./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72620f06cf213625543d30e414a89c2b8e83a12871b1ae1124ef85c707116f4d --- 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-b5237d8 [2022-11-22 01:24:52,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:24:52,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:24:52,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:24:52,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:24:52,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:24:52,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:24:52,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:24:52,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:24:52,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:24:52,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:24:52,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:24:52,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:24:52,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:24:52,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:24:52,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:24:52,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:24:52,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:24:52,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:24:52,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:24:52,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:24:52,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:24:52,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:24:52,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:24:52,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:24:52,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:24:52,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:24:52,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:24:52,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:24:52,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:24:52,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:24:52,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:24:52,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:24:52,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:24:52,432 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:24:52,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:24:52,433 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:24:52,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:24:52,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:24:52,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:24:52,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:24:52,436 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:24:52,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:24:52,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:24:52,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:24:52,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:24:52,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:24:52,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:24:52,480 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:24:52,480 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:24:52,480 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:24:52,481 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:24:52,482 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:24:52,482 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:24:52,482 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:24:52,483 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:24:52,483 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:24:52,483 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:24:52,483 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:24:52,483 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:24:52,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:24:52,485 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:24:52,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:24:52,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:24:52,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:24:52,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:24:52,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:24:52,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:24:52,487 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:24:52,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:24:52,487 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:24:52,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:24:52,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:24:52,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:24:52,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:24:52,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:24:52,489 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:24:52,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:24:52,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:24:52,490 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:24:52,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:24:52,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:24:52,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:24:52,491 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_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72620f06cf213625543d30e414a89c2b8e83a12871b1ae1124ef85c707116f4d [2022-11-22 01:24:52,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:24:52,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:24:52,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:24:52,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:24:52,856 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:24:52,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c [2022-11-22 01:24:56,165 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:24:56,538 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:24:56,539 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/sv-benchmarks/c/eca-rers2012/Problem02_label49.c [2022-11-22 01:24:56,551 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/data/742d120a1/a6755acab15841f2a655b4e0c7350b7d/FLAGddc40ddee [2022-11-22 01:24:56,566 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/data/742d120a1/a6755acab15841f2a655b4e0c7350b7d [2022-11-22 01:24:56,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:24:56,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:24:56,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:24:56,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:24:56,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:24:56,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:24:56" (1/1) ... [2022-11-22 01:24:56,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f351bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:56, skipping insertion in model container [2022-11-22 01:24:56,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:24:56" (1/1) ... [2022-11-22 01:24:56,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:24:56,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:24:56,926 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_da71c036-f80d-47fd-93ba-a9b1617fa0ee/sv-benchmarks/c/eca-rers2012/Problem02_label49.c[19626,19639] [2022-11-22 01:24:56,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:24:56,978 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:24:57,144 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_da71c036-f80d-47fd-93ba-a9b1617fa0ee/sv-benchmarks/c/eca-rers2012/Problem02_label49.c[19626,19639] [2022-11-22 01:24:57,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:24:57,181 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:24:57,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57 WrapperNode [2022-11-22 01:24:57,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:24:57,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:24:57,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:24:57,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:24:57,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,275 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2022-11-22 01:24:57,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:24:57,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:24:57,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:24:57,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:24:57,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,379 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:24:57,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:24:57,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:24:57,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:24:57,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (1/1) ... [2022-11-22 01:24:57,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:24:57,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:24:57,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:24:57,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:24:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:24:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:24:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:24:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:24:57,593 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:24:57,595 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:24:58,842 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:24:59,183 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:24:59,184 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:24:59,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:24:59 BoogieIcfgContainer [2022-11-22 01:24:59,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:24:59,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:24:59,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:24:59,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:24:59,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:24:56" (1/3) ... [2022-11-22 01:24:59,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ddc4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:24:59, skipping insertion in model container [2022-11-22 01:24:59,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:57" (2/3) ... [2022-11-22 01:24:59,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ddc4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:24:59, skipping insertion in model container [2022-11-22 01:24:59,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:24:59" (3/3) ... [2022-11-22 01:24:59,215 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label49.c [2022-11-22 01:24:59,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:24:59,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:24:59,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:24:59,317 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;@5f52c1ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:24:59,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:24:59,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:59,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:24:59,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:59,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:24:59,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:24:59,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:59,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1243331574, now seen corresponding path program 1 times [2022-11-22 01:24:59,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:24:59,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428246682] [2022-11-22 01:24:59,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:59,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:24:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:59,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:24:59,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:24:59,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428246682] [2022-11-22 01:24:59,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428246682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:59,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:59,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:24:59,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733707014] [2022-11-22 01:24:59,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:59,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:59,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:00,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:00,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:00,008 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:00,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:00,642 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2022-11-22 01:25:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:00,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-22 01:25:00,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:00,657 INFO L225 Difference]: With dead ends: 251 [2022-11-22 01:25:00,657 INFO L226 Difference]: Without dead ends: 163 [2022-11-22 01:25:00,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:00,664 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 47 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:00,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 23 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:25:00,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-22 01:25:00,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-22 01:25:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.8395061728395061) internal successors, (298), 162 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:00,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 298 transitions. [2022-11-22 01:25:00,749 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 298 transitions. Word has length 80 [2022-11-22 01:25:00,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:00,752 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 298 transitions. [2022-11-22 01:25:00,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 298 transitions. [2022-11-22 01:25:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-22 01:25:00,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:00,758 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:25:00,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:25:00,759 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:00,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:00,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1833073643, now seen corresponding path program 1 times [2022-11-22 01:25:00,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:00,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654468072] [2022-11-22 01:25:00,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:00,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:01,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:01,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:01,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654468072] [2022-11-22 01:25:01,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654468072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:01,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:01,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:25:01,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225557006] [2022-11-22 01:25:01,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:01,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:01,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:01,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:01,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:01,085 INFO L87 Difference]: Start difference. First operand 163 states and 298 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:01,563 INFO L93 Difference]: Finished difference Result 485 states and 891 transitions. [2022-11-22 01:25:01,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:01,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-22 01:25:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:01,566 INFO L225 Difference]: With dead ends: 485 [2022-11-22 01:25:01,566 INFO L226 Difference]: Without dead ends: 323 [2022-11-22 01:25:01,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:01,569 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 79 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:01,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 65 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:25:01,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-11-22 01:25:01,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2022-11-22 01:25:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.5031055900621118) internal successors, (484), 322 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:01,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 484 transitions. [2022-11-22 01:25:01,613 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 484 transitions. Word has length 84 [2022-11-22 01:25:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:01,614 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 484 transitions. [2022-11-22 01:25:01,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 484 transitions. [2022-11-22 01:25:01,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-22 01:25:01,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:01,626 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-22 01:25:01,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:25:01,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:01,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:01,634 INFO L85 PathProgramCache]: Analyzing trace with hash -2045174480, now seen corresponding path program 1 times [2022-11-22 01:25:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:01,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748739927] [2022-11-22 01:25:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:01,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:01,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:01,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748739927] [2022-11-22 01:25:01,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748739927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:01,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:01,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:01,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676797168] [2022-11-22 01:25:01,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:01,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:01,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:01,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:01,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:01,932 INFO L87 Difference]: Start difference. First operand 323 states and 484 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:02,371 INFO L93 Difference]: Finished difference Result 805 states and 1263 transitions. [2022-11-22 01:25:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:02,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-11-22 01:25:02,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:02,374 INFO L225 Difference]: With dead ends: 805 [2022-11-22 01:25:02,374 INFO L226 Difference]: Without dead ends: 483 [2022-11-22 01:25:02,375 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 [2022-11-22 01:25:02,377 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 77 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:02,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 139 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:25:02,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-11-22 01:25:02,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-11-22 01:25:02,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.3983402489626555) internal successors, (674), 482 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 674 transitions. [2022-11-22 01:25:02,397 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 674 transitions. Word has length 89 [2022-11-22 01:25:02,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:02,398 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 674 transitions. [2022-11-22 01:25:02,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:02,398 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 674 transitions. [2022-11-22 01:25:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-22 01:25:02,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:02,400 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:25:02,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:25:02,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:02,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:02,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1660243974, now seen corresponding path program 1 times [2022-11-22 01:25:02,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:02,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53113374] [2022-11-22 01:25:02,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:02,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:02,479 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:02,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:02,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53113374] [2022-11-22 01:25:02,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53113374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:02,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:02,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:25:02,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774627163] [2022-11-22 01:25:02,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:02,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:02,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:02,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:02,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:02,481 INFO L87 Difference]: Start difference. First operand 483 states and 674 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:02,894 INFO L93 Difference]: Finished difference Result 1285 states and 1833 transitions. [2022-11-22 01:25:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:02,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-11-22 01:25:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:02,899 INFO L225 Difference]: With dead ends: 1285 [2022-11-22 01:25:02,899 INFO L226 Difference]: Without dead ends: 803 [2022-11-22 01:25:02,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:02,901 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 109 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:02,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 30 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:25:02,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2022-11-22 01:25:02,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2022-11-22 01:25:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 802 states have (on average 1.3566084788029926) internal successors, (1088), 802 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1088 transitions. [2022-11-22 01:25:02,932 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1088 transitions. Word has length 90 [2022-11-22 01:25:02,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:02,932 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1088 transitions. [2022-11-22 01:25:02,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1088 transitions. [2022-11-22 01:25:02,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 01:25:02,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:02,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:02,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:25:02,942 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:02,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:02,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1624423703, now seen corresponding path program 1 times [2022-11-22 01:25:02,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:02,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239921572] [2022-11-22 01:25:02,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:02,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:03,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:03,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239921572] [2022-11-22 01:25:03,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239921572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:03,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:03,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:03,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143223378] [2022-11-22 01:25:03,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:03,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:03,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:03,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:03,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:03,115 INFO L87 Difference]: Start difference. First operand 803 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:03,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:03,587 INFO L93 Difference]: Finished difference Result 1925 states and 2600 transitions. [2022-11-22 01:25:03,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:03,589 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 01:25:03,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:03,593 INFO L225 Difference]: With dead ends: 1925 [2022-11-22 01:25:03,593 INFO L226 Difference]: Without dead ends: 1123 [2022-11-22 01:25:03,595 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 [2022-11-22 01:25:03,603 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 73 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:03,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 30 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:25:03,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-11-22 01:25:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1123. [2022-11-22 01:25:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1122 states have (on average 1.2994652406417113) internal successors, (1458), 1122 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1458 transitions. [2022-11-22 01:25:03,639 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1458 transitions. Word has length 109 [2022-11-22 01:25:03,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:03,640 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1458 transitions. [2022-11-22 01:25:03,641 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1458 transitions. [2022-11-22 01:25:03,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:25:03,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:03,649 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:03,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:25:03,649 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:03,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:03,650 INFO L85 PathProgramCache]: Analyzing trace with hash 588896819, now seen corresponding path program 1 times [2022-11-22 01:25:03,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:03,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990111346] [2022-11-22 01:25:03,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:03,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:03,785 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:03,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:03,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990111346] [2022-11-22 01:25:03,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990111346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:03,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:03,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:03,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283031018] [2022-11-22 01:25:03,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:03,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:03,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:03,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:03,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:03,792 INFO L87 Difference]: Start difference. First operand 1123 states and 1458 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:04,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:04,183 INFO L93 Difference]: Finished difference Result 2565 states and 3416 transitions. [2022-11-22 01:25:04,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:04,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-11-22 01:25:04,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:04,189 INFO L225 Difference]: With dead ends: 2565 [2022-11-22 01:25:04,189 INFO L226 Difference]: Without dead ends: 1443 [2022-11-22 01:25:04,191 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 [2022-11-22 01:25:04,198 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 70 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:04,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 145 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:25:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-11-22 01:25:04,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2022-11-22 01:25:04,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1442 states have (on average 1.2891816920943135) internal successors, (1859), 1442 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1859 transitions. [2022-11-22 01:25:04,246 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1859 transitions. Word has length 113 [2022-11-22 01:25:04,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:04,248 INFO L495 AbstractCegarLoop]: Abstraction has 1443 states and 1859 transitions. [2022-11-22 01:25:04,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:04,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1859 transitions. [2022-11-22 01:25:04,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-22 01:25:04,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:04,253 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:04,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:25:04,254 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:04,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:04,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1109225540, now seen corresponding path program 1 times [2022-11-22 01:25:04,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:04,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182480] [2022-11-22 01:25:04,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:04,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-22 01:25:04,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:04,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182480] [2022-11-22 01:25:04,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:04,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:04,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:04,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905555402] [2022-11-22 01:25:04,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:04,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:04,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:04,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:04,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:04,464 INFO L87 Difference]: Start difference. First operand 1443 states and 1859 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:04,842 INFO L93 Difference]: Finished difference Result 2885 states and 3717 transitions. [2022-11-22 01:25:04,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:04,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2022-11-22 01:25:04,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:04,855 INFO L225 Difference]: With dead ends: 2885 [2022-11-22 01:25:04,855 INFO L226 Difference]: Without dead ends: 1443 [2022-11-22 01:25:04,857 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 [2022-11-22 01:25:04,858 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:04,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 143 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:25:04,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-11-22 01:25:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2022-11-22 01:25:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1442 states have (on average 1.2510402219140084) internal successors, (1804), 1442 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:04,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1804 transitions. [2022-11-22 01:25:04,893 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1804 transitions. Word has length 125 [2022-11-22 01:25:04,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:04,894 INFO L495 AbstractCegarLoop]: Abstraction has 1443 states and 1804 transitions. [2022-11-22 01:25:04,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:04,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1804 transitions. [2022-11-22 01:25:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-22 01:25:04,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:04,899 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 01:25:04,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:25:04,899 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:04,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:04,900 INFO L85 PathProgramCache]: Analyzing trace with hash 56936938, now seen corresponding path program 1 times [2022-11-22 01:25:04,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:04,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894474285] [2022-11-22 01:25:04,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:04,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:25:05,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:05,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894474285] [2022-11-22 01:25:05,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894474285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:05,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:05,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:05,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88874191] [2022-11-22 01:25:05,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:05,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:05,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:05,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:05,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:05,040 INFO L87 Difference]: Start difference. First operand 1443 states and 1804 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:05,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:05,444 INFO L93 Difference]: Finished difference Result 3285 states and 4189 transitions. [2022-11-22 01:25:05,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:05,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-11-22 01:25:05,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:05,452 INFO L225 Difference]: With dead ends: 3285 [2022-11-22 01:25:05,453 INFO L226 Difference]: Without dead ends: 1603 [2022-11-22 01:25:05,455 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 [2022-11-22 01:25:05,458 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 56 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:05,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 139 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:25:05,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-11-22 01:25:05,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1603. [2022-11-22 01:25:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1603 states, 1602 states have (on average 1.2421972534332084) internal successors, (1990), 1602 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:05,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 1990 transitions. [2022-11-22 01:25:05,500 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 1990 transitions. Word has length 146 [2022-11-22 01:25:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:05,501 INFO L495 AbstractCegarLoop]: Abstraction has 1603 states and 1990 transitions. [2022-11-22 01:25:05,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:05,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 1990 transitions. [2022-11-22 01:25:05,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-22 01:25:05,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:05,506 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 01:25:05,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:25:05,506 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:05,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:05,507 INFO L85 PathProgramCache]: Analyzing trace with hash -82565703, now seen corresponding path program 1 times [2022-11-22 01:25:05,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:05,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475802122] [2022-11-22 01:25:05,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:05,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:05,650 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:25:05,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:05,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475802122] [2022-11-22 01:25:05,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475802122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:05,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:05,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:05,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982166999] [2022-11-22 01:25:05,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:05,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:05,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:05,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:05,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:05,654 INFO L87 Difference]: Start difference. First operand 1603 states and 1990 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:06,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:06,087 INFO L93 Difference]: Finished difference Result 3925 states and 4980 transitions. [2022-11-22 01:25:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:06,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2022-11-22 01:25:06,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:06,095 INFO L225 Difference]: With dead ends: 3925 [2022-11-22 01:25:06,096 INFO L226 Difference]: Without dead ends: 2323 [2022-11-22 01:25:06,098 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 [2022-11-22 01:25:06,099 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 66 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:06,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 107 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:25:06,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-11-22 01:25:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2163. [2022-11-22 01:25:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2163 states, 2162 states have (on average 1.2446808510638299) internal successors, (2691), 2162 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:06,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 2691 transitions. [2022-11-22 01:25:06,155 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 2691 transitions. Word has length 152 [2022-11-22 01:25:06,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:06,156 INFO L495 AbstractCegarLoop]: Abstraction has 2163 states and 2691 transitions. [2022-11-22 01:25:06,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:06,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 2691 transitions. [2022-11-22 01:25:06,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-22 01:25:06,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:06,160 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-11-22 01:25:06,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:25:06,161 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:06,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2076598951, now seen corresponding path program 1 times [2022-11-22 01:25:06,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:06,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567466390] [2022-11-22 01:25:06,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:06,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:06,313 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-22 01:25:06,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:06,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567466390] [2022-11-22 01:25:06,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567466390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:06,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:06,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:25:06,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650023684] [2022-11-22 01:25:06,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:06,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:06,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:06,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:06,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:06,316 INFO L87 Difference]: Start difference. First operand 2163 states and 2691 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:06,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:06,511 INFO L93 Difference]: Finished difference Result 3845 states and 4804 transitions. [2022-11-22 01:25:06,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:06,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2022-11-22 01:25:06,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:06,515 INFO L225 Difference]: With dead ends: 3845 [2022-11-22 01:25:06,516 INFO L226 Difference]: Without dead ends: 1043 [2022-11-22 01:25:06,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:06,519 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 99 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:06,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 4 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:06,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-11-22 01:25:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2022-11-22 01:25:06,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1042 states have (on average 1.118042226487524) internal successors, (1165), 1042 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:06,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1165 transitions. [2022-11-22 01:25:06,542 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1165 transitions. Word has length 163 [2022-11-22 01:25:06,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:06,542 INFO L495 AbstractCegarLoop]: Abstraction has 1043 states and 1165 transitions. [2022-11-22 01:25:06,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:06,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1165 transitions. [2022-11-22 01:25:06,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-22 01:25:06,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:06,545 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:06,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:25:06,546 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:06,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:06,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1384435209, now seen corresponding path program 1 times [2022-11-22 01:25:06,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:06,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246251603] [2022-11-22 01:25:06,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:06,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:06,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:06,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246251603] [2022-11-22 01:25:06,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246251603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:06,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:06,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:25:06,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396577982] [2022-11-22 01:25:06,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:06,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:25:06,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:06,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:25:06,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:25:06,824 INFO L87 Difference]: Start difference. First operand 1043 states and 1165 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:07,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:07,259 INFO L93 Difference]: Finished difference Result 2005 states and 2247 transitions. [2022-11-22 01:25:07,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:25:07,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2022-11-22 01:25:07,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:07,263 INFO L225 Difference]: With dead ends: 2005 [2022-11-22 01:25:07,263 INFO L226 Difference]: Without dead ends: 1043 [2022-11-22 01:25:07,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:25:07,265 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 124 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:07,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 129 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:25:07,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-11-22 01:25:07,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2022-11-22 01:25:07,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1042 states have (on average 1.1122840690978886) internal successors, (1159), 1042 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1159 transitions. [2022-11-22 01:25:07,286 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1159 transitions. Word has length 178 [2022-11-22 01:25:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:07,286 INFO L495 AbstractCegarLoop]: Abstraction has 1043 states and 1159 transitions. [2022-11-22 01:25:07,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:07,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1159 transitions. [2022-11-22 01:25:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-22 01:25:07,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:07,290 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:07,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:25:07,291 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:07,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:07,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1069398025, now seen corresponding path program 1 times [2022-11-22 01:25:07,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:07,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021942399] [2022-11-22 01:25:07,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:07,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 93 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:07,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:07,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021942399] [2022-11-22 01:25:07,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021942399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:07,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721197768] [2022-11-22 01:25:07,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:07,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:07,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:07,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:08,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:25:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:08,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:25:08,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:08,405 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-22 01:25:08,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:25:08,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721197768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:08,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:08,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-22 01:25:08,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939214361] [2022-11-22 01:25:08,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:08,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:08,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:08,408 INFO L87 Difference]: Start difference. First operand 1043 states and 1159 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:08,667 INFO L93 Difference]: Finished difference Result 2005 states and 2235 transitions. [2022-11-22 01:25:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-11-22 01:25:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:08,671 INFO L225 Difference]: With dead ends: 2005 [2022-11-22 01:25:08,671 INFO L226 Difference]: Without dead ends: 963 [2022-11-22 01:25:08,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:08,673 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:08,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:08,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-11-22 01:25:08,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 563. [2022-11-22 01:25:08,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 562 states have (on average 1.092526690391459) internal successors, (614), 562 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 614 transitions. [2022-11-22 01:25:08,698 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 614 transitions. Word has length 210 [2022-11-22 01:25:08,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:08,699 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 614 transitions. [2022-11-22 01:25:08,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:08,699 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 614 transitions. [2022-11-22 01:25:08,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-22 01:25:08,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:08,702 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 01:25:08,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:08,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 01:25:08,909 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:08,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:08,910 INFO L85 PathProgramCache]: Analyzing trace with hash -595184528, now seen corresponding path program 1 times [2022-11-22 01:25:08,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:08,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073089869] [2022-11-22 01:25:08,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:08,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:09,286 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:09,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:09,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073089869] [2022-11-22 01:25:09,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073089869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:09,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:09,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:25:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068379630] [2022-11-22 01:25:09,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:09,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:25:09,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:25:09,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:25:09,289 INFO L87 Difference]: Start difference. First operand 563 states and 614 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:09,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:09,543 INFO L93 Difference]: Finished difference Result 1045 states and 1145 transitions. [2022-11-22 01:25:09,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:09,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2022-11-22 01:25:09,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:09,545 INFO L225 Difference]: With dead ends: 1045 [2022-11-22 01:25:09,545 INFO L226 Difference]: Without dead ends: 403 [2022-11-22 01:25:09,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:25:09,546 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 96 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:09,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 107 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:09,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-22 01:25:09,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2022-11-22 01:25:09,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.072139303482587) internal successors, (431), 402 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:09,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 431 transitions. [2022-11-22 01:25:09,559 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 431 transitions. Word has length 213 [2022-11-22 01:25:09,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:09,561 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 431 transitions. [2022-11-22 01:25:09,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:09,561 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 431 transitions. [2022-11-22 01:25:09,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-22 01:25:09,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:09,565 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:09,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:25:09,565 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:09,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:09,566 INFO L85 PathProgramCache]: Analyzing trace with hash 775716007, now seen corresponding path program 1 times [2022-11-22 01:25:09,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:09,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667266026] [2022-11-22 01:25:09,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:09,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:10,255 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 167 proven. 94 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-22 01:25:10,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:10,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667266026] [2022-11-22 01:25:10,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667266026] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:10,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903304613] [2022-11-22 01:25:10,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:10,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:10,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:10,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:10,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:25:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:10,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:25:10,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 266 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:11,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 266 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:13,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903304613] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:25:13,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [981809973] [2022-11-22 01:25:13,057 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-11-22 01:25:13,058 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:25:13,062 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:25:13,068 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:25:13,069 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:25:23,290 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:25:33,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [981809973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:33,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:25:33,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [4, 5, 5] total 23 [2022-11-22 01:25:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911146755] [2022-11-22 01:25:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:33,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-22 01:25:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:33,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-22 01:25:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:25:33,911 INFO L87 Difference]: Start difference. First operand 403 states and 431 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:37,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:37,923 INFO L93 Difference]: Finished difference Result 968 states and 1040 transitions. [2022-11-22 01:25:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:25:37,924 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2022-11-22 01:25:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:37,927 INFO L225 Difference]: With dead ends: 968 [2022-11-22 01:25:37,928 INFO L226 Difference]: Without dead ends: 646 [2022-11-22 01:25:37,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 545 SyntacticMatches, 182 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3594 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:25:37,929 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 345 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:37,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 15 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 01:25:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2022-11-22 01:25:37,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 596. [2022-11-22 01:25:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 595 states have (on average 1.06890756302521) internal successors, (636), 595 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 636 transitions. [2022-11-22 01:25:37,969 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 636 transitions. Word has length 248 [2022-11-22 01:25:37,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:37,969 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 636 transitions. [2022-11-22 01:25:37,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:37,970 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 636 transitions. [2022-11-22 01:25:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-11-22 01:25:37,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:37,975 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:37,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:38,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:38,181 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:38,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:38,182 INFO L85 PathProgramCache]: Analyzing trace with hash -737676709, now seen corresponding path program 1 times [2022-11-22 01:25:38,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:38,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362485414] [2022-11-22 01:25:38,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:38,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-22 01:25:38,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:38,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362485414] [2022-11-22 01:25:38,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362485414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:38,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:38,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:38,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595624335] [2022-11-22 01:25:38,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:38,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:38,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:38,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:38,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:38,611 INFO L87 Difference]: Start difference. First operand 596 states and 636 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:38,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:38,843 INFO L93 Difference]: Finished difference Result 1219 states and 1315 transitions. [2022-11-22 01:25:38,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:38,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 284 [2022-11-22 01:25:38,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:38,846 INFO L225 Difference]: With dead ends: 1219 [2022-11-22 01:25:38,846 INFO L226 Difference]: Without dead ends: 750 [2022-11-22 01:25:38,847 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 [2022-11-22 01:25:38,847 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 35 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:38,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 16 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-11-22 01:25:38,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 723. [2022-11-22 01:25:38,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.0609418282548477) internal successors, (766), 722 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:38,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 766 transitions. [2022-11-22 01:25:38,873 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 766 transitions. Word has length 284 [2022-11-22 01:25:38,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:38,873 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 766 transitions. [2022-11-22 01:25:38,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:38,874 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 766 transitions. [2022-11-22 01:25:38,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-11-22 01:25:38,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:38,879 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:38,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:25:38,879 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:25:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:38,880 INFO L85 PathProgramCache]: Analyzing trace with hash 316984854, now seen corresponding path program 1 times [2022-11-22 01:25:38,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:38,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617340237] [2022-11-22 01:25:38,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:38,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 262 proven. 145 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-22 01:25:39,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:39,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617340237] [2022-11-22 01:25:39,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617340237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:39,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243925296] [2022-11-22 01:25:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:39,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:39,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:39,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:39,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:25:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:40,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:25:40,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 169 proven. 289 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-22 01:25:41,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:43,446 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 143 proven. 315 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-22 01:25:43,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243925296] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:25:43,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [814011352] [2022-11-22 01:25:43,450 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-11-22 01:25:43,451 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:25:43,451 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:25:43,451 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:25:43,453 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:27:39,303 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 46 [2022-11-22 01:27:39,777 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 25664 conjuctions. This might take some time... [2022-11-22 01:27:40,827 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 392 conjuctions. [2022-11-22 01:27:40,835 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 46 [2022-11-22 01:27:41,129 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 25664 conjuctions. This might take some time... [2022-11-22 01:27:42,043 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 392 conjuctions. [2022-11-22 01:27:42,170 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 46 [2022-11-22 01:27:42,578 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 25664 conjuctions. This might take some time... [2022-11-22 01:27:43,568 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 392 conjuctions. [2022-11-22 01:27:44,064 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:28:06,028 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '47568#(and (<= 26 ~z~0) (<= 5 ~e~0) (<= 25 ~y~0) (<= ~c~0 3) (<= ~e~0 5) (<= 6 ~f~0) (<= 0 |#NULL.base|) (= ~a17~0 8) (<= ~w~0 23) (= 7 ~a28~0) (<= ~u~0 21) (<= 1 |ULTIMATE.start_calculate_output_~input#1|) (= ~a25~0 1) (<= ~x~0 24) (<= 3 ~c~0) (<= |#NULL.offset| 0) (<= ~v~0 22) (<= 1 |ULTIMATE.start_main_~input~0#1|) (= ~a11~0 1) (<= ~a~0 1) (<= 4 ~d~0) (not (= ~a19~0 1)) (<= 23 ~w~0) (<= ~z~0 26) (= ~a21~0 1) (<= 21 ~u~0) (<= 1 |ULTIMATE.start_calculate_output_#in~input#1|) (<= |#NULL.base| 0) (<= ~y~0 25) (<= 1 ~a~0) (<= 22 ~v~0) (<= 0 |#NULL.offset|) (<= ~d~0 4) (<= 0 |#StackHeapBarrier|) (<= ~f~0 6) (<= 24 ~x~0))' at error location [2022-11-22 01:28:06,028 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:28:06,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:28:06,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-22 01:28:06,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966643918] [2022-11-22 01:28:06,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:28:06,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:28:06,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:06,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:28:06,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:28:06,032 INFO L87 Difference]: Start difference. First operand 723 states and 766 transitions. Second operand has 14 states, 14 states have (on average 36.92857142857143) internal successors, (517), 13 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:06,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:06,902 INFO L93 Difference]: Finished difference Result 1160 states and 1234 transitions. [2022-11-22 01:28:06,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:28:06,903 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 36.92857142857143) internal successors, (517), 13 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2022-11-22 01:28:06,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:06,904 INFO L225 Difference]: With dead ends: 1160 [2022-11-22 01:28:06,904 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:28:06,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 636 SyntacticMatches, 244 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3658 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2022-11-22 01:28:06,906 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 580 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:06,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 48 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:28:06,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:28:06,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:28:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:28:06,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 299 [2022-11-22 01:28:06,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:06,908 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:28:06,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 36.92857142857143) internal successors, (517), 13 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:28:06,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:28:06,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:28:06,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:07,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 01:28:07,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:28:08,457 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2022-11-22 01:28:08,457 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2022-11-22 01:28:08,457 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2022-11-22 01:28:08,458 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2022-11-22 01:28:08,458 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2022-11-22 01:28:08,458 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2022-11-22 01:28:08,458 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2022-11-22 01:28:08,458 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2022-11-22 01:28:08,458 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2022-11-22 01:28:08,458 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2022-11-22 01:28:08,459 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2022-11-22 01:28:08,459 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2022-11-22 01:28:08,459 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2022-11-22 01:28:08,459 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2022-11-22 01:28:08,459 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2022-11-22 01:28:08,459 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2022-11-22 01:28:08,459 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2022-11-22 01:28:08,460 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2022-11-22 01:28:08,460 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2022-11-22 01:28:08,460 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2022-11-22 01:28:08,460 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2022-11-22 01:28:08,460 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2022-11-22 01:28:08,460 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2022-11-22 01:28:08,460 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2022-11-22 01:28:08,461 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2022-11-22 01:28:08,461 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2022-11-22 01:28:08,461 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:28:08,461 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2022-11-22 01:28:08,461 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2022-11-22 01:28:08,461 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2022-11-22 01:28:08,462 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2022-11-22 01:28:08,462 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2022-11-22 01:28:08,462 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2022-11-22 01:28:08,462 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2022-11-22 01:28:08,462 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2022-11-22 01:28:08,462 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2022-11-22 01:28:08,462 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 557) no Hoare annotation was computed. [2022-11-22 01:28:08,463 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2022-11-22 01:28:08,463 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2022-11-22 01:28:08,463 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2022-11-22 01:28:08,463 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2022-11-22 01:28:08,463 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2022-11-22 01:28:08,463 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2022-11-22 01:28:08,463 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2022-11-22 01:28:08,464 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2022-11-22 01:28:08,464 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2022-11-22 01:28:08,464 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2022-11-22 01:28:08,464 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2022-11-22 01:28:08,464 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2022-11-22 01:28:08,464 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2022-11-22 01:28:08,465 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2022-11-22 01:28:08,465 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2022-11-22 01:28:08,465 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2022-11-22 01:28:08,465 INFO L895 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse6 (= ~a25~0 1))) (let ((.cse11 (<= ~a28~0 7)) (.cse5 (= ~a11~0 1)) (.cse13 (not .cse6)) (.cse4 (<= 9 ~a28~0)) (.cse3 (= ~a19~0 1)) (.cse12 (<= ~a25~0 0)) (.cse7 (= ~a17~0 8)) (.cse8 (= ~a21~0 1)) (.cse9 (= ~a11~0 ~a19~0)) (.cse10 (= ~a11~0 0)) (.cse0 (<= 10 ~a28~0)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and (or (and .cse4 .cse5 .cse3) (and .cse4 .cse6 .cse5 .cse2)) .cse1) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse6 .cse1 .cse3) (and .cse0 .cse5 .cse2 .cse13) (and .cse7 (= ~a25~0 ~a11~0) .cse8 .cse10 .cse3 .cse11) (and .cse5 .cse1 .cse2 .cse12) (and (<= 11 ~a28~0) .cse5 .cse13 .cse3) (and .cse7 .cse4 .cse8 .cse10 .cse2 .cse3 .cse12) (and .cse7 (not (= |ULTIMATE.start_calculate_output_~input#1| 3)) .cse8 .cse9 .cse10 (= ~a28~0 8) (= ~a25~0 0)) (and .cse0 .cse6 .cse1 .cse2)))) [2022-11-22 01:28:08,466 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2022-11-22 01:28:08,466 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2022-11-22 01:28:08,466 INFO L902 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2022-11-22 01:28:08,466 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-11-22 01:28:08,466 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2022-11-22 01:28:08,467 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2022-11-22 01:28:08,467 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2022-11-22 01:28:08,467 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2022-11-22 01:28:08,467 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:28:08,467 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2022-11-22 01:28:08,467 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2022-11-22 01:28:08,468 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse6 (= ~a25~0 1))) (let ((.cse11 (<= ~a28~0 7)) (.cse5 (= ~a11~0 1)) (.cse13 (not .cse6)) (.cse4 (<= 9 ~a28~0)) (.cse3 (= ~a19~0 1)) (.cse12 (<= ~a25~0 0)) (.cse7 (= ~a17~0 8)) (.cse8 (= ~a21~0 1)) (.cse9 (= ~a11~0 ~a19~0)) (.cse10 (= ~a11~0 0)) (.cse0 (<= 10 ~a28~0)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and (or (and .cse4 .cse5 .cse3) (and .cse4 .cse6 .cse5 .cse2)) .cse1) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse6 .cse1 .cse3) (and .cse0 .cse5 .cse2 .cse13) (and .cse7 (= ~a25~0 ~a11~0) .cse8 .cse10 .cse3 .cse11) (and .cse5 .cse1 .cse2 .cse12) (and (<= 11 ~a28~0) .cse5 .cse13 .cse3) (and .cse7 .cse4 .cse8 .cse10 .cse2 .cse3 .cse12) (and .cse7 (not (= |ULTIMATE.start_calculate_output_~input#1| 3)) .cse8 .cse9 .cse10 (= ~a28~0 8) (= ~a25~0 0)) (and .cse0 .cse6 .cse1 .cse2)))) [2022-11-22 01:28:08,468 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2022-11-22 01:28:08,468 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2022-11-22 01:28:08,468 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2022-11-22 01:28:08,468 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2022-11-22 01:28:08,469 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2022-11-22 01:28:08,469 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2022-11-22 01:28:08,469 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2022-11-22 01:28:08,469 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2022-11-22 01:28:08,469 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2022-11-22 01:28:08,469 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2022-11-22 01:28:08,469 INFO L899 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2022-11-22 01:28:08,470 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2022-11-22 01:28:08,470 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2022-11-22 01:28:08,470 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2022-11-22 01:28:08,470 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2022-11-22 01:28:08,470 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2022-11-22 01:28:08,470 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2022-11-22 01:28:08,470 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2022-11-22 01:28:08,471 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2022-11-22 01:28:08,474 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:08,476 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:28:08,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:28:08 BoogieIcfgContainer [2022-11-22 01:28:08,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:28:08,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:28:08,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:28:08,509 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:28:08,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:24:59" (3/4) ... [2022-11-22 01:28:08,513 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:28:08,541 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 117 nodes and edges [2022-11-22 01:28:08,542 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-22 01:28:08,543 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-22 01:28:08,544 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:28:08,670 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:28:08,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:28:08,671 INFO L158 Benchmark]: Toolchain (without parser) took 192100.63ms. Allocated memory was 163.6MB in the beginning and 799.0MB in the end (delta: 635.4MB). Free memory was 131.1MB in the beginning and 566.3MB in the end (delta: -435.2MB). Peak memory consumption was 202.0MB. Max. memory is 16.1GB. [2022-11-22 01:28:08,671 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:28:08,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 610.10ms. Allocated memory is still 163.6MB. Free memory was 131.1MB in the beginning and 104.8MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-22 01:28:08,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.30ms. Allocated memory is still 163.6MB. Free memory was 104.8MB in the beginning and 99.4MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:28:08,673 INFO L158 Benchmark]: Boogie Preprocessor took 112.81ms. Allocated memory is still 163.6MB. Free memory was 99.4MB in the beginning and 95.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:28:08,673 INFO L158 Benchmark]: RCFGBuilder took 1807.72ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 95.1MB in the beginning and 164.3MB in the end (delta: -69.1MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2022-11-22 01:28:08,674 INFO L158 Benchmark]: TraceAbstraction took 189307.22ms. Allocated memory was 220.2MB in the beginning and 799.0MB in the end (delta: 578.8MB). Free memory was 164.3MB in the beginning and 577.8MB in the end (delta: -413.5MB). Peak memory consumption was 470.4MB. Max. memory is 16.1GB. [2022-11-22 01:28:08,679 INFO L158 Benchmark]: Witness Printer took 161.42ms. Allocated memory is still 799.0MB. Free memory was 577.8MB in the beginning and 566.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:28:08,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 610.10ms. Allocated memory is still 163.6MB. Free memory was 131.1MB in the beginning and 104.8MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.30ms. Allocated memory is still 163.6MB. Free memory was 104.8MB in the beginning and 99.4MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.81ms. Allocated memory is still 163.6MB. Free memory was 99.4MB in the beginning and 95.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1807.72ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 95.1MB in the beginning and 164.3MB in the end (delta: -69.1MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. * TraceAbstraction took 189307.22ms. Allocated memory was 220.2MB in the beginning and 799.0MB in the end (delta: 578.8MB). Free memory was 164.3MB in the beginning and 577.8MB in the end (delta: -413.5MB). Peak memory consumption was 470.4MB. Max. memory is 16.1GB. * Witness Printer took 161.42ms. Allocated memory is still 799.0MB. Free memory was 577.8MB in the beginning and 566.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 557]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 189.2s, OverallIterations: 16, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1943 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1943 mSDsluCounter, 1175 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 139 mSDsCounter, 742 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5154 IncrementalHoareTripleChecker+Invalid, 5896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 742 mSolverCounterUnsat, 1036 mSDtfsCounter, 5154 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1913 GetRequests, 1412 SyntacticMatches, 426 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7257 ImplicationChecksByTransitivity, 35.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2163occurred in iteration=9, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 637 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 50 NumberOfFragments, 379 HoareAnnotationTreeSize, 3 FomulaSimplifications, 240 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2698 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 3340 NumberOfCodeBlocks, 3340 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3866 ConstructedInterpolants, 0 QuantifiedInterpolants, 20696 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1388 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 21 InterpolantComputations, 14 PerfectInterpolantSequences, 3248/4274 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 10.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 92, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 395, TOOLS_POST_TIME: 6.9s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 395, TOOLS_QUANTIFIERELIM_TIME: 6.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 488, FLUID_YES_ANSWERS: 127, DOMAIN_JOIN_APPLICATIONS: 17, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 127, DOMAIN_ALPHA_TIME: 2.3s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 92, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 3.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.3s, DAG_COMPRESSION_PROCESSED_NODES: 9582, DAG_COMPRESSION_RETAINED_NODES: 361, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((((((((10 <= a28 && a17 <= 8) && a28 <= 10) && a19 == 1) || ((((9 <= a28 && a11 == 1) && a19 == 1) || (((9 <= a28 && a25 == 1) && a11 == 1) && a28 <= 10)) && a17 <= 8)) || (((((a17 == 8 && a21 == 1) && a11 == a19) && a11 == 0) && a28 <= 7) && a25 <= 0)) || ((a25 == 1 && a17 <= 8) && a19 == 1)) || (((10 <= a28 && a11 == 1) && a28 <= 10) && !(a25 == 1))) || (((((a17 == 8 && a25 == a11) && a21 == 1) && a11 == 0) && a19 == 1) && a28 <= 7)) || (((a11 == 1 && a17 <= 8) && a28 <= 10) && a25 <= 0)) || (((11 <= a28 && a11 == 1) && !(a25 == 1)) && a19 == 1)) || ((((((a17 == 8 && 9 <= a28) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || ((((((a17 == 8 && !(input == 3)) && a21 == 1) && a11 == a19) && a11 == 0) && a28 == 8) && a25 == 0)) || (((10 <= a28 && a25 == 1) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((10 <= a28 && a17 <= 8) && a28 <= 10) && a19 == 1) || ((((9 <= a28 && a11 == 1) && a19 == 1) || (((9 <= a28 && a25 == 1) && a11 == 1) && a28 <= 10)) && a17 <= 8)) || (((((a17 == 8 && a21 == 1) && a11 == a19) && a11 == 0) && a28 <= 7) && a25 <= 0)) || ((a25 == 1 && a17 <= 8) && a19 == 1)) || (((10 <= a28 && a11 == 1) && a28 <= 10) && !(a25 == 1))) || (((((a17 == 8 && a25 == a11) && a21 == 1) && a11 == 0) && a19 == 1) && a28 <= 7)) || (((a11 == 1 && a17 <= 8) && a28 <= 10) && a25 <= 0)) || (((11 <= a28 && a11 == 1) && !(a25 == 1)) && a19 == 1)) || ((((((a17 == 8 && 9 <= a28) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || ((((((a17 == 8 && !(input == 3)) && a21 == 1) && a11 == a19) && a11 == 0) && a28 == 8) && a25 == 0)) || (((10 <= a28 && a25 == 1) && a17 <= 8) && a28 <= 10) RESULT: Ultimate proved your program to be correct! [2022-11-22 01:28:08,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da71c036-f80d-47fd-93ba-a9b1617fa0ee/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE