG size of output: 397 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:12:22,125 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 422 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:12:37,966 WARN L233 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 599 DAG size of output: 527 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:12:46,661 WARN L233 SmtUtils]: Spent 8.01s on a formula simplification. DAG size of input: 556 DAG size of output: 449 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:12:57,983 WARN L233 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 583 DAG size of output: 477 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:13:16,760 WARN L233 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 591 DAG size of output: 516 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:13:24,718 WARN L233 SmtUtils]: Spent 7.14s on a formula simplification. DAG size of input: 595 DAG size of output: 520 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:13:32,767 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 603 DAG size of output: 524 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:13:40,841 WARN L233 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 607 DAG size of output: 528 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:13:41,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2046598542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:13:41,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:13:41,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [7, 6, 7] total 48 [2022-11-19 07:13:41,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153663641] [2022-11-19 07:13:41,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:13:41,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-19 07:13:41,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:13:41,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-19 07:13:41,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=2031, Unknown=1, NotChecked=0, Total=2256 [2022-11-19 07:13:41,808 INFO L87 Difference]: Start difference. First operand 534 states and 739 transitions. Second operand has 33 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 24 states have internal predecessors, (45), 6 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-19 07:14:52,470 WARN L233 SmtUtils]: Spent 1.16m on a formula simplification. DAG size of input: 3283 DAG size of output: 1893 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:16:04,755 WARN L233 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 3291 DAG size of output: 1901 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:17:20,584 WARN L233 SmtUtils]: Spent 1.24m on a formula simplification. DAG size of input: 3297 DAG size of output: 1907 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:17:49,667 WARN L233 SmtUtils]: Spent 27.91s on a formula simplification that was a NOOP. DAG size: 1859 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:18:05,990 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 428 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:18:13,267 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 418 DAG size of output: 394 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:18:23,616 WARN L233 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 430 DAG size of output: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:19:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:07,381 INFO L93 Difference]: Finished difference Result 1148 states and 1594 transitions. [2022-11-19 07:19:07,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-19 07:19:07,382 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 24 states have internal predecessors, (45), 6 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 85 [2022-11-19 07:19:07,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:07,387 INFO L225 Difference]: With dead ends: 1148 [2022-11-19 07:19:07,387 INFO L226 Difference]: Without dead ends: 622 [2022-11-19 07:19:07,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 213 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 592.1s TimeCoverageRelationStatistics Valid=348, Invalid=3433, Unknown=1, NotChecked=0, Total=3782 [2022-11-19 07:19:07,390 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 86 mSDsluCounter, 5130 mSDsCounter, 0 mSdLazyCounter, 2921 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5477 SdHoareTripleChecker+Invalid, 3804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 845 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:07,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5477 Invalid, 3804 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 2921 Invalid, 0 Unknown, 845 Unchecked, 48.8s Time] [2022-11-19 07:19:07,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-19 07:19:07,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 587. [2022-11-19 07:19:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 423 states have (on average 1.3593380614657211) internal successors, (575), 430 states have internal predecessors, (575), 118 states have call successors, (118), 45 states have call predecessors, (118), 45 states have return successors, (120), 114 states have call predecessors, (120), 115 states have call successors, (120) [2022-11-19 07:19:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 813 transitions. [2022-11-19 07:19:07,575 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 813 transitions. Word has length 85 [2022-11-19 07:19:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:07,575 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 813 transitions. [2022-11-19 07:19:07,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 24 states have internal predecessors, (45), 6 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-19 07:19:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 813 transitions. [2022-11-19 07:19:07,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-19 07:19:07,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:07,578 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:07,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:19:07,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:07,787 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:07,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:07,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1271187773, now seen corresponding path program 1 times [2022-11-19 07:19:07,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:07,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997794573] [2022-11-19 07:19:07,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:07,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:08,894 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-19 07:19:08,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:08,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997794573] [2022-11-19 07:19:08,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997794573] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:19:08,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503128506] [2022-11-19 07:19:08,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:08,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:08,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:19:08,896 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:19:08,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769fdec4-1cc7-4988-9be5-02eda31e8f3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:19:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:09,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 2359 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-19 07:19:09,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:09,938 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:19:09,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:19:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-19 07:19:10,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503128506] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:19:10,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1811740800] [2022-11-19 07:19:10,353 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-11-19 07:19:10,353 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:19:10,353 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:19:10,354 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:19:10,354 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:19:13,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:19:13,867 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 6 [2022-11-19 07:19:13,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:19:15,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:16,172 INFO L217 Elim1Store]: Index analysis took 314 ms [2022-11-19 07:19:16,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 302 select indices, 302 select index equivalence classes, 4031 disjoint index pairs (out of 45451 index pairs), introduced 302 new quantified variables, introduced 0 case distinctions, treesize of input 2291 treesize of output 907 [2022-11-19 07:19:20,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,470 INFO L217 Elim1Store]: Index analysis took 256 ms [2022-11-19 07:19:20,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 302 select indices, 302 select index equivalence classes, 4031 disjoint index pairs (out of 45451 index pairs), introduced 302 new quantified variables, introduced 0 case distinctions, treesize of input 2291 treesize of output 907 [2022-11-19 07:19:25,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:19:25,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:19:25,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:19:27,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:19:27,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:19:27,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:19:29,757 INFO L321 Elim1Store]: treesize reduction 1016, result has 3.9 percent of original size [2022-11-19 07:19:29,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 52 case distinctions, treesize of input 220 treesize of output 217 [2022-11-19 07:19:30,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 46 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-11-19 07:19:31,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:31,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:32,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:32,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:37,620 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:19:37,629 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:19:37,640 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:19:38,368 INFO L321 Elim1Store]: treesize reduction 1016, result has 3.9 percent of original size [2022-11-19 07:19:38,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 52 case distinctions, treesize of input 220 treesize of output 217 [2022-11-19 07:19:38,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 46 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-11-19 07:19:39,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:39,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:40,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:40,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:45,760 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:19:45,769 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:19:45,771 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:19:47,924 INFO L321 Elim1Store]: treesize reduction 703, result has 8.6 percent of original size [2022-11-19 07:19:47,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 30 treesize of output 71 [2022-11-19 07:19:48,654 INFO L321 Elim1Store]: treesize reduction 1016, result has 3.9 percent of original size [2022-11-19 07:19:48,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 52 case distinctions, treesize of input 220 treesize of output 217 [2022-11-19 07:19:49,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:49,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:50,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:50,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:57,676 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:19:57,693 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:19:57,698 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:19:58,444 INFO L321 Elim1Store]: treesize reduction 1016, result has 3.9 percent of original size [2022-11-19 07:19:58,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 52 case distinctions, treesize of input 220 treesize of output 217 [2022-11-19 07:19:58,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 46 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-11-19 07:19:59,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:19:59,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:20:01,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:20:01,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2022-11-19 07:20:08,097 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:20:08,103 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:20:08,110 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:20:15,219 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 1968 for LOIs