./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh --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 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- 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-2329fc7 [2022-12-14 12:01:26,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:01:26,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:01:26,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:01:26,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:01:26,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:01:26,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:01:26,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:01:26,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:01:26,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:01:26,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:01:26,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:01:26,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:01:26,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:01:26,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:01:26,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:01:26,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:01:26,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:01:26,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:01:26,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:01:26,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:01:26,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:01:26,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:01:26,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:01:26,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:01:26,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:01:26,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:01:26,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:01:26,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:01:26,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:01:26,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:01:26,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:01:26,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:01:26,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:01:26,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:01:26,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:01:26,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:01:26,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:01:26,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:01:26,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:01:26,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:01:26,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:01:26,277 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:01:26,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:01:26,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:01:26,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:01:26,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:01:26,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:01:26,279 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:01:26,279 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:01:26,280 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:01:26,280 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:01:26,280 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:01:26,280 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:01:26,280 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:01:26,280 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:01:26,281 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:01:26,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:01:26,281 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:01:26,281 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:01:26,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:01:26,282 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:01:26,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:01:26,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:01:26,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:01:26,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:01:26,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:01:26,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:01:26,283 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:01:26,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:01:26,284 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:01:26,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:01:26,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:01:26,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:01:26,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:01:26,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:01:26,285 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:01:26,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:01:26,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:01:26,286 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:01:26,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:01:26,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:01:26,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:01:26,286 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_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2022-12-14 12:01:26,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:01:26,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:01:26,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:01:26,487 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:01:26,487 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:01:26,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2022-12-14 12:01:29,023 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:01:29,249 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:01:29,250 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2022-12-14 12:01:29,261 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/data/0eba86720/743a6ab1135846a49863a69345d3589a/FLAG17102eac5 [2022-12-14 12:01:29,576 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/data/0eba86720/743a6ab1135846a49863a69345d3589a [2022-12-14 12:01:29,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:01:29,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:01:29,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:01:29,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:01:29,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:01:29,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:29,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43010cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29, skipping insertion in model container [2022-12-14 12:01:29,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:29,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:01:29,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:01:29,873 WARN L237 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_ffcd6fb6-36a3-4c93-9c98-787247edea3d/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2022-12-14 12:01:29,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:01:29,907 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:01:29,930 WARN L237 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_ffcd6fb6-36a3-4c93-9c98-787247edea3d/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2022-12-14 12:01:29,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:01:29,966 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:01:29,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29 WrapperNode [2022-12-14 12:01:29,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:01:29,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:01:29,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:01:29,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:01:29,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:29,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,009 INFO L138 Inliner]: procedures = 232, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2022-12-14 12:01:30,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:01:30,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:01:30,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:01:30,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:01:30,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,047 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:01:30,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:01:30,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:01:30,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:01:30,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (1/1) ... [2022-12-14 12:01:30,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:01:30,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:01:30,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:01:30,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:01:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:01:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2022-12-14 12:01:30,115 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2022-12-14 12:01:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:01:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:01:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2022-12-14 12:01:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2022-12-14 12:01:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:01:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-12-14 12:01:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-12-14 12:01:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:01:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:01:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:01:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:01:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-12-14 12:01:30,117 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-12-14 12:01:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:01:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:01:30,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:01:30,231 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:01:30,232 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:01:30,515 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:01:30,543 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:01:30,543 INFO L300 CfgBuilder]: Removed 41 assume(true) statements. [2022-12-14 12:01:30,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:01:30 BoogieIcfgContainer [2022-12-14 12:01:30,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:01:30,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:01:30,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:01:30,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:01:30,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:01:29" (1/3) ... [2022-12-14 12:01:30,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a863a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:01:30, skipping insertion in model container [2022-12-14 12:01:30,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:01:29" (2/3) ... [2022-12-14 12:01:30,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a863a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:01:30, skipping insertion in model container [2022-12-14 12:01:30,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:01:30" (3/3) ... [2022-12-14 12:01:30,552 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2022-12-14 12:01:30,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:01:30,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:01:30,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:01:30,608 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;@2eff022c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:01:30,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:01:30,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 76 states have (on average 1.8421052631578947) internal successors, (140), 95 states have internal predecessors, (140), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-12-14 12:01:30,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 12:01:30,632 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:30,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:30,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:30,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:30,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1563842699, now seen corresponding path program 1 times [2022-12-14 12:01:30,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:30,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392011952] [2022-12-14 12:01:30,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:30,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:30,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:01:30,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:30,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392011952] [2022-12-14 12:01:30,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392011952] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:01:30,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:01:30,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:01:30,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862688028] [2022-12-14 12:01:30,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:01:30,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:01:30,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:01:30,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:01:30,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:01:30,807 INFO L87 Difference]: Start difference. First operand has 105 states, 76 states have (on average 1.8421052631578947) internal successors, (140), 95 states have internal predecessors, (140), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:01:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:30,873 INFO L93 Difference]: Finished difference Result 206 states and 369 transitions. [2022-12-14 12:01:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:01:30,876 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 12:01:30,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:30,883 INFO L225 Difference]: With dead ends: 206 [2022-12-14 12:01:30,884 INFO L226 Difference]: Without dead ends: 97 [2022-12-14 12:01:30,887 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 [2022-12-14 12:01:30,890 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:30,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:01:30,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-12-14 12:01:30,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-12-14 12:01:30,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 87 states have internal predecessors, (92), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 12:01:30,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 118 transitions. [2022-12-14 12:01:30,928 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 118 transitions. Word has length 8 [2022-12-14 12:01:30,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:30,928 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 118 transitions. [2022-12-14 12:01:30,929 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:01:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 118 transitions. [2022-12-14 12:01:30,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 12:01:30,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:30,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:30,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:01:30,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:30,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:30,931 INFO L85 PathProgramCache]: Analyzing trace with hash 896972321, now seen corresponding path program 1 times [2022-12-14 12:01:30,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:30,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061744365] [2022-12-14 12:01:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:30,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:01:31,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:31,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061744365] [2022-12-14 12:01:31,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061744365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:01:31,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:01:31,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:01:31,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396791249] [2022-12-14 12:01:31,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:01:31,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:01:31,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:01:31,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:01:31,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:01:31,181 INFO L87 Difference]: Start difference. First operand 97 states and 118 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:31,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:31,297 INFO L93 Difference]: Finished difference Result 99 states and 119 transitions. [2022-12-14 12:01:31,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:01:31,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-14 12:01:31,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:31,299 INFO L225 Difference]: With dead ends: 99 [2022-12-14 12:01:31,299 INFO L226 Difference]: Without dead ends: 96 [2022-12-14 12:01:31,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 12:01:31,301 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 168 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:31,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 205 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:01:31,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-12-14 12:01:31,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-12-14 12:01:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 72 states have (on average 1.2638888888888888) internal successors, (91), 86 states have internal predecessors, (91), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 12:01:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 116 transitions. [2022-12-14 12:01:31,310 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 116 transitions. Word has length 15 [2022-12-14 12:01:31,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:31,311 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 116 transitions. [2022-12-14 12:01:31,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:31,312 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2022-12-14 12:01:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 12:01:31,312 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:31,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:31,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:01:31,313 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:31,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1865049645, now seen corresponding path program 1 times [2022-12-14 12:01:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:31,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794899703] [2022-12-14 12:01:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:31,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:01:31,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:31,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794899703] [2022-12-14 12:01:31,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794899703] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:01:31,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:01:31,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 12:01:31,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477305106] [2022-12-14 12:01:31,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:01:31,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 12:01:31,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:01:31,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 12:01:31,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:01:31,706 INFO L87 Difference]: Start difference. First operand 96 states and 116 transitions. Second operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:32,135 INFO L93 Difference]: Finished difference Result 181 states and 217 transitions. [2022-12-14 12:01:32,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 12:01:32,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 12:01:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:32,137 INFO L225 Difference]: With dead ends: 181 [2022-12-14 12:01:32,137 INFO L226 Difference]: Without dead ends: 175 [2022-12-14 12:01:32,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-12-14 12:01:32,138 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 387 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:32,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 469 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 12:01:32,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-12-14 12:01:32,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 159. [2022-12-14 12:01:32,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 131 states have (on average 1.2671755725190839) internal successors, (166), 145 states have internal predecessors, (166), 23 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 12:01:32,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 196 transitions. [2022-12-14 12:01:32,155 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 196 transitions. Word has length 18 [2022-12-14 12:01:32,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:32,155 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 196 transitions. [2022-12-14 12:01:32,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:32,156 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 196 transitions. [2022-12-14 12:01:32,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 12:01:32,156 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:32,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:32,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:01:32,157 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:32,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:32,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2031360974, now seen corresponding path program 1 times [2022-12-14 12:01:32,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:32,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352779877] [2022-12-14 12:01:32,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:32,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:32,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:01:32,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:32,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352779877] [2022-12-14 12:01:32,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352779877] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:01:32,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:01:32,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 12:01:32,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923025529] [2022-12-14 12:01:32,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:01:32,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 12:01:32,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:01:32,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 12:01:32,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-14 12:01:32,938 INFO L87 Difference]: Start difference. First operand 159 states and 196 transitions. Second operand has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:33,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:33,711 INFO L93 Difference]: Finished difference Result 253 states and 308 transitions. [2022-12-14 12:01:33,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 12:01:33,711 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-12-14 12:01:33,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:33,712 INFO L225 Difference]: With dead ends: 253 [2022-12-14 12:01:33,712 INFO L226 Difference]: Without dead ends: 250 [2022-12-14 12:01:33,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-12-14 12:01:33,713 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 309 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:33,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 141 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 12:01:33,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-12-14 12:01:33,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 234. [2022-12-14 12:01:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 199 states have (on average 1.2613065326633166) internal successors, (251), 214 states have internal predecessors, (251), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:01:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 290 transitions. [2022-12-14 12:01:33,736 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 290 transitions. Word has length 21 [2022-12-14 12:01:33,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:33,736 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 290 transitions. [2022-12-14 12:01:33,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:33,737 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 290 transitions. [2022-12-14 12:01:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 12:01:33,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:33,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:33,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:01:33,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:33,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:33,738 INFO L85 PathProgramCache]: Analyzing trace with hash -66680349, now seen corresponding path program 1 times [2022-12-14 12:01:33,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:33,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807513454] [2022-12-14 12:01:33,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:33,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:34,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:01:34,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:34,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807513454] [2022-12-14 12:01:34,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807513454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:01:34,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:01:34,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 12:01:34,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591851432] [2022-12-14 12:01:34,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:01:34,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 12:01:34,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:01:34,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 12:01:34,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-14 12:01:34,293 INFO L87 Difference]: Start difference. First operand 234 states and 290 transitions. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:35,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:35,083 INFO L93 Difference]: Finished difference Result 254 states and 309 transitions. [2022-12-14 12:01:35,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 12:01:35,083 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-12-14 12:01:35,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:35,086 INFO L225 Difference]: With dead ends: 254 [2022-12-14 12:01:35,086 INFO L226 Difference]: Without dead ends: 251 [2022-12-14 12:01:35,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-12-14 12:01:35,088 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 349 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:35,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 142 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 12:01:35,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-12-14 12:01:35,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 234. [2022-12-14 12:01:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 199 states have (on average 1.256281407035176) internal successors, (250), 214 states have internal predecessors, (250), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:01:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 289 transitions. [2022-12-14 12:01:35,106 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 289 transitions. Word has length 24 [2022-12-14 12:01:35,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:35,106 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 289 transitions. [2022-12-14 12:01:35,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:35,106 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 289 transitions. [2022-12-14 12:01:35,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 12:01:35,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:35,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:35,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:01:35,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:35,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:35,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1858713401, now seen corresponding path program 1 times [2022-12-14 12:01:35,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:35,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768545753] [2022-12-14 12:01:35,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:35,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:01:35,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:35,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768545753] [2022-12-14 12:01:35,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768545753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:01:35,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:01:35,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 12:01:35,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340781816] [2022-12-14 12:01:35,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:01:35,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 12:01:35,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:01:35,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 12:01:35,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-14 12:01:35,981 INFO L87 Difference]: Start difference. First operand 234 states and 289 transitions. Second operand has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 10 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:36,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:36,960 INFO L93 Difference]: Finished difference Result 251 states and 304 transitions. [2022-12-14 12:01:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 12:01:36,961 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 10 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-12-14 12:01:36,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:36,961 INFO L225 Difference]: With dead ends: 251 [2022-12-14 12:01:36,961 INFO L226 Difference]: Without dead ends: 248 [2022-12-14 12:01:36,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-12-14 12:01:36,962 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 348 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:36,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 169 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 12:01:36,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-12-14 12:01:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 234. [2022-12-14 12:01:36,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 199 states have (on average 1.2512562814070352) internal successors, (249), 214 states have internal predecessors, (249), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:01:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 288 transitions. [2022-12-14 12:01:36,982 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 288 transitions. Word has length 27 [2022-12-14 12:01:36,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:36,982 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 288 transitions. [2022-12-14 12:01:36,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 10 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:36,982 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 288 transitions. [2022-12-14 12:01:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 12:01:36,983 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:36,983 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:36,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:01:36,983 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:36,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:36,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1917225074, now seen corresponding path program 1 times [2022-12-14 12:01:36,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:36,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733668208] [2022-12-14 12:01:36,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:36,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:01:38,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:38,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733668208] [2022-12-14 12:01:38,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733668208] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:01:38,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942790864] [2022-12-14 12:01:38,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:38,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:01:38,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:01:38,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:01:38,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:01:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:38,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 128 conjunts are in the unsatisfiable core [2022-12-14 12:01:38,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:01:38,278 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 12:01:38,279 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 [2022-12-14 12:01:38,289 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 [2022-12-14 12:01:38,306 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 12:01:38,306 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 [2022-12-14 12:01:38,313 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 [2022-12-14 12:01:38,333 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 12:01:38,333 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 [2022-12-14 12:01:38,394 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 7 treesize of output 3 [2022-12-14 12:01:38,397 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 7 treesize of output 3 [2022-12-14 12:01:38,513 INFO L321 Elim1Store]: treesize reduction 77, result has 3.8 percent of original size [2022-12-14 12:01:38,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 77 [2022-12-14 12:01:38,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:38,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 48 [2022-12-14 12:01:38,531 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 19 treesize of output 11 [2022-12-14 12:01:38,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:38,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:38,603 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 26 treesize of output 28 [2022-12-14 12:01:38,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:38,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 24 [2022-12-14 12:01:38,698 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 12:01:38,698 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 30 treesize of output 32 [2022-12-14 12:01:38,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:38,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 8 [2022-12-14 12:01:38,723 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 12:01:38,723 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 [2022-12-14 12:01:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:38,781 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 24 treesize of output 8 [2022-12-14 12:01:38,928 INFO L321 Elim1Store]: treesize reduction 177, result has 36.1 percent of original size [2022-12-14 12:01:38,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 321 [2022-12-14 12:01:38,943 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 8 treesize of output 7 [2022-12-14 12:01:38,955 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 8 treesize of output 7 [2022-12-14 12:01:38,970 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 8 treesize of output 7 [2022-12-14 12:01:39,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:39,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:39,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 145 treesize of output 128 [2022-12-14 12:01:39,053 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 [2022-12-14 12:01:39,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:39,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:39,121 INFO L321 Elim1Store]: treesize reduction 33, result has 26.7 percent of original size [2022-12-14 12:01:39,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 128 [2022-12-14 12:01:39,152 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 [2022-12-14 12:01:39,161 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 [2022-12-14 12:01:39,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:39,251 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 64 treesize of output 11 [2022-12-14 12:01:39,255 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 [2022-12-14 12:01:39,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:39,610 INFO L321 Elim1Store]: treesize reduction 58, result has 24.7 percent of original size [2022-12-14 12:01:39,611 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 504 treesize of output 488 [2022-12-14 12:01:39,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:39,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 473 treesize of output 389 [2022-12-14 12:01:39,638 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 12 treesize of output 11 [2022-12-14 12:01:40,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:40,099 INFO L321 Elim1Store]: treesize reduction 18, result has 50.0 percent of original size [2022-12-14 12:01:40,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 983 treesize of output 803 [2022-12-14 12:01:40,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:40,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:40,154 INFO L321 Elim1Store]: treesize reduction 37, result has 36.2 percent of original size [2022-12-14 12:01:40,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 147 [2022-12-14 12:01:40,251 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 9 treesize of output 7 [2022-12-14 12:01:40,257 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 [2022-12-14 12:01:40,259 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 [2022-12-14 12:01:40,408 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 7 treesize of output 3 [2022-12-14 12:01:40,451 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 16 treesize of output 8 [2022-12-14 12:01:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:01:40,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:01:40,817 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_563 Int) (v_ArrVal_558 (Array Int Int)) (v_ArrVal_560 (Array Int Int)) (v_ArrVal_562 (Array Int Int)) (v_ArrVal_555 (Array Int Int)) (v_ArrVal_532 (Array Int Int))) (not (= (select (select (store (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (store (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_562) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_558) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_555) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_560) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_563))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_532) |c_~#gl_list~0.base|) (+ |c_~#gl_list~0.offset| 4)) |c_~#gl_list~0.base|))) is different from false [2022-12-14 12:01:40,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942790864] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:01:40,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1539540019] [2022-12-14 12:01:40,836 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 12:01:40,837 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:01:40,840 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:01:40,845 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:01:40,845 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:01:40,906 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-12-14 12:01:40,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 22 treesize of output 42 [2022-12-14 12:01:40,926 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 12:01:40,927 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 1 case distinctions, treesize of input 26 treesize of output 32 [2022-12-14 12:01:40,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:40,946 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 12:01:40,947 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 1 case distinctions, treesize of input 32 treesize of output 27 [2022-12-14 12:01:40,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:40,968 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 12:01:40,969 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 1 case distinctions, treesize of input 32 treesize of output 27 [2022-12-14 12:01:41,013 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 12:01:41,013 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 [2022-12-14 12:01:41,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,124 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-12-14 12:01:41,124 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 3 case distinctions, treesize of input 85 treesize of output 71 [2022-12-14 12:01:41,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,194 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-12-14 12:01:41,194 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 3 case distinctions, treesize of input 85 treesize of output 52 [2022-12-14 12:01:41,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,287 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-12-14 12:01:41,287 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 3 case distinctions, treesize of input 81 treesize of output 70 [2022-12-14 12:01:41,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,320 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 21 treesize of output 11 [2022-12-14 12:01:41,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,326 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 21 treesize of output 11 [2022-12-14 12:01:41,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 12:01:41,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 12:01:41,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,362 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 21 treesize of output 11 [2022-12-14 12:01:41,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,371 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 21 treesize of output 11 [2022-12-14 12:01:41,399 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 15 treesize of output 11 [2022-12-14 12:01:41,407 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 19 treesize of output 1 [2022-12-14 12:01:41,413 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 13 treesize of output 9 [2022-12-14 12:01:41,456 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 11 treesize of output 7 [2022-12-14 12:01:41,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 12:01:41,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 12:01:41,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-12-14 12:01:41,530 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-12-14 12:01:41,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 65 [2022-12-14 12:01:41,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 12:01:41,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 12:01:41,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 12:01:41,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 12:01:41,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 12:01:41,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 12:01:41,686 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 15 treesize of output 11 [2022-12-14 12:01:41,694 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 13 treesize of output 9 [2022-12-14 12:01:41,706 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 19 treesize of output 1 [2022-12-14 12:01:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:41,940 INFO L321 Elim1Store]: treesize reduction 72, result has 27.3 percent of original size [2022-12-14 12:01:41,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 236 treesize of output 240 [2022-12-14 12:01:41,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:41,955 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:41,991 INFO L321 Elim1Store]: treesize reduction 72, result has 27.3 percent of original size [2022-12-14 12:01:41,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 230 treesize of output 234 [2022-12-14 12:01:42,053 INFO L321 Elim1Store]: treesize reduction 76, result has 24.8 percent of original size [2022-12-14 12:01:42,054 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 215 treesize of output 224 [2022-12-14 12:01:42,126 INFO L321 Elim1Store]: treesize reduction 108, result has 23.4 percent of original size [2022-12-14 12:01:42,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 218 treesize of output 234 [2022-12-14 12:01:42,153 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 12:01:42,154 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 1 case distinctions, treesize of input 216 treesize of output 218 [2022-12-14 12:01:42,435 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 12:01:42,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 196 treesize of output 182 [2022-12-14 12:01:42,445 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 12:01:42,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 182 treesize of output 168 [2022-12-14 12:01:42,455 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 12:01:42,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 176 treesize of output 164 [2022-12-14 12:01:42,517 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 12:01:42,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 196 treesize of output 182 [2022-12-14 12:01:42,528 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 12:01:42,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 182 treesize of output 168 [2022-12-14 12:01:42,537 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 12:01:42,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 176 treesize of output 164 [2022-12-14 12:01:42,569 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 15 treesize of output 11 [2022-12-14 12:01:42,576 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 19 treesize of output 1 [2022-12-14 12:01:42,580 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 13 treesize of output 9 [2022-12-14 12:01:42,598 INFO L197 IcfgInterpreter]: Interpreting procedure list_add with input of size 29 for LOIs [2022-12-14 12:01:42,631 INFO L197 IcfgInterpreter]: Interpreting procedure inspect with input of size 63 for LOIs [2022-12-14 12:01:42,729 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 74 for LOIs [2022-12-14 12:01:42,739 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:01:46,240 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3789#(and (= 22 (select |#length| 2)) (= |~#gl_list~0.base| 3) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#length| 3) 8) (= (select |#valid| 1) 1) (= (select (select |#memory_$Pointer$.offset| |~#gl_list~0.base|) (+ 4 |~#gl_list~0.offset|)) |~#gl_list~0.offset|) (= (select |#valid| 0) 0) (= |~#gl_list~0.offset| 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (or (not (= |~#gl_list~0.base| (select (select |#memory_$Pointer$.base| |~#gl_list~0.base|) |~#gl_list~0.offset|))) (not (= |~#gl_list~0.offset| (select (select |#memory_$Pointer$.offset| |~#gl_list~0.base|) |~#gl_list~0.offset|)))) (exists ((|v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7| Int)) (and (< |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7| |#StackHeapBarrier|) (not (= |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7| 1)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7|) 12) 12) (not (= 3 |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7|)) (not (= 2 |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7|)) (= (select |#length| |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7|) 20) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7|) 12) |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7|) (= (select |#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7|) 1) (not (= |v_ULTIMATE.start_gl_insert_~node~1#1.base_BEFORE_CALL_7| 0)))) (= (select (select |#memory_$Pointer$.base| |~#gl_list~0.base|) (+ 4 |~#gl_list~0.offset|)) |~#gl_list~0.base|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 12:01:46,240 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:01:46,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 12:01:46,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 28 [2022-12-14 12:01:46,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843860669] [2022-12-14 12:01:46,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 12:01:46,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 12:01:46,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:01:46,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 12:01:46,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=2175, Unknown=31, NotChecked=94, Total=2450 [2022-12-14 12:01:46,243 INFO L87 Difference]: Start difference. First operand 234 states and 288 transitions. Second operand has 29 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 19 states have internal predecessors, (44), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 12:01:46,423 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_old(#memory_$Pointer$.offset)| |c_list_add_#in~head#1.base|)) (.cse5 (select (select |c_old(#memory_$Pointer$.base)| |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset|))) (let ((.cse4 (= |c_list_add_#in~head#1.base| |c_list_add_#in~new#1.base|)) (.cse0 (= |c_list_add_#in~head#1.base| .cse5)) (.cse3 (select |c_#memory_$Pointer$.offset| |c_list_add_#in~head#1.base|)) (.cse14 (+ (select .cse1 |c_list_add_#in~head#1.offset|) 4))) (and (or .cse0 (let ((.cse2 (@diff .cse1 .cse3))) (and (= (store .cse1 .cse2 (select .cse3 .cse2)) .cse3) (or (= |c_list_add_#in~head#1.offset| .cse2) (= .cse1 .cse3)))) .cse4) (= (select |c_#valid| 3) 1) (= |c_~#gl_list~0.offset| 0) (= 3 |c_~#gl_list~0.base|) (exists ((v_ArrVal_526 (Array Int Int)) (v_ArrVal_530 Int) (v_ArrVal_525 (Array Int Int)) (v_ArrVal_520 (Array Int Int)) (v_ArrVal_522 (Array Int Int))) (= (store (store (store |c_old(#memory_$Pointer$.base)| .cse5 v_ArrVal_522) |c_list_add_#in~new#1.base| v_ArrVal_525) |c_list_add_#in~head#1.base| (store (select (store (store |c_old(#memory_$Pointer$.base)| .cse5 v_ArrVal_526) |c_list_add_#in~new#1.base| v_ArrVal_520) |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset| v_ArrVal_530)) |c_#memory_$Pointer$.base|)) (let ((.cse6 (select |c_#memory_$Pointer$.offset| .cse5)) (.cse12 (= |c_list_add_#in~new#1.offset| (select .cse3 |c_list_add_#in~head#1.offset|)))) (or (and (exists ((v_DerPreprocessor_10 (Array Int Int)) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse9 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_DerPreprocessor_4) |c_list_add_#in~new#1.base| v_DerPreprocessor_5) |c_list_add_#in~head#1.base| v_DerPreprocessor_6) .cse5 v_DerPreprocessor_4) |c_list_add_#in~new#1.base| v_DerPreprocessor_5) |c_list_add_#in~head#1.base| v_DerPreprocessor_6))) (let ((.cse11 (store (store (store (store (store (store .cse9 .cse5 v_DerPreprocessor_10) |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| v_DerPreprocessor_12) .cse5 v_DerPreprocessor_10) |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| v_DerPreprocessor_12))) (let ((.cse8 (select |c_#memory_$Pointer$.offset| |c_list_add_#in~new#1.base|)) (.cse7 (select .cse9 .cse5)) (.cse10 (select .cse11 .cse5))) (and (= .cse6 .cse7) (= .cse8 (select .cse9 |c_list_add_#in~new#1.base|)) (= (select v_DerPreprocessor_6 |c_list_add_#in~head#1.offset|) |c_list_add_#in~new#1.offset|) (= v_DerPreprocessor_10 .cse10) (= .cse8 (select .cse11 |c_list_add_#in~new#1.base|)) (= .cse7 v_DerPreprocessor_4) (= |c_list_add_#in~new#1.offset| (select v_DerPreprocessor_12 |c_list_add_#in~head#1.offset|)) (= .cse6 .cse10)))))) .cse12 (not .cse4)) (and .cse12 (exists ((v_DerPreprocessor_7 (Array Int Int)) (v_DerPreprocessor_9 (Array Int Int)) (v_DerPreprocessor_8 (Array Int Int))) (let ((.cse13 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_DerPreprocessor_7) |c_list_add_#in~new#1.base| v_DerPreprocessor_8) |c_list_add_#in~head#1.base| v_DerPreprocessor_9) .cse5 v_DerPreprocessor_7) |c_list_add_#in~new#1.base| v_DerPreprocessor_8) |c_list_add_#in~head#1.base| v_DerPreprocessor_9))) (and (= .cse6 (select .cse13 .cse5)) (= v_DerPreprocessor_8 (select .cse13 |c_list_add_#in~new#1.base|)) (= |c_list_add_#in~new#1.offset| (select v_DerPreprocessor_9 |c_list_add_#in~head#1.offset|))))) .cse4) (and .cse0 .cse12))) (exists ((v_ArrVal_515 (Array Int Int)) (v_ArrVal_511 (Array Int Int)) (v_ArrVal_510 (Array Int Int))) (= (store (store (store |c_old(#memory_$Pointer$.base)| .cse5 v_ArrVal_511) |c_list_add_#in~new#1.base| v_ArrVal_515) |c_list_add_#in~head#1.base| (store (select (store (store |c_old(#memory_$Pointer$.base)| .cse5 (store (select |c_old(#memory_$Pointer$.base)| .cse5) .cse14 |c_list_add_#in~new#1.base|)) |c_list_add_#in~new#1.base| v_ArrVal_510) |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|)) |c_#memory_$Pointer$.base|)) (or (and (or (not .cse0) (<= |c_list_add_#in~new#1.offset| (select .cse3 .cse14)) (= |c_list_add_#in~new#1.base| .cse5)) (= (select (select |c_#memory_$Pointer$.base| |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset|) |c_list_add_#in~new#1.base|)) (<= .cse14 |c_list_add_#in~head#1.offset|))))) is different from true [2022-12-14 12:01:48,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 12:01:52,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:52,688 INFO L93 Difference]: Finished difference Result 344 states and 415 transitions. [2022-12-14 12:01:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 12:01:52,688 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 19 states have internal predecessors, (44), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 29 [2022-12-14 12:01:52,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:52,694 INFO L225 Difference]: With dead ends: 344 [2022-12-14 12:01:52,694 INFO L226 Difference]: Without dead ends: 341 [2022-12-14 12:01:52,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=337, Invalid=3786, Unknown=45, NotChecked=254, Total=4422 [2022-12-14 12:01:52,695 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 1134 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 221 mSolverCounterUnsat, 144 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 144 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:52,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 510 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 3323 Invalid, 144 Unknown, 2 Unchecked, 5.2s Time] [2022-12-14 12:01:52,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-12-14 12:01:52,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 311. [2022-12-14 12:01:52,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 268 states have (on average 1.25) internal successors, (335), 284 states have internal predecessors, (335), 33 states have call successors, (33), 11 states have call predecessors, (33), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 12:01:52,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 383 transitions. [2022-12-14 12:01:52,722 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 383 transitions. Word has length 29 [2022-12-14 12:01:52,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:52,722 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 383 transitions. [2022-12-14 12:01:52,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 19 states have internal predecessors, (44), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 12:01:52,723 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 383 transitions. [2022-12-14 12:01:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 12:01:52,723 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:52,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:52,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:01:52,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:01:52,925 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:52,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:52,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1990057232, now seen corresponding path program 1 times [2022-12-14 12:01:52,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:52,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735458820] [2022-12-14 12:01:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:52,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:01:53,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:53,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735458820] [2022-12-14 12:01:53,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735458820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:01:53,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:01:53,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 12:01:53,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60623698] [2022-12-14 12:01:53,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:01:53,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 12:01:53,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:01:53,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 12:01:53,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-12-14 12:01:53,636 INFO L87 Difference]: Start difference. First operand 311 states and 383 transitions. Second operand has 12 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:54,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:54,483 INFO L93 Difference]: Finished difference Result 326 states and 396 transitions. [2022-12-14 12:01:54,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 12:01:54,483 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-12-14 12:01:54,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:54,484 INFO L225 Difference]: With dead ends: 326 [2022-12-14 12:01:54,484 INFO L226 Difference]: Without dead ends: 323 [2022-12-14 12:01:54,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-12-14 12:01:54,485 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 335 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:54,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 155 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 12:01:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-12-14 12:01:54,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 311. [2022-12-14 12:01:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 268 states have (on average 1.2462686567164178) internal successors, (334), 284 states have internal predecessors, (334), 33 states have call successors, (33), 11 states have call predecessors, (33), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 12:01:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 382 transitions. [2022-12-14 12:01:54,513 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 382 transitions. Word has length 30 [2022-12-14 12:01:54,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:54,513 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 382 transitions. [2022-12-14 12:01:54,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:01:54,513 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 382 transitions. [2022-12-14 12:01:54,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 12:01:54,514 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:54,514 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:54,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 12:01:54,514 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:54,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:54,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1829333469, now seen corresponding path program 1 times [2022-12-14 12:01:54,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:54,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840185575] [2022-12-14 12:01:54,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:54,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:55,609 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:01:55,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:55,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840185575] [2022-12-14 12:01:55,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840185575] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:01:55,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814187923] [2022-12-14 12:01:55,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:55,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:01:55,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:01:55,610 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:01:55,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcd6fb6-36a3-4c93-9c98-787247edea3d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:01:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:55,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 165 conjunts are in the unsatisfiable core [2022-12-14 12:01:55,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:01:55,778 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 12:01:55,779 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 23 treesize of output 27 [2022-12-14 12:01:55,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:55,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 7 [2022-12-14 12:01:55,797 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 12:01:55,797 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 [2022-12-14 12:01:55,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:55,848 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 17 treesize of output 7 [2022-12-14 12:01:55,918 INFO L321 Elim1Store]: treesize reduction 69, result has 33.0 percent of original size [2022-12-14 12:01:55,918 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 87 [2022-12-14 12:01:55,937 INFO L321 Elim1Store]: treesize reduction 60, result has 16.7 percent of original size [2022-12-14 12:01:55,937 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 47 [2022-12-14 12:01:55,942 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 0 case distinctions, treesize of input 17 treesize of output 20 [2022-12-14 12:01:55,947 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 0 case distinctions, treesize of input 26 treesize of output 29 [2022-12-14 12:01:55,955 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 10 treesize of output 8 [2022-12-14 12:01:55,962 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 7 treesize of output 3 [2022-12-14 12:01:55,983 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 12:01:55,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 40 [2022-12-14 12:01:56,007 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 7 treesize of output 3 [2022-12-14 12:01:57,436 INFO L321 Elim1Store]: treesize reduction 205, result has 1.4 percent of original size [2022-12-14 12:01:57,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 156 treesize of output 484 [2022-12-14 12:01:57,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:57,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:57,481 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:57,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:57,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:01:57,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 338 [2022-12-14 12:01:57,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:57,649 INFO L321 Elim1Store]: treesize reduction 84, result has 20.0 percent of original size [2022-12-14 12:01:57,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 554 treesize of output 532 [2022-12-14 12:01:57,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:57,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:57,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 64 treesize of output 71 [2022-12-14 12:01:58,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:01:58,081 INFO L321 Elim1Store]: treesize reduction 52, result has 32.5 percent of original size [2022-12-14 12:01:58,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 64 [2022-12-14 12:02:11,780 WARN L233 SmtUtils]: Spent 13.22s on a formula simplification. DAG size of input: 130 DAG size of output: 113 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:02:11,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:02:11,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 762 [2022-12-14 12:02:11,865 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 340 treesize of output 340 [2022-12-14 12:02:12,316 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 104 treesize of output 5 [2022-12-14 12:02:12,326 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 47 treesize of output 1 [2022-12-14 12:02:12,366 INFO L321 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2022-12-14 12:02:12,366 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 310 treesize of output 185 [2022-12-14 12:02:12,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:02:12,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 177 treesize of output 147 [2022-12-14 12:02:12,399 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 104 treesize of output 5 [2022-12-14 12:02:12,412 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 96 treesize of output 1 [2022-12-14 12:02:12,454 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 12:02:12,664 INFO L321 Elim1Store]: treesize reduction 164, result has 29.3 percent of original size [2022-12-14 12:02:12,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 687 treesize of output 2118 [2022-12-14 12:02:13,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:02:13,750 INFO L217 Elim1Store]: Index analysis took 182 ms [2022-12-14 12:02:16,004 INFO L321 Elim1Store]: treesize reduction 1263, result has 11.7 percent of original size [2022-12-14 12:02:16,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 30 case distinctions, treesize of input 9459249 treesize of output 9462047 [2022-12-14 12:05:05,282 WARN L233 SmtUtils]: Spent 2.82m on a formula simplification. DAG size of input: 1057 DAG size of output: 1045 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 12:06:34,301 WARN L233 SmtUtils]: Spent 25.11s on a formula simplification that was a NOOP. DAG size: 589 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 12:06:57,896 WARN L233 SmtUtils]: Spent 11.28s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 12:09:01,883 WARN L233 SmtUtils]: Spent 24.81s on a formula simplification that was a NOOP. DAG size: 585 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 12:09:38,836 WARN L233 SmtUtils]: Spent 12.39s on a formula simplification that was a NOOP. DAG size: 575 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 12:14:21,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:21,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:21,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:21,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:21,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:21,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:21,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:21,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:21,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:22,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:22,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:22,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:22,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,527 INFO L217 Elim1Store]: Index analysis took 111 ms [2022-12-14 12:14:22,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 1229 [2022-12-14 12:14:22,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:22,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:22,791 INFO L217 Elim1Store]: Index analysis took 139 ms [2022-12-14 12:14:22,940 INFO L321 Elim1Store]: treesize reduction 82, result has 24.1 percent of original size [2022-12-14 12:14:22,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 657 treesize of output 1259 [2022-12-14 12:14:23,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:23,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,264 INFO L217 Elim1Store]: Index analysis took 125 ms [2022-12-14 12:14:23,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 1229 [2022-12-14 12:14:23,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:23,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:23,782 INFO L321 Elim1Store]: treesize reduction 82, result has 24.1 percent of original size [2022-12-14 12:14:23,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 657 treesize of output 1259 [2022-12-14 12:14:24,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:24,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:24,225 INFO L217 Elim1Store]: Index analysis took 160 ms [2022-12-14 12:14:24,400 INFO L321 Elim1Store]: treesize reduction 154, result has 14.4 percent of original size [2022-12-14 12:14:24,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 13 case distinctions, treesize of input 1340 treesize of output 1942 [2022-12-14 12:14:24,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:24,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:24,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:24,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:24,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:24,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:24,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:24,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 1229 [2022-12-14 12:14:25,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:25,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:25,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:25,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:25,410 INFO L217 Elim1Store]: Index analysis took 125 ms [2022-12-14 12:14:25,561 INFO L321 Elim1Store]: treesize reduction 131, result has 7.7 percent of original size [2022-12-14 12:14:25,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 680 treesize of output 1260 [2022-12-14 12:14:26,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:26,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:26,264 INFO L217 Elim1Store]: Index analysis took 138 ms [2022-12-14 12:14:26,517 INFO L321 Elim1Store]: treesize reduction 312, result has 7.7 percent of original size [2022-12-14 12:14:26,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 14 case distinctions, treesize of input 1359 treesize of output 1937 [2022-12-14 12:14:27,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:27,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:27,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:27,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:27,357 INFO L217 Elim1Store]: Index analysis took 166 ms [2022-12-14 12:14:27,578 INFO L321 Elim1Store]: treesize reduction 220, result has 10.6 percent of original size [2022-12-14 12:14:27,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 693 treesize of output 1279 [2022-12-14 12:14:28,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:28,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:28,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:28,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:28,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:28,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:28,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:28,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:29,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:29,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:29,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:29,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:29,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:14:29,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:29,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 644 treesize of output 1229 [2022-12-14 12:14:30,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:30,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:14:30,215 INFO L217 Elim1Store]: Index analysis took 130 ms [2022-12-14 12:14:30,550 INFO L321 Elim1Store]: treesize reduction 294, result has 13.0 percent of original size [2022-12-14 12:14:30,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 14 case distinctions, treesize of input 1340 treesize of output 1944