./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2b04c290f1a7102f69086810812946480d0557325a865f39f1fc1d9d1f1627d8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:44:17,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:44:17,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:44:17,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:44:17,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:44:17,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:44:17,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:44:17,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:44:17,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:44:17,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:44:17,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:44:17,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:44:17,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:44:17,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:44:17,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:44:17,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:44:17,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:44:17,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:44:17,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:44:17,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:44:17,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:44:17,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:44:17,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:44:17,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:44:17,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:44:17,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:44:17,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:44:17,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:44:17,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:44:17,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:44:17,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:44:17,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:44:17,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:44:17,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:44:17,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:44:17,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:44:17,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:44:17,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:44:17,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:44:17,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:44:17,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:44:17,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:44:17,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:44:17,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:44:17,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:44:17,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:44:17,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:44:17,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:44:17,769 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:44:17,769 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:44:17,769 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:44:17,769 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:44:17,770 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:44:17,771 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:44:17,771 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:44:17,771 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:44:17,771 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:44:17,771 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:44:17,771 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:44:17,772 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:44:17,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:44:17,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:44:17,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:44:17,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:44:17,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:44:17,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:44:17,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:44:17,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:44:17,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:44:17,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:44:17,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:44:17,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:44:17,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:44:17,775 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:44:17,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:44:17,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:44:17,775 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:44:17,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:44:17,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:44:17,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:44:17,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b04c290f1a7102f69086810812946480d0557325a865f39f1fc1d9d1f1627d8 [2022-11-19 06:44:18,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:44:18,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:44:18,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:44:18,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:44:18,083 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:44:18,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c [2022-11-19 06:44:18,167 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data/7fe01e281/5e4e389df3374dc19ffa68ba0d860abc/FLAGb5d25a86b [2022-11-19 06:44:18,626 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:44:18,631 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c [2022-11-19 06:44:18,642 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data/7fe01e281/5e4e389df3374dc19ffa68ba0d860abc/FLAGb5d25a86b [2022-11-19 06:44:18,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data/7fe01e281/5e4e389df3374dc19ffa68ba0d860abc [2022-11-19 06:44:19,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:44:19,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:44:19,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:44:19,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:44:19,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:44:19,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552945f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19, skipping insertion in model container [2022-11-19 06:44:19,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:44:19,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:44:19,243 WARN L234 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_337bac5a-8539-4988-a7f2-020f23c1cfc1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c[1107,1120] [2022-11-19 06:44:19,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:44:19,292 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:44:19,303 WARN L234 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_337bac5a-8539-4988-a7f2-020f23c1cfc1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c[1107,1120] [2022-11-19 06:44:19,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:44:19,338 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:44:19,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19 WrapperNode [2022-11-19 06:44:19,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:44:19,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:44:19,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:44:19,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:44:19,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,379 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 138 [2022-11-19 06:44:19,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:44:19,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:44:19,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:44:19,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:44:19,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,402 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:44:19,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:44:19,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:44:19,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:44:19,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (1/1) ... [2022-11-19 06:44:19,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:44:19,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:44:19,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:44:19,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:44:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:44:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:44:19,647 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:44:19,665 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:44:20,031 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:44:20,245 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:44:20,245 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:44:20,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:20 BoogieIcfgContainer [2022-11-19 06:44:20,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:44:20,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:44:20,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:44:20,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:44:20,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:44:19" (1/3) ... [2022-11-19 06:44:20,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e90ee45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:20, skipping insertion in model container [2022-11-19 06:44:20,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:19" (2/3) ... [2022-11-19 06:44:20,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e90ee45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:20, skipping insertion in model container [2022-11-19 06:44:20,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:20" (3/3) ... [2022-11-19 06:44:20,261 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.dyn_partition.c [2022-11-19 06:44:20,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:44:20,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:44:20,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:44:20,345 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ca610f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:44:20,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:44:20,350 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) [2022-11-19 06:44:20,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:44:20,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:20,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:44:20,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:20,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:20,364 INFO L85 PathProgramCache]: Analyzing trace with hash 4054300, now seen corresponding path program 1 times [2022-11-19 06:44:20,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:44:20,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112126295] [2022-11-19 06:44:20,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:20,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:44:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:44:20,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:44:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:44:20,632 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 06:44:20,634 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:44:20,636 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:44:20,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:44:20,643 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 06:44:20,647 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:44:20,672 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:44:20,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:44:20 BoogieIcfgContainer [2022-11-19 06:44:20,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:44:20,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:44:20,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:44:20,686 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:44:20,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:20" (3/4) ... [2022-11-19 06:44:20,691 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:44:20,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:44:20,693 INFO L158 Benchmark]: Toolchain (without parser) took 1686.62ms. Allocated memory is still 157.3MB. Free memory was 124.7MB in the beginning and 80.0MB in the end (delta: 44.7MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2022-11-19 06:44:20,694 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:44:20,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.64ms. Allocated memory is still 157.3MB. Free memory was 124.5MB in the beginning and 132.4MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:44:20,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.95ms. Allocated memory is still 157.3MB. Free memory was 132.4MB in the beginning and 130.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:44:20,698 INFO L158 Benchmark]: Boogie Preprocessor took 26.45ms. Allocated memory is still 157.3MB. Free memory was 130.3MB in the beginning and 129.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:44:20,703 INFO L158 Benchmark]: RCFGBuilder took 842.13ms. Allocated memory is still 157.3MB. Free memory was 129.1MB in the beginning and 98.1MB in the end (delta: 31.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-19 06:44:20,704 INFO L158 Benchmark]: TraceAbstraction took 431.05ms. Allocated memory is still 157.3MB. Free memory was 97.2MB in the beginning and 80.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 06:44:20,705 INFO L158 Benchmark]: Witness Printer took 6.31ms. Allocated memory is still 157.3MB. Free memory was 80.4MB in the beginning and 80.0MB in the end (delta: 445.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:44:20,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.64ms. Allocated memory is still 157.3MB. Free memory was 124.5MB in the beginning and 132.4MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.95ms. Allocated memory is still 157.3MB. Free memory was 132.4MB in the beginning and 130.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.45ms. Allocated memory is still 157.3MB. Free memory was 130.3MB in the beginning and 129.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 842.13ms. Allocated memory is still 157.3MB. Free memory was 129.1MB in the beginning and 98.1MB in the end (delta: 31.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 431.05ms. Allocated memory is still 157.3MB. Free memory was 97.2MB in the beginning and 80.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.31ms. Allocated memory is still 157.3MB. Free memory was 80.4MB in the beginning and 80.0MB in the end (delta: 445.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 65, overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 3); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (3 - 1); [L31] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 32); [L32] const SORT_23 msb_SORT_23 = (SORT_23)1 << (32 - 1); [L34] const SORT_4 var_5 = 0; [L35] const SORT_1 var_13 = 1; [L36] const SORT_1 var_17 = 0; [L37] const SORT_23 var_25 = 1; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L42] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L44] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L45] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_4 init_7_arg_1 = var_5; [L48] state_6 = init_7_arg_1 [L49] SORT_4 init_9_arg_1 = var_5; [L50] state_8 = init_9_arg_1 [L51] SORT_1 init_19_arg_1 = var_17; [L52] state_18 = init_19_arg_1 [L53] SORT_1 init_21_arg_1 = var_17; [L54] state_20 = init_21_arg_1 VAL [init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, state_18=0, state_20=0, state_6=0, state_8=0, var_13=1, var_17=0, var_25=1, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 06:44:20,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2b04c290f1a7102f69086810812946480d0557325a865f39f1fc1d9d1f1627d8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:44:23,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:44:23,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:44:23,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:44:23,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:44:23,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:44:23,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:44:23,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:44:23,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:44:23,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:44:23,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:44:23,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:44:23,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:44:23,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:44:23,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:44:23,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:44:23,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:44:23,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:44:23,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:44:23,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:44:23,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:44:23,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:44:23,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:44:23,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:44:23,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:44:23,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:44:23,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:44:23,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:44:23,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:44:23,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:44:23,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:44:23,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:44:23,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:44:23,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:44:23,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:44:23,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:44:23,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:44:23,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:44:23,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:44:23,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:44:23,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:44:23,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 06:44:23,336 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:44:23,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:44:23,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:44:23,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:44:23,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:44:23,339 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:44:23,339 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:44:23,339 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:44:23,339 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:44:23,340 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:44:23,341 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:44:23,341 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:44:23,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:44:23,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:44:23,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:44:23,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:44:23,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:44:23,343 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:44:23,343 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 06:44:23,344 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 06:44:23,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:44:23,344 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:44:23,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:44:23,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:44:23,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 06:44:23,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:44:23,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:44:23,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:44:23,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:44:23,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:44:23,346 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 06:44:23,346 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 06:44:23,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:44:23,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:44:23,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 06:44:23,347 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b04c290f1a7102f69086810812946480d0557325a865f39f1fc1d9d1f1627d8 [2022-11-19 06:44:23,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:44:23,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:44:23,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:44:23,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:44:23,830 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:44:23,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c [2022-11-19 06:44:23,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data/15cdd4aab/336b966fae8e46c582e9aa844c92f9de/FLAG34190ea49 [2022-11-19 06:44:24,429 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:44:24,431 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c [2022-11-19 06:44:24,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data/15cdd4aab/336b966fae8e46c582e9aa844c92f9de/FLAG34190ea49 [2022-11-19 06:44:24,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/data/15cdd4aab/336b966fae8e46c582e9aa844c92f9de [2022-11-19 06:44:24,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:44:24,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:44:24,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:44:24,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:44:24,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:44:24,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:24" (1/1) ... [2022-11-19 06:44:24,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2388e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:24, skipping insertion in model container [2022-11-19 06:44:24,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:24" (1/1) ... [2022-11-19 06:44:24,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:44:24,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:44:24,972 WARN L234 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_337bac5a-8539-4988-a7f2-020f23c1cfc1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c[1107,1120] [2022-11-19 06:44:25,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:44:25,068 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:44:25,106 WARN L234 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_337bac5a-8539-4988-a7f2-020f23c1cfc1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c[1107,1120] [2022-11-19 06:44:25,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:44:25,161 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:44:25,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25 WrapperNode [2022-11-19 06:44:25,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:44:25,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:44:25,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:44:25,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:44:25,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,214 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2022-11-19 06:44:25,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:44:25,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:44:25,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:44:25,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:44:25,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,262 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:44:25,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:44:25,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:44:25,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:44:25,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (1/1) ... [2022-11-19 06:44:25,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:44:25,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:44:25,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:44:25,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:44:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:44:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:44:25,446 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:44:25,448 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:44:25,628 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:44:25,634 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:44:25,634 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:44:25,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:25 BoogieIcfgContainer [2022-11-19 06:44:25,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:44:25,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:44:25,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:44:25,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:44:25,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:44:24" (1/3) ... [2022-11-19 06:44:25,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d40b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:25, skipping insertion in model container [2022-11-19 06:44:25,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:25" (2/3) ... [2022-11-19 06:44:25,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d40b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:25, skipping insertion in model container [2022-11-19 06:44:25,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:25" (3/3) ... [2022-11-19 06:44:25,644 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.dyn_partition.c [2022-11-19 06:44:25,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:44:25,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:44:25,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:44:25,737 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1651f0f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:44:25,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:44:25,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 06:44:25,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:25,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 06:44:25,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:25,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:25,779 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 06:44:25,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:44:25,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601727327] [2022-11-19 06:44:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:25,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:44:25,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:44:25,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:44:25,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 06:44:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:25,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 06:44:25,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:26,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:44:26,182 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:44:26,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601727327] [2022-11-19 06:44:26,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601727327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:44:26,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:44:26,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:44:26,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542797066] [2022-11-19 06:44:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:44:26,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:44:26,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:44:26,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:44:26,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:44:26,236 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:26,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:26,313 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 06:44:26,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:44:26,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 [2022-11-19 06:44:26,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:26,323 INFO L225 Difference]: With dead ends: 20 [2022-11-19 06:44:26,323 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 06:44:26,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:44:26,335 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:26,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:44:26,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 06:44:26,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 06:44:26,368 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) [2022-11-19 06:44:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 06:44:26,370 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 06:44:26,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:26,371 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 06:44:26,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 06:44:26,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:44:26,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:26,372 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 06:44:26,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:44:26,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:44:26,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:26,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:26,589 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 06:44:26,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:44:26,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888823245] [2022-11-19 06:44:26,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:26,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:44:26,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:44:26,592 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:44:26,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 06:44:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:26,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-19 06:44:26,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:26,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:27,679 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:44:27,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888823245] [2022-11-19 06:44:27,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888823245] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:27,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [834244019] [2022-11-19 06:44:27,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:27,685 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:44:27,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:44:27,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:44:27,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 06:44:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:27,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-19 06:44:27,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:27,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:28,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:28,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [834244019] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:28,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365264289] [2022-11-19 06:44:28,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:28,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:44:28,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:44:28,223 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:44:28,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:44:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:28,294 WARN L261 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-19 06:44:28,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:28,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:28,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:29,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365264289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:29,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:44:29,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 14 [2022-11-19 06:44:29,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974234959] [2022-11-19 06:44:29,423 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:44:29,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 06:44:29,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:44:29,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 06:44:29,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:44:29,425 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:29,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:29,593 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 06:44:29,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:44:29,594 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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 [2022-11-19 06:44:29,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:29,595 INFO L225 Difference]: With dead ends: 16 [2022-11-19 06:44:29,595 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 06:44:29,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-11-19 06:44:29,597 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:29,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 18 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-11-19 06:44:29,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 06:44:29,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 06:44:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 06:44:29,601 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 06:44:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:29,601 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 06:44:29,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:29,602 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 06:44:29,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 06:44:29,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:29,602 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 06:44:29,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:44:29,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 06:44:30,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:44:30,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 06:44:30,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:30,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:30,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 06:44:30,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:44:30,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797601405] [2022-11-19 06:44:30,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 06:44:30,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:44:30,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:44:30,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:44:30,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 06:44:30,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 06:44:30,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:44:30,300 WARN L261 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-19 06:44:30,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:30,638 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:30,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:32,092 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:44:32,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797601405] [2022-11-19 06:44:32,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797601405] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:32,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1823288754] [2022-11-19 06:44:32,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 06:44:32,093 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:44:32,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:44:32,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:44:32,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-19 06:44:32,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 06:44:32,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:44:32,253 WARN L261 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-19 06:44:32,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:32,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:33,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1823288754] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:33,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752806367] [2022-11-19 06:44:33,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 06:44:33,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:44:33,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:44:33,346 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:44:33,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 06:44:33,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 06:44:33,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:44:33,442 WARN L261 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-19 06:44:33,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:33,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:34,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752806367] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:34,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:44:34,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 12 [2022-11-19 06:44:34,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019677510] [2022-11-19 06:44:34,665 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:44:34,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 06:44:34,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:44:34,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 06:44:34,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-19 06:44:34,668 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:34,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:34,822 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-19 06:44:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 06:44:34,823 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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 11 [2022-11-19 06:44:34,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:34,824 INFO L225 Difference]: With dead ends: 19 [2022-11-19 06:44:34,824 INFO L226 Difference]: Without dead ends: 17 [2022-11-19 06:44:34,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-11-19 06:44:34,825 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:34,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 26 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 20 Unchecked, 0.1s Time] [2022-11-19 06:44:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-19 06:44:34,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-19 06:44:34,830 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) [2022-11-19 06:44:34,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-19 06:44:34,830 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-19 06:44:34,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:34,831 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-19 06:44:34,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:34,831 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-19 06:44:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 06:44:34,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:34,832 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-19 06:44:34,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-11-19 06:44:35,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 06:44:35,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 06:44:35,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:44:35,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:35,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:35,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-19 06:44:35,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:44:35,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902393120] [2022-11-19 06:44:35,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:44:35,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:44:35,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:44:35,439 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:44:35,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 06:44:35,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 06:44:35,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:44:35,554 WARN L261 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-19 06:44:35,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:36,035 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:36,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:38,215 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:44:38,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902393120] [2022-11-19 06:44:38,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902393120] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:38,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1570743552] [2022-11-19 06:44:38,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:44:38,216 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:44:38,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:44:38,219 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:44:38,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-19 06:44:38,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 06:44:38,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:44:38,406 WARN L261 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 98 conjunts are in the unsatisfiable core [2022-11-19 06:44:38,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:38,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:40,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1570743552] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:40,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773290921] [2022-11-19 06:44:40,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:44:40,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:44:40,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:44:40,167 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:44:40,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 06:44:40,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 06:44:40,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:44:40,263 WARN L261 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 93 conjunts are in the unsatisfiable core [2022-11-19 06:44:40,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:40,939 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:40,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:46,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773290921] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:46,128 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:44:46,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 10, 10] total 24 [2022-11-19 06:44:46,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54521079] [2022-11-19 06:44:46,129 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:44:46,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-19 06:44:46,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:44:46,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-19 06:44:46,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2022-11-19 06:44:46,131 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 24 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 24 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:48,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:48,594 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-19 06:44:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 06:44:48,595 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 24 states have internal predecessors, (46), 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 [2022-11-19 06:44:48,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:48,595 INFO L225 Difference]: With dead ends: 28 [2022-11-19 06:44:48,596 INFO L226 Difference]: Without dead ends: 26 [2022-11-19 06:44:48,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 50 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=163, Invalid=829, Unknown=0, NotChecked=0, Total=992 [2022-11-19 06:44:48,597 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 38 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:48,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 56 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 93 Unchecked, 0.1s Time] [2022-11-19 06:44:48,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-19 06:44:48,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-19 06:44:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:48,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-19 06:44:48,606 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2022-11-19 06:44:48,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:48,606 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-19 06:44:48,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 24 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:44:48,606 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-19 06:44:48,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:44:48,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:48,607 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-19 06:44:48,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-19 06:44:48,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 06:44:49,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 06:44:49,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:44:49,210 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:49,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:49,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-19 06:44:49,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:44:49,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450828664] [2022-11-19 06:44:49,211 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 06:44:49,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:44:49,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:44:49,213 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:44:49,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-19 06:44:49,307 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 06:44:49,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:44:49,313 WARN L261 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 122 conjunts are in the unsatisfiable core [2022-11-19 06:44:49,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:49,923 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:49,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:52,969 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:44:52,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450828664] [2022-11-19 06:44:52,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450828664] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:52,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1419086942] [2022-11-19 06:44:52,970 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 06:44:52,970 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:44:52,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:44:52,971 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:44:52,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-19 06:44:53,154 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 06:44:53,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:44:53,159 WARN L261 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 123 conjunts are in the unsatisfiable core [2022-11-19 06:44:53,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:53,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:55,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1419086942] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:55,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198323508] [2022-11-19 06:44:55,511 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 06:44:55,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:44:55,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:44:55,515 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:44:55,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-19 06:44:55,625 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 06:44:55,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:44:55,630 WARN L261 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 125 conjunts are in the unsatisfiable core [2022-11-19 06:44:55,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:56,170 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:56,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:44:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:58,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198323508] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:44:58,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:44:58,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 9, 9] total 16 [2022-11-19 06:44:58,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407348106] [2022-11-19 06:44:58,288 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:44:58,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 06:44:58,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:44:58,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 06:44:58,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-11-19 06:44:58,290 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:45:00,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:45:00,418 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2022-11-19 06:45:00,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 06:45:00,419 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 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 17 [2022-11-19 06:45:00,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:45:00,420 INFO L225 Difference]: With dead ends: 39 [2022-11-19 06:45:00,420 INFO L226 Difference]: Without dead ends: 37 [2022-11-19 06:45:00,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 75 SyntacticMatches, 10 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2022-11-19 06:45:00,421 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 30 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:45:00,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 35 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 96 Unchecked, 0.1s Time] [2022-11-19 06:45:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-19 06:45:00,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2022-11-19 06:45:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.0625) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:45:00,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-19 06:45:00,433 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 17 [2022-11-19 06:45:00,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:45:00,433 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-19 06:45:00,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:45:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-19 06:45:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 06:45:00,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:45:00,434 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2022-11-19 06:45:00,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-19 06:45:00,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-19 06:45:00,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-19 06:45:01,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:45:01,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:45:01,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:45:01,038 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 5 times [2022-11-19 06:45:01,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:45:01,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497286051] [2022-11-19 06:45:01,039 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 06:45:01,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:45:01,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:45:01,040 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:45:01,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-19 06:45:01,237 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-11-19 06:45:01,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:45:01,246 WARN L261 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 200 conjunts are in the unsatisfiable core [2022-11-19 06:45:01,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:45:02,367 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:45:02,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:45:09,614 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:45:09,614 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:45:09,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497286051] [2022-11-19 06:45:09,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497286051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:45:09,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1708270699] [2022-11-19 06:45:09,615 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 06:45:09,615 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:45:09,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:45:09,619 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:45:09,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-19 06:45:09,919 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-11-19 06:45:09,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:45:09,928 WARN L261 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 201 conjunts are in the unsatisfiable core [2022-11-19 06:45:09,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:45:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:45:10,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:07,600 WARN L233 SmtUtils]: Spent 51.06s on a formula simplification. DAG size of input: 358 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:46:07,734 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:07,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1708270699] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:46:07,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025686928] [2022-11-19 06:46:07,735 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 06:46:07,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:07,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:07,738 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:07,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-19 06:46:07,949 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-11-19 06:46:07,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:46:07,957 WARN L261 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 204 conjunts are in the unsatisfiable core [2022-11-19 06:46:07,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:08,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:14,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025686928] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:46:14,428 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:46:14,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 12, 12] total 23 [2022-11-19 06:46:14,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898524501] [2022-11-19 06:46:14,429 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:46:14,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-19 06:46:14,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:46:14,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-19 06:46:14,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-11-19 06:46:14,431 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:20,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:20,759 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2022-11-19 06:46:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-19 06:46:20,760 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 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 [2022-11-19 06:46:20,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:20,761 INFO L225 Difference]: With dead ends: 52 [2022-11-19 06:46:20,761 INFO L226 Difference]: Without dead ends: 50 [2022-11-19 06:46:20,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 119 SyntacticMatches, 15 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 70.4s TimeCoverageRelationStatistics Valid=299, Invalid=1341, Unknown=0, NotChecked=0, Total=1640 [2022-11-19 06:46:20,763 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 50 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 114 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:20,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 40 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 0 Unknown, 114 Unchecked, 0.2s Time] [2022-11-19 06:46:20,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-19 06:46:20,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2022-11-19 06:46:20,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.0638297872340425) internal successors, (50), 47 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:20,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2022-11-19 06:46:20,780 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 26 [2022-11-19 06:46:20,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:20,781 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2022-11-19 06:46:20,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:46:20,781 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2022-11-19 06:46:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-19 06:46:20,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:20,782 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1] [2022-11-19 06:46:20,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-19 06:46:20,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-19 06:46:21,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-19 06:46:21,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:46:21,387 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:46:21,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:21,388 INFO L85 PathProgramCache]: Analyzing trace with hash 282806601, now seen corresponding path program 6 times [2022-11-19 06:46:21,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:46:21,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557803872] [2022-11-19 06:46:21,389 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 06:46:21,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:46:21,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:46:21,390 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:46:21,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-19 06:46:21,663 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-11-19 06:46:21,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:46:21,676 WARN L261 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 278 conjunts are in the unsatisfiable core [2022-11-19 06:46:21,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:23,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:39,753 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:46:39,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557803872] [2022-11-19 06:46:39,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557803872] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:46:39,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [369902444] [2022-11-19 06:46:39,753 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 06:46:39,754 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:46:39,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:46:39,755 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:46:39,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2022-11-19 06:46:40,193 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-11-19 06:46:40,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:46:40,204 WARN L261 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 280 conjunts are in the unsatisfiable core [2022-11-19 06:46:40,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:41,539 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:41,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:55,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [369902444] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:46:55,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267128799] [2022-11-19 06:46:55,891 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 06:46:55,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:55,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:55,892 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:55,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-19 06:46:56,126 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-11-19 06:46:56,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:46:56,136 WARN L261 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 304 conjunts are in the unsatisfiable core [2022-11-19 06:46:56,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:58,341 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:58,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:47:25,117 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:25,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267128799] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:47:25,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:47:25,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 18, 19] total 43 [2022-11-19 06:47:25,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167445524] [2022-11-19 06:47:25,118 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:47:25,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-19 06:47:25,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:47:25,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-19 06:47:25,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=1505, Unknown=0, NotChecked=0, Total=1806 [2022-11-19 06:47:25,121 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 43 states, 43 states have (on average 2.2790697674418605) internal successors, (98), 43 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:48:01,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:48:01,480 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2022-11-19 06:48:01,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-19 06:48:01,481 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.2790697674418605) internal successors, (98), 43 states have internal predecessors, (98), 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 35 [2022-11-19 06:48:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:48:01,482 INFO L225 Difference]: With dead ends: 77 [2022-11-19 06:48:01,482 INFO L226 Difference]: Without dead ends: 75 [2022-11-19 06:48:01,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 154 SyntacticMatches, 22 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1320 ImplicationChecksByTransitivity, 84.8s TimeCoverageRelationStatistics Valid=807, Invalid=4163, Unknown=0, NotChecked=0, Total=4970 [2022-11-19 06:48:01,485 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 133 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 252 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:48:01,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 65 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 187 Invalid, 0 Unknown, 252 Unchecked, 0.3s Time] [2022-11-19 06:48:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-19 06:48:01,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 69. [2022-11-19 06:48:01,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 68 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:48:01,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2022-11-19 06:48:01,515 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 35 [2022-11-19 06:48:01,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:48:01,516 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2022-11-19 06:48:01,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.2790697674418605) internal successors, (98), 43 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:48:01,516 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2022-11-19 06:48:01,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-19 06:48:01,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:48:01,517 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 1, 1, 1, 1] [2022-11-19 06:48:01,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-19 06:48:01,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-19 06:48:01,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2022-11-19 06:48:02,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 06:48:02,126 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:48:02,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:48:02,126 INFO L85 PathProgramCache]: Analyzing trace with hash -779438813, now seen corresponding path program 7 times [2022-11-19 06:48:02,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:48:02,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441848046] [2022-11-19 06:48:02,127 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 06:48:02,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:48:02,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:48:02,128 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:48:02,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-19 06:48:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:48:02,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:48:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:48:02,799 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 06:48:02,799 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:48:02,800 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:48:02,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-19 06:48:03,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:48:03,026 INFO L444 BasicCegarLoop]: Path program histogram: [7, 1] [2022-11-19 06:48:03,031 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:48:03,114 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,114 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,114 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,115 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,115 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,115 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,115 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,115 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,115 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,116 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,116 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,116 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,116 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,116 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,116 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,116 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:48:03 BoogieIcfgContainer [2022-11-19 06:48:03,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:48:03,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:48:03,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:48:03,157 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:48:03,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:25" (3/4) ... [2022-11-19 06:48:03,160 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-19 06:48:03,197 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,207 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,207 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,207 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,207 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,207 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,208 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,208 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,208 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,208 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,208 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,208 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,215 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,215 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,215 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,215 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:48:03,336 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:48:03,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:48:03,337 INFO L158 Benchmark]: Toolchain (without parser) took 218556.66ms. Allocated memory was 71.3MB in the beginning and 220.2MB in the end (delta: 148.9MB). Free memory was 55.5MB in the beginning and 90.8MB in the end (delta: -35.4MB). Peak memory consumption was 111.7MB. Max. memory is 16.1GB. [2022-11-19 06:48:03,337 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:48:03,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.75ms. Allocated memory is still 71.3MB. Free memory was 55.2MB in the beginning and 54.4MB in the end (delta: 817.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:48:03,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.12ms. Allocated memory is still 71.3MB. Free memory was 54.4MB in the beginning and 52.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:48:03,338 INFO L158 Benchmark]: Boogie Preprocessor took 53.19ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 51.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:48:03,339 INFO L158 Benchmark]: RCFGBuilder took 367.21ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 38.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 06:48:03,339 INFO L158 Benchmark]: TraceAbstraction took 217518.20ms. Allocated memory was 71.3MB in the beginning and 220.2MB in the end (delta: 148.9MB). Free memory was 37.9MB in the beginning and 109.7MB in the end (delta: -71.8MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. [2022-11-19 06:48:03,339 INFO L158 Benchmark]: Witness Printer took 179.38ms. Allocated memory is still 220.2MB. Free memory was 109.7MB in the beginning and 90.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-19 06:48:03,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.75ms. Allocated memory is still 71.3MB. Free memory was 55.2MB in the beginning and 54.4MB in the end (delta: 817.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.12ms. Allocated memory is still 71.3MB. Free memory was 54.4MB in the beginning and 52.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.19ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 51.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 367.21ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 38.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 217518.20ms. Allocated memory was 71.3MB in the beginning and 220.2MB in the end (delta: 148.9MB). Free memory was 37.9MB in the beginning and 109.7MB in the end (delta: -71.8MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. * Witness Printer took 179.38ms. Allocated memory is still 220.2MB. Free memory was 109.7MB in the beginning and 90.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 20]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 3); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (3 - 1); [L31] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 32); [L32] const SORT_23 msb_SORT_23 = (SORT_23)1 << (32 - 1); [L34] const SORT_4 var_5 = 0; [L35] const SORT_1 var_13 = 1; [L36] const SORT_1 var_17 = 0; [L37] const SORT_23 var_25 = 1; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L42] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L44] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L45] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_4 init_7_arg_1 = var_5; [L48] state_6 = init_7_arg_1 [L49] SORT_4 init_9_arg_1 = var_5; [L50] state_8 = init_9_arg_1 [L51] SORT_1 init_19_arg_1 = var_17; [L52] state_18 = init_19_arg_1 [L53] SORT_1 init_21_arg_1 = var_17; [L54] state_20 = init_21_arg_1 VAL [init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, state_18=0, state_20=0, state_6=0, state_8=0, var_13=1, var_17=0, var_25=1, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=9, input_3=10, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=0, next_35_arg_1=1, next_37_arg_1=1, next_38_arg_1=0, state_18=1, state_20=0, state_6=0, state_8=1, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=0, var_24_arg_0=0, var_25=1, var_26=1, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=1, var_28=1, var_28_arg_0=0, var_28_arg_1=0, var_29=0, var_29_arg_0=1, var_29_arg_1=0, var_29_arg_2=1, var_31=0, var_31_arg_0=0, var_32=1, var_32_arg_0=0, var_32_arg_1=1, var_33=1, var_33_arg_0=1, var_34=1, var_34_arg_0=1, var_34_arg_1=1, var_34_arg_2=0, var_36=1, var_36_arg_0=0, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=11, input_3=12, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=1, next_35_arg_1=1, next_37_arg_1=1, next_38_arg_1=1, state_18=1, state_20=1, state_6=1, state_8=1, var_10=1, var_10_arg_0=0, var_10_arg_1=1, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=0, var_24_arg_0=0, var_25=1, var_26=1, var_26_arg_0=0, var_26_arg_1=1, var_27=1, var_27_arg_0=1, var_28=0, var_28_arg_0=1, var_28_arg_1=0, var_29=1, var_29_arg_0=0, var_29_arg_1=0, var_29_arg_2=1, var_31=1, var_31_arg_0=1, var_32=2, var_32_arg_0=1, var_32_arg_1=1, var_33=2, var_33_arg_0=2, var_34=1, var_34_arg_0=0, var_34_arg_1=2, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=13, input_3=14, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=1, next_35_arg_1=2, next_37_arg_1=0, next_38_arg_1=1, state_18=0, state_20=1, state_6=1, state_8=2, var_10=1, var_10_arg_0=1, var_10_arg_1=1, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=1, var_24_arg_0=1, var_25=1, var_26=2, var_26_arg_0=1, var_26_arg_1=1, var_27=2, var_27_arg_0=2, var_28=1, var_28_arg_0=1, var_28_arg_1=1, var_29=1, var_29_arg_0=1, var_29_arg_1=1, var_29_arg_2=2, var_31=1, var_31_arg_0=1, var_32=2, var_32_arg_0=1, var_32_arg_1=1, var_33=2, var_33_arg_0=2, var_34=2, var_34_arg_0=1, var_34_arg_1=2, var_34_arg_2=1, var_36=0, var_36_arg_0=1, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=15, input_3=16, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=2, next_35_arg_1=2, next_37_arg_1=0, next_38_arg_1=0, state_18=0, state_20=0, state_6=2, state_8=2, var_10=1, var_10_arg_0=1, var_10_arg_1=2, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=1, var_24_arg_0=1, var_25=1, var_26=2, var_26_arg_0=1, var_26_arg_1=1, var_27=2, var_27_arg_0=2, var_28=0, var_28_arg_0=0, var_28_arg_1=1, var_29=2, var_29_arg_0=0, var_29_arg_1=1, var_29_arg_2=2, var_31=2, var_31_arg_0=2, var_32=3, var_32_arg_0=2, var_32_arg_1=1, var_33=3, var_33_arg_0=3, var_34=2, var_34_arg_0=0, var_34_arg_1=3, var_34_arg_2=2, var_36=0, var_36_arg_0=1, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=17, input_3=18, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=2, next_35_arg_1=3, next_37_arg_1=1, next_38_arg_1=0, state_18=1, state_20=0, state_6=2, state_8=3, var_10=1, var_10_arg_0=2, var_10_arg_1=2, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=2, var_24_arg_0=2, var_25=1, var_26=3, var_26_arg_0=2, var_26_arg_1=1, var_27=3, var_27_arg_0=3, var_28=1, var_28_arg_0=0, var_28_arg_1=0, var_29=2, var_29_arg_0=1, var_29_arg_1=2, var_29_arg_2=3, var_31=2, var_31_arg_0=2, var_32=3, var_32_arg_0=2, var_32_arg_1=1, var_33=3, var_33_arg_0=3, var_34=3, var_34_arg_0=1, var_34_arg_1=3, var_34_arg_2=2, var_36=1, var_36_arg_0=0, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=19, input_3=20, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=3, next_35_arg_1=3, next_37_arg_1=1, next_38_arg_1=1, state_18=1, state_20=1, state_6=3, state_8=3, var_10=1, var_10_arg_0=2, var_10_arg_1=3, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=2, var_24_arg_0=2, var_25=1, var_26=3, var_26_arg_0=2, var_26_arg_1=1, var_27=3, var_27_arg_0=3, var_28=0, var_28_arg_0=1, var_28_arg_1=0, var_29=3, var_29_arg_0=0, var_29_arg_1=2, var_29_arg_2=3, var_31=3, var_31_arg_0=3, var_32=4, var_32_arg_0=3, var_32_arg_1=1, var_33=4, var_33_arg_0=4, var_34=3, var_34_arg_0=0, var_34_arg_1=4, var_34_arg_2=3, var_36=1, var_36_arg_0=0, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=21, input_3=22, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=3, next_35_arg_1=4, next_37_arg_1=0, next_38_arg_1=1, state_18=0, state_20=1, state_6=3, state_8=4, var_10=1, var_10_arg_0=3, var_10_arg_1=3, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=3, var_24_arg_0=3, var_25=1, var_26=4, var_26_arg_0=3, var_26_arg_1=1, var_27=4, var_27_arg_0=4, var_28=1, var_28_arg_0=1, var_28_arg_1=1, var_29=3, var_29_arg_0=1, var_29_arg_1=3, var_29_arg_2=4, var_31=3, var_31_arg_0=3, var_32=4, var_32_arg_0=3, var_32_arg_1=1, var_33=4, var_33_arg_0=4, var_34=4, var_34_arg_0=1, var_34_arg_1=4, var_34_arg_2=3, var_36=0, var_36_arg_0=1, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=23, input_3=24, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=4, next_35_arg_1=4, next_37_arg_1=0, next_38_arg_1=0, state_18=0, state_20=0, state_6=4, state_8=4, var_10=1, var_10_arg_0=3, var_10_arg_1=4, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=3, var_24_arg_0=3, var_25=1, var_26=4, var_26_arg_0=3, var_26_arg_1=1, var_27=4, var_27_arg_0=4, var_28=0, var_28_arg_0=0, var_28_arg_1=1, var_29=4, var_29_arg_0=0, var_29_arg_1=3, var_29_arg_2=4, var_31=4, var_31_arg_0=4, var_32=5, var_32_arg_0=4, var_32_arg_1=1, var_33=5, var_33_arg_0=5, var_34=4, var_34_arg_0=0, var_34_arg_1=5, var_34_arg_2=4, var_36=0, var_36_arg_0=1, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=25, input_3=26, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=4, next_35_arg_1=5, next_37_arg_1=1, next_38_arg_1=0, state_18=1, state_20=0, state_6=4, state_8=5, var_10=1, var_10_arg_0=4, var_10_arg_1=4, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=4, var_24_arg_0=4, var_25=1, var_26=5, var_26_arg_0=4, var_26_arg_1=1, var_27=5, var_27_arg_0=5, var_28=1, var_28_arg_0=0, var_28_arg_1=0, var_29=4, var_29_arg_0=1, var_29_arg_1=4, var_29_arg_2=5, var_31=4, var_31_arg_0=4, var_32=5, var_32_arg_0=4, var_32_arg_1=1, var_33=5, var_33_arg_0=5, var_34=5, var_34_arg_0=1, var_34_arg_1=5, var_34_arg_2=4, var_36=1, var_36_arg_0=0, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=27, input_3=28, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=5, next_35_arg_1=5, next_37_arg_1=1, next_38_arg_1=1, state_18=1, state_20=1, state_6=5, state_8=5, var_10=1, var_10_arg_0=4, var_10_arg_1=5, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=4, var_24_arg_0=4, var_25=1, var_26=5, var_26_arg_0=4, var_26_arg_1=1, var_27=5, var_27_arg_0=5, var_28=0, var_28_arg_0=1, var_28_arg_1=0, var_29=5, var_29_arg_0=0, var_29_arg_1=4, var_29_arg_2=5, var_31=5, var_31_arg_0=5, var_32=6, var_32_arg_0=5, var_32_arg_1=1, var_33=6, var_33_arg_0=6, var_34=5, var_34_arg_0=0, var_34_arg_1=6, var_34_arg_2=5, var_36=1, var_36_arg_0=0, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=29, input_3=30, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=5, next_35_arg_1=6, next_37_arg_1=0, next_38_arg_1=1, state_18=0, state_20=1, state_6=5, state_8=6, var_10=1, var_10_arg_0=5, var_10_arg_1=5, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=5, var_24_arg_0=5, var_25=1, var_26=6, var_26_arg_0=5, var_26_arg_1=1, var_27=6, var_27_arg_0=6, var_28=1, var_28_arg_0=1, var_28_arg_1=1, var_29=5, var_29_arg_0=1, var_29_arg_1=5, var_29_arg_2=6, var_31=5, var_31_arg_0=5, var_32=6, var_32_arg_0=5, var_32_arg_1=1, var_33=6, var_33_arg_0=6, var_34=6, var_34_arg_0=1, var_34_arg_1=6, var_34_arg_2=5, var_36=0, var_36_arg_0=1, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=31, input_3=32, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=6, next_35_arg_1=6, next_37_arg_1=0, next_38_arg_1=0, state_18=0, state_20=0, state_6=6, state_8=6, var_10=1, var_10_arg_0=5, var_10_arg_1=6, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=5, var_24_arg_0=5, var_25=1, var_26=6, var_26_arg_0=5, var_26_arg_1=1, var_27=6, var_27_arg_0=6, var_28=0, var_28_arg_0=0, var_28_arg_1=1, var_29=6, var_29_arg_0=0, var_29_arg_1=5, var_29_arg_2=6, var_31=6, var_31_arg_0=6, var_32=7, var_32_arg_0=6, var_32_arg_1=1, var_33=7, var_33_arg_0=7, var_34=6, var_34_arg_0=0, var_34_arg_1=7, var_34_arg_2=6, var_36=0, var_36_arg_0=1, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=33, input_3=34, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=6, next_35_arg_1=7, next_37_arg_1=1, next_38_arg_1=0, state_18=1, state_20=0, state_6=6, state_8=7, var_10=1, var_10_arg_0=6, var_10_arg_1=6, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=6, var_24_arg_0=6, var_25=1, var_26=7, var_26_arg_0=6, var_26_arg_1=1, var_27=7, var_27_arg_0=7, var_28=1, var_28_arg_0=0, var_28_arg_1=0, var_29=6, var_29_arg_0=1, var_29_arg_1=6, var_29_arg_2=7, var_31=6, var_31_arg_0=6, var_32=7, var_32_arg_0=6, var_32_arg_1=1, var_33=7, var_33_arg_0=7, var_34=7, var_34_arg_0=1, var_34_arg_1=7, var_34_arg_2=6, var_36=1, var_36_arg_0=0, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=35, input_3=36, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=7, next_35_arg_1=7, next_37_arg_1=1, next_38_arg_1=1, state_18=1, state_20=1, state_6=7, state_8=7, var_10=1, var_10_arg_0=6, var_10_arg_1=7, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=6, var_24_arg_0=6, var_25=1, var_26=7, var_26_arg_0=6, var_26_arg_1=1, var_27=7, var_27_arg_0=7, var_28=0, var_28_arg_0=1, var_28_arg_1=0, var_29=7, var_29_arg_0=0, var_29_arg_1=6, var_29_arg_2=7, var_31=7, var_31_arg_0=7, var_32=8, var_32_arg_0=7, var_32_arg_1=1, var_33=8, var_33_arg_0=8, var_34=7, var_34_arg_0=0, var_34_arg_1=8, var_34_arg_2=7, var_36=1, var_36_arg_0=0, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L71] RET __VERIFIER_assert(!(bad_16_arg_0)) [L73] SORT_1 var_28_arg_0 = state_18; [L74] SORT_1 var_28_arg_1 = state_20; [L75] SORT_1 var_28 = var_28_arg_0 == var_28_arg_1; [L76] SORT_4 var_24_arg_0 = state_6; [L77] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L78] SORT_23 var_24 = var_24_arg_0; [L79] SORT_23 var_26_arg_0 = var_24; [L80] SORT_23 var_26_arg_1 = var_25; [L81] SORT_23 var_26 = var_26_arg_0 + var_26_arg_1; [L82] SORT_23 var_27_arg_0 = var_26; [L83] SORT_4 var_27 = var_27_arg_0 >> 0; [L84] SORT_1 var_29_arg_0 = var_28; [L85] SORT_4 var_29_arg_1 = state_6; [L86] SORT_4 var_29_arg_2 = var_27; [L87] SORT_4 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L88] var_29 = var_29 & mask_SORT_4 [L89] SORT_4 next_30_arg_1 = var_29; [L90] SORT_4 var_31_arg_0 = state_8; [L91] var_31_arg_0 = var_31_arg_0 & mask_SORT_4 [L92] SORT_23 var_31 = var_31_arg_0; [L93] SORT_23 var_32_arg_0 = var_31; [L94] SORT_23 var_32_arg_1 = var_25; [L95] SORT_23 var_32 = var_32_arg_0 + var_32_arg_1; [L96] SORT_23 var_33_arg_0 = var_32; [L97] SORT_4 var_33 = var_33_arg_0 >> 0; [L98] SORT_1 var_34_arg_0 = var_28; [L99] SORT_4 var_34_arg_1 = var_33; [L100] SORT_4 var_34_arg_2 = state_8; [L101] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L102] var_34 = var_34 & mask_SORT_4 [L103] SORT_4 next_35_arg_1 = var_34; [L104] SORT_1 var_36_arg_0 = state_20; [L105] SORT_1 var_36 = ~var_36_arg_0; [L106] var_36 = var_36 & mask_SORT_1 [L107] SORT_1 next_37_arg_1 = var_36; [L108] SORT_1 next_38_arg_1 = state_18; [L110] state_6 = next_30_arg_1 [L111] state_8 = next_35_arg_1 [L112] state_18 = next_37_arg_1 [L113] state_20 = next_38_arg_1 VAL [bad_16_arg_0=0, init_19_arg_1=0, init_21_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=37, input_3=38, mask_SORT_1=1, mask_SORT_23=4294967295, mask_SORT_4=7, msb_SORT_1=1, msb_SORT_23=2147483648, msb_SORT_4=4, next_30_arg_1=7, next_35_arg_1=0, next_37_arg_1=0, next_38_arg_1=1, state_18=0, state_20=1, state_6=7, state_8=0, var_10=1, var_10_arg_0=7, var_10_arg_1=7, var_13=1, var_14=254, var_14_arg_0=1, var_15=0, var_15_arg_0=1, var_15_arg_1=254, var_17=0, var_24=7, var_24_arg_0=7, var_25=1, var_26=8, var_26_arg_0=7, var_26_arg_1=1, var_27=8, var_27_arg_0=8, var_28=1, var_28_arg_0=1, var_28_arg_1=1, var_29=7, var_29_arg_0=1, var_29_arg_1=7, var_29_arg_2=8, var_31=7, var_31_arg_0=7, var_32=8, var_32_arg_0=7, var_32_arg_1=1, var_33=8, var_33_arg_0=8, var_34=0, var_34_arg_0=1, var_34_arg_1=8, var_34_arg_2=7, var_36=0, var_36_arg_0=1, var_5=0] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_10_arg_0 = state_6; [L62] SORT_4 var_10_arg_1 = state_8; [L63] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L64] SORT_1 var_14_arg_0 = var_10; [L65] SORT_1 var_14 = ~var_14_arg_0; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 bad_16_arg_0 = var_15; [L71] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 217.3s, OverallIterations: 8, TraceHistogramMax: 16, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 47.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 253 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 582 IncrementalHoareTripleChecker+Unchecked, 224 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 456 IncrementalHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 29 mSDtfsCounter, 456 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 730 GetRequests, 473 SyntacticMatches, 62 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2073 ImplicationChecksByTransitivity, 173.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=7, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 20 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 161.3s InterpolantComputationTime, 388 NumberOfCodeBlocks, 388 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 634 ConstructedInterpolants, 262 QuantifiedInterpolants, 80350 SizeOfPredicates, 2279 NumberOfNonLiveVariables, 4653 ConjunctsInSsa, 2455 ConjunctsInUnsatCore, 37 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1692 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-19 06:48:03,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_337bac5a-8539-4988-a7f2-020f23c1cfc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE