./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b --- 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-4e7fbc6 [2022-11-23 14:21:54,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:21:54,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:21:54,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:21:54,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:21:54,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:21:54,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:21:54,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:21:54,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:21:54,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:21:54,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:21:54,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:21:54,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:21:54,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:21:54,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:21:54,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:21:54,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:21:54,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:21:54,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:21:54,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:21:54,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:21:54,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:21:54,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:21:54,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:21:54,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:21:54,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:21:54,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:21:54,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:21:54,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:21:54,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:21:54,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:21:54,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:21:54,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:21:54,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:21:54,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:21:54,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:21:54,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:21:54,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:21:54,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:21:54,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:21:54,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:21:54,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:21:54,358 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:21:54,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:21:54,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:21:54,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:21:54,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:21:54,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:21:54,361 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:21:54,361 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:21:54,361 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:21:54,362 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:21:54,362 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:21:54,362 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:21:54,363 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:21:54,363 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:21:54,363 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:21:54,364 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:21:54,364 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:21:54,364 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:21:54,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:21:54,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:21:54,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:21:54,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:21:54,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:21:54,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:21:54,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:21:54,367 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:21:54,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:21:54,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:21:54,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:21:54,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:21:54,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:21:54,369 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:21:54,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:21:54,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:21:54,370 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:21:54,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:21:54,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:21:54,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:21:54,371 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_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b [2022-11-23 14:21:54,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:21:54,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:21:54,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:21:54,675 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:21:54,676 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:21:54,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-11-23 14:21:57,774 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:21:58,373 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:21:58,374 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-11-23 14:21:58,421 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/data/3c7d3a39e/5f154a50f16e45a3a834725084a416aa/FLAG1e6172b27 [2022-11-23 14:21:58,441 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/data/3c7d3a39e/5f154a50f16e45a3a834725084a416aa [2022-11-23 14:21:58,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:21:58,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:21:58,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:21:58,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:21:58,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:21:58,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:58" (1/1) ... [2022-11-23 14:21:58,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5570c529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:58, skipping insertion in model container [2022-11-23 14:21:58,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:58" (1/1) ... [2022-11-23 14:21:58,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:21:58,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:21:59,343 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_cdecb606-bc21-40a2-bac7-a6956883b191/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2022-11-23 14:22:00,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:22:00,249 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:22:00,369 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_cdecb606-bc21-40a2-bac7-a6956883b191/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2022-11-23 14:22:00,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:22:00,798 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:22:00,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00 WrapperNode [2022-11-23 14:22:00,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:22:00,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:22:00,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:22:00,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:22:00,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:00,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,072 INFO L138 Inliner]: procedures = 256, calls = 2433, calls flagged for inlining = 116, calls inlined = 95, statements flattened = 4010 [2022-11-23 14:22:01,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:22:01,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:22:01,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:22:01,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:22:01,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:22:01,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:22:01,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:22:01,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:22:01,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (1/1) ... [2022-11-23 14:22:01,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:22:01,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:22:01,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:22:01,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:22:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-23 14:22:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-23 14:22:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-23 14:22:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-23 14:22:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-23 14:22:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-23 14:22:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-23 14:22:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:22:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:22:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:22:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:22:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-11-23 14:22:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-11-23 14:22:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 14:22:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 14:22:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-23 14:22:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-23 14:22:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:22:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:22:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2022-11-23 14:22:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2022-11-23 14:22:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-11-23 14:22:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-11-23 14:22:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 14:22:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 14:22:01,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 14:22:01,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 14:22:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2022-11-23 14:22:01,436 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2022-11-23 14:22:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2022-11-23 14:22:01,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2022-11-23 14:22:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2022-11-23 14:22:01,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2022-11-23 14:22:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:22:01,437 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:22:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 14:22:01,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 14:22:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:22:01,438 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:22:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2022-11-23 14:22:01,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2022-11-23 14:22:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:22:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-11-23 14:22:01,439 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-11-23 14:22:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:22:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2022-11-23 14:22:01,439 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2022-11-23 14:22:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-23 14:22:01,440 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-23 14:22:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:22:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:22:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 14:22:01,441 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 14:22:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 14:22:01,441 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 14:22:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-23 14:22:01,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-23 14:22:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2022-11-23 14:22:01,443 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2022-11-23 14:22:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-11-23 14:22:01,443 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-11-23 14:22:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-23 14:22:01,443 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-23 14:22:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:22:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 14:22:01,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 14:22:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 14:22:01,444 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 14:22:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-11-23 14:22:01,444 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-11-23 14:22:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-23 14:22:01,445 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-23 14:22:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:22:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2022-11-23 14:22:01,446 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2022-11-23 14:22:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-11-23 14:22:01,446 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-11-23 14:22:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:22:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-23 14:22:01,447 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-23 14:22:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-23 14:22:01,448 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-23 14:22:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:22:01,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:22:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2022-11-23 14:22:01,449 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2022-11-23 14:22:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-23 14:22:01,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-23 14:22:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-23 14:22:01,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-23 14:22:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-11-23 14:22:01,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-11-23 14:22:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:22:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:22:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:22:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2022-11-23 14:22:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2022-11-23 14:22:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-11-23 14:22:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-11-23 14:22:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2022-11-23 14:22:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2022-11-23 14:22:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:22:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:22:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2022-11-23 14:22:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2022-11-23 14:22:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:22:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-11-23 14:22:01,454 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-11-23 14:22:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2022-11-23 14:22:01,455 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2022-11-23 14:22:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2022-11-23 14:22:01,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2022-11-23 14:22:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 14:22:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 14:22:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:22:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2022-11-23 14:22:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2022-11-23 14:22:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:22:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-11-23 14:22:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-11-23 14:22:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:22:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-23 14:22:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-23 14:22:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2022-11-23 14:22:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2022-11-23 14:22:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2022-11-23 14:22:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2022-11-23 14:22:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-23 14:22:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-23 14:22:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2022-11-23 14:22:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2022-11-23 14:22:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-11-23 14:22:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-11-23 14:22:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2022-11-23 14:22:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2022-11-23 14:22:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2022-11-23 14:22:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2022-11-23 14:22:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:22:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-23 14:22:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-23 14:22:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:22:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:22:02,155 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:22:02,158 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:22:02,655 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:22:08,424 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:22:09,404 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:22:09,404 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 14:22:09,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:09 BoogieIcfgContainer [2022-11-23 14:22:09,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:22:09,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:22:09,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:22:09,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:22:09,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:21:58" (1/3) ... [2022-11-23 14:22:09,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b91e6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:09, skipping insertion in model container [2022-11-23 14:22:09,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:00" (2/3) ... [2022-11-23 14:22:09,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b91e6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:09, skipping insertion in model container [2022-11-23 14:22:09,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:09" (3/3) ... [2022-11-23 14:22:09,423 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-11-23 14:22:09,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:22:09,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:22:09,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:22:09,550 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;@34f54a27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:22:09,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:22:09,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 873 states, 536 states have (on average 1.3507462686567164) internal successors, (724), 558 states have internal predecessors, (724), 274 states have call successors, (274), 62 states have call predecessors, (274), 61 states have return successors, (267), 266 states have call predecessors, (267), 267 states have call successors, (267) [2022-11-23 14:22:09,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 14:22:09,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:09,572 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:09,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:09,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:09,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1960530273, now seen corresponding path program 1 times [2022-11-23 14:22:09,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:09,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830896511] [2022-11-23 14:22:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:09,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-23 14:22:10,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:10,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830896511] [2022-11-23 14:22:10,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830896511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:10,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:10,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:22:10,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904246349] [2022-11-23 14:22:10,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:10,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:22:10,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:10,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:22:10,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:10,452 INFO L87 Difference]: Start difference. First operand has 873 states, 536 states have (on average 1.3507462686567164) internal successors, (724), 558 states have internal predecessors, (724), 274 states have call successors, (274), 62 states have call predecessors, (274), 61 states have return successors, (267), 266 states have call predecessors, (267), 267 states have call successors, (267) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-23 14:22:13,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:22:15,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:15,752 INFO L93 Difference]: Finished difference Result 2514 states and 3733 transitions. [2022-11-23 14:22:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:22:15,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 69 [2022-11-23 14:22:15,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:15,792 INFO L225 Difference]: With dead ends: 2514 [2022-11-23 14:22:15,792 INFO L226 Difference]: Without dead ends: 1642 [2022-11-23 14:22:15,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:15,804 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 1149 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:15,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 2470 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 14:22:15,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2022-11-23 14:22:15,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1628. [2022-11-23 14:22:15,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1008 states have (on average 1.3303571428571428) internal successors, (1341), 1029 states have internal predecessors, (1341), 500 states have call successors, (500), 120 states have call predecessors, (500), 119 states have return successors, (493), 490 states have call predecessors, (493), 493 states have call successors, (493) [2022-11-23 14:22:15,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2334 transitions. [2022-11-23 14:22:15,981 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2334 transitions. Word has length 69 [2022-11-23 14:22:15,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:15,985 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2334 transitions. [2022-11-23 14:22:15,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-23 14:22:15,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2334 transitions. [2022-11-23 14:22:15,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 14:22:15,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:15,996 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:15,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:22:15,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:15,997 INFO L85 PathProgramCache]: Analyzing trace with hash 161731823, now seen corresponding path program 1 times [2022-11-23 14:22:15,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:15,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586474015] [2022-11-23 14:22:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:15,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:16,505 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-23 14:22:16,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:16,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586474015] [2022-11-23 14:22:16,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586474015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:16,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:16,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:22:16,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020601379] [2022-11-23 14:22:16,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:16,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:22:16,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:16,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:22:16,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:16,514 INFO L87 Difference]: Start difference. First operand 1628 states and 2334 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-23 14:22:20,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:22:22,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:22,264 INFO L93 Difference]: Finished difference Result 4802 states and 6878 transitions. [2022-11-23 14:22:22,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:22:22,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 68 [2022-11-23 14:22:22,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:22,292 INFO L225 Difference]: With dead ends: 4802 [2022-11-23 14:22:22,293 INFO L226 Difference]: Without dead ends: 3194 [2022-11-23 14:22:22,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:22,302 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 1164 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:22,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 2461 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-23 14:22:22,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2022-11-23 14:22:22,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 3188. [2022-11-23 14:22:22,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 1981 states have (on average 1.3296314992428067) internal successors, (2634), 2016 states have internal predecessors, (2634), 968 states have call successors, (968), 239 states have call predecessors, (968), 238 states have return successors, (961), 956 states have call predecessors, (961), 961 states have call successors, (961) [2022-11-23 14:22:22,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 4563 transitions. [2022-11-23 14:22:22,519 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 4563 transitions. Word has length 68 [2022-11-23 14:22:22,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:22,520 INFO L495 AbstractCegarLoop]: Abstraction has 3188 states and 4563 transitions. [2022-11-23 14:22:22,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-23 14:22:22,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 4563 transitions. [2022-11-23 14:22:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 14:22:22,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:22,522 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:22,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:22:22,523 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:22,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:22,523 INFO L85 PathProgramCache]: Analyzing trace with hash -444126476, now seen corresponding path program 1 times [2022-11-23 14:22:22,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:22,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122439924] [2022-11-23 14:22:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:22,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:22,795 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-23 14:22:22,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:22,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122439924] [2022-11-23 14:22:22,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122439924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:22,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:22,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:22:22,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457237663] [2022-11-23 14:22:22,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:22,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:22:22,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:22,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:22:22,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:22,798 INFO L87 Difference]: Start difference. First operand 3188 states and 4563 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-23 14:22:25,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:22:26,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:22:29,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:22:30,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:30,161 INFO L93 Difference]: Finished difference Result 7943 states and 11349 transitions. [2022-11-23 14:22:30,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:22:30,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 70 [2022-11-23 14:22:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:30,198 INFO L225 Difference]: With dead ends: 7943 [2022-11-23 14:22:30,198 INFO L226 Difference]: Without dead ends: 4775 [2022-11-23 14:22:30,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:30,212 INFO L413 NwaCegarLoop]: 1256 mSDtfsCounter, 649 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:30,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 2328 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-23 14:22:30,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2022-11-23 14:22:30,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4760. [2022-11-23 14:22:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4760 states, 3009 states have (on average 1.3429710867397806) internal successors, (4041), 3044 states have internal predecessors, (4041), 1381 states have call successors, (1381), 370 states have call predecessors, (1381), 369 states have return successors, (1374), 1369 states have call predecessors, (1374), 1374 states have call successors, (1374) [2022-11-23 14:22:30,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4760 states to 4760 states and 6796 transitions. [2022-11-23 14:22:30,447 INFO L78 Accepts]: Start accepts. Automaton has 4760 states and 6796 transitions. Word has length 70 [2022-11-23 14:22:30,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:30,448 INFO L495 AbstractCegarLoop]: Abstraction has 4760 states and 6796 transitions. [2022-11-23 14:22:30,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-23 14:22:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4760 states and 6796 transitions. [2022-11-23 14:22:30,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:22:30,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:30,450 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:30,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:22:30,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:30,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:30,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1593217549, now seen corresponding path program 1 times [2022-11-23 14:22:30,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:30,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515991425] [2022-11-23 14:22:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:30,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:30,816 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-23 14:22:30,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:30,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515991425] [2022-11-23 14:22:30,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515991425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:30,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:30,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:22:30,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038025759] [2022-11-23 14:22:30,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:30,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:22:30,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:30,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:22:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:30,821 INFO L87 Difference]: Start difference. First operand 4760 states and 6796 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-23 14:22:33,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:22:36,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:36,805 INFO L93 Difference]: Finished difference Result 13525 states and 19271 transitions. [2022-11-23 14:22:36,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:22:36,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 75 [2022-11-23 14:22:36,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:36,864 INFO L225 Difference]: With dead ends: 13525 [2022-11-23 14:22:36,864 INFO L226 Difference]: Without dead ends: 8791 [2022-11-23 14:22:36,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:36,886 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 1135 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:36,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 2598 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 296 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-23 14:22:36,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8791 states. [2022-11-23 14:22:37,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8791 to 8778. [2022-11-23 14:22:37,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8778 states, 5561 states have (on average 1.340586225499011) internal successors, (7455), 5624 states have internal predecessors, (7455), 2521 states have call successors, (2521), 696 states have call predecessors, (2521), 695 states have return successors, (2514), 2505 states have call predecessors, (2514), 2514 states have call successors, (2514) [2022-11-23 14:22:37,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8778 states to 8778 states and 12490 transitions. [2022-11-23 14:22:37,393 INFO L78 Accepts]: Start accepts. Automaton has 8778 states and 12490 transitions. Word has length 75 [2022-11-23 14:22:37,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:37,394 INFO L495 AbstractCegarLoop]: Abstraction has 8778 states and 12490 transitions. [2022-11-23 14:22:37,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-23 14:22:37,395 INFO L276 IsEmpty]: Start isEmpty. Operand 8778 states and 12490 transitions. [2022-11-23 14:22:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-23 14:22:37,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:37,397 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:37,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:22:37,397 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:37,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash 2007003599, now seen corresponding path program 1 times [2022-11-23 14:22:37,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:37,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267658682] [2022-11-23 14:22:37,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:37,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-23 14:22:37,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:37,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267658682] [2022-11-23 14:22:37,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267658682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:37,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:37,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:22:37,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518616698] [2022-11-23 14:22:37,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:37,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:22:37,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:37,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:22:37,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:37,703 INFO L87 Difference]: Start difference. First operand 8778 states and 12490 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:22:40,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:22:42,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:42,671 INFO L93 Difference]: Finished difference Result 9778 states and 13575 transitions. [2022-11-23 14:22:42,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:22:42,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 76 [2022-11-23 14:22:42,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:42,735 INFO L225 Difference]: With dead ends: 9778 [2022-11-23 14:22:42,735 INFO L226 Difference]: Without dead ends: 9774 [2022-11-23 14:22:42,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:42,742 INFO L413 NwaCegarLoop]: 1147 mSDtfsCounter, 736 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:42,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1678 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-23 14:22:42,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2022-11-23 14:22:43,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 9770. [2022-11-23 14:22:43,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9770 states, 6140 states have (on average 1.3245928338762214) internal successors, (8133), 6201 states have internal predecessors, (8133), 2713 states have call successors, (2713), 917 states have call predecessors, (2713), 916 states have return successors, (2708), 2699 states have call predecessors, (2708), 2708 states have call successors, (2708) [2022-11-23 14:22:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9770 states to 9770 states and 13554 transitions. [2022-11-23 14:22:43,289 INFO L78 Accepts]: Start accepts. Automaton has 9770 states and 13554 transitions. Word has length 76 [2022-11-23 14:22:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:43,290 INFO L495 AbstractCegarLoop]: Abstraction has 9770 states and 13554 transitions. [2022-11-23 14:22:43,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:22:43,290 INFO L276 IsEmpty]: Start isEmpty. Operand 9770 states and 13554 transitions. [2022-11-23 14:22:43,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 14:22:43,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:43,292 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:43,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:22:43,293 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:43,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:43,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2087044212, now seen corresponding path program 1 times [2022-11-23 14:22:43,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:43,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840501621] [2022-11-23 14:22:43,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:43,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-23 14:22:43,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:43,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840501621] [2022-11-23 14:22:43,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840501621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:43,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:43,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:22:43,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947181058] [2022-11-23 14:22:43,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:43,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:22:43,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:43,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:22:43,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:43,675 INFO L87 Difference]: Start difference. First operand 9770 states and 13554 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:22:46,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:22:50,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:50,333 INFO L93 Difference]: Finished difference Result 23866 states and 33016 transitions. [2022-11-23 14:22:50,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:22:50,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2022-11-23 14:22:50,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:50,401 INFO L225 Difference]: With dead ends: 23866 [2022-11-23 14:22:50,401 INFO L226 Difference]: Without dead ends: 14124 [2022-11-23 14:22:50,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:50,436 INFO L413 NwaCegarLoop]: 1268 mSDtfsCounter, 692 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:50,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 2248 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-23 14:22:50,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14124 states. [2022-11-23 14:22:51,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14124 to 14006. [2022-11-23 14:22:51,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14006 states, 8923 states have (on average 1.3299338787403339) internal successors, (11867), 9115 states have internal predecessors, (11867), 3687 states have call successors, (3687), 1435 states have call predecessors, (3687), 1395 states have return successors, (3744), 3519 states have call predecessors, (3744), 3680 states have call successors, (3744) [2022-11-23 14:22:51,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14006 states to 14006 states and 19298 transitions. [2022-11-23 14:22:51,174 INFO L78 Accepts]: Start accepts. Automaton has 14006 states and 19298 transitions. Word has length 77 [2022-11-23 14:22:51,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:51,176 INFO L495 AbstractCegarLoop]: Abstraction has 14006 states and 19298 transitions. [2022-11-23 14:22:51,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:22:51,176 INFO L276 IsEmpty]: Start isEmpty. Operand 14006 states and 19298 transitions. [2022-11-23 14:22:51,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-23 14:22:51,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:51,183 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:51,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:22:51,184 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:51,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:51,184 INFO L85 PathProgramCache]: Analyzing trace with hash 273340786, now seen corresponding path program 1 times [2022-11-23 14:22:51,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:51,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047346276] [2022-11-23 14:22:51,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:51,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:51,493 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-23 14:22:51,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:51,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047346276] [2022-11-23 14:22:51,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047346276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:51,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:51,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:22:51,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672509126] [2022-11-23 14:22:51,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:51,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:22:51,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:51,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:22:51,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:51,497 INFO L87 Difference]: Start difference. First operand 14006 states and 19298 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:22:52,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:22:54,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:54,440 INFO L93 Difference]: Finished difference Result 14008 states and 19299 transitions. [2022-11-23 14:22:54,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:22:54,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2022-11-23 14:22:54,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:54,518 INFO L225 Difference]: With dead ends: 14008 [2022-11-23 14:22:54,518 INFO L226 Difference]: Without dead ends: 14001 [2022-11-23 14:22:54,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:54,526 INFO L413 NwaCegarLoop]: 1113 mSDtfsCounter, 1189 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:54,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1145 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-23 14:22:54,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14001 states. [2022-11-23 14:22:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14001 to 14001. [2022-11-23 14:22:55,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14001 states, 8919 states have (on average 1.3286242852337706) internal successors, (11850), 9110 states have internal predecessors, (11850), 3686 states have call successors, (3686), 1435 states have call predecessors, (3686), 1395 states have return successors, (3744), 3519 states have call predecessors, (3744), 3680 states have call successors, (3744) [2022-11-23 14:22:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14001 states to 14001 states and 19280 transitions. [2022-11-23 14:22:55,327 INFO L78 Accepts]: Start accepts. Automaton has 14001 states and 19280 transitions. Word has length 78 [2022-11-23 14:22:55,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:55,327 INFO L495 AbstractCegarLoop]: Abstraction has 14001 states and 19280 transitions. [2022-11-23 14:22:55,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:22:55,328 INFO L276 IsEmpty]: Start isEmpty. Operand 14001 states and 19280 transitions. [2022-11-23 14:22:55,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-23 14:22:55,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:55,331 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:55,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:22:55,331 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:55,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:55,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1399171177, now seen corresponding path program 1 times [2022-11-23 14:22:55,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:55,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005928499] [2022-11-23 14:22:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:55,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:55,702 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-23 14:22:55,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:55,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005928499] [2022-11-23 14:22:55,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005928499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:55,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:55,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:22:55,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455415777] [2022-11-23 14:22:55,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:55,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:22:55,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:22:55,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:55,705 INFO L87 Difference]: Start difference. First operand 14001 states and 19280 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:22:58,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:02,853 INFO L93 Difference]: Finished difference Result 40901 states and 56138 transitions. [2022-11-23 14:23:02,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:02,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2022-11-23 14:23:02,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:02,967 INFO L225 Difference]: With dead ends: 40901 [2022-11-23 14:23:02,967 INFO L226 Difference]: Without dead ends: 26928 [2022-11-23 14:23:03,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:03,013 INFO L413 NwaCegarLoop]: 1567 mSDtfsCounter, 1130 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 2638 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:03,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 2638 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 287 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-23 14:23:03,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26928 states. [2022-11-23 14:23:04,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26928 to 26901. [2022-11-23 14:23:04,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26901 states, 17099 states have (on average 1.3248727995789227) internal successors, (22654), 17448 states have internal predecessors, (22654), 7030 states have call successors, (7030), 2849 states have call predecessors, (7030), 2771 states have return successors, (7152), 6731 states have call predecessors, (7152), 7024 states have call successors, (7152) [2022-11-23 14:23:04,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26901 states to 26901 states and 36836 transitions. [2022-11-23 14:23:04,848 INFO L78 Accepts]: Start accepts. Automaton has 26901 states and 36836 transitions. Word has length 93 [2022-11-23 14:23:04,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:04,849 INFO L495 AbstractCegarLoop]: Abstraction has 26901 states and 36836 transitions. [2022-11-23 14:23:04,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:23:04,849 INFO L276 IsEmpty]: Start isEmpty. Operand 26901 states and 36836 transitions. [2022-11-23 14:23:04,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-23 14:23:04,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:04,852 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:04,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:23:04,852 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:04,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:04,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1277239613, now seen corresponding path program 1 times [2022-11-23 14:23:04,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:04,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353714584] [2022-11-23 14:23:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:04,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-23 14:23:05,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:05,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353714584] [2022-11-23 14:23:05,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353714584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:05,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:05,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:05,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151971196] [2022-11-23 14:23:05,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:05,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:05,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:05,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:05,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:05,084 INFO L87 Difference]: Start difference. First operand 26901 states and 36836 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:23:08,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:11,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:11,881 INFO L93 Difference]: Finished difference Result 78057 states and 106386 transitions. [2022-11-23 14:23:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:11,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92 [2022-11-23 14:23:11,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:12,120 INFO L225 Difference]: With dead ends: 78057 [2022-11-23 14:23:12,120 INFO L226 Difference]: Without dead ends: 51184 [2022-11-23 14:23:12,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:12,202 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 1126 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:12,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 2677 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 282 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-23 14:23:12,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51184 states. [2022-11-23 14:23:15,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51184 to 51157. [2022-11-23 14:23:15,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51157 states, 32297 states have (on average 1.314239712666811) internal successors, (42446), 32934 states have internal predecessors, (42446), 13400 states have call successors, (13400), 5609 states have call predecessors, (13400), 5459 states have return successors, (13650), 12869 states have call predecessors, (13650), 13394 states have call successors, (13650) [2022-11-23 14:23:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51157 states to 51157 states and 69496 transitions. [2022-11-23 14:23:15,410 INFO L78 Accepts]: Start accepts. Automaton has 51157 states and 69496 transitions. Word has length 92 [2022-11-23 14:23:15,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:15,410 INFO L495 AbstractCegarLoop]: Abstraction has 51157 states and 69496 transitions. [2022-11-23 14:23:15,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:23:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand 51157 states and 69496 transitions. [2022-11-23 14:23:15,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-23 14:23:15,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:15,416 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:15,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:23:15,416 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:15,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:15,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1338113259, now seen corresponding path program 1 times [2022-11-23 14:23:15,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:15,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208118588] [2022-11-23 14:23:15,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:15,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-11-23 14:23:15,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:15,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208118588] [2022-11-23 14:23:15,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208118588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:15,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:15,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:15,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572325086] [2022-11-23 14:23:15,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:15,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:15,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:15,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:15,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:15,700 INFO L87 Difference]: Start difference. First operand 51157 states and 69496 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 14:23:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:20,420 INFO L93 Difference]: Finished difference Result 77127 states and 104786 transitions. [2022-11-23 14:23:20,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:20,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 143 [2022-11-23 14:23:20,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:20,529 INFO L225 Difference]: With dead ends: 77127 [2022-11-23 14:23:20,529 INFO L226 Difference]: Without dead ends: 25998 [2022-11-23 14:23:20,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:20,633 INFO L413 NwaCegarLoop]: 1104 mSDtfsCounter, 1227 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:20,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 1109 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 14:23:20,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25998 states. [2022-11-23 14:23:21,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25998 to 25800. [2022-11-23 14:23:21,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25800 states, 16286 states have (on average 1.316775144295714) internal successors, (21445), 16613 states have internal predecessors, (21445), 6754 states have call successors, (6754), 2835 states have call predecessors, (6754), 2759 states have return successors, (6876), 6479 states have call predecessors, (6876), 6748 states have call successors, (6876) [2022-11-23 14:23:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25800 states to 25800 states and 35075 transitions. [2022-11-23 14:23:21,867 INFO L78 Accepts]: Start accepts. Automaton has 25800 states and 35075 transitions. Word has length 143 [2022-11-23 14:23:21,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:21,867 INFO L495 AbstractCegarLoop]: Abstraction has 25800 states and 35075 transitions. [2022-11-23 14:23:21,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 14:23:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand 25800 states and 35075 transitions. [2022-11-23 14:23:21,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-23 14:23:21,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:21,873 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:21,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:23:21,874 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:21,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:21,875 INFO L85 PathProgramCache]: Analyzing trace with hash -312407759, now seen corresponding path program 1 times [2022-11-23 14:23:21,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:21,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653359200] [2022-11-23 14:23:21,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:21,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2022-11-23 14:23:22,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:22,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653359200] [2022-11-23 14:23:22,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653359200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:22,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:22,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:22,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792079439] [2022-11-23 14:23:22,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:22,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:22,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:22,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:22,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:22,483 INFO L87 Difference]: Start difference. First operand 25800 states and 35075 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:23:25,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:28,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:28,131 INFO L93 Difference]: Finished difference Result 51678 states and 70247 transitions. [2022-11-23 14:23:28,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:28,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2022-11-23 14:23:28,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:28,226 INFO L225 Difference]: With dead ends: 51678 [2022-11-23 14:23:28,227 INFO L226 Difference]: Without dead ends: 25953 [2022-11-23 14:23:28,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:28,292 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 1047 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:28,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 2222 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 252 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 14:23:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25953 states. [2022-11-23 14:23:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25953 to 25580. [2022-11-23 14:23:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25580 states, 16223 states have (on average 1.3125809036553042) internal successors, (21294), 16443 states have internal predecessors, (21294), 6592 states have call successors, (6592), 2785 states have call predecessors, (6592), 2764 states have return successors, (6545), 6479 states have call predecessors, (6545), 6543 states have call successors, (6545) [2022-11-23 14:23:29,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25580 states to 25580 states and 34431 transitions. [2022-11-23 14:23:29,700 INFO L78 Accepts]: Start accepts. Automaton has 25580 states and 34431 transitions. Word has length 145 [2022-11-23 14:23:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:29,701 INFO L495 AbstractCegarLoop]: Abstraction has 25580 states and 34431 transitions. [2022-11-23 14:23:29,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:23:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 25580 states and 34431 transitions. [2022-11-23 14:23:29,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-23 14:23:29,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:29,716 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:29,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:23:29,717 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:29,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:29,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1033289347, now seen corresponding path program 1 times [2022-11-23 14:23:29,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:29,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636490788] [2022-11-23 14:23:29,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:29,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:30,223 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2022-11-23 14:23:30,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:30,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636490788] [2022-11-23 14:23:30,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636490788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:30,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:30,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:30,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095842268] [2022-11-23 14:23:30,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:30,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:30,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:30,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:30,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:30,226 INFO L87 Difference]: Start difference. First operand 25580 states and 34431 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:23:32,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:35,954 INFO L93 Difference]: Finished difference Result 25590 states and 34439 transitions. [2022-11-23 14:23:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:35,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2022-11-23 14:23:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:36,046 INFO L225 Difference]: With dead ends: 25590 [2022-11-23 14:23:36,046 INFO L226 Difference]: Without dead ends: 25587 [2022-11-23 14:23:36,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:36,058 INFO L413 NwaCegarLoop]: 1189 mSDtfsCounter, 569 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:36,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1888 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-23 14:23:36,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25587 states. [2022-11-23 14:23:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25587 to 25579. [2022-11-23 14:23:37,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25579 states, 16223 states have (on average 1.309129014362325) internal successors, (21238), 16442 states have internal predecessors, (21238), 6591 states have call successors, (6591), 2785 states have call predecessors, (6591), 2764 states have return successors, (6545), 6479 states have call predecessors, (6545), 6543 states have call successors, (6545) [2022-11-23 14:23:37,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25579 states to 25579 states and 34374 transitions. [2022-11-23 14:23:37,349 INFO L78 Accepts]: Start accepts. Automaton has 25579 states and 34374 transitions. Word has length 153 [2022-11-23 14:23:37,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:37,350 INFO L495 AbstractCegarLoop]: Abstraction has 25579 states and 34374 transitions. [2022-11-23 14:23:37,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:23:37,350 INFO L276 IsEmpty]: Start isEmpty. Operand 25579 states and 34374 transitions. [2022-11-23 14:23:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-23 14:23:37,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:37,377 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:37,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 14:23:37,377 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:37,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:37,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1264144290, now seen corresponding path program 1 times [2022-11-23 14:23:37,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:37,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577536195] [2022-11-23 14:23:37,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:37,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:37,875 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-11-23 14:23:37,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:37,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577536195] [2022-11-23 14:23:37,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577536195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:37,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:37,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:37,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798881755] [2022-11-23 14:23:37,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:37,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:37,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:37,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:37,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:37,878 INFO L87 Difference]: Start difference. First operand 25579 states and 34374 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-23 14:23:40,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:41,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:47,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:47,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:47,166 INFO L93 Difference]: Finished difference Result 61956 states and 86042 transitions. [2022-11-23 14:23:47,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:47,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 166 [2022-11-23 14:23:47,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:47,277 INFO L225 Difference]: With dead ends: 61956 [2022-11-23 14:23:47,278 INFO L226 Difference]: Without dead ends: 36452 [2022-11-23 14:23:47,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:47,333 INFO L413 NwaCegarLoop]: 1740 mSDtfsCounter, 399 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:47,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 2980 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-23 14:23:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36452 states. [2022-11-23 14:23:48,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36452 to 25597. [2022-11-23 14:23:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25597 states, 16241 states have (on average 1.3087864047780309) internal successors, (21256), 16460 states have internal predecessors, (21256), 6591 states have call successors, (6591), 2785 states have call predecessors, (6591), 2764 states have return successors, (6545), 6479 states have call predecessors, (6545), 6543 states have call successors, (6545) [2022-11-23 14:23:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25597 states to 25597 states and 34392 transitions. [2022-11-23 14:23:48,833 INFO L78 Accepts]: Start accepts. Automaton has 25597 states and 34392 transitions. Word has length 166 [2022-11-23 14:23:48,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:48,834 INFO L495 AbstractCegarLoop]: Abstraction has 25597 states and 34392 transitions. [2022-11-23 14:23:48,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-23 14:23:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 25597 states and 34392 transitions. [2022-11-23 14:23:48,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-23 14:23:48,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:48,880 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:48,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 14:23:48,881 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:48,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:48,881 INFO L85 PathProgramCache]: Analyzing trace with hash -122152200, now seen corresponding path program 1 times [2022-11-23 14:23:48,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:48,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838723448] [2022-11-23 14:23:48,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:48,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-11-23 14:23:49,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:49,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838723448] [2022-11-23 14:23:49,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838723448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:49,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:49,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:49,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660079532] [2022-11-23 14:23:49,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:49,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:49,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:49,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:49,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:49,768 INFO L87 Difference]: Start difference. First operand 25597 states and 34392 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:23:53,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:53,810 INFO L93 Difference]: Finished difference Result 25602 states and 34395 transitions. [2022-11-23 14:23:53,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:53,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 187 [2022-11-23 14:23:53,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:53,878 INFO L225 Difference]: With dead ends: 25602 [2022-11-23 14:23:53,878 INFO L226 Difference]: Without dead ends: 25599 [2022-11-23 14:23:53,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:53,888 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 1025 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:53,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 2177 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-23 14:23:53,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25599 states. [2022-11-23 14:23:54,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25599 to 25583. [2022-11-23 14:23:54,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25583 states, 16231 states have (on average 1.3088534286242375) internal successors, (21244), 16448 states have internal predecessors, (21244), 6587 states have call successors, (6587), 2783 states have call predecessors, (6587), 2764 states have return successors, (6541), 6479 states have call predecessors, (6541), 6539 states have call successors, (6541) [2022-11-23 14:23:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25583 states to 25583 states and 34372 transitions. [2022-11-23 14:23:55,036 INFO L78 Accepts]: Start accepts. Automaton has 25583 states and 34372 transitions. Word has length 187 [2022-11-23 14:23:55,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:55,037 INFO L495 AbstractCegarLoop]: Abstraction has 25583 states and 34372 transitions. [2022-11-23 14:23:55,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:23:55,038 INFO L276 IsEmpty]: Start isEmpty. Operand 25583 states and 34372 transitions. [2022-11-23 14:23:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-23 14:23:55,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:55,086 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:55,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 14:23:55,087 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:55,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:55,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1448525472, now seen corresponding path program 1 times [2022-11-23 14:23:55,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:55,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366813524] [2022-11-23 14:23:55,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:55,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-11-23 14:23:55,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:55,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366813524] [2022-11-23 14:23:55,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366813524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:55,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:55,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:55,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364390613] [2022-11-23 14:23:55,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:55,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:55,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:55,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:55,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:55,967 INFO L87 Difference]: Start difference. First operand 25583 states and 34372 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 14:23:58,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:59,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:06,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:08,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:08,366 INFO L93 Difference]: Finished difference Result 68079 states and 95897 transitions. [2022-11-23 14:24:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:24:08,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2022-11-23 14:24:08,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:08,474 INFO L225 Difference]: With dead ends: 68079 [2022-11-23 14:24:08,474 INFO L226 Difference]: Without dead ends: 42571 [2022-11-23 14:24:08,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:08,523 INFO L413 NwaCegarLoop]: 1732 mSDtfsCounter, 982 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 211 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:08,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 4339 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-11-23 14:24:08,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42571 states. [2022-11-23 14:24:10,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42571 to 25615. [2022-11-23 14:24:10,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25615 states, 16263 states have (on average 1.307261882801451) internal successors, (21260), 16480 states have internal predecessors, (21260), 6587 states have call successors, (6587), 2783 states have call predecessors, (6587), 2764 states have return successors, (6541), 6479 states have call predecessors, (6541), 6539 states have call successors, (6541) [2022-11-23 14:24:10,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25615 states to 25615 states and 34388 transitions. [2022-11-23 14:24:10,147 INFO L78 Accepts]: Start accepts. Automaton has 25615 states and 34388 transitions. Word has length 203 [2022-11-23 14:24:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:10,148 INFO L495 AbstractCegarLoop]: Abstraction has 25615 states and 34388 transitions. [2022-11-23 14:24:10,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 14:24:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 25615 states and 34388 transitions. [2022-11-23 14:24:10,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-23 14:24:10,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:10,190 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:10,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 14:24:10,190 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:24:10,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:10,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1835573694, now seen corresponding path program 1 times [2022-11-23 14:24:10,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:10,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892095115] [2022-11-23 14:24:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:10,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:10,696 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-11-23 14:24:10,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:10,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892095115] [2022-11-23 14:24:10,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892095115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:10,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:10,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:24:10,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526399937] [2022-11-23 14:24:10,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:10,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:24:10,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:10,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:24:10,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:24:10,702 INFO L87 Difference]: Start difference. First operand 25615 states and 34388 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-23 14:24:14,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:17,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:18,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:18,663 INFO L93 Difference]: Finished difference Result 58683 states and 80767 transitions. [2022-11-23 14:24:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:24:18,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 207 [2022-11-23 14:24:18,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:18,778 INFO L225 Difference]: With dead ends: 58683 [2022-11-23 14:24:18,778 INFO L226 Difference]: Without dead ends: 33143 [2022-11-23 14:24:18,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:24:18,834 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 350 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:18,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 2563 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-23 14:24:18,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33143 states. [2022-11-23 14:24:20,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33143 to 25647. [2022-11-23 14:24:20,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25647 states, 16279 states have (on average 1.305977025615824) internal successors, (21260), 16496 states have internal predecessors, (21260), 6603 states have call successors, (6603), 2783 states have call predecessors, (6603), 2764 states have return successors, (6557), 6495 states have call predecessors, (6557), 6555 states have call successors, (6557) [2022-11-23 14:24:20,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25647 states to 25647 states and 34420 transitions. [2022-11-23 14:24:20,360 INFO L78 Accepts]: Start accepts. Automaton has 25647 states and 34420 transitions. Word has length 207 [2022-11-23 14:24:20,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:20,361 INFO L495 AbstractCegarLoop]: Abstraction has 25647 states and 34420 transitions. [2022-11-23 14:24:20,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-23 14:24:20,361 INFO L276 IsEmpty]: Start isEmpty. Operand 25647 states and 34420 transitions. [2022-11-23 14:24:20,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-23 14:24:20,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:20,416 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:20,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 14:24:20,416 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:24:20,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:20,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1629770101, now seen corresponding path program 1 times [2022-11-23 14:24:20,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:20,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802829852] [2022-11-23 14:24:20,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:20,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:21,570 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-11-23 14:24:21,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:21,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802829852] [2022-11-23 14:24:21,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802829852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:21,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:21,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:21,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311980998] [2022-11-23 14:24:21,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:21,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:21,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:21,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:21,574 INFO L87 Difference]: Start difference. First operand 25647 states and 34420 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-23 14:24:25,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:27,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:29,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:35,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:37,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:37,166 INFO L93 Difference]: Finished difference Result 67241 states and 94493 transitions. [2022-11-23 14:24:37,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:24:37,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 210 [2022-11-23 14:24:37,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:37,311 INFO L225 Difference]: With dead ends: 67241 [2022-11-23 14:24:37,311 INFO L226 Difference]: Without dead ends: 41669 [2022-11-23 14:24:37,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:37,374 INFO L413 NwaCegarLoop]: 1699 mSDtfsCounter, 962 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 191 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:37,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 4288 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 455 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-11-23 14:24:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41669 states. [2022-11-23 14:24:39,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41669 to 25380. [2022-11-23 14:24:39,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25380 states, 16144 states have (on average 1.3055004955401388) internal successors, (21076), 16345 states have internal predecessors, (21076), 6520 states have call successors, (6520), 2734 states have call predecessors, (6520), 2715 states have return successors, (6475), 6428 states have call predecessors, (6475), 6473 states have call successors, (6475) [2022-11-23 14:24:39,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25380 states to 25380 states and 34071 transitions. [2022-11-23 14:24:39,275 INFO L78 Accepts]: Start accepts. Automaton has 25380 states and 34071 transitions. Word has length 210 [2022-11-23 14:24:39,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:39,276 INFO L495 AbstractCegarLoop]: Abstraction has 25380 states and 34071 transitions. [2022-11-23 14:24:39,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-23 14:24:39,276 INFO L276 IsEmpty]: Start isEmpty. Operand 25380 states and 34071 transitions. [2022-11-23 14:24:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-23 14:24:39,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:39,327 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:39,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 14:24:39,328 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:24:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:39,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1596661132, now seen corresponding path program 1 times [2022-11-23 14:24:39,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:39,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558813483] [2022-11-23 14:24:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:39,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:41,043 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2022-11-23 14:24:41,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:41,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558813483] [2022-11-23 14:24:41,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558813483] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:24:41,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171520720] [2022-11-23 14:24:41,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:41,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:41,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:41,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:41,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:24:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:42,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 4961 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:24:42,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-11-23 14:24:42,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:24:42,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171520720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:42,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:24:42,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-23 14:24:42,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758927954] [2022-11-23 14:24:42,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:42,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:24:42,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:42,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:24:42,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:24:42,619 INFO L87 Difference]: Start difference. First operand 25380 states and 34071 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-23 14:24:46,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:50,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:50,277 INFO L93 Difference]: Finished difference Result 50861 states and 68363 transitions. [2022-11-23 14:24:50,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:24:50,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 263 [2022-11-23 14:24:50,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:50,345 INFO L225 Difference]: With dead ends: 50861 [2022-11-23 14:24:50,346 INFO L226 Difference]: Without dead ends: 25556 [2022-11-23 14:24:50,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:24:50,403 INFO L413 NwaCegarLoop]: 1106 mSDtfsCounter, 11 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:50,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2202 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 14:24:50,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25556 states. [2022-11-23 14:24:52,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25556 to 25492. [2022-11-23 14:24:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25492 states, 16240 states have (on average 1.3066502463054188) internal successors, (21220), 16441 states have internal predecessors, (21220), 6536 states have call successors, (6536), 2734 states have call predecessors, (6536), 2715 states have return successors, (6491), 6444 states have call predecessors, (6491), 6489 states have call successors, (6491) [2022-11-23 14:24:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25492 states to 25492 states and 34247 transitions. [2022-11-23 14:24:52,275 INFO L78 Accepts]: Start accepts. Automaton has 25492 states and 34247 transitions. Word has length 263 [2022-11-23 14:24:52,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:52,276 INFO L495 AbstractCegarLoop]: Abstraction has 25492 states and 34247 transitions. [2022-11-23 14:24:52,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-23 14:24:52,276 INFO L276 IsEmpty]: Start isEmpty. Operand 25492 states and 34247 transitions. [2022-11-23 14:24:52,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-23 14:24:52,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:52,308 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:52,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:24:52,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 14:24:52,509 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:24:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:52,510 INFO L85 PathProgramCache]: Analyzing trace with hash 531596085, now seen corresponding path program 1 times [2022-11-23 14:24:52,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:52,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091691471] [2022-11-23 14:24:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:52,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2022-11-23 14:24:54,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:54,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091691471] [2022-11-23 14:24:54,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091691471] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:24:54,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740093425] [2022-11-23 14:24:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:54,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:54,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:54,193 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:54,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:24:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:55,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 5051 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 14:24:55,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:55,908 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-11-23 14:24:55,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:24:55,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740093425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:55,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:24:55,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2022-11-23 14:24:55,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369940575] [2022-11-23 14:24:55,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:55,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:24:55,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:55,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:24:55,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:24:55,912 INFO L87 Difference]: Start difference. First operand 25492 states and 34247 transitions. Second operand has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-23 14:25:00,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:04,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:06,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:08,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:16,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:18,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:26,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:26,654 INFO L93 Difference]: Finished difference Result 61449 states and 85130 transitions. [2022-11-23 14:25:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:25:26,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 267 [2022-11-23 14:25:26,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:26,737 INFO L225 Difference]: With dead ends: 61449 [2022-11-23 14:25:26,737 INFO L226 Difference]: Without dead ends: 36032 [2022-11-23 14:25:26,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:25:26,775 INFO L413 NwaCegarLoop]: 1678 mSDtfsCounter, 418 mSDsluCounter, 9498 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 11176 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:26,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 11176 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1242 Invalid, 3 Unknown, 0 Unchecked, 28.1s Time] [2022-11-23 14:25:26,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36032 states. [2022-11-23 14:25:28,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36032 to 25908. [2022-11-23 14:25:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25908 states, 16576 states have (on average 1.3091216216216217) internal successors, (21700), 16777 states have internal predecessors, (21700), 6600 states have call successors, (6600), 2734 states have call predecessors, (6600), 2731 states have return successors, (6587), 6524 states have call predecessors, (6587), 6553 states have call successors, (6587) [2022-11-23 14:25:28,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25908 states to 25908 states and 34887 transitions. [2022-11-23 14:25:28,784 INFO L78 Accepts]: Start accepts. Automaton has 25908 states and 34887 transitions. Word has length 267 [2022-11-23 14:25:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:28,784 INFO L495 AbstractCegarLoop]: Abstraction has 25908 states and 34887 transitions. [2022-11-23 14:25:28,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-23 14:25:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 25908 states and 34887 transitions. [2022-11-23 14:25:28,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-23 14:25:28,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:28,816 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:28,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:25:29,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:29,017 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:29,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:29,018 INFO L85 PathProgramCache]: Analyzing trace with hash -2005142407, now seen corresponding path program 1 times [2022-11-23 14:25:29,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:29,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138560943] [2022-11-23 14:25:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:29,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 662 trivial. 0 not checked. [2022-11-23 14:25:30,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:30,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138560943] [2022-11-23 14:25:30,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138560943] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:25:30,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436218277] [2022-11-23 14:25:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:30,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:30,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:30,479 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:25:30,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:25:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:32,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 5158 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-23 14:25:32,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:25:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2022-11-23 14:25:32,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:25:32,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436218277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:32,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:25:32,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2022-11-23 14:25:32,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558007813] [2022-11-23 14:25:32,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:32,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:25:32,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:32,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:25:32,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:25:32,325 INFO L87 Difference]: Start difference. First operand 25908 states and 34887 transitions. Second operand has 7 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-23 14:25:37,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:49,040 INFO L93 Difference]: Finished difference Result 61980 states and 86218 transitions. [2022-11-23 14:25:49,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:25:49,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) Word has length 274 [2022-11-23 14:25:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:49,131 INFO L225 Difference]: With dead ends: 61980 [2022-11-23 14:25:49,131 INFO L226 Difference]: Without dead ends: 36147 [2022-11-23 14:25:49,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:25:49,171 INFO L413 NwaCegarLoop]: 1669 mSDtfsCounter, 366 mSDsluCounter, 7879 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 9548 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:49,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 9548 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 989 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-23 14:25:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36147 states. [2022-11-23 14:25:51,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36147 to 26100. [2022-11-23 14:25:51,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26100 states, 16704 states have (on average 1.3067528735632183) internal successors, (21828), 16905 states have internal predecessors, (21828), 6600 states have call successors, (6600), 2734 states have call predecessors, (6600), 2795 states have return successors, (6867), 6588 states have call predecessors, (6867), 6553 states have call successors, (6867) [2022-11-23 14:25:51,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26100 states to 26100 states and 35295 transitions. [2022-11-23 14:25:51,154 INFO L78 Accepts]: Start accepts. Automaton has 26100 states and 35295 transitions. Word has length 274 [2022-11-23 14:25:51,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:51,154 INFO L495 AbstractCegarLoop]: Abstraction has 26100 states and 35295 transitions. [2022-11-23 14:25:51,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-23 14:25:51,155 INFO L276 IsEmpty]: Start isEmpty. Operand 26100 states and 35295 transitions. [2022-11-23 14:25:51,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-23 14:25:51,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:51,193 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:51,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:51,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:51,406 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:51,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:51,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1493709051, now seen corresponding path program 1 times [2022-11-23 14:25:51,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:51,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856554122] [2022-11-23 14:25:51,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:51,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:52,977 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-23 14:25:52,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:52,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856554122] [2022-11-23 14:25:52,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856554122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:52,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:52,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:25:52,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495063948] [2022-11-23 14:25:52,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:52,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:52,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:52,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:52,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:52,980 INFO L87 Difference]: Start difference. First operand 26100 states and 35295 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-23 14:25:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:59,539 INFO L93 Difference]: Finished difference Result 52173 states and 70554 transitions. [2022-11-23 14:25:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:25:59,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 278 [2022-11-23 14:25:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:59,609 INFO L225 Difference]: With dead ends: 52173 [2022-11-23 14:25:59,609 INFO L226 Difference]: Without dead ends: 26101 [2022-11-23 14:25:59,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:59,652 INFO L413 NwaCegarLoop]: 1102 mSDtfsCounter, 0 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:59,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2204 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-23 14:25:59,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26101 states. [2022-11-23 14:26:01,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26101 to 26101. [2022-11-23 14:26:01,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26101 states, 16705 states have (on average 1.3067345106255612) internal successors, (21829), 16906 states have internal predecessors, (21829), 6600 states have call successors, (6600), 2734 states have call predecessors, (6600), 2795 states have return successors, (6867), 6588 states have call predecessors, (6867), 6553 states have call successors, (6867) [2022-11-23 14:26:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26101 states to 26101 states and 35296 transitions. [2022-11-23 14:26:01,547 INFO L78 Accepts]: Start accepts. Automaton has 26101 states and 35296 transitions. Word has length 278 [2022-11-23 14:26:01,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:01,547 INFO L495 AbstractCegarLoop]: Abstraction has 26101 states and 35296 transitions. [2022-11-23 14:26:01,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-23 14:26:01,548 INFO L276 IsEmpty]: Start isEmpty. Operand 26101 states and 35296 transitions. [2022-11-23 14:26:01,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-23 14:26:01,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:01,587 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:01,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 14:26:01,587 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:01,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:01,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1521809964, now seen corresponding path program 1 times [2022-11-23 14:26:01,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:01,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089207448] [2022-11-23 14:26:01,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:01,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-23 14:26:03,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:03,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089207448] [2022-11-23 14:26:03,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089207448] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:26:03,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149093847] [2022-11-23 14:26:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:03,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:03,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:03,243 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:26:03,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdecb606-bc21-40a2-bac7-a6956883b191/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:26:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:05,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 5198 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 14:26:05,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 324 proven. 1 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2022-11-23 14:26:05,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-23 14:26:05,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149093847] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:05,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [81980453] [2022-11-23 14:26:05,938 INFO L159 IcfgInterpreter]: Started Sifa with 175 locations of interest [2022-11-23 14:26:05,938 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:26:05,944 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:26:05,950 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:26:05,950 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:26:16,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:17,460 INFO L217 Elim1Store]: Index analysis took 692 ms [2022-11-23 14:26:50,475 WARN L233 SmtUtils]: Spent 32.90s on a formula simplification. DAG size of input: 2460 DAG size of output: 1603 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:26:50,483 INFO L321 Elim1Store]: treesize reduction 2806, result has 45.9 percent of original size [2022-11-23 14:26:50,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 274 select indices, 274 select index equivalence classes, 37403 disjoint index pairs (out of 37401 index pairs), introduced 274 new quantified variables, introduced 273 case distinctions, treesize of input 1377 treesize of output 3214 [2022-11-23 14:26:57,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:58,423 INFO L217 Elim1Store]: Index analysis took 1486 ms [2022-11-23 14:27:53,711 WARN L233 SmtUtils]: Spent 55.15s on a formula simplification. DAG size of input: 3008 DAG size of output: 1641 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:27:53,715 INFO L321 Elim1Store]: treesize reduction 4914, result has 33.3 percent of original size [2022-11-23 14:27:53,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 276 select indices, 276 select index equivalence classes, 37677 disjoint index pairs (out of 37950 index pairs), introduced 276 new quantified variables, introduced 546 case distinctions, treesize of input 1387 treesize of output 3301 [2022-11-23 14:28:44,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:44,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 275 select indices, 275 select index equivalence classes, 37676 disjoint index pairs (out of 37675 index pairs), introduced 275 new quantified variables, introduced 0 case distinctions, treesize of input 1376 treesize of output 826 [2022-11-23 14:28:46,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:46,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:46,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:46,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:46,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:46,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:46,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:47,894 INFO L217 Elim1Store]: Index analysis took 908 ms [2022-11-23 14:28:48,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 583 select indices, 583 select index equivalence classes, 34598 disjoint index pairs (out of 169653 index pairs), introduced 583 new quantified variables, introduced 0 case distinctions, treesize of input 4748 treesize of output 1750 [2022-11-23 14:28:50,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:28:50,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 276 select indices, 276 select index equivalence classes, 37950 disjoint index pairs (out of 37950 index pairs), introduced 276 new quantified variables, introduced 0 case distinctions, treesize of input 1381 treesize of output 829