./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/running_example.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/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_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/running_example.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/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 32bit --witnessprinter.graph.data.programhash 318c7aa22aeecc0174739978e9fb15d261281003454726c8705d95a97106063f --- 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 08:19:33,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:19:33,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:19:33,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:19:33,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:19:34,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:19:34,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:19:34,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:19:34,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:19:34,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:19:34,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:19:34,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:19:34,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:19:34,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:19:34,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:19:34,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:19:34,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:19:34,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:19:34,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:19:34,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:19:34,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:19:34,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:19:34,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:19:34,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:19:34,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:19:34,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:19:34,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:19:34,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:19:34,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:19:34,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:19:34,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:19:34,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:19:34,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:19:34,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:19:34,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:19:34,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:19:34,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:19:34,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:19:34,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:19:34,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:19:34,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:19:34,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:19:34,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:19:34,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:19:34,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:19:34,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:19:34,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:19:34,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:19:34,105 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:19:34,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:19:34,105 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:19:34,106 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:19:34,106 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:19:34,106 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:19:34,106 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:19:34,107 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:19:34,107 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:19:34,107 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:19:34,107 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:19:34,107 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:19:34,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:19:34,108 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:19:34,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:19:34,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:19:34,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:19:34,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:19:34,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:19:34,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:19:34,110 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:19:34,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:19:34,114 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:19:34,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:19:34,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:19:34,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:19:34,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:34,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:19:34,115 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:19:34,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:19:34,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:19:34,116 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:19:34,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:19:34,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:19:34,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:19:34,117 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_d7dcd93f-8f61-463f-874b-d5de34667fc4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318c7aa22aeecc0174739978e9fb15d261281003454726c8705d95a97106063f [2022-11-19 08:19:34,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:19:34,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:19:34,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:19:34,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:19:34,397 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:19:34,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/heap-data/running_example.i [2022-11-19 08:19:34,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/data/5e7d0f37f/114956db91434bd4a1f7f19dad60e405/FLAG40c6dcacf [2022-11-19 08:19:34,950 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:19:34,951 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/sv-benchmarks/c/heap-data/running_example.i [2022-11-19 08:19:34,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/data/5e7d0f37f/114956db91434bd4a1f7f19dad60e405/FLAG40c6dcacf [2022-11-19 08:19:35,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/data/5e7d0f37f/114956db91434bd4a1f7f19dad60e405 [2022-11-19 08:19:35,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:19:35,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:19:35,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:35,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:19:35,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:19:35,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c4ea50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35, skipping insertion in model container [2022-11-19 08:19:35,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:19:35,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:19:35,633 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_d7dcd93f-8f61-463f-874b-d5de34667fc4/sv-benchmarks/c/heap-data/running_example.i[23610,23623] [2022-11-19 08:19:35,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:35,648 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:19:35,688 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_d7dcd93f-8f61-463f-874b-d5de34667fc4/sv-benchmarks/c/heap-data/running_example.i[23610,23623] [2022-11-19 08:19:35,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:35,717 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:19:35,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35 WrapperNode [2022-11-19 08:19:35,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:35,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:35,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:19:35,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:19:35,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,781 INFO L138 Inliner]: procedures = 121, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2022-11-19 08:19:35,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:35,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:19:35,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:19:35,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:19:35,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,823 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:19:35,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:19:35,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:19:35,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:19:35,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:35,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:35,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:19:35,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:19:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:19:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:19:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:19:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:19:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:19:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:19:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:19:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:19:35,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:19:36,018 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:19:36,021 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:19:36,197 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:19:36,270 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:19:36,270 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 08:19:36,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:36 BoogieIcfgContainer [2022-11-19 08:19:36,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:19:36,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:19:36,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:19:36,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:19:36,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:19:35" (1/3) ... [2022-11-19 08:19:36,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354ad99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:36, skipping insertion in model container [2022-11-19 08:19:36,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (2/3) ... [2022-11-19 08:19:36,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354ad99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:36, skipping insertion in model container [2022-11-19 08:19:36,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:36" (3/3) ... [2022-11-19 08:19:36,283 INFO L112 eAbstractionObserver]: Analyzing ICFG running_example.i [2022-11-19 08:19:36,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:19:36,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:19:36,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:19:36,424 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;@2c8622f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:19:36,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:19:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:36,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 08:19:36,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:36,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 08:19:36,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:36,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:36,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1470856896, now seen corresponding path program 1 times [2022-11-19 08:19:36,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:36,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141380072] [2022-11-19 08:19:36,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:36,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:36,694 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 08:19:36,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:36,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141380072] [2022-11-19 08:19:36,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141380072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:36,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:36,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:19:36,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632825520] [2022-11-19 08:19:36,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:36,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:19:36,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:36,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:19:36,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:19:36,738 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:36,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:36,769 INFO L93 Difference]: Finished difference Result 18 states and 26 transitions. [2022-11-19 08:19:36,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:19:36,772 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 08:19:36,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:36,780 INFO L225 Difference]: With dead ends: 18 [2022-11-19 08:19:36,781 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 08:19:36,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:19:36,787 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:36,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:19:36,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 08:19:36,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-19 08:19:36,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:36,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-11-19 08:19:36,822 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 6 [2022-11-19 08:19:36,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:36,822 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-19 08:19:36,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:36,823 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2022-11-19 08:19:36,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:19:36,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:36,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:36,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:19:36,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:36,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:36,826 INFO L85 PathProgramCache]: Analyzing trace with hash 237321750, now seen corresponding path program 1 times [2022-11-19 08:19:36,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:36,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163174578] [2022-11-19 08:19:36,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:36,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:37,259 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 08:19:37,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:37,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163174578] [2022-11-19 08:19:37,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163174578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:37,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:37,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:19:37,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875842089] [2022-11-19 08:19:37,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:37,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:19:37,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:37,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:19:37,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:19:37,264 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:37,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:37,408 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2022-11-19 08:19:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:19:37,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:19:37,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:37,409 INFO L225 Difference]: With dead ends: 22 [2022-11-19 08:19:37,410 INFO L226 Difference]: Without dead ends: 20 [2022-11-19 08:19:37,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:19:37,412 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:37,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 29 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:19:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-19 08:19:37,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-19 08:19:37,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2022-11-19 08:19:37,419 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 8 [2022-11-19 08:19:37,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:37,420 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-11-19 08:19:37,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-11-19 08:19:37,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:19:37,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:37,421 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:37,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:19:37,422 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:37,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:37,423 INFO L85 PathProgramCache]: Analyzing trace with hash 540596448, now seen corresponding path program 1 times [2022-11-19 08:19:37,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:37,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627558757] [2022-11-19 08:19:37,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:37,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:38,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:38,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627558757] [2022-11-19 08:19:38,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627558757] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:19:38,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352483512] [2022-11-19 08:19:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:38,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:19:38,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:38,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:19:38,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:19:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:38,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-19 08:19:38,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:19:38,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:38,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-19 08:19:38,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:38,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-19 08:19:38,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 85 [2022-11-19 08:19:38,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 76 [2022-11-19 08:19:38,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2022-11-19 08:19:38,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-19 08:19:38,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:19:38,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:19:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:38,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:19:38,796 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:19:38,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 104 [2022-11-19 08:19:38,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 78 [2022-11-19 08:19:38,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:38,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352483512] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:19:38,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1258068798] [2022-11-19 08:19:38,981 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-19 08:19:38,981 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:19:38,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:19:38,991 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:19:38,993 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:19:39,096 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:19:39,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 08:19:39,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,138 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:19:39,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 41 [2022-11-19 08:19:39,187 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:19:39,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:19:39,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:19:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:19:39,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 08:19:39,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-19 08:19:39,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 08:19:39,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 08:19:39,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 08:19:39,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:39,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-19 08:19:39,692 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:19:40,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1258068798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:40,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:19:40,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4, 4] total 13 [2022-11-19 08:19:40,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758271907] [2022-11-19 08:19:40,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:40,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:19:40,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:40,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:19:40,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:19:40,749 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:40,940 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2022-11-19 08:19:40,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:19:40,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:19:40,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:40,942 INFO L225 Difference]: With dead ends: 31 [2022-11-19 08:19:40,942 INFO L226 Difference]: Without dead ends: 22 [2022-11-19 08:19:40,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:19:40,944 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:40,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:19:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-19 08:19:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2022-11-19 08:19:40,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:40,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-11-19 08:19:40,953 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 11 [2022-11-19 08:19:40,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:40,954 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-19 08:19:40,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-11-19 08:19:40,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:19:40,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:40,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:40,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:19:41,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:19:41,162 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:41,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:41,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1081792080, now seen corresponding path program 1 times [2022-11-19 08:19:41,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:41,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153934241] [2022-11-19 08:19:41,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:41,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:41,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:41,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153934241] [2022-11-19 08:19:41,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153934241] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:19:41,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469903738] [2022-11-19 08:19:41,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:41,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:19:41,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:41,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:19:41,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:19:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:41,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-19 08:19:41,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:19:41,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:19:41,767 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 11 treesize of output 7 [2022-11-19 08:19:41,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:41,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-11-19 08:19:41,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:41,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-19 08:19:41,864 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 08:19:41,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 08:19:41,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2022-11-19 08:19:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:41,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:19:42,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:42,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469903738] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:19:42,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1812138767] [2022-11-19 08:19:42,264 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-19 08:19:42,264 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:19:42,265 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:19:42,265 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:19:42,265 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:19:42,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:19:42,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:19:42,322 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:19:42,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 08:19:42,366 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:19:42,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:19:42,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 37 [2022-11-19 08:19:42,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:42,491 INFO L321 Elim1Store]: treesize reduction 38, result has 48.6 percent of original size [2022-11-19 08:19:42,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 68 [2022-11-19 08:19:42,544 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-19 08:19:42,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 08:19:42,612 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 08:19:42,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-19 08:19:42,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-19 08:19:42,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-19 08:19:42,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:42,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:42,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:42,982 INFO L321 Elim1Store]: treesize reduction 169, result has 17.6 percent of original size [2022-11-19 08:19:42,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 322 treesize of output 308 [2022-11-19 08:19:43,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:43,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:43,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:43,180 INFO L321 Elim1Store]: treesize reduction 137, result has 33.2 percent of original size [2022-11-19 08:19:43,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 304 treesize of output 322 [2022-11-19 08:19:43,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:43,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:43,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:43,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:43,280 INFO L321 Elim1Store]: treesize reduction 69, result has 19.8 percent of original size [2022-11-19 08:19:43,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 265 treesize of output 252 [2022-11-19 08:19:43,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:43,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:43,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:43,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:43,393 INFO L321 Elim1Store]: treesize reduction 69, result has 19.8 percent of original size [2022-11-19 08:19:43,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 274 treesize of output 265 [2022-11-19 08:19:43,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:43,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:43,499 INFO L321 Elim1Store]: treesize reduction 92, result has 24.6 percent of original size [2022-11-19 08:19:43,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 266 treesize of output 270 [2022-11-19 08:19:43,650 INFO L321 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2022-11-19 08:19:43,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 249 treesize of output 269 [2022-11-19 08:19:43,748 INFO L321 Elim1Store]: treesize reduction 78, result has 20.4 percent of original size [2022-11-19 08:19:43,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 242 treesize of output 251 [2022-11-19 08:19:45,585 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 6 treesize of output 5 [2022-11-19 08:19:45,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:45,640 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:19:45,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 23 [2022-11-19 08:19:45,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:45,671 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:19:45,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 19 [2022-11-19 08:19:45,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:45,714 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:19:45,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 30 [2022-11-19 08:19:45,735 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 08:19:45,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:45,872 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:19:45,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 23 [2022-11-19 08:19:45,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:45,902 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:19:45,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 19 [2022-11-19 08:19:45,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:45,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:19:45,948 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:19:45,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 30 [2022-11-19 08:19:45,968 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 08:19:45,976 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 6 treesize of output 5 [2022-11-19 08:19:45,996 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:19:46,359 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '348#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~tail~0#1.offset|) (<= |#NULL.offset| 0) (or (< (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 10) (not (<= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 20))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (not (= 0 |ULTIMATE.start_main_~p~0#1.base|)) (<= |ULTIMATE.start_main_~tail~0#1.offset| 0) (= |ULTIMATE.start_main_~list~0#1.base| |ULTIMATE.start_main_~p~0#1.base|))' at error location [2022-11-19 08:19:46,359 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:19:46,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:19:46,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-19 08:19:46,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575093248] [2022-11-19 08:19:46,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:19:46,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:19:46,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:46,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:19:46,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:19:46,361 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:46,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:46,628 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2022-11-19 08:19:46,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:19:46,629 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:19:46,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:46,630 INFO L225 Difference]: With dead ends: 44 [2022-11-19 08:19:46,630 INFO L226 Difference]: Without dead ends: 42 [2022-11-19 08:19:46,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:19:46,631 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 55 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:46,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 71 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 19 Unchecked, 0.1s Time] [2022-11-19 08:19:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-19 08:19:46,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2022-11-19 08:19:46,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 29 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:46,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2022-11-19 08:19:46,640 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 12 [2022-11-19 08:19:46,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:46,640 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2022-11-19 08:19:46,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:46,641 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-11-19 08:19:46,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:19:46,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:46,641 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:46,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:19:46,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:19:46,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:46,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:46,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1762222490, now seen corresponding path program 1 times [2022-11-19 08:19:46,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:46,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155431470] [2022-11-19 08:19:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:46,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:47,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:47,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155431470] [2022-11-19 08:19:47,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155431470] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:19:47,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615238195] [2022-11-19 08:19:47,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:47,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:19:47,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:47,760 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:19:47,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:19:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:47,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-19 08:19:47,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:19:47,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:19:47,892 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 11 treesize of output 7 [2022-11-19 08:19:47,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2022-11-19 08:19:47,974 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2022-11-19 08:19:47,990 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:19:47,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 60 [2022-11-19 08:19:47,998 INFO L321 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2022-11-19 08:19:47,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 08:19:48,003 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2022-11-19 08:19:48,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-19 08:19:48,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-11-19 08:19:48,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-19 08:19:48,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-11-19 08:19:48,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 24 [2022-11-19 08:19:48,211 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 15 treesize of output 7 [2022-11-19 08:19:48,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2022-11-19 08:19:48,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:48,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:19:48,519 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) (.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (and (forall ((v_ArrVal_253 (Array Int Int))) (<= 10 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) .cse0) .cse1))) (forall ((v_ArrVal_256 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) .cse0) .cse1) 20))))) is different from false [2022-11-19 08:19:48,563 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:19:48,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 130 [2022-11-19 08:19:48,573 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:19:48,573 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 114 [2022-11-19 08:19:48,589 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:19:48,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 294 treesize of output 215 [2022-11-19 08:19:48,602 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:19:48,602 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 168 [2022-11-19 08:19:48,621 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:19:48,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 312 treesize of output 293 [2022-11-19 08:19:48,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 261 [2022-11-19 08:19:48,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 245 [2022-11-19 08:19:56,371 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse39 (select |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base|)) (.cse40 (+ |c_ULTIMATE.start_main_~tail~0#1.offset| 4)) (.cse54 (not (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 0)))) (let ((.cse42 (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse150 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) v_arrayElimCell_97))) (or (<= (select .cse150 0) 20) (<= (select .cse150 v_arrayElimCell_96) 20)))) .cse54)) (.cse55 (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse149 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) v_arrayElimCell_97))) (or (<= 10 (select .cse149 v_arrayElimCell_96)) (<= 10 (select .cse149 0))))) .cse54)) (.cse0 (or (forall ((v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse148 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (or (<= 10 (select (select .cse148 v_arrayElimCell_93) v_arrayElimCell_96)) (<= 10 (select (select .cse148 v_arrayElimCell_97) v_arrayElimCell_96))))) .cse54)) (.cse1 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int))) (let ((.cse147 (select v_arrayElimArr_11 0))) (or (<= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) v_arrayElimCell_93) v_arrayElimCell_95) 20) (< .cse147 10) (< 20 .cse147)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse2 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse144 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse146 (select .cse144 v_arrayElimCell_97)) (.cse145 (select v_arrayElimArr_11 0))) (or (<= (select (select .cse144 v_arrayElimCell_93) v_arrayElimCell_95) 20) (< .cse145 10) (<= (select .cse146 v_arrayElimCell_95) 20) (<= (select .cse146 v_arrayElimCell_96) 20) (< 20 .cse145))))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse4 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse142 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse141 (select .cse142 v_arrayElimCell_97)) (.cse143 (select v_arrayElimArr_11 0))) (or (<= 10 (select .cse141 v_arrayElimCell_95)) (<= 10 (select (select .cse142 v_arrayElimCell_93) v_arrayElimCell_95)) (<= 10 (select .cse141 v_arrayElimCell_96)) (< .cse143 10) (< 20 .cse143))))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse6 (or (forall ((v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_arrayElimCell_95 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse139 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse140 (select .cse139 v_arrayElimCell_97))) (or (<= 10 (select (select .cse139 v_arrayElimCell_93) v_arrayElimCell_96)) (<= 10 (select .cse140 v_arrayElimCell_96)) (<= 10 (select .cse140 v_arrayElimCell_95)))))) .cse54)) (.cse7 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int)) (let ((.cse138 (select v_arrayElimArr_11 0))) (or (forall ((v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int))) (let ((.cse137 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse136 (select .cse137 v_arrayElimCell_93))) (or (<= (select .cse136 v_arrayElimCell_95) 20) (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_97 Int)) (or (<= (select .cse136 v_arrayElimCell_96) 20) (<= (select (select .cse137 v_arrayElimCell_97) v_arrayElimCell_96) 20))))))) (< .cse138 10) (< 20 .cse138))))))) (.cse10 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int)) (let ((.cse135 (select v_arrayElimArr_11 0))) (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse134 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse132 (select .cse134 v_arrayElimCell_97)) (.cse133 (select .cse134 v_arrayElimCell_93))) (or (<= 10 (select .cse132 v_arrayElimCell_95)) (<= 10 (select .cse133 v_arrayElimCell_95)) (<= 10 (select .cse132 v_arrayElimCell_96)) (<= 10 (select .cse133 v_arrayElimCell_96)))))) (< .cse135 10) (< 20 .cse135)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0))))) (.cse14 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int)) (let ((.cse129 (select v_arrayElimArr_11 0))) (or (< .cse129 10) (forall ((v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int))) (let ((.cse131 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse130 (select .cse131 v_arrayElimCell_93))) (or (<= 10 (select .cse130 v_arrayElimCell_95)) (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_97 Int)) (or (<= 10 (select (select .cse131 v_arrayElimCell_97) v_arrayElimCell_96)) (<= 10 (select .cse130 v_arrayElimCell_96)))))))) (< 20 .cse129)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0))))) (.cse15 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse127 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253)) (.cse128 (select v_arrayElimArr_11 0))) (or (<= 10 (select (select .cse127 v_arrayElimCell_93) v_arrayElimCell_95)) (<= 10 (select (select .cse127 v_arrayElimCell_97) v_arrayElimCell_96)) (< .cse128 10) (< 20 .cse128)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse16 (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (<= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) v_arrayElimCell_97) v_arrayElimCell_96) 20)) .cse54)) (.cse20 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int)) (let ((.cse126 (select v_arrayElimArr_11 0))) (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse125 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse123 (select .cse125 v_arrayElimCell_93)) (.cse124 (select .cse125 v_arrayElimCell_97))) (or (<= (select .cse123 v_arrayElimCell_95) 20) (<= (select .cse123 v_arrayElimCell_96) 20) (<= (select .cse124 v_arrayElimCell_95) 20) (<= (select .cse124 v_arrayElimCell_96) 20))))) (< .cse126 10) (< 20 .cse126))))))) (.cse21 (or (forall ((v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse122 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (or (<= (select (select .cse122 v_arrayElimCell_93) v_arrayElimCell_96) 20) (<= (select (select .cse122 v_arrayElimCell_97) v_arrayElimCell_96) 20)))) .cse54)) (.cse24 (or (forall ((v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_arrayElimCell_95 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse120 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse121 (select .cse120 v_arrayElimCell_97))) (or (<= (select (select .cse120 v_arrayElimCell_93) v_arrayElimCell_96) 20) (<= (select .cse121 v_arrayElimCell_96) 20) (<= (select .cse121 v_arrayElimCell_95) 20))))) .cse54)) (.cse25 (or (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_95 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse119 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) v_arrayElimCell_97))) (or (<= (select .cse119 v_arrayElimCell_96) 20) (<= (select .cse119 v_arrayElimCell_95) 20)))) .cse54)) (.cse27 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse117 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256)) (.cse118 (select v_arrayElimArr_11 0))) (or (<= (select (select .cse117 v_arrayElimCell_93) v_arrayElimCell_95) 20) (< .cse118 10) (<= (select (select .cse117 v_arrayElimCell_97) v_arrayElimCell_96) 20) (< 20 .cse118)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse28 (or .cse54 (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_95 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse116 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) v_arrayElimCell_97))) (or (<= 10 (select .cse116 v_arrayElimCell_96)) (<= 10 (select .cse116 v_arrayElimCell_95))))))) (.cse29 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int))) (let ((.cse115 (select v_arrayElimArr_11 0))) (or (<= 10 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) v_arrayElimCell_93) v_arrayElimCell_95)) (< .cse115 10) (< 20 .cse115)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse33 (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (<= 10 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) v_arrayElimCell_97) v_arrayElimCell_96))) .cse54))) (let ((.cse31 (= |c_ULTIMATE.start_main_~tail~0#1.offset| |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse3 (or (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_95 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse114 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) v_arrayElimCell_97))) (or (<= (select v_ArrVal_256 v_arrayElimCell_96) 20) (<= (select .cse114 v_arrayElimCell_96) 20) (<= (select .cse114 v_arrayElimCell_95) 20)))) .cse54)) (.cse5 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int))) (let ((.cse113 (select v_arrayElimArr_11 0))) (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse112 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse110 (select .cse112 v_arrayElimCell_92)) (.cse111 (select .cse112 v_arrayElimCell_97))) (or (<= (select .cse110 v_arrayElimCell_96) 20) (<= (select .cse110 v_arrayElimCell_95) 20) (<= (select .cse111 v_arrayElimCell_95) 20) (<= (select .cse111 v_arrayElimCell_96) 20))))) (< .cse113 10) (< 20 .cse113)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0))))) (.cse8 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int))) (let ((.cse109 (select v_arrayElimArr_11 0))) (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse108 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse106 (select .cse108 v_arrayElimCell_97)) (.cse107 (select .cse108 v_arrayElimCell_92))) (or (<= 10 (select .cse106 v_arrayElimCell_95)) (<= 10 (select .cse106 v_arrayElimCell_96)) (<= 10 (select .cse107 v_arrayElimCell_96)) (<= 10 (select .cse107 v_arrayElimCell_95)))))) (< .cse109 10) (< 20 .cse109))))))) (.cse9 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int))) (let ((.cse105 (select v_arrayElimArr_11 0))) (or (< .cse105 10) (<= 10 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) v_arrayElimCell_92) v_arrayElimCell_95)) (< 20 .cse105)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse13 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int))) (let ((.cse102 (select v_arrayElimArr_11 0))) (or (< .cse102 10) (forall ((v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int))) (let ((.cse104 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse103 (select .cse104 v_arrayElimCell_92))) (or (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_97 Int)) (or (<= (select .cse103 v_arrayElimCell_96) 20) (<= (select (select .cse104 v_arrayElimCell_97) v_arrayElimCell_96) 20))) (<= (select .cse103 v_arrayElimCell_95) 20))))) (< 20 .cse102))))))) (.cse17 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse100 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253)) (.cse101 (select v_arrayElimArr_11 0))) (or (<= 10 (select (select .cse100 v_arrayElimCell_97) v_arrayElimCell_96)) (< .cse101 10) (<= 10 (select (select .cse100 v_arrayElimCell_92) v_arrayElimCell_95)) (< 20 .cse101)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse18 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse99 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256)) (.cse98 (select v_arrayElimArr_11 0))) (or (< .cse98 10) (<= (select (select .cse99 v_arrayElimCell_92) v_arrayElimCell_95) 20) (<= (select (select .cse99 v_arrayElimCell_97) v_arrayElimCell_96) 20) (< 20 .cse98)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse19 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse97 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse95 (select .cse97 v_arrayElimCell_97)) (.cse96 (select v_arrayElimArr_11 0))) (or (<= 10 (select .cse95 v_arrayElimCell_95)) (<= 10 (select .cse95 v_arrayElimCell_96)) (< .cse96 10) (<= 10 (select (select .cse97 v_arrayElimCell_92) v_arrayElimCell_95)) (< 20 .cse96))))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse22 (or (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_95 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse94 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) v_arrayElimCell_97))) (or (<= 10 (select .cse94 v_arrayElimCell_96)) (<= 10 (select v_ArrVal_253 v_arrayElimCell_96)) (<= 10 (select .cse94 v_arrayElimCell_95))))) .cse54)) (.cse23 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int))) (let ((.cse93 (select v_arrayElimArr_11 0))) (or (< .cse93 10) (<= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) v_arrayElimCell_92) v_arrayElimCell_95) 20) (< 20 .cse93)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse32 (and .cse0 .cse1 .cse2 .cse4 .cse6 .cse7 .cse10 .cse14 .cse15 .cse16 .cse20 .cse21 .cse24 .cse25 .cse27 .cse28 .cse29 .cse33)) (.cse26 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse91 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse92 (select .cse91 v_arrayElimCell_97)) (.cse90 (select v_arrayElimArr_11 0))) (or (< .cse90 10) (<= (select (select .cse91 v_arrayElimCell_92) v_arrayElimCell_95) 20) (<= (select .cse92 v_arrayElimCell_95) 20) (<= (select .cse92 v_arrayElimCell_96) 20) (< 20 .cse90))))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92)))) (.cse30 (forall ((v_arrayElimCell_95 Int) (v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int))) (let ((.cse87 (select v_arrayElimArr_11 0))) (or (< .cse87 10) (forall ((v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int))) (let ((.cse89 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse88 (select .cse89 v_arrayElimCell_92))) (or (<= 10 (select .cse88 v_arrayElimCell_95)) (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_97 Int)) (or (<= 10 (select (select .cse89 v_arrayElimCell_97) v_arrayElimCell_96)) (<= 10 (select .cse88 v_arrayElimCell_96)))))))) (< 20 .cse87)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0))))) (.cse11 (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (or (<= (select v_ArrVal_256 v_arrayElimCell_96) 20) (<= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) v_arrayElimCell_97) v_arrayElimCell_96) 20))) .cse54)) (.cse12 (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (or (<= 10 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) v_arrayElimCell_97) v_arrayElimCell_96)) (<= 10 (select v_ArrVal_253 v_arrayElimCell_96)))) .cse54)) (.cse34 (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~tail~0#1.base|)) (.cse41 (and (forall ((v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int))) (let ((.cse57 (select v_arrayElimArr_11 0))) (or (< .cse57 10) (<= 10 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) v_arrayElimCell_93) 0)) (< 20 .cse57)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92))) .cse0 (forall ((v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int)) (let ((.cse58 (select v_arrayElimArr_11 0))) (or (< .cse58 10) (forall ((v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int))) (let ((.cse60 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse59 (select .cse60 v_arrayElimCell_93))) (or (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_97 Int)) (or (<= (select .cse59 v_arrayElimCell_96) 20) (<= (select (select .cse60 v_arrayElimCell_97) v_arrayElimCell_96) 20))) (<= (select .cse59 0) 20))))) (< 20 .cse58)))))) (forall ((v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int)) (let ((.cse64 (select v_arrayElimArr_11 0))) (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse63 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse61 (select .cse63 v_arrayElimCell_93)) (.cse62 (select .cse63 v_arrayElimCell_97))) (or (<= (select .cse61 0) 20) (<= (select .cse61 v_arrayElimCell_96) 20) (<= (select .cse62 v_arrayElimCell_96) 20) (<= (select .cse62 0) 20))))) (< .cse64 10) (< 20 .cse64)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)))) (forall ((v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse67 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse65 (select .cse67 v_arrayElimCell_97)) (.cse66 (select v_arrayElimArr_11 0))) (or (<= 10 (select .cse65 v_arrayElimCell_96)) (< .cse66 10) (<= 10 (select (select .cse67 v_arrayElimCell_93) 0)) (<= 10 (select .cse65 0)) (< 20 .cse66))))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92))) (or (forall ((v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse68 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse69 (select .cse68 v_arrayElimCell_97))) (or (<= (select (select .cse68 v_arrayElimCell_93) v_arrayElimCell_96) 20) (<= (select .cse69 0) 20) (<= (select .cse69 v_arrayElimCell_96) 20))))) .cse54) (forall ((v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int)) (let ((.cse70 (select v_arrayElimArr_11 0))) (or (< .cse70 10) (forall ((v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int))) (let ((.cse71 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse72 (select .cse71 v_arrayElimCell_93))) (or (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_97 Int)) (or (<= 10 (select (select .cse71 v_arrayElimCell_97) v_arrayElimCell_96)) (<= 10 (select .cse72 v_arrayElimCell_96)))) (<= 10 (select .cse72 0)))))) (< 20 .cse70)))))) .cse42 (or .cse54 (forall ((v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse73 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse74 (select .cse73 v_arrayElimCell_97))) (or (<= 10 (select (select .cse73 v_arrayElimCell_93) v_arrayElimCell_96)) (<= 10 (select .cse74 v_arrayElimCell_96)) (<= 10 (select .cse74 0))))))) (forall ((v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int)) (let ((.cse78 (select v_arrayElimArr_11 0))) (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse77 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse76 (select .cse77 v_arrayElimCell_93)) (.cse75 (select .cse77 v_arrayElimCell_97))) (or (<= 10 (select .cse75 v_arrayElimCell_96)) (<= 10 (select .cse76 0)) (<= 10 (select .cse76 v_arrayElimCell_96)) (<= 10 (select .cse75 0)))))) (< .cse78 10) (< 20 .cse78)))))) (forall ((v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse79 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253)) (.cse80 (select v_arrayElimArr_11 0))) (or (<= 10 (select (select .cse79 v_arrayElimCell_97) v_arrayElimCell_96)) (< .cse80 10) (<= 10 (select (select .cse79 v_arrayElimCell_93) 0)) (< 20 .cse80)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92))) .cse16 (forall ((v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int))) (let ((.cse81 (select v_arrayElimArr_11 0))) (or (<= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) v_arrayElimCell_93) 0) 20) (< .cse81 10) (< 20 .cse81)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92))) .cse21 (forall ((v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse82 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse84 (select .cse82 v_arrayElimCell_97)) (.cse83 (select v_arrayElimArr_11 0))) (or (<= (select (select .cse82 v_arrayElimCell_93) 0) 20) (< .cse83 10) (<= (select .cse84 v_arrayElimCell_96) 20) (<= (select .cse84 0) 20) (< 20 .cse83))))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92))) (forall ((v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimCell_93 Int) (v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse85 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256)) (.cse86 (select v_arrayElimArr_11 0))) (or (<= (select (select .cse85 v_arrayElimCell_93) 0) 20) (< .cse86 10) (<= (select (select .cse85 v_arrayElimCell_97) v_arrayElimCell_96) 20) (< 20 .cse86)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_92))) .cse33 .cse55))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 (or .cse31 .cse32) .cse33) .cse34) (forall ((v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int))) (let ((.cse35 (select v_arrayElimArr_11 0))) (or (< .cse35 10) (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse38 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse36 (select .cse38 v_arrayElimCell_92)) (.cse37 (select .cse38 v_arrayElimCell_97))) (or (<= 10 (select .cse36 0)) (<= 10 (select .cse37 v_arrayElimCell_96)) (<= 10 (select .cse36 v_arrayElimCell_96)) (<= 10 (select .cse37 0)))))) (< 20 .cse35)))))) (or .cse31 .cse41) .cse42 (forall ((v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int))) (let ((.cse43 (select v_arrayElimArr_11 0))) (or (< .cse43 10) (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse46 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse44 (select .cse46 v_arrayElimCell_92)) (.cse45 (select .cse46 v_arrayElimCell_97))) (or (<= (select .cse44 v_arrayElimCell_96) 20) (<= (select .cse45 v_arrayElimCell_96) 20) (<= (select .cse44 0) 20) (<= (select .cse45 0) 20))))) (< 20 .cse43)))))) (or .cse31 (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 (or .cse34 .cse32) .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse33)) .cse11 .cse12 .cse16 (forall ((v_arrayElimCell_92 Int)) (or (not (= (select |c_#valid| v_arrayElimCell_92) 0)) (forall ((v_arrayElimArr_11 (Array Int Int))) (let ((.cse47 (select v_arrayElimArr_11 0))) (or (< .cse47 10) (forall ((v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int))) (let ((.cse49 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253))) (let ((.cse48 (select .cse49 v_arrayElimCell_92))) (or (<= 10 (select .cse48 0)) (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_97 Int)) (or (<= 10 (select (select .cse49 v_arrayElimCell_97) v_arrayElimCell_96)) (<= 10 (select .cse48 v_arrayElimCell_96)))))))) (< 20 .cse47)))))) (forall ((v_arrayElimCell_92 Int)) (or (forall ((v_arrayElimArr_11 (Array Int Int))) (let ((.cse50 (select v_arrayElimArr_11 0))) (or (< .cse50 10) (forall ((v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int))) (let ((.cse52 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) v_arrayElimCell_92 v_arrayElimArr_11) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256))) (let ((.cse51 (select .cse52 v_arrayElimCell_92))) (or (forall ((v_arrayElimCell_96 Int) (v_arrayElimCell_97 Int)) (or (<= (select .cse51 v_arrayElimCell_96) 20) (<= (select (select .cse52 v_arrayElimCell_97) v_arrayElimCell_96) 20))) (<= (select .cse51 0) 20))))) (< 20 .cse50)))) (not (= (select |c_#valid| v_arrayElimCell_92) 0)))) (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_253 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse53 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_253) v_arrayElimCell_97))) (or (<= 10 (select .cse53 v_arrayElimCell_96)) (<= 10 (select .cse53 0)) (<= 10 (select v_ArrVal_253 v_arrayElimCell_96))))) .cse54) (or .cse34 .cse41) .cse33 .cse55 (or (forall ((v_arrayElimCell_96 Int) (v_ArrVal_243 Int) (v_ArrVal_256 (Array Int Int)) (v_arrayElimCell_97 Int)) (let ((.cse56 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~tail~0#1.base| (store .cse39 .cse40 v_ArrVal_243)) |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_256) v_arrayElimCell_97))) (or (<= (select v_ArrVal_256 v_arrayElimCell_96) 20) (<= (select .cse56 0) 20) (<= (select .cse56 v_arrayElimCell_96) 20)))) .cse54))))) is different from true [2022-11-19 08:20:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-19 08:20:10,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615238195] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:10,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [388553664] [2022-11-19 08:20:10,686 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 08:20:10,686 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:20:10,687 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:20:10,687 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:20:10,687 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:20:10,745 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:20:10,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 08:20:10,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:10,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:20:10,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:10,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:20:10,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:10,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:10,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:10,810 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:20:10,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 41 [2022-11-19 08:20:10,871 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:20:10,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:20:11,004 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-19 08:20:11,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 08:20:11,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:11,039 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:20:11,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 22 [2022-11-19 08:20:11,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:11,075 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:20:11,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 26 [2022-11-19 08:20:11,158 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 08:20:11,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-19 08:20:11,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 56 [2022-11-19 08:20:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:11,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:11,509 INFO L321 Elim1Store]: treesize reduction 169, result has 17.6 percent of original size [2022-11-19 08:20:11,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 322 treesize of output 308 [2022-11-19 08:20:11,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:11,618 INFO L321 Elim1Store]: treesize reduction 69, result has 19.8 percent of original size [2022-11-19 08:20:11,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 295 treesize of output 282 [2022-11-19 08:20:11,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:11,717 INFO L321 Elim1Store]: treesize reduction 69, result has 19.8 percent of original size [2022-11-19 08:20:11,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 304 treesize of output 295 [2022-11-19 08:20:11,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:11,747 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:11,817 INFO L321 Elim1Store]: treesize reduction 92, result has 24.6 percent of original size [2022-11-19 08:20:11,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 296 treesize of output 300 [2022-11-19 08:20:11,976 INFO L321 Elim1Store]: treesize reduction 124, result has 24.8 percent of original size [2022-11-19 08:20:11,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 279 treesize of output 303 [2022-11-19 08:20:12,074 INFO L321 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2022-11-19 08:20:12,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 272 treesize of output 281 [2022-11-19 08:20:12,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:12,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:12,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:12,251 INFO L321 Elim1Store]: treesize reduction 117, result has 36.8 percent of original size [2022-11-19 08:20:12,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 304 treesize of output 322 [2022-11-19 08:20:14,048 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 6 treesize of output 5 [2022-11-19 08:20:14,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:14,091 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:20:14,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 19 [2022-11-19 08:20:14,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:14,128 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:20:14,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 23 [2022-11-19 08:20:14,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:14,164 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:20:14,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 30 [2022-11-19 08:20:14,189 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 08:20:14,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 137 [2022-11-19 08:20:14,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 113 [2022-11-19 08:20:14,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 86 [2022-11-19 08:20:14,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2022-11-19 08:20:14,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2022-11-19 08:20:14,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-19 08:20:14,385 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 137 [2022-11-19 08:20:14,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 104 [2022-11-19 08:20:14,406 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 57 [2022-11-19 08:20:14,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2022-11-19 08:20:14,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2022-11-19 08:20:14,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-19 08:20:14,507 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 137 [2022-11-19 08:20:14,513 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 113 [2022-11-19 08:20:14,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 80 [2022-11-19 08:20:14,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2022-11-19 08:20:14,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-19 08:20:14,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2022-11-19 08:20:14,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:14,705 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:20:14,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 23 [2022-11-19 08:20:14,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,724 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:14,743 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:20:14,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 19 [2022-11-19 08:20:14,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:14,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:14,781 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:20:14,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 30 [2022-11-19 08:20:14,798 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 6 treesize of output 5 [2022-11-19 08:20:14,804 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 08:20:14,825 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:20:15,111 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '575#(and (<= 0 |ULTIMATE.start_main_~tail~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= |ULTIMATE.start_main_~tail~0#1.offset| 0))' at error location [2022-11-19 08:20:15,111 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:20:15,111 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:20:15,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 15 [2022-11-19 08:20:15,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928882055] [2022-11-19 08:20:15,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:20:15,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 08:20:15,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:15,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 08:20:15,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=228, Unknown=3, NotChecked=62, Total=342 [2022-11-19 08:20:15,113 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:17,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:17,749 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2022-11-19 08:20:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:20:17,750 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 08:20:17,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:17,751 INFO L225 Difference]: With dead ends: 47 [2022-11-19 08:20:17,751 INFO L226 Difference]: Without dead ends: 45 [2022-11-19 08:20:17,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=104, Invalid=453, Unknown=3, NotChecked=90, Total=650 [2022-11-19 08:20:17,752 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 31 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:17,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 119 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 66 Unchecked, 0.2s Time] [2022-11-19 08:20:17,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-19 08:20:17,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2022-11-19 08:20:17,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2022-11-19 08:20:17,764 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 15 [2022-11-19 08:20:17,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:17,764 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2022-11-19 08:20:17,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:17,765 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2022-11-19 08:20:17,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 08:20:17,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:17,766 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:17,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:17,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:17,972 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:17,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:17,972 INFO L85 PathProgramCache]: Analyzing trace with hash 928709866, now seen corresponding path program 1 times [2022-11-19 08:20:17,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:17,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588139933] [2022-11-19 08:20:17,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:17,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:18,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:18,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588139933] [2022-11-19 08:20:18,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588139933] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:20:18,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519199704] [2022-11-19 08:20:18,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:18,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:18,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:18,583 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:20:18,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:20:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:18,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 08:20:18,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:18,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2022-11-19 08:20:18,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 08:20:18,761 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 6 treesize of output 5 [2022-11-19 08:20:18,765 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 6 treesize of output 5 [2022-11-19 08:20:18,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 85 [2022-11-19 08:20:18,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 69 [2022-11-19 08:20:18,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 60 [2022-11-19 08:20:18,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-19 08:20:18,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:20:18,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:20:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:18,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:19,149 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:20:19,149 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 73 [2022-11-19 08:20:19,161 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:20:19,161 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 67 [2022-11-19 08:20:19,176 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:20:19,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 72 [2022-11-19 08:20:19,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2022-11-19 08:20:19,213 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-19 08:20:19,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2022-11-19 08:20:19,232 INFO L321 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-11-19 08:20:19,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2022-11-19 08:20:19,266 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:19,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519199704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:19,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [598131289] [2022-11-19 08:20:19,268 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-19 08:20:19,268 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:20:19,269 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:20:19,269 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:20:19,269 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:20:19,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:19,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:20:19,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:19,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:20:19,325 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:20:19,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 08:20:19,371 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:20:19,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:20:19,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:19,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:19,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 37 [2022-11-19 08:20:19,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:19,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-19 08:20:19,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:19,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 08:20:19,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:19,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 08:20:19,624 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 137 [2022-11-19 08:20:19,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 104 [2022-11-19 08:20:19,642 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 57 [2022-11-19 08:20:19,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2022-11-19 08:20:19,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-19 08:20:19,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2022-11-19 08:20:19,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 128 [2022-11-19 08:20:19,778 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 81 [2022-11-19 08:20:19,786 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 57 [2022-11-19 08:20:19,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2022-11-19 08:20:19,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-19 08:20:19,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2022-11-19 08:20:19,925 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:20:20,361 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '820#(and (<= 0 |ULTIMATE.start_main_~tail~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= |ULTIMATE.start_main_~tail~0#1.offset| 0))' at error location [2022-11-19 08:20:20,361 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:20:20,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:20:20,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2022-11-19 08:20:20,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217661672] [2022-11-19 08:20:20,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:20:20,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 08:20:20,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:20,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 08:20:20,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-11-19 08:20:20,363 INFO L87 Difference]: Start difference. First operand 34 states and 46 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:21,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:21,192 INFO L93 Difference]: Finished difference Result 92 states and 124 transitions. [2022-11-19 08:20:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:20:21,194 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 08:20:21,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:21,194 INFO L225 Difference]: With dead ends: 92 [2022-11-19 08:20:21,194 INFO L226 Difference]: Without dead ends: 53 [2022-11-19 08:20:21,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:20:21,196 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 98 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:21,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 143 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:20:21,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-19 08:20:21,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2022-11-19 08:20:21,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 41 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:21,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2022-11-19 08:20:21,215 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 16 [2022-11-19 08:20:21,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:21,216 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2022-11-19 08:20:21,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:21,216 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2022-11-19 08:20:21,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 08:20:21,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:21,217 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:21,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:21,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 08:20:21,428 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:21,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:21,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1586118262, now seen corresponding path program 2 times [2022-11-19 08:20:21,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:21,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918665182] [2022-11-19 08:20:21,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:21,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:21,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918665182] [2022-11-19 08:20:21,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918665182] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:20:21,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068328799] [2022-11-19 08:20:21,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:20:21,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:21,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:21,876 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:20:21,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:20:21,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:20:21,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:20:21,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-19 08:20:22,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:22,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:20:22,019 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 11 treesize of output 7 [2022-11-19 08:20:22,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:22,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-11-19 08:20:22,125 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:20:22,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-19 08:20:22,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:20:22,165 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:20:22,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:20:22,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:22,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:22,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:20:22,279 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-19 08:20:22,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 08:20:22,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2022-11-19 08:20:22,393 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:22,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:22,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068328799] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:22,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1489203346] [2022-11-19 08:20:22,938 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-19 08:20:22,938 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:20:22,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:20:22,939 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:20:22,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:20:22,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:22,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:22,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:22,974 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:20:22,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 41 [2022-11-19 08:20:22,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:22,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:20:22,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:22,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 08:20:23,031 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:20:23,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:20:23,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:20:23,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:23,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:23,096 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:20:23,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 22 [2022-11-19 08:20:23,170 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 08:20:23,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-19 08:20:23,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:23,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-19 08:20:23,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 08:20:23,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:23,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:23,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:23,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 56 [2022-11-19 08:20:23,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:23,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:23,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:23,805 INFO L321 Elim1Store]: treesize reduction 137, result has 33.2 percent of original size [2022-11-19 08:20:23,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 322 treesize of output 340 [2022-11-19 08:20:23,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:23,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:23,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:23,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:24,024 INFO L321 Elim1Store]: treesize reduction 142, result has 20.2 percent of original size [2022-11-19 08:20:24,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 304 treesize of output 299 [2022-11-19 08:20:24,228 INFO L321 Elim1Store]: treesize reduction 124, result has 24.8 percent of original size [2022-11-19 08:20:24,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 269 treesize of output 293 [2022-11-19 08:20:24,338 INFO L321 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2022-11-19 08:20:24,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 262 treesize of output 271 [2022-11-19 08:20:24,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:24,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:24,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:24,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:24,442 INFO L321 Elim1Store]: treesize reduction 69, result has 19.8 percent of original size [2022-11-19 08:20:24,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 273 treesize of output 260 [2022-11-19 08:20:24,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:24,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:24,557 INFO L321 Elim1Store]: treesize reduction 69, result has 19.8 percent of original size [2022-11-19 08:20:24,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 282 treesize of output 273 [2022-11-19 08:20:24,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:24,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:24,680 INFO L321 Elim1Store]: treesize reduction 76, result has 23.2 percent of original size [2022-11-19 08:20:24,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 274 treesize of output 278 [2022-11-19 08:20:27,370 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 6 treesize of output 5 [2022-11-19 08:20:27,376 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 08:20:27,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:27,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:27,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:27,438 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:20:27,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 23 [2022-11-19 08:20:27,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:27,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:27,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:27,477 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:20:27,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 19 [2022-11-19 08:20:27,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:27,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:27,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:27,518 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:20:27,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 30 [2022-11-19 08:20:27,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:27,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:27,661 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:20:27,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 19 [2022-11-19 08:20:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:27,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:27,697 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:20:27,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 23 [2022-11-19 08:20:27,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:27,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:27,730 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:20:27,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 30 [2022-11-19 08:20:27,746 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 08:20:27,752 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 6 treesize of output 5 [2022-11-19 08:20:27,778 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:20:28,224 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1155#(and (<= 0 |ULTIMATE.start_main_~tail~0#1.offset|) (or (< (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 10) (not (<= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 20))) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (not (= 0 |ULTIMATE.start_main_~p~0#1.base|)) (= |#NULL.base| 0) (<= |ULTIMATE.start_main_~tail~0#1.offset| 0) (= |ULTIMATE.start_main_~list~0#1.base| |ULTIMATE.start_main_~p~0#1.base|))' at error location [2022-11-19 08:20:28,224 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:20:28,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:20:28,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-19 08:20:28,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386609381] [2022-11-19 08:20:28,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:20:28,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-19 08:20:28,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:28,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-19 08:20:28,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=350, Unknown=1, NotChecked=0, Total=420 [2022-11-19 08:20:28,227 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:28,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:28,951 INFO L93 Difference]: Finished difference Result 72 states and 91 transitions. [2022-11-19 08:20:28,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:20:28,951 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 08:20:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:28,952 INFO L225 Difference]: With dead ends: 72 [2022-11-19 08:20:28,952 INFO L226 Difference]: Without dead ends: 65 [2022-11-19 08:20:28,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=168, Invalid=698, Unknown=4, NotChecked=0, Total=870 [2022-11-19 08:20:28,954 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 81 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:28,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 115 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 62 Invalid, 0 Unknown, 45 Unchecked, 0.1s Time] [2022-11-19 08:20:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-19 08:20:28,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 50. [2022-11-19 08:20:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 49 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:28,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 65 transitions. [2022-11-19 08:20:28,966 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 65 transitions. Word has length 16 [2022-11-19 08:20:28,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:28,966 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 65 transitions. [2022-11-19 08:20:28,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2022-11-19 08:20:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:20:28,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:28,968 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:28,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:29,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 08:20:29,174 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash -980429168, now seen corresponding path program 2 times [2022-11-19 08:20:29,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:29,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581314830] [2022-11-19 08:20:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:30,168 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:30,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:30,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581314830] [2022-11-19 08:20:30,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581314830] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:20:30,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008779745] [2022-11-19 08:20:30,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:20:30,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:30,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:30,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:20:30,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd93f-8f61-463f-874b-d5de34667fc4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 08:20:30,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:20:30,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:20:30,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-19 08:20:30,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:30,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:20:30,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:30,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:30,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2022-11-19 08:20:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:20:30,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-19 08:20:30,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-19 08:20:30,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:20:30,468 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:20:30,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 39 [2022-11-19 08:20:30,480 INFO L321 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2022-11-19 08:20:30,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 08:20:30,649 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:20:30,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 114 treesize of output 106 [2022-11-19 08:20:30,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 76 [2022-11-19 08:20:30,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 73 [2022-11-19 08:20:30,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-19 08:20:30,772 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 8 treesize of output 1 [2022-11-19 08:20:30,914 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:20:30,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 220 treesize of output 152 [2022-11-19 08:20:30,938 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-19 08:20:30,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 132 [2022-11-19 08:20:30,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 76 [2022-11-19 08:20:30,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-19 08:20:30,982 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:20:30,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 36 [2022-11-19 08:20:30,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-19 08:20:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:30,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:31,173 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:20:31,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 104 [2022-11-19 08:20:31,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 78 [2022-11-19 08:20:31,534 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:20:31,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 52289 treesize of output 48643 [2022-11-19 08:20:34,316 INFO L321 Elim1Store]: treesize reduction 15, result has 67.4 percent of original size [2022-11-19 08:20:34,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 41845 treesize of output 38113 [2022-11-19 08:20:34,766 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:20:34,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 54201 treesize of output 52397 [2022-11-19 08:20:36,228 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:20:36,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86476 treesize of output 84448 [2022-11-19 08:20:41,177 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:20:41,178 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 302 treesize of output 280 [2022-11-19 08:20:43,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-19 08:20:43,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-19 08:20:43,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4