./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/functions_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/functions_1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P --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 3c699f32b26271d9b8672d2685c3f1aa3d3ad54df32baf7d1d77d9a96ddd2517 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:35:52,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:35:52,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:35:52,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:35:52,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:35:52,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:35:52,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:35:52,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:35:52,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:35:52,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:35:52,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:35:52,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:35:52,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:35:52,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:35:52,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:35:52,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:35:52,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:35:52,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:35:52,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:35:52,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:35:52,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:35:52,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:35:52,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:35:52,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:35:52,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:35:52,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:35:52,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:35:52,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:35:52,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:35:52,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:35:52,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:35:52,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:35:52,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:35:52,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:35:52,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:35:52,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:35:52,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:35:52,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:35:52,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:35:52,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:35:52,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:35:52,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:35:52,150 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:35:52,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:35:52,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:35:52,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:35:52,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:35:52,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:35:52,153 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:35:52,153 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:35:52,153 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:35:52,153 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:35:52,154 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:35:52,154 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:35:52,154 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:35:52,155 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:35:52,155 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:35:52,155 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:35:52,156 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:35:52,156 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:35:52,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:35:52,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:35:52,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:35:52,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:35:52,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:35:52,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:35:52,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:35:52,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:35:52,159 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:35:52,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:35:52,160 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:35:52,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:35:52,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:35:52,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:35:52,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:35:52,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:35:52,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:35:52,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:35:52,162 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:35:52,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:35:52,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:35:52,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:35:52,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:35:52,163 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_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c699f32b26271d9b8672d2685c3f1aa3d3ad54df32baf7d1d77d9a96ddd2517 [2021-11-21 01:35:52,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:35:52,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:35:52,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:35:52,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:35:52,447 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:35:52,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/loop-acceleration/functions_1-2.c [2021-11-21 01:35:52,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/data/b218ff378/3eef54b5f3b44a258af5adebe6672b4e/FLAG61e7e290e [2021-11-21 01:35:52,965 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:35:52,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/sv-benchmarks/c/loop-acceleration/functions_1-2.c [2021-11-21 01:35:52,972 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/data/b218ff378/3eef54b5f3b44a258af5adebe6672b4e/FLAG61e7e290e [2021-11-21 01:35:53,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/data/b218ff378/3eef54b5f3b44a258af5adebe6672b4e [2021-11-21 01:35:53,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:35:53,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:35:53,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:35:53,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:35:53,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:35:53,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5471845b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53, skipping insertion in model container [2021-11-21 01:35:53,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:35:53,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:35:53,581 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_417a8e07-644f-4462-9f5d-f162c226a9a9/sv-benchmarks/c/loop-acceleration/functions_1-2.c[325,338] [2021-11-21 01:35:53,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:35:53,608 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:35:53,623 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_417a8e07-644f-4462-9f5d-f162c226a9a9/sv-benchmarks/c/loop-acceleration/functions_1-2.c[325,338] [2021-11-21 01:35:53,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:35:53,648 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:35:53,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53 WrapperNode [2021-11-21 01:35:53,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:35:53,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:35:53,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:35:53,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:35:53,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,690 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 28 [2021-11-21 01:35:53,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:35:53,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:35:53,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:35:53,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:35:53,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:35:53,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:35:53,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:35:53,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:35:53,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (1/1) ... [2021-11-21 01:35:53,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:35:53,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:35:53,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:35:53,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:35:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:35:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:35:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:35:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:35:53,888 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:35:53,890 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:35:53,984 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:35:54,009 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:35:54,009 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:35:54,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:35:54 BoogieIcfgContainer [2021-11-21 01:35:54,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:35:54,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:35:54,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:35:54,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:35:54,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:35:53" (1/3) ... [2021-11-21 01:35:54,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ade31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:35:54, skipping insertion in model container [2021-11-21 01:35:54,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:35:53" (2/3) ... [2021-11-21 01:35:54,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ade31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:35:54, skipping insertion in model container [2021-11-21 01:35:54,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:35:54" (3/3) ... [2021-11-21 01:35:54,028 INFO L111 eAbstractionObserver]: Analyzing ICFG functions_1-2.c [2021-11-21 01:35:54,034 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:35:54,034 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:35:54,085 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:35:54,093 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 [2021-11-21 01:35:54,093 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:35:54,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) 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) [2021-11-21 01:35:54,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:35:54,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:35:54,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:35:54,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:35:54,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:35:54,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1972614, now seen corresponding path program 1 times [2021-11-21 01:35:54,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:35:54,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467716860] [2021-11-21 01:35:54,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:54,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:35:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:35:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:54,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:35:54,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467716860] [2021-11-21 01:35:54,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467716860] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:35:54,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:35:54,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:35:54,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525924332] [2021-11-21 01:35:54,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:35:54,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:35:54,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:35:54,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:35:54,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:35:54,455 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) 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) 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) [2021-11-21 01:35:54,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:35:54,513 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-11-21 01:35:54,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:35:54,515 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 [2021-11-21 01:35:54,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:35:54,523 INFO L225 Difference]: With dead ends: 13 [2021-11-21 01:35:54,523 INFO L226 Difference]: Without dead ends: 6 [2021-11-21 01:35:54,525 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 [2021-11-21 01:35:54,546 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:35:54,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:35:54,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-11-21 01:35:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-11-21 01:35:54,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2021-11-21 01:35:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-11-21 01:35:54,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2021-11-21 01:35:54,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:35:54,606 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2021-11-21 01:35:54,606 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) [2021-11-21 01:35:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-11-21 01:35:54,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 01:35:54,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:35:54,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 01:35:54,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:35:54,610 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:35:54,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:35:54,614 INFO L85 PathProgramCache]: Analyzing trace with hash 61048167, now seen corresponding path program 1 times [2021-11-21 01:35:54,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:35:54,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704191961] [2021-11-21 01:35:54,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:54,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:35:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:35:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:54,741 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:35:54,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704191961] [2021-11-21 01:35:54,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704191961] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:35:54,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360281559] [2021-11-21 01:35:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:54,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:35:54,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:35:54,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:35:54,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:35:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:35:54,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:35:54,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:35:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:54,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:35:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:55,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360281559] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:35:55,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1392368755] [2021-11-21 01:35:55,072 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-21 01:35:55,072 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:35:55,076 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:35:55,084 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:35:55,085 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:35:55,694 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:35:55,777 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:35:55,779 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:35:55,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-21 01:35:55,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413791361] [2021-11-21 01:35:55,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:35:55,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:35:55,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:35:55,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:35:55,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:35:55,788 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:35:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:35:55,838 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-11-21 01:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:35:55,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-21 01:35:55,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:35:55,840 INFO L225 Difference]: With dead ends: 12 [2021-11-21 01:35:55,840 INFO L226 Difference]: Without dead ends: 9 [2021-11-21 01:35:55,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-21 01:35:55,843 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:35:55,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:35:55,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-21 01:35:55,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-21 01:35:55,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2021-11-21 01:35:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-21 01:35:55,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-11-21 01:35:55,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:35:55,849 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-21 01:35:55,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:35:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-21 01:35:55,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:35:55,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:35:55,850 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2021-11-21 01:35:55,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:35:56,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-21 01:35:56,071 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:35:56,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:35:56,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1812629958, now seen corresponding path program 2 times [2021-11-21 01:35:56,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:35:56,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800879463] [2021-11-21 01:35:56,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:56,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:35:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:35:56,248 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:56,249 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:35:56,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800879463] [2021-11-21 01:35:56,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800879463] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:35:56,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277848273] [2021-11-21 01:35:56,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 01:35:56,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:35:56,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:35:56,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:35:56,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:35:56,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-21 01:35:56,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:35:56,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-21 01:35:56,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:35:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:56,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:35:56,491 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:56,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277848273] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:35:56,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [44117551] [2021-11-21 01:35:56,494 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-21 01:35:56,494 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:35:56,495 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:35:56,495 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:35:56,495 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:35:56,956 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:35:57,091 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:35:57,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:35:57,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-21 01:35:57,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706257903] [2021-11-21 01:35:57,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:35:57,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 01:35:57,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:35:57,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 01:35:57,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:35:57,094 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-11-21 01:35:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:35:57,490 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-11-21 01:35:57,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 01:35:57,492 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:35:57,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:35:57,492 INFO L225 Difference]: With dead ends: 18 [2021-11-21 01:35:57,493 INFO L226 Difference]: Without dead ends: 15 [2021-11-21 01:35:57,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2021-11-21 01:35:57,495 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:35:57,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:35:57,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-21 01:35:57,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-21 01:35:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2021-11-21 01:35:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-21 01:35:57,501 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2021-11-21 01:35:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:35:57,502 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-21 01:35:57,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-11-21 01:35:57,502 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-21 01:35:57,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 01:35:57,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:35:57,507 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2021-11-21 01:35:57,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:35:57,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:35:57,719 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:35:57,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:35:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1371813414, now seen corresponding path program 3 times [2021-11-21 01:35:57,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:35:57,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501848678] [2021-11-21 01:35:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:57,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:35:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:35:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:58,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:35:58,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501848678] [2021-11-21 01:35:58,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501848678] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:35:58,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471984409] [2021-11-21 01:35:58,053 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-21 01:35:58,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:35:58,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:35:58,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:35:58,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:35:58,189 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-21 01:35:58,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:35:58,192 WARN L261 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 83 conjunts are in the unsatisfiable core [2021-11-21 01:35:58,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:35:58,418 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:58,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:35:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:35:58,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471984409] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:35:58,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [746534493] [2021-11-21 01:35:58,857 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-21 01:35:58,857 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:35:58,857 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:35:58,858 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:35:58,858 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:35:59,298 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:35:59,457 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:35:59,457 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:35:59,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2021-11-21 01:35:59,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082345216] [2021-11-21 01:35:59,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:35:59,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-21 01:35:59,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:35:59,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-21 01:35:59,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2021-11-21 01:35:59,460 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 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) [2021-11-21 01:36:06,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:36:06,244 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2021-11-21 01:36:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-21 01:36:06,245 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 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 14 [2021-11-21 01:36:06,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:36:06,246 INFO L225 Difference]: With dead ends: 30 [2021-11-21 01:36:06,246 INFO L226 Difference]: Without dead ends: 27 [2021-11-21 01:36:06,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=449, Invalid=957, Unknown=0, NotChecked=0, Total=1406 [2021-11-21 01:36:06,248 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:36:06,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:36:06,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-21 01:36:06,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-21 01:36:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2021-11-21 01:36:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-11-21 01:36:06,257 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2021-11-21 01:36:06,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:36:06,257 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-11-21 01:36:06,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 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) [2021-11-21 01:36:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-11-21 01:36:06,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 01:36:06,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:06,259 INFO L514 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1] [2021-11-21 01:36:06,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-21 01:36:06,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:36:06,470 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:06,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:06,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1620915942, now seen corresponding path program 4 times [2021-11-21 01:36:06,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:06,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202661984] [2021-11-21 01:36:06,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:06,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:07,189 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:36:07,189 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:07,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202661984] [2021-11-21 01:36:07,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202661984] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:36:07,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727718244] [2021-11-21 01:36:07,190 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-21 01:36:07,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:36:07,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:36:07,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:36:07,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:36:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:07,311 WARN L261 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 179 conjunts are in the unsatisfiable core [2021-11-21 01:36:07,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:36:07,642 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:36:07,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:36:09,270 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:36:09,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727718244] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:36:09,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1142037038] [2021-11-21 01:36:09,273 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-21 01:36:09,273 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:36:09,274 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:36:09,274 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:36:09,274 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:36:09,704 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:36:09,948 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:36:09,948 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:36:09,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2021-11-21 01:36:09,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981419961] [2021-11-21 01:36:09,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:36:09,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-21 01:36:09,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:36:09,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-21 01:36:09,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=1973, Unknown=0, NotChecked=0, Total=2652 [2021-11-21 01:36:09,953 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 states have internal predecessors, (52), 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) [2021-11-21 01:38:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:38:57,425 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2021-11-21 01:38:57,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-21 01:38:57,426 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 states have internal predecessors, (52), 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 26 [2021-11-21 01:38:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:38:57,427 INFO L225 Difference]: With dead ends: 54 [2021-11-21 01:38:57,427 INFO L226 Difference]: Without dead ends: 51 [2021-11-21 01:38:57,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 169.2s TimeCoverageRelationStatistics Valid=1751, Invalid=3645, Unknown=6, NotChecked=0, Total=5402 [2021-11-21 01:38:57,433 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:38:57,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:38:57,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-21 01:38:57,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-21 01:38:57,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 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) [2021-11-21 01:38:57,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-11-21 01:38:57,445 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 26 [2021-11-21 01:38:57,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:38:57,445 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-11-21 01:38:57,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 states have internal predecessors, (52), 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) [2021-11-21 01:38:57,446 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-11-21 01:38:57,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-21 01:38:57,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:38:57,448 INFO L514 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1] [2021-11-21 01:38:57,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:38:57,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:38:57,663 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:38:57,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:38:57,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1280170086, now seen corresponding path program 5 times [2021-11-21 01:38:57,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:38:57,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099214158] [2021-11-21 01:38:57,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:38:57,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:38:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:38:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:38:59,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:38:59,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099214158] [2021-11-21 01:38:59,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099214158] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:38:59,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537294490] [2021-11-21 01:38:59,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 01:38:59,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:38:59,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:38:59,542 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:38:59,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_417a8e07-644f-4462-9f5d-f162c226a9a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:39:01,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2021-11-21 01:39:01,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:39:01,184 WARN L261 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 377 conjunts are in the unsatisfiable core [2021-11-21 01:39:01,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:39:01,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:39:01,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:39:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:39:08,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537294490] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:39:08,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1220103073] [2021-11-21 01:39:08,912 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-21 01:39:08,912 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:39:08,912 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:39:08,913 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:39:08,913 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:39:09,268 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:39:09,850 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:39:09,850 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:39:09,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 49] total 97 [2021-11-21 01:39:09,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713531528] [2021-11-21 01:39:09,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:39:09,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2021-11-21 01:39:09,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:09,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-11-21 01:39:09,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2505, Invalid=7595, Unknown=0, NotChecked=0, Total=10100 [2021-11-21 01:39:09,858 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 98 states, 98 states have (on average 1.030612244897959) internal successors, (101), 97 states have internal predecessors, (101), 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) [2021-11-21 01:39:12,987 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)))) (and (or (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455)) (or .cse0 (< (mod (+ 92 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 70) 4294967296) 268435455)) (or (< (mod (+ 64 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455)) (or .cse0 (< (mod (+ 88 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 74) 4294967296) 268435455)) (or .cse0 (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 66 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455)) (or .cse0 (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 72 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455)) (or .cse0 (< (mod (+ 62 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 86) 4294967296) 268435455) .cse0) (or (< (mod (+ 76 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455)) (or .cse0 (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 80) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 78) 4294967296) 268435455)) (or .cse0 (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 68 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455)) (or .cse0 (< (mod (+ 82 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 90) 4294967296) 268435455)) (or .cse0 (< (mod (+ 84 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455)) (or .cse0 (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)))) is different from false [2021-11-21 01:39:15,003 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)))) (and (or (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455)) (or .cse0 (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 70) 4294967296) 268435455)) (or (< (mod (+ 64 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455)) (or .cse0 (< (mod (+ 88 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 74) 4294967296) 268435455)) (or .cse0 (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 66 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455)) (or .cse0 (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 72 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455)) (or .cse0 (< (mod (+ 62 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 86) 4294967296) 268435455) .cse0) (or (< (mod (+ 76 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455)) (or .cse0 (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 80) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 78) 4294967296) 268435455)) (or .cse0 (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 68 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455)) (or .cse0 (< (mod (+ 82 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 90) 4294967296) 268435455)) (or .cse0 (< (mod (+ 84 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455)) (or .cse0 (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)))) is different from false [2021-11-21 01:39:17,018 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)))) (and (or (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455)) (or .cse0 (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 70) 4294967296) 268435455)) (or (< (mod (+ 64 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455)) (or .cse0 (< (mod (+ 88 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 74) 4294967296) 268435455)) (or .cse0 (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 66 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455)) (or .cse0 (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 72 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455)) (or .cse0 (< (mod (+ 62 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 86) 4294967296) 268435455) .cse0) (or (< (mod (+ 76 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455)) (or .cse0 (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 80) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 78) 4294967296) 268435455)) (or .cse0 (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 68 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455)) (or .cse0 (< (mod (+ 82 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 84 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455)) (or .cse0 (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)))) is different from false [2021-11-21 01:39:19,035 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)))) (and (or (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455)) (or .cse0 (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 70) 4294967296) 268435455)) (or (< (mod (+ 64 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455)) (or .cse0 (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 74) 4294967296) 268435455)) (or .cse0 (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 66 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455)) (or .cse0 (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 72 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455)) (or .cse0 (< (mod (+ 62 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 86) 4294967296) 268435455) .cse0) (or (< (mod (+ 76 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455)) (or .cse0 (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 80) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 78) 4294967296) 268435455)) (or .cse0 (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 68 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455)) (or .cse0 (< (mod (+ 82 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 84 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455)) (or .cse0 (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)))) is different from false [2021-11-21 01:39:21,051 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)))) (and (or (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455)) (or .cse0 (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 70) 4294967296) 268435455)) (or (< (mod (+ 64 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455)) (or .cse0 (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 74) 4294967296) 268435455)) (or .cse0 (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 66 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455)) (or .cse0 (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 72 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455)) (or .cse0 (< (mod (+ 62 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455)) (or (< (mod (+ 76 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455)) (or .cse0 (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 80) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 78) 4294967296) 268435455)) (or .cse0 (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 68 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455)) (or .cse0 (< (mod (+ 82 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 84 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455)) (or .cse0 (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)))) is different from false [2021-11-21 01:39:23,066 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)))) (and (or (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455)) (or .cse0 (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 70) 4294967296) 268435455)) (or (< (mod (+ 64 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455)) (or .cse0 (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 74) 4294967296) 268435455)) (or .cse0 (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 66 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455)) (or .cse0 (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 72 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455)) (or .cse0 (< (mod (+ 62 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455)) (or (< (mod (+ 76 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455)) (or .cse0 (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 80) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 78) 4294967296) 268435455)) (or .cse0 (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 68 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455)) (or .cse0 (< (mod (+ 82 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455)) (or .cse0 (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)))) is different from false [2021-11-21 01:39:56,772 WARN L227 SmtUtils]: Spent 21.19s on a formula simplification. DAG size of input: 211 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:40:35,602 WARN L227 SmtUtils]: Spent 26.29s on a formula simplification. DAG size of input: 206 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:41:30,420 WARN L227 SmtUtils]: Spent 38.86s on a formula simplification. DAG size of input: 244 DAG size of output: 20 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:42:11,358 WARN L227 SmtUtils]: Spent 19.38s on a formula simplification. DAG size of input: 201 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:42:13,397 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)))) (and (or (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455)) (or .cse0 (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 70) 4294967296) 268435455)) (or (< (mod (+ 64 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455)) (or .cse0 (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 74) 4294967296) 268435455)) (or .cse0 (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 66 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455)) (or .cse0 (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) .cse0) (or .cse0 (< (mod (+ 72 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455)) (or .cse0 (< (mod (+ 62 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455)) (or .cse0 (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455)) (or .cse0 (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 68 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455)) (or .cse0 (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455)))) is different from false [2021-11-21 01:42:49,058 WARN L227 SmtUtils]: Spent 14.92s on a formula simplification. DAG size of input: 191 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:43:29,931 WARN L227 SmtUtils]: Spent 17.15s on a formula simplification. DAG size of input: 186 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:44:11,509 WARN L227 SmtUtils]: Spent 9.26s on a formula simplification. DAG size of input: 181 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:45:10,435 WARN L227 SmtUtils]: Spent 27.88s on a formula simplification. DAG size of input: 176 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:46:09,965 WARN L227 SmtUtils]: Spent 17.79s on a formula simplification. DAG size of input: 171 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:47:00,066 WARN L227 SmtUtils]: Spent 13.66s on a formula simplification. DAG size of input: 166 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:47:50,517 WARN L227 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 161 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:48:35,965 WARN L227 SmtUtils]: Spent 7.97s on a formula simplification. DAG size of input: 156 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:49:33,672 WARN L227 SmtUtils]: Spent 13.12s on a formula simplification. DAG size of input: 151 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)