./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/nested_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/nested_1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V --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 8828f6ff39cd2bcfba4fe3d04f0119d60137bcad91eabef2e2b840cbd0802b98 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:34:23,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:34:23,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:34:23,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:34:23,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:34:23,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:34:23,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:34:23,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:34:23,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:34:23,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:34:23,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:34:23,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:34:23,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:34:23,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:34:23,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:34:23,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:34:23,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:34:23,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:34:23,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:34:23,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:34:23,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:34:23,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:34:23,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:34:23,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:34:23,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:34:23,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:34:23,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:34:23,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:34:23,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:34:23,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:34:23,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:34:23,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:34:23,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:34:23,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:34:23,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:34:23,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:34:23,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:34:23,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:34:23,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:34:23,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:34:23,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:34:23,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:34:23,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:34:23,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:34:23,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:34:23,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:34:23,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:34:23,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:34:23,548 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:34:23,548 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:34:23,549 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:34:23,549 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:34:23,550 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:34:23,551 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:34:23,551 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:34:23,551 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:34:23,551 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:34:23,552 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:34:23,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:34:23,552 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:34:23,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:34:23,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:34:23,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:34:23,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:34:23,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:34:23,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:34:23,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:34:23,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:34:23,557 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:34:23,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:34:23,558 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:34:23,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:34:23,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:34:23,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:34:23,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:34:23,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:34:23,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:34:23,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:34:23,561 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:34:23,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:34:23,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:34:23,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:34:23,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:34:23,562 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8828f6ff39cd2bcfba4fe3d04f0119d60137bcad91eabef2e2b840cbd0802b98 [2021-11-23 03:34:23,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:34:23,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:34:23,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:34:23,928 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:34:23,929 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:34:23,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/loop-acceleration/nested_1-2.c [2021-11-23 03:34:24,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/data/c034ca622/1aced49b4d3844f29fcc18f2db0292cf/FLAGfcc523f8c [2021-11-23 03:34:24,589 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:34:24,590 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/sv-benchmarks/c/loop-acceleration/nested_1-2.c [2021-11-23 03:34:24,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/data/c034ca622/1aced49b4d3844f29fcc18f2db0292cf/FLAGfcc523f8c [2021-11-23 03:34:24,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/data/c034ca622/1aced49b4d3844f29fcc18f2db0292cf [2021-11-23 03:34:24,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:34:24,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:34:24,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:24,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:34:24,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:34:24,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:24" (1/1) ... [2021-11-23 03:34:24,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c68320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:24, skipping insertion in model container [2021-11-23 03:34:24,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:24" (1/1) ... [2021-11-23 03:34:24,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:34:24,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:34:25,177 WARN L230 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_7af21b76-4c4b-470b-a898-b90bae27bcc7/sv-benchmarks/c/loop-acceleration/nested_1-2.c[322,335] [2021-11-23 03:34:25,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:25,233 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:34:25,249 WARN L230 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_7af21b76-4c4b-470b-a898-b90bae27bcc7/sv-benchmarks/c/loop-acceleration/nested_1-2.c[322,335] [2021-11-23 03:34:25,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:25,269 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:34:25,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25 WrapperNode [2021-11-23 03:34:25,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:25,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:34:25,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:34:25,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:34:25,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,310 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-11-23 03:34:25,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:34:25,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:34:25,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:34:25,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:34:25,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:34:25,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:34:25,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:34:25,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:34:25,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (1/1) ... [2021-11-23 03:34:25,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:34:25,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:25,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:34:25,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:34:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:34:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:34:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:34:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:34:25,522 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:34:25,525 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:34:25,681 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:34:25,705 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:34:25,705 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 03:34:25,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:25 BoogieIcfgContainer [2021-11-23 03:34:25,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:34:25,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:34:25,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:34:25,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:34:25,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:34:24" (1/3) ... [2021-11-23 03:34:25,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15995093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:25, skipping insertion in model container [2021-11-23 03:34:25,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:25" (2/3) ... [2021-11-23 03:34:25,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15995093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:25, skipping insertion in model container [2021-11-23 03:34:25,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:25" (3/3) ... [2021-11-23 03:34:25,719 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_1-2.c [2021-11-23 03:34:25,726 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:34:25,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:34:25,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:34:25,798 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:34:25,806 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:34:25,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:34:25,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 03:34:25,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:25,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 03:34:25,841 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:25,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:25,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2252617, now seen corresponding path program 1 times [2021-11-23 03:34:25,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:25,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118995419] [2021-11-23 03:34:25,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:25,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:26,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:26,054 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:26,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118995419] [2021-11-23 03:34:26,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118995419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:26,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:26,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:34:26,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453019689] [2021-11-23 03:34:26,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:26,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:34:26,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:26,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:34:26,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:34:26,103 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-23 03:34:26,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:26,172 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-11-23 03:34:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:34:26,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-11-23 03:34:26,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:26,186 INFO L225 Difference]: With dead ends: 15 [2021-11-23 03:34:26,186 INFO L226 Difference]: Without dead ends: 8 [2021-11-23 03:34:26,189 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:34:26,195 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:26,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:34:26,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-23 03:34:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-11-23 03:34:26,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:34:26,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-11-23 03:34:26,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 4 [2021-11-23 03:34:26,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:26,235 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-11-23 03:34:26,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-23 03:34:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-23 03:34:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 03:34:26,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:26,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 03:34:26,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:34:26,238 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:26,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:26,239 INFO L85 PathProgramCache]: Analyzing trace with hash 2130164165, now seen corresponding path program 1 times [2021-11-23 03:34:26,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:26,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475195264] [2021-11-23 03:34:26,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:26,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:26,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:26,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475195264] [2021-11-23 03:34:26,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475195264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:26,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:26,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:34:26,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658491961] [2021-11-23 03:34:26,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:26,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:34:26,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:26,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:34:26,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:34:26,296 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:34:26,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:26,339 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2021-11-23 03:34:26,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:34:26,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-23 03:34:26,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:26,341 INFO L225 Difference]: With dead ends: 13 [2021-11-23 03:34:26,341 INFO L226 Difference]: Without dead ends: 8 [2021-11-23 03:34:26,342 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:34:26,345 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:26,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:34:26,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-23 03:34:26,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-23 03:34:26,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-11-23 03:34:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-23 03:34:26,350 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2021-11-23 03:34:26,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:26,351 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-23 03:34:26,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:34:26,352 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-23 03:34:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 03:34:26,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:26,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:26,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:34:26,367 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:26,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:26,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1585602295, now seen corresponding path program 1 times [2021-11-23 03:34:26,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:26,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164533482] [2021-11-23 03:34:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:26,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:26,468 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:26,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164533482] [2021-11-23 03:34:26,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164533482] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:34:26,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000139487] [2021-11-23 03:34:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:26,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:26,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:26,472 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:34:26,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:34:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:26,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:34:26,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:34:26,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:34:26,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000139487] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:34:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [546750013] [2021-11-23 03:34:26,819 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-23 03:34:26,820 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:34:26,826 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:34:26,833 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:34:26,834 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:34:27,421 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:34:27,590 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '123#(and (<= 268435455 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:34:27,590 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:34:27,590 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:34:27,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2021-11-23 03:34:27,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067057733] [2021-11-23 03:34:27,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:34:27,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:34:27,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:27,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:34:27,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-23 03:34:27,594 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:34:27,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:27,868 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2021-11-23 03:34:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 03:34:27,870 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-23 03:34:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:27,871 INFO L225 Difference]: With dead ends: 27 [2021-11-23 03:34:27,871 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 03:34:27,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2021-11-23 03:34:27,874 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:27,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 8 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:34:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 03:34:27,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-23 03:34:27,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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) [2021-11-23 03:34:27,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-11-23 03:34:27,889 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 7 [2021-11-23 03:34:27,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:27,889 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-11-23 03:34:27,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:34:27,890 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-11-23 03:34:27,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 03:34:27,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:27,892 INFO L514 BasicCegarLoop]: trace histogram [8, 4, 4, 1, 1, 1, 1] [2021-11-23 03:34:27,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:28,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:28,117 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:28,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:28,118 INFO L85 PathProgramCache]: Analyzing trace with hash -140644807, now seen corresponding path program 2 times [2021-11-23 03:34:28,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:28,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366165324] [2021-11-23 03:34:28,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:28,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:28,231 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-23 03:34:28,232 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:28,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366165324] [2021-11-23 03:34:28,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366165324] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:34:28,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376740434] [2021-11-23 03:34:28,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:34:28,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:28,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:28,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:34:28,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:34:28,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-23 03:34:28,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:34:28,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:34:28,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-23 03:34:28,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-23 03:34:28,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376740434] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:34:28,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [230738889] [2021-11-23 03:34:28,547 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-23 03:34:28,553 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:34:28,553 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:34:28,555 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:34:28,555 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:34:28,901 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:34:29,006 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '353#(and (<= 268435455 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:34:29,007 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:34:29,007 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:34:29,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-23 03:34:29,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392902408] [2021-11-23 03:34:29,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:34:29,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:34:29,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:29,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:34:29,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:34:29,010 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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) [2021-11-23 03:34:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:29,143 INFO L93 Difference]: Finished difference Result 53 states and 76 transitions. [2021-11-23 03:34:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:34:29,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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 20 [2021-11-23 03:34:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:29,146 INFO L225 Difference]: With dead ends: 53 [2021-11-23 03:34:29,147 INFO L226 Difference]: Without dead ends: 37 [2021-11-23 03:34:29,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-11-23 03:34:29,151 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:29,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:34:29,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-23 03:34:29,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-23 03:34:29,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:34:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2021-11-23 03:34:29,173 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 20 [2021-11-23 03:34:29,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:29,174 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-23 03:34:29,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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) [2021-11-23 03:34:29,182 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2021-11-23 03:34:29,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 03:34:29,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:29,185 INFO L514 BasicCegarLoop]: trace histogram [24, 4, 4, 1, 1, 1, 1] [2021-11-23 03:34:29,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:29,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:29,409 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:29,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:29,410 INFO L85 PathProgramCache]: Analyzing trace with hash 500624441, now seen corresponding path program 3 times [2021-11-23 03:34:29,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:29,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872442861] [2021-11-23 03:34:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:29,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 151 proven. 21 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2021-11-23 03:34:29,658 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:29,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872442861] [2021-11-23 03:34:29,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872442861] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:34:29,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022004719] [2021-11-23 03:34:29,659 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 03:34:29,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:29,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:29,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:34:29,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:34:29,728 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 03:34:29,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:34:29,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 03:34:29,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 304 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 03:34:29,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-23 03:34:30,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022004719] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:34:30,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [414201956] [2021-11-23 03:34:30,222 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-23 03:34:30,222 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:34:30,223 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:34:30,223 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:34:30,223 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:34:30,543 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:34:30,687 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '756#(and (<= 268435455 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:34:30,688 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:34:30,688 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:34:30,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 4] total 17 [2021-11-23 03:34:30,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081373993] [2021-11-23 03:34:30,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:34:30,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 03:34:30,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 03:34:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-11-23 03:34:30,691 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 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) [2021-11-23 03:34:31,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:31,962 INFO L93 Difference]: Finished difference Result 96 states and 115 transitions. [2021-11-23 03:34:31,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-23 03:34:31,963 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 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 36 [2021-11-23 03:34:31,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:31,964 INFO L225 Difference]: With dead ends: 96 [2021-11-23 03:34:31,964 INFO L226 Difference]: Without dead ends: 67 [2021-11-23 03:34:31,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=436, Invalid=4394, Unknown=0, NotChecked=0, Total=4830 [2021-11-23 03:34:31,969 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:31,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 17 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:34:31,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-23 03:34:31,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2021-11-23 03:34:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 49 states have internal predecessors, (55), 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) [2021-11-23 03:34:31,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2021-11-23 03:34:31,983 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 36 [2021-11-23 03:34:31,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:31,984 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2021-11-23 03:34:31,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 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) [2021-11-23 03:34:31,985 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2021-11-23 03:34:31,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 03:34:31,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:31,987 INFO L514 BasicCegarLoop]: trace histogram [35, 5, 5, 1, 1, 1, 1] [2021-11-23 03:34:32,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:32,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:32,213 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:32,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:32,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1861680311, now seen corresponding path program 4 times [2021-11-23 03:34:32,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:32,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135834306] [2021-11-23 03:34:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:32,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:32,516 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 261 proven. 28 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-23 03:34:32,516 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:32,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135834306] [2021-11-23 03:34:32,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135834306] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:34:32,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799317409] [2021-11-23 03:34:32,517 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 03:34:32,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:32,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:32,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:34:32,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:34:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:32,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 03:34:32,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 261 proven. 28 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-23 03:34:32,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 261 proven. 28 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-23 03:34:33,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799317409] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:34:33,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1434110570] [2021-11-23 03:34:33,169 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-23 03:34:33,170 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:34:33,170 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:34:33,170 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:34:33,171 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:34:33,441 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:34:33,578 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1447#(and (<= 268435455 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:34:33,578 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:34:33,578 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:34:33,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2021-11-23 03:34:33,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516235517] [2021-11-23 03:34:33,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:34:33,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-23 03:34:33,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-23 03:34:33,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2021-11-23 03:34:33,581 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 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) [2021-11-23 03:34:33,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:33,721 INFO L93 Difference]: Finished difference Result 105 states and 129 transitions. [2021-11-23 03:34:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:34:33,725 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 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 49 [2021-11-23 03:34:33,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:33,726 INFO L225 Difference]: With dead ends: 105 [2021-11-23 03:34:33,727 INFO L226 Difference]: Without dead ends: 65 [2021-11-23 03:34:33,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2021-11-23 03:34:33,734 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:33,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:34:33,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-23 03:34:33,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-23 03:34:33,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.09375) internal successors, (70), 64 states have internal predecessors, (70), 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) [2021-11-23 03:34:33,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2021-11-23 03:34:33,757 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 49 [2021-11-23 03:34:33,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:33,758 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2021-11-23 03:34:33,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 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) [2021-11-23 03:34:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2021-11-23 03:34:33,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 03:34:33,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:33,764 INFO L514 BasicCegarLoop]: trace histogram [50, 5, 5, 1, 1, 1, 1] [2021-11-23 03:34:33,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:33,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:33,997 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:33,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:33,998 INFO L85 PathProgramCache]: Analyzing trace with hash 982776821, now seen corresponding path program 5 times [2021-11-23 03:34:33,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:33,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601676171] [2021-11-23 03:34:33,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:33,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:34,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-23 03:34:34,275 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:34,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601676171] [2021-11-23 03:34:34,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601676171] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:34:34,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409181817] [2021-11-23 03:34:34,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:34:34,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:34,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:34,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:34:34,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:34:34,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2021-11-23 03:34:34,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:34:34,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 03:34:35,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-23 03:34:35,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-23 03:34:35,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409181817] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:34:35,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [262751107] [2021-11-23 03:34:35,742 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-23 03:34:35,742 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:34:35,742 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:34:35,743 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:34:35,743 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:34:35,976 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:34:36,103 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2174#(and (<= 268435455 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:34:36,104 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:34:36,104 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:34:36,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2021-11-23 03:34:36,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668243912] [2021-11-23 03:34:36,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:34:36,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 03:34:36,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:36,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 03:34:36,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2021-11-23 03:34:36,106 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 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) [2021-11-23 03:34:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:36,864 INFO L93 Difference]: Finished difference Result 164 states and 180 transitions. [2021-11-23 03:34:36,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 03:34:36,865 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 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 64 [2021-11-23 03:34:36,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:36,867 INFO L225 Difference]: With dead ends: 164 [2021-11-23 03:34:36,868 INFO L226 Difference]: Without dead ends: 161 [2021-11-23 03:34:36,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2021-11-23 03:34:36,870 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:36,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 64 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:34:36,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-23 03:34:36,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-11-23 03:34:36,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.0875) internal successors, (174), 160 states have internal predecessors, (174), 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) [2021-11-23 03:34:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 174 transitions. [2021-11-23 03:34:36,929 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 174 transitions. Word has length 64 [2021-11-23 03:34:36,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:36,929 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 174 transitions. [2021-11-23 03:34:36,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 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) [2021-11-23 03:34:36,930 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 174 transitions. [2021-11-23 03:34:36,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-23 03:34:36,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:36,934 INFO L514 BasicCegarLoop]: trace histogram [130, 13, 13, 1, 1, 1, 1] [2021-11-23 03:34:36,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:37,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:37,140 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:34:37,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:37,140 INFO L85 PathProgramCache]: Analyzing trace with hash -149528107, now seen corresponding path program 6 times [2021-11-23 03:34:37,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:37,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280703252] [2021-11-23 03:34:37,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:37,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 10244 backedges. 0 proven. 9529 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-11-23 03:34:37,793 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:37,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280703252] [2021-11-23 03:34:37,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280703252] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:34:37,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267965352] [2021-11-23 03:34:37,794 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 03:34:37,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:34:37,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:37,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:34:37,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 03:34:38,033 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 03:34:38,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:34:38,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 03:34:38,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 10244 backedges. 0 proven. 9529 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-11-23 03:34:38,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 10244 backedges. 0 proven. 9529 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-11-23 03:34:40,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267965352] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:34:40,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2027703559] [2021-11-23 03:34:40,036 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-23 03:34:40,037 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:34:40,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:34:40,038 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:34:40,038 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:34:40,281 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:34:40,439 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3811#(and (<= 268435455 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:34:40,439 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:34:40,439 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:34:40,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 30 [2021-11-23 03:34:40,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280357103] [2021-11-23 03:34:40,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:34:40,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-23 03:34:40,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:40,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-23 03:34:40,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 03:34:40,445 INFO L87 Difference]: Start difference. First operand 161 states and 174 transitions. Second operand has 31 states, 31 states have (on average 2.774193548387097) internal successors, (86), 30 states have internal predecessors, (86), 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) [2021-11-23 03:35:01,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:01,332 INFO L93 Difference]: Finished difference Result 356 states and 392 transitions. [2021-11-23 03:35:01,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 03:35:01,333 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.774193548387097) internal successors, (86), 30 states have internal predecessors, (86), 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 160 [2021-11-23 03:35:01,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:01,337 INFO L225 Difference]: With dead ends: 356 [2021-11-23 03:35:01,337 INFO L226 Difference]: Without dead ends: 353 [2021-11-23 03:35:01,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 460 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=694, Invalid=1467, Unknown=1, NotChecked=0, Total=2162 [2021-11-23 03:35:01,340 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 58 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:01,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 243 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:35:01,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-23 03:35:01,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2021-11-23 03:35:01,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.0852272727272727) internal successors, (382), 352 states have internal predecessors, (382), 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) [2021-11-23 03:35:01,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 382 transitions. [2021-11-23 03:35:01,400 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 382 transitions. Word has length 160 [2021-11-23 03:35:01,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:01,401 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 382 transitions. [2021-11-23 03:35:01,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.774193548387097) internal successors, (86), 30 states have internal predecessors, (86), 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) [2021-11-23 03:35:01,401 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 382 transitions. [2021-11-23 03:35:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-23 03:35:01,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:01,411 INFO L514 BasicCegarLoop]: trace histogram [290, 29, 29, 1, 1, 1, 1] [2021-11-23 03:35:01,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:35:01,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 03:35:01,632 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:35:01,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:01,633 INFO L85 PathProgramCache]: Analyzing trace with hash -846221931, now seen corresponding path program 7 times [2021-11-23 03:35:01,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:35:01,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018131692] [2021-11-23 03:35:01,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:01,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:35:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 51156 backedges. 0 proven. 49561 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-23 03:35:03,442 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:35:03,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018131692] [2021-11-23 03:35:03,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018131692] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:35:03,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373261218] [2021-11-23 03:35:03,443 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 03:35:03,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:35:03,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:35:03,445 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:35:03,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 03:35:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:03,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-23 03:35:03,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:35:05,878 INFO L134 CoverageAnalysis]: Checked inductivity of 51156 backedges. 0 proven. 49561 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-23 03:35:05,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:35:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 51156 backedges. 0 proven. 49561 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-23 03:35:08,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373261218] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:35:08,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1874636125] [2021-11-23 03:35:08,844 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-23 03:35:08,844 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:35:08,845 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:35:08,845 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:35:08,845 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:35:09,041 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:35:09,458 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7416#(and (<= 268435455 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:35:09,458 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:35:09,458 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:35:09,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 62 [2021-11-23 03:35:09,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933412393] [2021-11-23 03:35:09,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:35:09,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-23 03:35:09,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:35:09,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-23 03:35:09,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3198, Unknown=0, NotChecked=0, Total=4290 [2021-11-23 03:35:09,465 INFO L87 Difference]: Start difference. First operand 353 states and 382 transitions. Second operand has 63 states, 63 states have (on average 2.888888888888889) internal successors, (182), 62 states have internal predecessors, (182), 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) [2021-11-23 03:35:59,145 WARN L227 SmtUtils]: Spent 7.86s on a formula simplification. DAG size of input: 118 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:36:26,291 WARN L227 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 114 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:36:58,569 WARN L227 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 110 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:37:44,634 WARN L227 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 102 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:38:08,071 WARN L227 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 98 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:42:56,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:56,323 INFO L93 Difference]: Finished difference Result 740 states and 816 transitions. [2021-11-23 03:42:56,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-23 03:42:56,324 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.888888888888889) internal successors, (182), 62 states have internal predecessors, (182), 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 352 [2021-11-23 03:42:56,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:56,329 INFO L225 Difference]: With dead ends: 740 [2021-11-23 03:42:56,329 INFO L226 Difference]: Without dead ends: 737 [2021-11-23 03:42:56,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1020 SyntacticMatches, 1 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 468.4s TimeCoverageRelationStatistics Valid=2900, Invalid=6010, Unknown=20, NotChecked=0, Total=8930 [2021-11-23 03:42:56,335 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 122 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:56,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 1006 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 03:42:56,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-11-23 03:42:56,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2021-11-23 03:42:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 736 states have (on average 1.0842391304347827) internal successors, (798), 736 states have internal predecessors, (798), 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) [2021-11-23 03:42:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 798 transitions. [2021-11-23 03:42:56,445 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 798 transitions. Word has length 352 [2021-11-23 03:42:56,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:56,446 INFO L470 AbstractCegarLoop]: Abstraction has 737 states and 798 transitions. [2021-11-23 03:42:56,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.888888888888889) internal successors, (182), 62 states have internal predecessors, (182), 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) [2021-11-23 03:42:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 798 transitions. [2021-11-23 03:42:56,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2021-11-23 03:42:56,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:56,469 INFO L514 BasicCegarLoop]: trace histogram [610, 61, 61, 1, 1, 1, 1] [2021-11-23 03:42:56,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 03:42:56,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:42:56,697 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:56,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:56,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2018788629, now seen corresponding path program 8 times [2021-11-23 03:42:56,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:56,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500934002] [2021-11-23 03:42:56,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:56,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:01,188 INFO L134 CoverageAnalysis]: Checked inductivity of 226676 backedges. 0 proven. 223321 refuted. 0 times theorem prover too weak. 3355 trivial. 0 not checked. [2021-11-23 03:43:01,189 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:01,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500934002] [2021-11-23 03:43:01,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500934002] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:43:01,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010196981] [2021-11-23 03:43:01,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:43:01,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:01,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:43:01,194 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:43:01,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af21b76-4c4b-470b-a898-b90bae27bcc7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 03:47:27,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 362 check-sat command(s) [2021-11-23 03:47:27,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:47:27,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 2203 conjuncts, 129 conjunts are in the unsatisfiable core [2021-11-23 03:47:27,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:47:30,521 INFO L134 CoverageAnalysis]: Checked inductivity of 226676 backedges. 0 proven. 223321 refuted. 0 times theorem prover too weak. 3355 trivial. 0 not checked. [2021-11-23 03:47:30,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:48:19,062 INFO L134 CoverageAnalysis]: Checked inductivity of 226676 backedges. 0 proven. 223321 refuted. 0 times theorem prover too weak. 3355 trivial. 0 not checked. [2021-11-23 03:48:19,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010196981] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:48:19,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [212647388] [2021-11-23 03:48:19,065 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-23 03:48:19,065 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:48:19,065 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:48:19,065 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:48:19,065 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:48:19,211 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:48:20,586 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14959#(and (<= 268435455 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:48:20,587 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:48:20,587 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:48:20,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 65] total 128 [2021-11-23 03:48:20,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393146793] [2021-11-23 03:48:20,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:48:20,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2021-11-23 03:48:20,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:20,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2021-11-23 03:48:20,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4416, Invalid=12875, Unknown=1, NotChecked=0, Total=17292 [2021-11-23 03:48:20,597 INFO L87 Difference]: Start difference. First operand 737 states and 798 transitions. Second operand has 129 states, 129 states have (on average 2.9069767441860463) internal successors, (375), 128 states have internal predecessors, (375), 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) [2021-11-23 03:48:25,992 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse60 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296)) (.cse5 (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse7 (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse19 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse6 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296)) (.cse33 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse22 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse30 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse0 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse31 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296)) (.cse40 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296)) (.cse17 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse21 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse11 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296)) (.cse46 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296)) (.cse13 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296)) (.cse47 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse51 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse37 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse39 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296)) (.cse38 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse41 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse53 (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse28 (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse26 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse43 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse42 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse49 (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse8 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse35 (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse50 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse45 (mod .cse60 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296)) (.cse32 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse14 (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse56 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296)) (.cse52 (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse3 (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse54 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse57 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse55 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse58 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296)) (.cse4 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296)) (.cse36 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse59 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse44 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296)) (.cse48 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296)) (.cse2 (= (mod .cse60 2) 0))) (and (or (< .cse0 268435455) (<= 268435455 .cse1) .cse2) (or (<= 268435455 .cse3) (< (mod (+ 59 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse2) (or .cse4 (< .cse5 268435455) (<= 268435455 .cse6)) (or (<= 268435455 .cse7) .cse4 (< .cse8 268435455)) (or (<= 268435455 .cse9) .cse4 (< .cse10 268435455)) (or (< .cse11 268435455) (<= 268435455 .cse12) .cse2) (or (< .cse12 268435455) (<= 268435455 .cse13) .cse4) (or (< .cse14 268435455) (<= 268435455 .cse15) .cse2) (or (< .cse16 268435455) (<= 268435455 .cse17) .cse2) (or (<= 268435455 .cse18) .cse4 (< .cse19 268435455)) (or (< .cse20 268435455) (<= 268435455 .cse5) .cse2) (or (<= 268435455 .cse21) (< .cse22 268435455) .cse2) (or (<= 268435455 .cse23) (< .cse24 268435455) .cse2) (or (< .cse7 268435455) .cse2) (or (< .cse9 268435455) (<= 268435455 .cse19) .cse2) (or (< .cse1 268435455) (<= 268435455 .cse25) .cse4) (or (<= 268435455 .cse26) .cse4 (< .cse27 268435455)) (or .cse4 (<= 268435455 .cse28) (< .cse29 268435455)) (or (<= 268435455 .cse30) (< .cse31 268435455) .cse2) (or (<= 268435455 .cse32) .cse2 (< .cse6 268435455)) (or (< .cse25 268435455) (<= 268435455 .cse33) .cse2) (or (< .cse15 268435455) (<= 268435455 .cse34) .cse4) (or (<= 268435455 .cse35) .cse4 (< .cse33 268435455)) (or (< .cse36 268435455) .cse4 (<= 268435455 .cse37)) (or (<= 268435455 .cse10) (< .cse38 268435455) .cse2) (or (<= 268435455 .cse22) .cse4 (< .cse39 268435455)) (or (<= 268435455 .cse40) (< .cse41 268435455) .cse2) (or (< .cse30 268435455) .cse4 (<= 268435455 .cse42)) (or (< .cse43 268435455) (<= 268435455 .cse0) .cse4) (or (<= 268435455 .cse31) (< .cse44 268435455) .cse4) (or (<= 268435455 .cse45) .cse4 (< .cse40 268435455)) (or (<= 268435455 .cse46) (< .cse17 268435455) .cse4) (or (< .cse47 268435455) (<= 268435455 .cse48) .cse4) (or (< .cse21 268435455) .cse4 (<= 268435455 .cse11)) (or .cse4 (<= 268435455 .cse49) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or (<= 268435455 .cse27) (< .cse46 268435455) .cse2) (or (< .cse13 268435455) (<= 268435455 .cse50) .cse2) (or (< .cse34 268435455) (<= 268435455 .cse47) .cse2) (or .cse4 (<= 268435455 .cse24) (< .cse51 268435455)) (or (<= 268435455 .cse51) .cse2 (< .cse37 268435455)) (or (<= 268435455 .cse39) (< .cse52 268435455) .cse2) (or (< .cse53 268435455) .cse4) (or (< .cse54 268435455) (<= 268435455 .cse38) .cse4) (or (< .cse23 268435455) (<= 268435455 .cse41) .cse4) (or (<= 268435455 .cse53) (< .cse28 268435455) .cse2) (or (< .cse26 268435455) (<= 268435455 .cse55) .cse2) (or (<= 268435455 .cse43) (< .cse42 268435455) .cse2) (or (< .cse49 268435455) (<= 268435455 .cse56) .cse2) (or (<= 268435455 .cse8) (< .cse35 268435455) .cse2) (or (< .cse50 268435455) .cse4 (<= 268435455 .cse57)) (or (< .cse45 268435455) .cse2) (or (<= 268435455 .cse16) .cse4 (< .cse32 268435455)) (or (<= 268435455 .cse29) (< .cse18 268435455) .cse2) (or (<= 268435455 .cse14) (< .cse56 268435455) .cse4) (or (<= 268435455 .cse52) .cse4 (< .cse3 268435455)) (or (<= 268435455 .cse58) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 61) 4294967296) 268435455) .cse2) (or (<= 268435455 .cse54) (< .cse57 268435455) .cse2) (or (< .cse55 268435455) .cse4 (<= 268435455 .cse59)) (or (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455) .cse4) (or (< .cse58 268435455) .cse4 (<= 268435455 .cse20)) (or (<= 268435455 .cse36) (< .cse59 268435455) .cse2) (or (<= 268435455 .cse44) (< .cse48 268435455) .cse2)))) is different from false [2021-11-23 03:48:28,011 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse60 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296)) (.cse5 (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse7 (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse19 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse6 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296)) (.cse33 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse22 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse30 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse0 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse31 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296)) (.cse40 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296)) (.cse17 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse21 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse11 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296)) (.cse46 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296)) (.cse13 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296)) (.cse47 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse51 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse37 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse39 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296)) (.cse38 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse41 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse53 (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse28 (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse26 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse43 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse42 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse49 (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse8 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse35 (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse50 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse45 (mod .cse60 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296)) (.cse32 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse14 (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse56 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296)) (.cse52 (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse3 (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse54 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse57 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse55 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse58 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296)) (.cse4 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296)) (.cse36 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse59 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse44 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296)) (.cse48 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296)) (.cse2 (= (mod .cse60 2) 0))) (and (or (< .cse0 268435455) (<= 268435455 .cse1) .cse2) (or (<= 268435455 .cse3) (< (mod (+ 59 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse2) (or .cse4 (< .cse5 268435455) (<= 268435455 .cse6)) (or (<= 268435455 .cse7) .cse4 (< .cse8 268435455)) (or (<= 268435455 .cse9) .cse4 (< .cse10 268435455)) (or (< .cse11 268435455) (<= 268435455 .cse12) .cse2) (or (< .cse12 268435455) (<= 268435455 .cse13) .cse4) (or (< .cse14 268435455) (<= 268435455 .cse15) .cse2) (or (< .cse16 268435455) (<= 268435455 .cse17) .cse2) (or (<= 268435455 .cse18) .cse4 (< .cse19 268435455)) (or (< .cse20 268435455) (<= 268435455 .cse5) .cse2) (or (<= 268435455 .cse21) (< .cse22 268435455) .cse2) (or (<= 268435455 .cse23) (< .cse24 268435455) .cse2) (or (< .cse7 268435455) .cse2) (or (< .cse9 268435455) (<= 268435455 .cse19) .cse2) (or (< .cse1 268435455) (<= 268435455 .cse25) .cse4) (or (<= 268435455 .cse26) .cse4 (< .cse27 268435455)) (or .cse4 (<= 268435455 .cse28) (< .cse29 268435455)) (or (<= 268435455 .cse30) (< .cse31 268435455) .cse2) (or (<= 268435455 .cse32) .cse2 (< .cse6 268435455)) (or (< .cse25 268435455) (<= 268435455 .cse33) .cse2) (or (< .cse15 268435455) (<= 268435455 .cse34) .cse4) (or (<= 268435455 .cse35) .cse4 (< .cse33 268435455)) (or (< .cse36 268435455) .cse4 (<= 268435455 .cse37)) (or (<= 268435455 .cse10) (< .cse38 268435455) .cse2) (or (<= 268435455 .cse22) .cse4 (< .cse39 268435455)) (or (<= 268435455 .cse40) (< .cse41 268435455) .cse2) (or (< .cse30 268435455) .cse4 (<= 268435455 .cse42)) (or (< .cse43 268435455) (<= 268435455 .cse0) .cse4) (or (<= 268435455 .cse31) (< .cse44 268435455) .cse4) (or (<= 268435455 .cse45) .cse4 (< .cse40 268435455)) (or (<= 268435455 .cse46) (< .cse17 268435455) .cse4) (or (< .cse47 268435455) (<= 268435455 .cse48) .cse4) (or (< .cse21 268435455) .cse4 (<= 268435455 .cse11)) (or .cse4 (<= 268435455 .cse49) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or (<= 268435455 .cse27) (< .cse46 268435455) .cse2) (or (< .cse13 268435455) (<= 268435455 .cse50) .cse2) (or (< .cse34 268435455) (<= 268435455 .cse47) .cse2) (or .cse4 (<= 268435455 .cse24) (< .cse51 268435455)) (or (<= 268435455 .cse51) .cse2 (< .cse37 268435455)) (or (<= 268435455 .cse39) (< .cse52 268435455) .cse2) (or (< .cse53 268435455) .cse4) (or (< .cse54 268435455) (<= 268435455 .cse38) .cse4) (or (< .cse23 268435455) (<= 268435455 .cse41) .cse4) (or (<= 268435455 .cse53) (< .cse28 268435455) .cse2) (or (< .cse26 268435455) (<= 268435455 .cse55) .cse2) (or (<= 268435455 .cse43) (< .cse42 268435455) .cse2) (or (< .cse49 268435455) (<= 268435455 .cse56) .cse2) (or (<= 268435455 .cse8) (< .cse35 268435455) .cse2) (or (< .cse50 268435455) .cse4 (<= 268435455 .cse57)) (or (< .cse45 268435455) .cse2) (or (<= 268435455 .cse16) .cse4 (< .cse32 268435455)) (or (<= 268435455 .cse29) (< .cse18 268435455) .cse2) (or (<= 268435455 .cse14) (< .cse56 268435455) .cse4) (or (<= 268435455 .cse52) .cse4 (< .cse3 268435455)) (or (<= 268435455 .cse58) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 61) 4294967296) 268435455) .cse2) (or (<= 268435455 .cse54) (< .cse57 268435455) .cse2) (or (< .cse55 268435455) .cse4 (<= 268435455 .cse59)) (or (< .cse58 268435455) .cse4 (<= 268435455 .cse20)) (or (<= 268435455 .cse36) (< .cse59 268435455) .cse2) (or (<= 268435455 .cse44) (< .cse48 268435455) .cse2)))) is different from false [2021-11-23 03:48:30,034 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse60 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse7 (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296)) (.cse5 (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse20 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse6 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296)) (.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse23 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse31 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse0 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse32 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296)) (.cse41 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296)) (.cse18 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse22 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse12 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse28 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296)) (.cse47 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296)) (.cse14 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse35 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296)) (.cse48 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse52 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse38 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse40 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296)) (.cse39 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse42 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse54 (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse29 (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse27 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse44 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse43 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse50 (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse8 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse36 (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse51 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse46 (mod .cse60 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296)) (.cse33 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse15 (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse57 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296)) (.cse53 (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse3 (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse55 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse58 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse56 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse9 (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296)) (.cse4 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296)) (.cse37 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse59 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse45 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296)) (.cse49 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296)) (.cse2 (= (mod .cse60 2) 0))) (and (or (< .cse0 268435455) (<= 268435455 .cse1) .cse2) (or (<= 268435455 .cse3) (< (mod (+ 59 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse2) (or .cse4 (< .cse5 268435455) (<= 268435455 .cse6)) (or (<= 268435455 .cse7) .cse4 (< .cse8 268435455)) (or (<= 268435455 .cse9) (< .cse7 268435455) .cse2) (or (<= 268435455 .cse10) .cse4 (< .cse11 268435455)) (or (< .cse12 268435455) (<= 268435455 .cse13) .cse2) (or (< .cse13 268435455) (<= 268435455 .cse14) .cse4) (or (< .cse15 268435455) (<= 268435455 .cse16) .cse2) (or (< .cse17 268435455) (<= 268435455 .cse18) .cse2) (or (<= 268435455 .cse19) .cse4 (< .cse20 268435455)) (or (< .cse21 268435455) (<= 268435455 .cse5) .cse2) (or (<= 268435455 .cse22) (< .cse23 268435455) .cse2) (or (<= 268435455 .cse24) (< .cse25 268435455) .cse2) (or (< .cse10 268435455) (<= 268435455 .cse20) .cse2) (or (< .cse1 268435455) (<= 268435455 .cse26) .cse4) (or (<= 268435455 .cse27) .cse4 (< .cse28 268435455)) (or .cse4 (<= 268435455 .cse29) (< .cse30 268435455)) (or (<= 268435455 .cse31) (< .cse32 268435455) .cse2) (or (<= 268435455 .cse33) .cse2 (< .cse6 268435455)) (or (< .cse26 268435455) (<= 268435455 .cse34) .cse2) (or (< .cse16 268435455) (<= 268435455 .cse35) .cse4) (or (<= 268435455 .cse36) .cse4 (< .cse34 268435455)) (or (< .cse37 268435455) .cse4 (<= 268435455 .cse38)) (or (<= 268435455 .cse11) (< .cse39 268435455) .cse2) (or (<= 268435455 .cse23) .cse4 (< .cse40 268435455)) (or (<= 268435455 .cse41) (< .cse42 268435455) .cse2) (or (< .cse31 268435455) .cse4 (<= 268435455 .cse43)) (or (< .cse44 268435455) (<= 268435455 .cse0) .cse4) (or (<= 268435455 .cse32) (< .cse45 268435455) .cse4) (or (<= 268435455 .cse46) .cse4 (< .cse41 268435455)) (or (<= 268435455 .cse47) (< .cse18 268435455) .cse4) (or (< .cse48 268435455) (<= 268435455 .cse49) .cse4) (or (< .cse22 268435455) .cse4 (<= 268435455 .cse12)) (or .cse4 (<= 268435455 .cse50) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or (<= 268435455 .cse28) (< .cse47 268435455) .cse2) (or (< .cse14 268435455) (<= 268435455 .cse51) .cse2) (or (< .cse35 268435455) (<= 268435455 .cse48) .cse2) (or .cse4 (<= 268435455 .cse25) (< .cse52 268435455)) (or (<= 268435455 .cse52) .cse2 (< .cse38 268435455)) (or (<= 268435455 .cse40) (< .cse53 268435455) .cse2) (or (< .cse54 268435455) .cse4) (or (< .cse55 268435455) (<= 268435455 .cse39) .cse4) (or (< .cse24 268435455) (<= 268435455 .cse42) .cse4) (or (<= 268435455 .cse54) (< .cse29 268435455) .cse2) (or (< .cse27 268435455) (<= 268435455 .cse56) .cse2) (or (<= 268435455 .cse44) (< .cse43 268435455) .cse2) (or (< .cse50 268435455) (<= 268435455 .cse57) .cse2) (or (<= 268435455 .cse8) (< .cse36 268435455) .cse2) (or (< .cse51 268435455) .cse4 (<= 268435455 .cse58)) (or (< .cse46 268435455) .cse2) (or (<= 268435455 .cse17) .cse4 (< .cse33 268435455)) (or (<= 268435455 .cse30) (< .cse19 268435455) .cse2) (or (<= 268435455 .cse15) (< .cse57 268435455) .cse4) (or (<= 268435455 .cse53) .cse4 (< .cse3 268435455)) (or (<= 268435455 .cse55) (< .cse58 268435455) .cse2) (or (< .cse56 268435455) .cse4 (<= 268435455 .cse59)) (or (< .cse9 268435455) .cse4) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) .cse4 (<= 268435455 .cse21)) (or (<= 268435455 .cse37) (< .cse59 268435455) .cse2) (or (<= 268435455 .cse45) (< .cse49 268435455) .cse2)))) is different from false [2021-11-23 03:48:32,058 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse59 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296)) (.cse5 (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse7 (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse19 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse6 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296)) (.cse33 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse22 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse30 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse0 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse31 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296)) (.cse40 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296)) (.cse17 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse21 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse11 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296)) (.cse46 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296)) (.cse13 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296)) (.cse47 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse51 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse37 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse39 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296)) (.cse38 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse41 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse53 (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse28 (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse26 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse43 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse42 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse49 (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse8 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse35 (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse50 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse45 (mod .cse59 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296)) (.cse32 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse14 (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse56 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296)) (.cse52 (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse3 (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse54 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse57 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse55 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse4 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296)) (.cse36 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse58 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse44 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296)) (.cse48 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296)) (.cse2 (= (mod .cse59 2) 0))) (and (or (< .cse0 268435455) (<= 268435455 .cse1) .cse2) (or (<= 268435455 .cse3) (< (mod (+ 59 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse2) (or .cse4 (< .cse5 268435455) (<= 268435455 .cse6)) (or (<= 268435455 .cse7) .cse4 (< .cse8 268435455)) (or (<= 268435455 .cse9) .cse4 (< .cse10 268435455)) (or (< .cse11 268435455) (<= 268435455 .cse12) .cse2) (or (< .cse12 268435455) (<= 268435455 .cse13) .cse4) (or (< .cse14 268435455) (<= 268435455 .cse15) .cse2) (or (< .cse16 268435455) (<= 268435455 .cse17) .cse2) (or (<= 268435455 .cse18) .cse4 (< .cse19 268435455)) (or (< .cse20 268435455) (<= 268435455 .cse5) .cse2) (or (<= 268435455 .cse21) (< .cse22 268435455) .cse2) (or (<= 268435455 .cse23) (< .cse24 268435455) .cse2) (or (< .cse7 268435455) .cse2) (or (< .cse9 268435455) (<= 268435455 .cse19) .cse2) (or (< .cse1 268435455) (<= 268435455 .cse25) .cse4) (or (<= 268435455 .cse26) .cse4 (< .cse27 268435455)) (or .cse4 (<= 268435455 .cse28) (< .cse29 268435455)) (or (<= 268435455 .cse30) (< .cse31 268435455) .cse2) (or (<= 268435455 .cse32) .cse2 (< .cse6 268435455)) (or (< .cse25 268435455) (<= 268435455 .cse33) .cse2) (or (< .cse15 268435455) (<= 268435455 .cse34) .cse4) (or (<= 268435455 .cse35) .cse4 (< .cse33 268435455)) (or (< .cse36 268435455) .cse4 (<= 268435455 .cse37)) (or (<= 268435455 .cse10) (< .cse38 268435455) .cse2) (or (<= 268435455 .cse22) .cse4 (< .cse39 268435455)) (or (<= 268435455 .cse40) (< .cse41 268435455) .cse2) (or (< .cse30 268435455) .cse4 (<= 268435455 .cse42)) (or (< .cse43 268435455) (<= 268435455 .cse0) .cse4) (or (<= 268435455 .cse31) (< .cse44 268435455) .cse4) (or (<= 268435455 .cse45) .cse4 (< .cse40 268435455)) (or (<= 268435455 .cse46) (< .cse17 268435455) .cse4) (or (< .cse47 268435455) (<= 268435455 .cse48) .cse4) (or (< .cse21 268435455) .cse4 (<= 268435455 .cse11)) (or .cse4 (<= 268435455 .cse49) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or (<= 268435455 .cse27) (< .cse46 268435455) .cse2) (or (< .cse13 268435455) (<= 268435455 .cse50) .cse2) (or (< .cse34 268435455) (<= 268435455 .cse47) .cse2) (or .cse4 (<= 268435455 .cse24) (< .cse51 268435455)) (or (<= 268435455 .cse51) .cse2 (< .cse37 268435455)) (or (<= 268435455 .cse39) (< .cse52 268435455) .cse2) (or (< .cse53 268435455) .cse4) (or (< .cse54 268435455) (<= 268435455 .cse38) .cse4) (or (< .cse23 268435455) (<= 268435455 .cse41) .cse4) (or (<= 268435455 .cse53) (< .cse28 268435455) .cse2) (or (< .cse26 268435455) (<= 268435455 .cse55) .cse2) (or (<= 268435455 .cse43) (< .cse42 268435455) .cse2) (or (< .cse49 268435455) (<= 268435455 .cse56) .cse2) (or (<= 268435455 .cse8) (< .cse35 268435455) .cse2) (or (< .cse50 268435455) .cse4 (<= 268435455 .cse57)) (or (< .cse45 268435455) .cse2) (or (<= 268435455 .cse16) .cse4 (< .cse32 268435455)) (or (<= 268435455 .cse29) (< .cse18 268435455) .cse2) (or (<= 268435455 .cse14) (< .cse56 268435455) .cse4) (or (<= 268435455 .cse52) .cse4 (< .cse3 268435455)) (or (<= 268435455 .cse54) (< .cse57 268435455) .cse2) (or (< .cse55 268435455) .cse4 (<= 268435455 .cse58)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) .cse4 (<= 268435455 .cse20)) (or (<= 268435455 .cse36) (< .cse58 268435455) .cse2) (or (<= 268435455 .cse44) (< .cse48 268435455) .cse2)))) is different from false [2021-11-23 03:48:34,122 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse59 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse7 (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296)) (.cse5 (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse20 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse6 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296)) (.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse23 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse31 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse0 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse32 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296)) (.cse41 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296)) (.cse18 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse22 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse12 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse28 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296)) (.cse47 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296)) (.cse14 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse35 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296)) (.cse48 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse51 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse38 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse40 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296)) (.cse39 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse42 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse53 (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse29 (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse27 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse44 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse43 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse8 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse36 (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse50 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse46 (mod .cse59 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296)) (.cse33 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse15 (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse56 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296)) (.cse52 (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse3 (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse54 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse57 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse55 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse9 (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296)) (.cse4 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296)) (.cse37 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse58 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse45 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296)) (.cse49 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296)) (.cse2 (= (mod .cse59 2) 0))) (and (or (< .cse0 268435455) (<= 268435455 .cse1) .cse2) (or (<= 268435455 .cse3) (< (mod (+ 59 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse2) (or .cse4 (< .cse5 268435455) (<= 268435455 .cse6)) (or (<= 268435455 .cse7) .cse4 (< .cse8 268435455)) (or (<= 268435455 .cse9) (< .cse7 268435455) .cse2) (or (<= 268435455 .cse10) .cse4 (< .cse11 268435455)) (or (< .cse12 268435455) (<= 268435455 .cse13) .cse2) (or (< .cse13 268435455) (<= 268435455 .cse14) .cse4) (or (< .cse15 268435455) (<= 268435455 .cse16) .cse2) (or (< .cse17 268435455) (<= 268435455 .cse18) .cse2) (or (<= 268435455 .cse19) .cse4 (< .cse20 268435455)) (or (< .cse21 268435455) (<= 268435455 .cse5) .cse2) (or (<= 268435455 .cse22) (< .cse23 268435455) .cse2) (or (<= 268435455 .cse24) (< .cse25 268435455) .cse2) (or (< .cse10 268435455) (<= 268435455 .cse20) .cse2) (or (< .cse1 268435455) (<= 268435455 .cse26) .cse4) (or (<= 268435455 .cse27) .cse4 (< .cse28 268435455)) (or .cse4 (<= 268435455 .cse29) (< .cse30 268435455)) (or (<= 268435455 .cse31) (< .cse32 268435455) .cse2) (or (<= 268435455 .cse33) .cse2 (< .cse6 268435455)) (or (< .cse26 268435455) (<= 268435455 .cse34) .cse2) (or (< .cse16 268435455) (<= 268435455 .cse35) .cse4) (or (<= 268435455 .cse36) .cse4 (< .cse34 268435455)) (or (< .cse37 268435455) .cse4 (<= 268435455 .cse38)) (or (<= 268435455 .cse11) (< .cse39 268435455) .cse2) (or (<= 268435455 .cse23) .cse4 (< .cse40 268435455)) (or (<= 268435455 .cse41) (< .cse42 268435455) .cse2) (or (< .cse31 268435455) .cse4 (<= 268435455 .cse43)) (or (< .cse44 268435455) (<= 268435455 .cse0) .cse4) (or (<= 268435455 .cse32) (< .cse45 268435455) .cse4) (or (<= 268435455 .cse46) .cse4 (< .cse41 268435455)) (or (<= 268435455 .cse47) (< .cse18 268435455) .cse4) (or (< .cse48 268435455) (<= 268435455 .cse49) .cse4) (or (< .cse22 268435455) .cse4 (<= 268435455 .cse12)) (or (<= 268435455 .cse28) (< .cse47 268435455) .cse2) (or (< .cse14 268435455) (<= 268435455 .cse50) .cse2) (or (< .cse35 268435455) (<= 268435455 .cse48) .cse2) (or .cse4 (<= 268435455 .cse25) (< .cse51 268435455)) (or (<= 268435455 .cse51) .cse2 (< .cse38 268435455)) (or (<= 268435455 .cse40) (< .cse52 268435455) .cse2) (or (< .cse53 268435455) .cse4) (or (< .cse54 268435455) (<= 268435455 .cse39) .cse4) (or (< .cse24 268435455) (<= 268435455 .cse42) .cse4) (or (<= 268435455 .cse53) (< .cse29 268435455) .cse2) (or (< .cse27 268435455) (<= 268435455 .cse55) .cse2) (or (<= 268435455 .cse44) (< .cse43 268435455) .cse2) (or (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (<= 268435455 .cse56) .cse2) (or (<= 268435455 .cse8) (< .cse36 268435455) .cse2) (or (< .cse50 268435455) .cse4 (<= 268435455 .cse57)) (or (< .cse46 268435455) .cse2) (or (<= 268435455 .cse17) .cse4 (< .cse33 268435455)) (or (<= 268435455 .cse30) (< .cse19 268435455) .cse2) (or (<= 268435455 .cse15) (< .cse56 268435455) .cse4) (or (<= 268435455 .cse52) .cse4 (< .cse3 268435455)) (or (<= 268435455 .cse54) (< .cse57 268435455) .cse2) (or (< .cse55 268435455) .cse4 (<= 268435455 .cse58)) (or (< .cse9 268435455) .cse4) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) .cse4 (<= 268435455 .cse21)) (or (<= 268435455 .cse37) (< .cse58 268435455) .cse2) (or (<= 268435455 .cse45) (< .cse49 268435455) .cse2)))) is different from false [2021-11-23 03:48:36,140 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse58 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296)) (.cse5 (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse7 (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse19 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse6 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296)) (.cse33 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse22 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse30 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse0 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse31 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296)) (.cse40 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296)) (.cse17 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse21 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse11 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296)) (.cse46 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296)) (.cse13 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296)) (.cse47 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse50 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse37 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse39 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296)) (.cse38 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse41 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse52 (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse28 (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse26 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse43 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse42 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse8 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse35 (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse49 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse45 (mod .cse58 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296)) (.cse32 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse14 (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse55 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296)) (.cse51 (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse3 (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse53 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse56 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse54 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse4 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296)) (.cse36 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse57 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse44 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296)) (.cse48 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296)) (.cse2 (= (mod .cse58 2) 0))) (and (or (< .cse0 268435455) (<= 268435455 .cse1) .cse2) (or (<= 268435455 .cse3) (< (mod (+ 59 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse2) (or .cse4 (< .cse5 268435455) (<= 268435455 .cse6)) (or (<= 268435455 .cse7) .cse4 (< .cse8 268435455)) (or (<= 268435455 .cse9) .cse4 (< .cse10 268435455)) (or (< .cse11 268435455) (<= 268435455 .cse12) .cse2) (or (< .cse12 268435455) (<= 268435455 .cse13) .cse4) (or (< .cse14 268435455) (<= 268435455 .cse15) .cse2) (or (< .cse16 268435455) (<= 268435455 .cse17) .cse2) (or (<= 268435455 .cse18) .cse4 (< .cse19 268435455)) (or (< .cse20 268435455) (<= 268435455 .cse5) .cse2) (or (<= 268435455 .cse21) (< .cse22 268435455) .cse2) (or (<= 268435455 .cse23) (< .cse24 268435455) .cse2) (or (< .cse7 268435455) .cse2) (or (< .cse9 268435455) (<= 268435455 .cse19) .cse2) (or (< .cse1 268435455) (<= 268435455 .cse25) .cse4) (or (<= 268435455 .cse26) .cse4 (< .cse27 268435455)) (or .cse4 (<= 268435455 .cse28) (< .cse29 268435455)) (or (<= 268435455 .cse30) (< .cse31 268435455) .cse2) (or (<= 268435455 .cse32) .cse2 (< .cse6 268435455)) (or (< .cse25 268435455) (<= 268435455 .cse33) .cse2) (or (< .cse15 268435455) (<= 268435455 .cse34) .cse4) (or (<= 268435455 .cse35) .cse4 (< .cse33 268435455)) (or (< .cse36 268435455) .cse4 (<= 268435455 .cse37)) (or (<= 268435455 .cse10) (< .cse38 268435455) .cse2) (or (<= 268435455 .cse22) .cse4 (< .cse39 268435455)) (or (<= 268435455 .cse40) (< .cse41 268435455) .cse2) (or (< .cse30 268435455) .cse4 (<= 268435455 .cse42)) (or (< .cse43 268435455) (<= 268435455 .cse0) .cse4) (or (<= 268435455 .cse31) (< .cse44 268435455) .cse4) (or (<= 268435455 .cse45) .cse4 (< .cse40 268435455)) (or (<= 268435455 .cse46) (< .cse17 268435455) .cse4) (or (< .cse47 268435455) (<= 268435455 .cse48) .cse4) (or (< .cse21 268435455) .cse4 (<= 268435455 .cse11)) (or (<= 268435455 .cse27) (< .cse46 268435455) .cse2) (or (< .cse13 268435455) (<= 268435455 .cse49) .cse2) (or (< .cse34 268435455) (<= 268435455 .cse47) .cse2) (or .cse4 (<= 268435455 .cse24) (< .cse50 268435455)) (or (<= 268435455 .cse50) .cse2 (< .cse37 268435455)) (or (<= 268435455 .cse39) (< .cse51 268435455) .cse2) (or (< .cse52 268435455) .cse4) (or (< .cse53 268435455) (<= 268435455 .cse38) .cse4) (or (< .cse23 268435455) (<= 268435455 .cse41) .cse4) (or (<= 268435455 .cse52) (< .cse28 268435455) .cse2) (or (< .cse26 268435455) (<= 268435455 .cse54) .cse2) (or (<= 268435455 .cse43) (< .cse42 268435455) .cse2) (or (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (<= 268435455 .cse55) .cse2) (or (<= 268435455 .cse8) (< .cse35 268435455) .cse2) (or (< .cse49 268435455) .cse4 (<= 268435455 .cse56)) (or (< .cse45 268435455) .cse2) (or (<= 268435455 .cse16) .cse4 (< .cse32 268435455)) (or (<= 268435455 .cse29) (< .cse18 268435455) .cse2) (or (<= 268435455 .cse14) (< .cse55 268435455) .cse4) (or (<= 268435455 .cse51) .cse4 (< .cse3 268435455)) (or (<= 268435455 .cse53) (< .cse56 268435455) .cse2) (or (< .cse54 268435455) .cse4 (<= 268435455 .cse57)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) .cse4 (<= 268435455 .cse20)) (or (<= 268435455 .cse36) (< .cse57 268435455) .cse2) (or (<= 268435455 .cse44) (< .cse48 268435455) .cse2)))) is different from false [2021-11-23 03:48:38,161 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse58 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse6 (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296)) (.cse4 (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse19 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse5 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296)) (.cse33 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse22 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse30 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse0 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse31 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296)) (.cse40 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296)) (.cse17 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse21 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse11 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296)) (.cse46 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296)) (.cse13 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296)) (.cse47 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse50 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse37 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse39 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296)) (.cse38 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse41 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse52 (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse28 (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse26 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse43 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse42 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse7 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse35 (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse49 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse45 (mod .cse58 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296)) (.cse32 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse14 (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse55 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296)) (.cse51 (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse53 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse56 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse54 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse8 (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296)) (.cse3 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296)) (.cse36 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse57 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse44 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296)) (.cse48 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296)) (.cse2 (= (mod .cse58 2) 0))) (and (or (< .cse0 268435455) (<= 268435455 .cse1) .cse2) (or .cse3 (< .cse4 268435455) (<= 268435455 .cse5)) (or (<= 268435455 .cse6) .cse3 (< .cse7 268435455)) (or (<= 268435455 .cse8) (< .cse6 268435455) .cse2) (or (<= 268435455 .cse9) .cse3 (< .cse10 268435455)) (or (< .cse11 268435455) (<= 268435455 .cse12) .cse2) (or (< .cse12 268435455) (<= 268435455 .cse13) .cse3) (or (< .cse14 268435455) (<= 268435455 .cse15) .cse2) (or (< .cse16 268435455) (<= 268435455 .cse17) .cse2) (or (<= 268435455 .cse18) .cse3 (< .cse19 268435455)) (or (< .cse20 268435455) (<= 268435455 .cse4) .cse2) (or (<= 268435455 .cse21) (< .cse22 268435455) .cse2) (or (<= 268435455 .cse23) (< .cse24 268435455) .cse2) (or (< .cse9 268435455) (<= 268435455 .cse19) .cse2) (or (< .cse1 268435455) (<= 268435455 .cse25) .cse3) (or (<= 268435455 .cse26) .cse3 (< .cse27 268435455)) (or .cse3 (<= 268435455 .cse28) (< .cse29 268435455)) (or (<= 268435455 .cse30) (< .cse31 268435455) .cse2) (or (<= 268435455 .cse32) .cse2 (< .cse5 268435455)) (or (< .cse25 268435455) (<= 268435455 .cse33) .cse2) (or (< .cse15 268435455) (<= 268435455 .cse34) .cse3) (or (<= 268435455 .cse35) .cse3 (< .cse33 268435455)) (or (< .cse36 268435455) .cse3 (<= 268435455 .cse37)) (or (<= 268435455 .cse10) (< .cse38 268435455) .cse2) (or (<= 268435455 .cse22) .cse3 (< .cse39 268435455)) (or (<= 268435455 .cse40) (< .cse41 268435455) .cse2) (or (< .cse30 268435455) .cse3 (<= 268435455 .cse42)) (or (< .cse43 268435455) (<= 268435455 .cse0) .cse3) (or (<= 268435455 .cse31) (< .cse44 268435455) .cse3) (or (<= 268435455 .cse45) .cse3 (< .cse40 268435455)) (or (<= 268435455 .cse46) (< .cse17 268435455) .cse3) (or (< .cse47 268435455) (<= 268435455 .cse48) .cse3) (or (< .cse21 268435455) .cse3 (<= 268435455 .cse11)) (or (<= 268435455 .cse27) (< .cse46 268435455) .cse2) (or (< .cse13 268435455) (<= 268435455 .cse49) .cse2) (or (< .cse34 268435455) (<= 268435455 .cse47) .cse2) (or .cse3 (<= 268435455 .cse24) (< .cse50 268435455)) (or (<= 268435455 .cse50) .cse2 (< .cse37 268435455)) (or (<= 268435455 .cse39) (< .cse51 268435455) .cse2) (or (< .cse52 268435455) .cse3) (or (< .cse53 268435455) (<= 268435455 .cse38) .cse3) (or (< .cse23 268435455) (<= 268435455 .cse41) .cse3) (or (<= 268435455 .cse52) (< .cse28 268435455) .cse2) (or (< .cse26 268435455) (<= 268435455 .cse54) .cse2) (or (<= 268435455 .cse43) (< .cse42 268435455) .cse2) (or (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (<= 268435455 .cse55) .cse2) (or (<= 268435455 .cse7) (< .cse35 268435455) .cse2) (or (< .cse49 268435455) .cse3 (<= 268435455 .cse56)) (or (< .cse45 268435455) .cse2) (or (<= 268435455 .cse16) .cse3 (< .cse32 268435455)) (or (<= 268435455 .cse29) (< .cse18 268435455) .cse2) (or (<= 268435455 .cse14) (< .cse55 268435455) .cse3) (or (<= 268435455 .cse51) .cse3 (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (<= 268435455 .cse53) (< .cse56 268435455) .cse2) (or (< .cse54 268435455) .cse3 (<= 268435455 .cse57)) (or (< .cse8 268435455) .cse3) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) .cse3 (<= 268435455 .cse20)) (or (<= 268435455 .cse36) (< .cse57 268435455) .cse2) (or (<= 268435455 .cse44) (< .cse48 268435455) .cse2)))) is different from false