./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh --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 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 --- 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-2329fc7 [2022-12-14 08:25:55,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:25:55,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:25:55,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:25:55,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:25:55,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:25:55,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:25:55,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:25:55,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:25:55,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:25:55,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:25:55,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:25:55,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:25:55,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:25:55,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:25:55,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:25:55,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:25:55,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:25:55,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:25:55,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:25:55,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:25:55,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:25:55,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:25:55,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:25:55,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:25:55,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:25:55,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:25:55,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:25:55,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:25:55,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:25:55,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:25:55,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:25:55,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:25:55,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:25:55,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:25:55,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:25:55,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:25:55,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:25:55,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:25:55,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:25:55,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:25:55,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 08:25:55,635 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:25:55,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:25:55,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:25:55,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:25:55,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:25:55,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:25:55,636 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:25:55,636 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:25:55,636 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:25:55,636 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:25:55,637 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:25:55,637 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:25:55,637 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:25:55,637 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:25:55,637 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:25:55,637 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:25:55,637 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:25:55,637 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:25:55,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:25:55,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:25:55,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:25:55,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:25:55,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:25:55,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:25:55,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:25:55,639 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:25:55,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:25:55,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:25:55,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:25:55,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:25:55,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:25:55,639 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:25:55,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:25:55,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:25:55,640 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:25:55,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:25:55,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:25:55,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:25:55,640 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_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 [2022-12-14 08:25:55,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:25:55,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:25:55,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:25:55,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:25:55,829 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:25:55,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-12-14 08:25:58,460 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:25:58,623 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:25:58,624 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-12-14 08:25:58,629 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/data/af439ce0f/e9401af3ab134f5684ee7f21e8c2942a/FLAG8011fbaa7 [2022-12-14 08:25:58,640 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/data/af439ce0f/e9401af3ab134f5684ee7f21e8c2942a [2022-12-14 08:25:58,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:25:58,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:25:58,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:25:58,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:25:58,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:25:58,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0216a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58, skipping insertion in model container [2022-12-14 08:25:58,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:25:58,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:25:58,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-12-14 08:25:58,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:25:58,851 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:25:58,862 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-12-14 08:25:58,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:25:58,914 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:25:58,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58 WrapperNode [2022-12-14 08:25:58,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:25:58,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:25:58,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:25:58,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:25:58,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,956 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 267 [2022-12-14 08:25:58,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:25:58,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:25:58,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:25:58,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:25:58,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,979 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:25:58,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:25:58,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:25:58,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:25:58,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (1/1) ... [2022-12-14 08:25:58,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:25:59,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:25:59,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:25:59,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:25:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:25:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:25:59,142 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:25:59,143 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:25:59,959 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:25:59,976 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:25:59,977 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:25:59,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:25:59 BoogieIcfgContainer [2022-12-14 08:25:59,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:25:59,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:25:59,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:25:59,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:25:59,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:25:58" (1/3) ... [2022-12-14 08:25:59,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f55445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:25:59, skipping insertion in model container [2022-12-14 08:25:59,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:25:58" (2/3) ... [2022-12-14 08:25:59,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f55445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:25:59, skipping insertion in model container [2022-12-14 08:25:59,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:25:59" (3/3) ... [2022-12-14 08:25:59,988 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2004_1.c [2022-12-14 08:26:00,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:26:00,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:26:00,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:26:00,047 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;@5a5d9d76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:26:00,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:26:00,050 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) [2022-12-14 08:26:00,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:26:00,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:26:00,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:26:00,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:26:00,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:26:00,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 08:26:00,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:26:00,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293905528] [2022-12-14 08:26:00,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:26:00,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:26:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:26:00,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:26:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:26:00,199 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:26:00,201 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:26:00,202 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 08:26:00,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:26:00,206 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 08:26:00,209 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:26:00,217 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 08:26:00,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:26:00 BoogieIcfgContainer [2022-12-14 08:26:00,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:26:00,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:26:00,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:26:00,223 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:26:00,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:25:59" (3/4) ... [2022-12-14 08:26:00,225 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:26:00,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:26:00,226 INFO L158 Benchmark]: Toolchain (without parser) took 1582.31ms. Allocated memory was 123.7MB in the beginning and 174.1MB in the end (delta: 50.3MB). Free memory was 88.7MB in the beginning and 125.9MB in the end (delta: -37.2MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-12-14 08:26:00,226 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 123.7MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:26:00,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.32ms. Allocated memory is still 123.7MB. Free memory was 88.7MB in the beginning and 73.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 08:26:00,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.88ms. Allocated memory is still 123.7MB. Free memory was 73.0MB in the beginning and 69.2MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:26:00,228 INFO L158 Benchmark]: Boogie Preprocessor took 28.20ms. Allocated memory is still 123.7MB. Free memory was 69.2MB in the beginning and 67.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:26:00,228 INFO L158 Benchmark]: RCFGBuilder took 993.70ms. Allocated memory was 123.7MB in the beginning and 174.1MB in the end (delta: 50.3MB). Free memory was 67.1MB in the beginning and 45.7MB in the end (delta: 21.4MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. [2022-12-14 08:26:00,228 INFO L158 Benchmark]: TraceAbstraction took 240.27ms. Allocated memory is still 174.1MB. Free memory was 45.7MB in the beginning and 127.0MB in the end (delta: -81.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:26:00,229 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 125.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:26:00,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 123.7MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.32ms. Allocated memory is still 123.7MB. Free memory was 88.7MB in the beginning and 73.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.88ms. Allocated memory is still 123.7MB. Free memory was 73.0MB in the beginning and 69.2MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.20ms. Allocated memory is still 123.7MB. Free memory was 69.2MB in the beginning and 67.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 993.70ms. Allocated memory was 123.7MB in the beginning and 174.1MB in the end (delta: 50.3MB). Free memory was 67.1MB in the beginning and 45.7MB in the end (delta: 21.4MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. * TraceAbstraction took 240.27ms. Allocated memory is still 174.1MB. Free memory was 45.7MB in the beginning and 127.0MB in the end (delta: -81.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 125.9MB in the end (delta: 1.0MB). 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 64, overapproximation of bitwiseAnd at line 69. 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_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 3); [L29] const SORT_23 msb_SORT_23 = (SORT_23)1 << (3 - 1); [L31] const SORT_1 var_3 = 0; [L32] const SORT_1 var_9 = 1; [L34] SORT_1 input_2; [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L40] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L41] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L42] SORT_23 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L43] SORT_23 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L44] SORT_23 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L46] SORT_1 init_5_arg_1 = var_3; [L47] state_4 = init_5_arg_1 [L48] SORT_1 init_14_arg_1 = var_9; [L49] state_13 = init_14_arg_1 [L50] SORT_1 init_16_arg_1 = var_3; [L51] state_15 = init_16_arg_1 [L52] SORT_1 init_18_arg_1 = var_3; [L53] state_17 = init_18_arg_1 [L54] SORT_1 init_20_arg_1 = var_3; [L55] state_19 = init_20_arg_1 [L56] SORT_1 init_22_arg_1 = var_9; [L57] state_21 = init_22_arg_1 VAL [init_14_arg_1=1, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=1, init_5_arg_1=0, mask_SORT_1=1, mask_SORT_23=7, msb_SORT_1=1, msb_SORT_23=4, state_13=1, state_15=0, state_17=0, state_19=0, state_21=1, state_24=0, state_25=0, state_26=0, state_4=0, var_3=0, var_9=1] [L60] input_2 = __VERIFIER_nondet_uchar() [L63] SORT_1 var_6_arg_0 = state_4; [L64] SORT_1 var_6 = ~var_6_arg_0; [L65] SORT_1 var_10_arg_0 = var_6; [L66] SORT_1 var_10 = ~var_10_arg_0; [L67] SORT_1 var_11_arg_0 = var_9; [L68] SORT_1 var_11_arg_1 = var_10; [L69] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L70] var_11 = var_11 & mask_SORT_1 [L71] SORT_1 bad_12_arg_0 = var_11; [L72] CALL __VERIFIER_assert(!(bad_12_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: 0.2s, 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, 0.0s 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 [2022-12-14 08:26:00,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh --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 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 --- 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-2329fc7 [2022-12-14 08:26:01,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:26:01,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:26:01,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:26:01,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:26:01,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:26:01,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:26:01,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:26:01,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:26:01,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:26:01,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:26:01,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:26:01,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:26:01,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:26:01,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:26:01,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:26:01,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:26:01,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:26:01,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:26:01,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:26:01,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:26:01,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:26:01,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:26:01,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:26:01,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:26:01,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:26:01,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:26:01,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:26:01,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:26:01,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:26:01,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:26:01,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:26:01,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:26:01,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:26:01,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:26:01,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:26:01,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:26:01,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:26:01,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:26:01,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:26:01,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:26:01,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 08:26:02,016 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:26:02,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:26:02,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:26:02,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:26:02,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:26:02,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:26:02,018 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:26:02,018 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:26:02,018 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:26:02,018 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:26:02,018 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:26:02,019 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:26:02,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:26:02,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:26:02,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:26:02,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:26:02,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:26:02,020 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:26:02,020 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 08:26:02,021 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 08:26:02,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:26:02,021 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:26:02,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:26:02,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:26:02,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 08:26:02,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:26:02,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:26:02,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:26:02,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:26:02,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:26:02,023 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 08:26:02,023 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 08:26:02,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:26:02,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:26:02,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 08:26:02,024 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_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 [2022-12-14 08:26:02,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:26:02,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:26:02,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:26:02,257 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:26:02,258 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:26:02,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-12-14 08:26:04,877 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:26:05,027 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:26:05,027 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-12-14 08:26:05,034 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/data/e30b1b56c/53ba764708ca41bba4975b2338d095b8/FLAG47d42cd08 [2022-12-14 08:26:05,044 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/data/e30b1b56c/53ba764708ca41bba4975b2338d095b8 [2022-12-14 08:26:05,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:26:05,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:26:05,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:26:05,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:26:05,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:26:05,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e4290f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05, skipping insertion in model container [2022-12-14 08:26:05,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:26:05,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:26:05,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-12-14 08:26:05,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:26:05,252 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:26:05,260 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-12-14 08:26:05,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:26:05,314 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:26:05,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05 WrapperNode [2022-12-14 08:26:05,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:26:05,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:26:05,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:26:05,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:26:05,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,358 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 267 [2022-12-14 08:26:05,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:26:05,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:26:05,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:26:05,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:26:05,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,386 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:26:05,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:26:05,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:26:05,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:26:05,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (1/1) ... [2022-12-14 08:26:05,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:26:05,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:26:05,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:26:05,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:26:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:26:05,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:26:05,553 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:26:05,555 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:26:05,818 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:26:05,825 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:26:05,825 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:26:05,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:26:05 BoogieIcfgContainer [2022-12-14 08:26:05,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:26:05,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:26:05,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:26:05,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:26:05,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:26:05" (1/3) ... [2022-12-14 08:26:05,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54272d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:26:05, skipping insertion in model container [2022-12-14 08:26:05,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:26:05" (2/3) ... [2022-12-14 08:26:05,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54272d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:26:05, skipping insertion in model container [2022-12-14 08:26:05,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:26:05" (3/3) ... [2022-12-14 08:26:05,836 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2004_1.c [2022-12-14 08:26:05,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:26:05,850 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:26:05,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:26:05,892 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;@5cda0c19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:26:05,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:26:05,895 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) [2022-12-14 08:26:05,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 08:26:05,899 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:26:05,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 08:26:05,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:26:05,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:26:05,904 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 08:26:05,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:26:05,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024213844] [2022-12-14 08:26:05,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:26:05,915 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 [2022-12-14 08:26:05,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:26:05,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:26:05,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:26:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:26:05,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 08:26:06,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:26:06,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:06,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:26:06,084 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:26:06,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024213844] [2022-12-14 08:26:06,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024213844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:26:06,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:26:06,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:26:06,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295679115] [2022-12-14 08:26:06,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:26:06,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:26:06,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:26:06,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:26:06,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:26:06,112 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) [2022-12-14 08:26:06,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:26:06,169 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 08:26:06,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:26:06,171 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 [2022-12-14 08:26:06,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:26:06,178 INFO L225 Difference]: With dead ends: 20 [2022-12-14 08:26:06,178 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 08:26:06,181 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 [2022-12-14 08:26:06,184 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 [2022-12-14 08:26:06,185 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] [2022-12-14 08:26:06,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 08:26:06,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 08:26:06,218 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) [2022-12-14 08:26:06,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 08:26:06,219 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 08:26:06,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:26:06,219 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 08:26:06,219 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) [2022-12-14 08:26:06,219 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 08:26:06,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:26:06,220 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:26:06,220 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 08:26:06,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:26:06,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:26:06,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:26:06,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:26:06,425 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 08:26:06,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:26:06,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576313330] [2022-12-14 08:26:06,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:26:06,433 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 [2022-12-14 08:26:06,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:26:06,438 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:26:06,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:26:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:26:06,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 08:26:06,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:26:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:06,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:26:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:07,003 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:26:07,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576313330] [2022-12-14 08:26:07,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576313330] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:26:07,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1848667421] [2022-12-14 08:26:07,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:26:07,004 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 08:26:07,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 08:26:07,005 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 08:26:07,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 08:26:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:26:07,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 08:26:07,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:26:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:07,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:26:07,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:07,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1848667421] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:26:07,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018495168] [2022-12-14 08:26:07,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:26:07,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:26:07,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:26:07,393 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:26:07,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:26:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:26:07,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 08:26:07,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:26:07,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:07,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:26:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:07,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018495168] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:26:07,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 08:26:07,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-12-14 08:26:07,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700168240] [2022-12-14 08:26:07,738 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 08:26:07,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 08:26:07,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:26:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 08:26:07,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 08:26:07,739 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2022-12-14 08:26:07,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:26:07,845 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 08:26:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 08:26:07,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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 [2022-12-14 08:26:07,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:26:07,845 INFO L225 Difference]: With dead ends: 16 [2022-12-14 08:26:07,846 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 08:26:07,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-14 08:26:07,847 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:26:07,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:26:07,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 08:26:07,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 08:26:07,849 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) [2022-12-14 08:26:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 08:26:07,850 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 08:26:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:26:07,850 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 08:26:07,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2022-12-14 08:26:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 08:26:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:26:07,851 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:26:07,851 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 08:26:07,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:26:08,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 08:26:08,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 08:26:08,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:26:08,454 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:26:08,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:26:08,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 08:26:08,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:26:08,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294291082] [2022-12-14 08:26:08,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 08:26:08,459 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 [2022-12-14 08:26:08,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:26:08,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:26:08,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:26:08,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 08:26:08,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:26:08,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 82 conjunts are in the unsatisfiable core [2022-12-14 08:26:08,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:26:08,814 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:08,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:26:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:09,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:26:09,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294291082] [2022-12-14 08:26:09,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294291082] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:26:09,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1121062508] [2022-12-14 08:26:09,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 08:26:09,294 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 08:26:09,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 08:26:09,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 08:26:09,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 08:26:09,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 08:26:09,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:26:09,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 84 conjunts are in the unsatisfiable core [2022-12-14 08:26:09,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:26:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:09,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:26:14,228 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:14,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1121062508] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:26:14,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117611555] [2022-12-14 08:26:14,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 08:26:14,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:26:14,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:26:14,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:26:14,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 08:26:14,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 08:26:14,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:26:14,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 88 conjunts are in the unsatisfiable core [2022-12-14 08:26:14,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:26:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:14,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:26:20,351 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 166 DAG size of output: 164 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:26:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:26:22,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117611555] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:26:22,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 08:26:22,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 9, 9] total 21 [2022-12-14 08:26:22,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206485317] [2022-12-14 08:26:22,630 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 08:26:22,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 08:26:22,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:26:22,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 08:26:22,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=316, Unknown=2, NotChecked=0, Total=420 [2022-12-14 08:26:22,631 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:26:23,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:26:23,383 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-14 08:26:23,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 08:26:23,383 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 08:26:23,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:26:23,383 INFO L225 Difference]: With dead ends: 19 [2022-12-14 08:26:23,383 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 08:26:23,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=154, Invalid=444, Unknown=2, NotChecked=0, Total=600 [2022-12-14 08:26:23,385 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:26:23,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 27 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:26:23,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 08:26:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-14 08:26:23,389 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) [2022-12-14 08:26:23,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 08:26:23,389 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-12-14 08:26:23,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:26:23,390 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 08:26:23,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:26:23,390 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 08:26:23,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 08:26:23,390 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:26:23,391 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-14 08:26:23,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-14 08:26:23,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 08:26:23,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:26:23,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:26:23,993 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:26:23,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:26:23,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-12-14 08:26:23,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:26:23,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94948731] [2022-12-14 08:26:23,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:26:23,998 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 [2022-12-14 08:26:23,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:26:23,999 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:26:24,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:26:24,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 08:26:24,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:26:24,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 152 conjunts are in the unsatisfiable core [2022-12-14 08:26:24,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:26:52,380 WARN L233 SmtUtils]: Spent 27.51s on a formula simplification. DAG size of input: 199 DAG size of output: 189 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:27:03,255 WARN L233 SmtUtils]: Spent 10.70s on a formula simplification that was a NOOP. DAG size: 203 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:27:19,874 WARN L233 SmtUtils]: Spent 16.43s on a formula simplification that was a NOOP. DAG size: 196 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:27:44,861 WARN L233 SmtUtils]: Spent 14.86s on a formula simplification. DAG size of input: 203 DAG size of output: 147 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:27:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:27:44,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:27:58,080 WARN L233 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 341 DAG size of output: 300 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:27:58,236 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:27:58,236 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:27:58,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94948731] [2022-12-14 08:27:58,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94948731] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:27:58,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [154718545] [2022-12-14 08:27:58,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:27:58,237 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 08:27:58,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 08:27:58,238 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 08:27:58,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-12-14 08:27:58,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 08:27:58,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:27:58,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 214 conjunts are in the unsatisfiable core [2022-12-14 08:27:58,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:28:17,489 WARN L233 SmtUtils]: Spent 10.39s on a formula simplification that was a NOOP. DAG size: 158 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:28:36,113 WARN L233 SmtUtils]: Spent 15.04s on a formula simplification. DAG size of input: 172 DAG size of output: 172 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:29:02,350 WARN L233 SmtUtils]: Spent 20.72s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:29:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:29:31,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:29:53,361 WARN L233 SmtUtils]: Spent 19.04s on a formula simplification. DAG size of input: 341 DAG size of output: 267 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:30:07,952 WARN L233 SmtUtils]: Spent 11.08s on a formula simplification. DAG size of input: 436 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:30:08,240 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:30:08,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [154718545] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:30:08,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821420700] [2022-12-14 08:30:08,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:30:08,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:30:08,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:30:08,242 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:30:08,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 08:30:08,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 08:30:08,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:30:08,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 122 conjunts are in the unsatisfiable core [2022-12-14 08:30:08,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:30:10,513 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:30:10,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:30:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:30:17,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821420700] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:30:17,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 08:30:17,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 10, 10] total 36 [2022-12-14 08:30:17,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863778552] [2022-12-14 08:30:17,324 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 08:30:17,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-14 08:30:17,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:30:17,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-14 08:30:17,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1042, Unknown=18, NotChecked=0, Total=1260 [2022-12-14 08:30:17,326 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 36 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 36 states have internal predecessors, (64), 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) [2022-12-14 08:30:23,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:32:41,411 WARN L233 SmtUtils]: Spent 2.02m on a formula simplification. DAG size of input: 456 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:32:43,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:32:44,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:32:46,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:32:48,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:32:49,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:32:51,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:32:53,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:32:57,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:33:00,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:33:01,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:33:03,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:33:06,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:33:07,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:33:29,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:33:39,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:33:40,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:33:42,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:33:44,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 08:33:47,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:33:47,680 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-12-14 08:33:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 08:33:47,680 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 36 states have internal predecessors, (64), 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 [2022-12-14 08:33:47,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:33:47,680 INFO L225 Difference]: With dead ends: 25 [2022-12-14 08:33:47,680 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 08:33:47,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 398.0s TimeCoverageRelationStatistics Valid=326, Invalid=1450, Unknown=30, NotChecked=0, Total=1806 [2022-12-14 08:33:47,682 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 42 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 14 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:33:47,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 45 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 85 Invalid, 13 Unknown, 0 Unchecked, 39.1s Time] [2022-12-14 08:33:47,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 08:33:47,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-12-14 08:33:47,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 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) [2022-12-14 08:33:47,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-12-14 08:33:47,689 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2022-12-14 08:33:47,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:33:47,689 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-12-14 08:33:47,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 36 states have internal predecessors, (64), 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) [2022-12-14 08:33:47,689 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-12-14 08:33:47,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 08:33:47,690 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:33:47,690 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2022-12-14 08:33:47,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 08:33:47,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2022-12-14 08:33:48,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-14 08:33:48,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:33:48,294 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:33:48,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:33:48,295 INFO L85 PathProgramCache]: Analyzing trace with hash -826954269, now seen corresponding path program 4 times [2022-12-14 08:33:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:33:48,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232577964] [2022-12-14 08:33:48,298 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 08:33:48,298 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 [2022-12-14 08:33:48,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:33:48,300 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:33:48,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:33:48,558 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 08:33:48,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:33:48,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 243 conjunts are in the unsatisfiable core [2022-12-14 08:33:48,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:34:22,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-12-14 08:34:22,102 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-12-14 08:34:22,103 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:34:22,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232577964] [2022-12-14 08:34:22,103 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2022-12-14 08:34:22,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [234953952] [2022-12-14 08:34:22,104 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 08:34:22,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 08:34:22,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 08:34:22,105 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 08:34:22,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-12-14 08:34:22,143 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.declareFun(Scriptor.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.declareFun(WrapperScript.java:137) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.declareFun(WrapperScript.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.declareFun(HistoryRecordingScript.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.declareFun(ManagedScript.java:172) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramVarUtils.constructConstantForAuxVar(ProgramVarUtils.java:117) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.computeClosedFormula(UnmodifiableTransFormula.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.(UnmodifiableTransFormula.java:90) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:320) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.decoupleArrayValues(TransFormulaUtils.java:1296) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:387) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 42 more [2022-12-14 08:34:22,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548684044] [2022-12-14 08:34:22,145 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 08:34:22,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:34:22,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:34:22,146 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:34:22,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 08:34:22,184 FATAL L? ?]: Ignoring exception! java.lang.IllegalStateException: ManagedScript already locked by |v_ULTIMATE.start_main_#t~nondet6#1_27| at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramVarUtils.constructConstantForAuxVar(ProgramVarUtils.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.computeClosedFormula(UnmodifiableTransFormula.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.(UnmodifiableTransFormula.java:90) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:320) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.decoupleArrayValues(TransFormulaUtils.java:1296) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:387) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 08:34:22,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:34:22,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2022-12-14 08:34:22,184 ERROR L170 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2022-12-14 08:34:22,184 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2022-12-14 08:34:22,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 08:34:22,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 08:34:22,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2022-12-14 08:34:22,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-14 08:34:22,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_941414cd-61fa-477d-969a-065ae55a8be3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:34:22,796 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2022-12-14 08:34:22,799 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:34:22,815 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 08:34:22,815 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 08:34:22,815 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 08:34:22,815 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 08:34:22,815 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 08:34:22,815 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 08:34:22,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:34:22 BoogieIcfgContainer [2022-12-14 08:34:22,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:34:22,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:34:22,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:34:22,833 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:34:22,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:26:05" (3/4) ... [2022-12-14 08:34:22,835 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:34:22,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:34:22,835 INFO L158 Benchmark]: Toolchain (without parser) took 497788.19ms. Allocated memory was 65.0MB in the beginning and 142.6MB in the end (delta: 77.6MB). Free memory was 37.8MB in the beginning and 53.6MB in the end (delta: -15.7MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2022-12-14 08:34:22,836 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 50.3MB. Free memory is still 28.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:34:22,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.43ms. Allocated memory is still 65.0MB. Free memory was 37.7MB in the beginning and 37.5MB in the end (delta: 168.6kB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-12-14 08:34:22,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.76ms. Allocated memory is still 65.0MB. Free memory was 37.5MB in the beginning and 34.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:34:22,836 INFO L158 Benchmark]: Boogie Preprocessor took 31.61ms. Allocated memory is still 65.0MB. Free memory was 34.6MB in the beginning and 32.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:34:22,836 INFO L158 Benchmark]: RCFGBuilder took 435.72ms. Allocated memory is still 65.0MB. Free memory was 32.5MB in the beginning and 39.1MB in the end (delta: -6.6MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-12-14 08:34:22,837 INFO L158 Benchmark]: TraceAbstraction took 497002.23ms. Allocated memory was 65.0MB in the beginning and 142.6MB in the end (delta: 77.6MB). Free memory was 38.3MB in the beginning and 54.6MB in the end (delta: -16.3MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. [2022-12-14 08:34:22,837 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 53.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:34:22,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 50.3MB. Free memory is still 28.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.43ms. Allocated memory is still 65.0MB. Free memory was 37.7MB in the beginning and 37.5MB in the end (delta: 168.6kB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.76ms. Allocated memory is still 65.0MB. Free memory was 37.5MB in the beginning and 34.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.61ms. Allocated memory is still 65.0MB. Free memory was 34.6MB in the beginning and 32.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 435.72ms. Allocated memory is still 65.0MB. Free memory was 32.5MB in the beginning and 39.1MB in the end (delta: -6.6MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * TraceAbstraction took 497002.23ms. Allocated memory was 65.0MB in the beginning and 142.6MB in the end (delta: 77.6MB). Free memory was 38.3MB in the beginning and 54.6MB in the end (delta: -16.3MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 53.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: unable to decide satisfiability of path constraint. 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_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 3); [L29] const SORT_23 msb_SORT_23 = (SORT_23)1 << (3 - 1); [L31] const SORT_1 var_3 = 0; [L32] const SORT_1 var_9 = 1; [L34] SORT_1 input_2; [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L40] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L41] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L42] SORT_23 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L43] SORT_23 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L44] SORT_23 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L46] SORT_1 init_5_arg_1 = var_3; [L47] state_4 = init_5_arg_1 [L48] SORT_1 init_14_arg_1 = var_9; [L49] state_13 = init_14_arg_1 [L50] SORT_1 init_16_arg_1 = var_3; [L51] state_15 = init_16_arg_1 [L52] SORT_1 init_18_arg_1 = var_3; [L53] state_17 = init_18_arg_1 [L54] SORT_1 init_20_arg_1 = var_3; [L55] state_19 = init_20_arg_1 [L56] SORT_1 init_22_arg_1 = var_9; [L57] state_21 = init_22_arg_1 [L60] input_2 = __VERIFIER_nondet_uchar() [L63] SORT_1 var_6_arg_0 = state_4; [L64] SORT_1 var_6 = ~var_6_arg_0; [L65] SORT_1 var_10_arg_0 = var_6; [L66] SORT_1 var_10 = ~var_10_arg_0; [L67] SORT_1 var_11_arg_0 = var_9; [L68] SORT_1 var_11_arg_1 = var_10; [L69] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L70] var_11 = var_11 & mask_SORT_1 [L71] SORT_1 bad_12_arg_0 = var_11; [L72] CALL __VERIFIER_assert(!(bad_12_arg_0)) [L20] COND FALSE !(!(cond)) [L72] RET __VERIFIER_assert(!(bad_12_arg_0)) [L74] SORT_23 var_28_arg_0 = state_24; [L75] SORT_23 var_28_arg_1 = state_26; [L76] SORT_1 var_28 = var_28_arg_0 < var_28_arg_1; [L77] SORT_1 var_29_arg_0 = var_28; [L78] SORT_1 var_29 = ~var_29_arg_0; [L79] SORT_1 var_30_arg_0 = state_17; [L80] SORT_1 var_30_arg_1 = var_29; [L81] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L82] SORT_1 var_31_arg_0 = state_4; [L83] SORT_1 var_31_arg_1 = var_30; [L84] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L85] SORT_1 var_32_arg_0 = state_21; [L86] SORT_1 var_32_arg_1 = var_31; [L87] SORT_1 var_32_arg_2 = state_4; [L88] SORT_1 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L89] SORT_1 next_33_arg_1 = var_32; [L90] SORT_1 var_34_arg_0 = state_21; [L91] SORT_1 var_34_arg_1 = var_3; [L92] SORT_1 var_34_arg_2 = state_13; [L93] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L94] SORT_1 next_35_arg_1 = var_34; [L95] SORT_23 var_36_arg_0 = state_24; [L96] SORT_23 var_36_arg_1 = state_25; [L97] SORT_1 var_36 = var_36_arg_0 < var_36_arg_1; [L98] SORT_1 var_37_arg_0 = state_13; [L99] SORT_1 var_37_arg_1 = var_36; [L100] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L101] SORT_1 var_38_arg_0 = state_21; [L102] SORT_1 var_38_arg_1 = var_37; [L103] SORT_1 var_38_arg_2 = state_15; [L104] SORT_1 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L105] SORT_1 next_39_arg_1 = var_38; [L106] SORT_23 var_40_arg_0 = state_25; [L107] SORT_23 var_40_arg_1 = state_26; [L108] SORT_1 var_40 = var_40_arg_0 < var_40_arg_1; [L109] SORT_1 var_41_arg_0 = state_15; [L110] SORT_1 var_41_arg_1 = var_40; [L111] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L112] SORT_1 var_42_arg_0 = state_21; [L113] SORT_1 var_42_arg_1 = var_41; [L114] SORT_1 var_42_arg_2 = state_17; [L115] SORT_1 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L116] SORT_1 next_43_arg_1 = var_42; [L117] SORT_23 var_44_arg_0 = state_24; [L118] SORT_23 var_44_arg_1 = state_25; [L119] SORT_1 var_44 = var_44_arg_0 < var_44_arg_1; [L120] SORT_1 var_45_arg_0 = var_44; [L121] SORT_1 var_45 = ~var_45_arg_0; [L122] SORT_1 var_46_arg_0 = state_13; [L123] SORT_1 var_46_arg_1 = var_45; [L124] SORT_1 var_46 = var_46_arg_0 & var_46_arg_1; [L125] SORT_1 var_47_arg_0 = state_19; [L126] SORT_1 var_47_arg_1 = var_46; [L127] SORT_1 var_47 = var_47_arg_0 | var_47_arg_1; [L128] SORT_23 var_48_arg_0 = state_25; [L129] SORT_23 var_48_arg_1 = state_26; [L130] SORT_1 var_48 = var_48_arg_0 < var_48_arg_1; [L131] SORT_1 var_49_arg_0 = var_48; [L132] SORT_1 var_49 = ~var_49_arg_0; [L133] SORT_1 var_50_arg_0 = state_15; [L134] SORT_1 var_50_arg_1 = var_49; [L135] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L136] SORT_1 var_51_arg_0 = var_47; [L137] SORT_1 var_51_arg_1 = var_50; [L138] SORT_1 var_51 = var_51_arg_0 | var_51_arg_1; [L139] SORT_23 var_52_arg_0 = state_24; [L140] SORT_23 var_52_arg_1 = state_26; [L141] SORT_1 var_52 = var_52_arg_0 < var_52_arg_1; [L142] SORT_1 var_53_arg_0 = state_17; [L143] SORT_1 var_53_arg_1 = var_52; [L144] SORT_1 var_53 = var_53_arg_0 & var_53_arg_1; [L145] SORT_1 var_54_arg_0 = var_51; [L146] SORT_1 var_54_arg_1 = var_53; [L147] SORT_1 var_54 = var_54_arg_0 | var_54_arg_1; [L148] SORT_1 var_55_arg_0 = state_21; [L149] SORT_1 var_55_arg_1 = var_54; [L150] SORT_1 var_55_arg_2 = state_19; [L151] SORT_1 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L152] SORT_1 next_56_arg_1 = var_55; [L153] SORT_1 var_57_arg_0 = state_15; [L154] SORT_1 var_57 = ~var_57_arg_0; [L155] SORT_1 var_58_arg_0 = state_13; [L156] SORT_1 var_58_arg_1 = var_57; [L157] SORT_1 var_58 = var_58_arg_0 & var_58_arg_1; [L158] SORT_1 var_59_arg_0 = state_17; [L159] SORT_1 var_59 = ~var_59_arg_0; [L160] SORT_1 var_60_arg_0 = var_58; [L161] SORT_1 var_60_arg_1 = var_59; [L162] SORT_1 var_60 = var_60_arg_0 & var_60_arg_1; [L163] SORT_1 var_61_arg_0 = state_4; [L164] SORT_1 var_61 = ~var_61_arg_0; [L165] SORT_1 var_62_arg_0 = var_60; [L166] SORT_1 var_62_arg_1 = var_61; [L167] SORT_1 var_62 = var_62_arg_0 & var_62_arg_1; [L168] SORT_1 var_63_arg_0 = state_19; [L169] SORT_1 var_63 = ~var_63_arg_0; [L170] SORT_1 var_64_arg_0 = var_62; [L171] SORT_1 var_64_arg_1 = var_63; [L172] SORT_1 var_64 = var_64_arg_0 & var_64_arg_1; [L173] SORT_1 var_65_arg_0 = state_13; [L174] SORT_1 var_65 = ~var_65_arg_0; [L175] SORT_1 var_66_arg_0 = var_65; [L176] SORT_1 var_66_arg_1 = state_15; [L177] SORT_1 var_66 = var_66_arg_0 & var_66_arg_1; [L178] SORT_1 var_67_arg_0 = state_17; [L179] SORT_1 var_67 = ~var_67_arg_0; [L180] SORT_1 var_68_arg_0 = var_66; [L181] SORT_1 var_68_arg_1 = var_67; [L182] SORT_1 var_68 = var_68_arg_0 & var_68_arg_1; [L183] SORT_1 var_69_arg_0 = state_4; [L184] SORT_1 var_69 = ~var_69_arg_0; [L185] SORT_1 var_70_arg_0 = var_68; [L186] SORT_1 var_70_arg_1 = var_69; [L187] SORT_1 var_70 = var_70_arg_0 & var_70_arg_1; [L188] SORT_1 var_71_arg_0 = state_19; [L189] SORT_1 var_71 = ~var_71_arg_0; [L190] SORT_1 var_72_arg_0 = var_70; [L191] SORT_1 var_72_arg_1 = var_71; [L192] SORT_1 var_72 = var_72_arg_0 & var_72_arg_1; [L193] SORT_1 var_73_arg_0 = var_64; [L194] SORT_1 var_73_arg_1 = var_72; [L195] SORT_1 var_73 = var_73_arg_0 | var_73_arg_1; [L196] SORT_1 var_74_arg_0 = state_13; [L197] SORT_1 var_74 = ~var_74_arg_0; [L198] SORT_1 var_75_arg_0 = state_15; [L199] SORT_1 var_75 = ~var_75_arg_0; [L200] SORT_1 var_76_arg_0 = var_74; [L201] SORT_1 var_76_arg_1 = var_75; [L202] SORT_1 var_76 = var_76_arg_0 & var_76_arg_1; [L203] SORT_1 var_77_arg_0 = var_76; [L204] SORT_1 var_77_arg_1 = state_17; [L205] SORT_1 var_77 = var_77_arg_0 & var_77_arg_1; [L206] SORT_1 var_78_arg_0 = state_4; [L207] SORT_1 var_78 = ~var_78_arg_0; [L208] SORT_1 var_79_arg_0 = var_77; [L209] SORT_1 var_79_arg_1 = var_78; [L210] SORT_1 var_79 = var_79_arg_0 & var_79_arg_1; [L211] SORT_1 var_80_arg_0 = state_19; [L212] SORT_1 var_80 = ~var_80_arg_0; [L213] SORT_1 var_81_arg_0 = var_79; [L214] SORT_1 var_81_arg_1 = var_80; [L215] SORT_1 var_81 = var_81_arg_0 & var_81_arg_1; [L216] SORT_1 var_82_arg_0 = var_73; [L217] SORT_1 var_82_arg_1 = var_81; [L218] SORT_1 var_82 = var_82_arg_0 | var_82_arg_1; [L219] SORT_1 var_83_arg_0 = state_13; [L220] SORT_1 var_83 = ~var_83_arg_0; [L221] SORT_1 var_84_arg_0 = state_15; [L222] SORT_1 var_84 = ~var_84_arg_0; [L223] SORT_1 var_85_arg_0 = var_83; [L224] SORT_1 var_85_arg_1 = var_84; [L225] SORT_1 var_85 = var_85_arg_0 & var_85_arg_1; [L226] SORT_1 var_86_arg_0 = state_17; [L227] SORT_1 var_86 = ~var_86_arg_0; [L228] SORT_1 var_87_arg_0 = var_85; [L229] SORT_1 var_87_arg_1 = var_86; [L230] SORT_1 var_87 = var_87_arg_0 & var_87_arg_1; [L231] SORT_1 var_88_arg_0 = var_87; [L232] SORT_1 var_88_arg_1 = state_4; [L233] SORT_1 var_88 = var_88_arg_0 & var_88_arg_1; [L234] SORT_1 var_89_arg_0 = state_19; [L235] SORT_1 var_89 = ~var_89_arg_0; [L236] SORT_1 var_90_arg_0 = var_88; [L237] SORT_1 var_90_arg_1 = var_89; [L238] SORT_1 var_90 = var_90_arg_0 & var_90_arg_1; [L239] SORT_1 var_91_arg_0 = var_82; [L240] SORT_1 var_91_arg_1 = var_90; [L241] SORT_1 var_91 = var_91_arg_0 | var_91_arg_1; [L242] SORT_1 var_92_arg_0 = state_13; [L243] SORT_1 var_92 = ~var_92_arg_0; [L244] SORT_1 var_93_arg_0 = state_15; [L245] SORT_1 var_93 = ~var_93_arg_0; [L246] SORT_1 var_94_arg_0 = var_92; [L247] SORT_1 var_94_arg_1 = var_93; [L248] SORT_1 var_94 = var_94_arg_0 & var_94_arg_1; [L249] SORT_1 var_95_arg_0 = state_17; [L250] SORT_1 var_95 = ~var_95_arg_0; [L251] SORT_1 var_96_arg_0 = var_94; [L252] SORT_1 var_96_arg_1 = var_95; [L253] SORT_1 var_96 = var_96_arg_0 & var_96_arg_1; [L254] SORT_1 var_97_arg_0 = state_4; [L255] SORT_1 var_97 = ~var_97_arg_0; [L256] SORT_1 var_98_arg_0 = var_96; [L257] SORT_1 var_98_arg_1 = var_97; [L258] SORT_1 var_98 = var_98_arg_0 & var_98_arg_1; [L259] SORT_1 var_99_arg_0 = var_98; [L260] SORT_1 var_99_arg_1 = state_19; [L261] SORT_1 var_99 = var_99_arg_0 & var_99_arg_1; [L262] SORT_1 var_100_arg_0 = var_91; [L263] SORT_1 var_100_arg_1 = var_99; [L264] SORT_1 var_100 = var_100_arg_0 | var_100_arg_1; [L265] var_100 = var_100 & mask_SORT_1 [L266] SORT_1 next_101_arg_1 = var_100; [L267] SORT_23 next_102_arg_1 = state_24; [L268] SORT_23 next_103_arg_1 = state_25; [L269] SORT_23 next_104_arg_1 = state_26; [L271] state_4 = next_33_arg_1 [L272] state_13 = next_35_arg_1 [L273] state_15 = next_39_arg_1 [L274] state_17 = next_43_arg_1 [L275] state_19 = next_56_arg_1 [L276] state_21 = next_101_arg_1 [L277] state_24 = next_102_arg_1 [L278] state_25 = next_103_arg_1 [L279] state_26 = next_104_arg_1 [L60] input_2 = __VERIFIER_nondet_uchar() [L63] SORT_1 var_6_arg_0 = state_4; [L64] SORT_1 var_6 = ~var_6_arg_0; [L65] SORT_1 var_10_arg_0 = var_6; [L66] SORT_1 var_10 = ~var_10_arg_0; [L67] SORT_1 var_11_arg_0 = var_9; [L68] SORT_1 var_11_arg_1 = var_10; [L69] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L70] var_11 = var_11 & mask_SORT_1 [L71] SORT_1 bad_12_arg_0 = var_11; [L72] CALL __VERIFIER_assert(!(bad_12_arg_0)) [L20] COND FALSE !(!(cond)) [L72] RET __VERIFIER_assert(!(bad_12_arg_0)) [L74] SORT_23 var_28_arg_0 = state_24; [L75] SORT_23 var_28_arg_1 = state_26; [L76] SORT_1 var_28 = var_28_arg_0 < var_28_arg_1; [L77] SORT_1 var_29_arg_0 = var_28; [L78] SORT_1 var_29 = ~var_29_arg_0; [L79] SORT_1 var_30_arg_0 = state_17; [L80] SORT_1 var_30_arg_1 = var_29; [L81] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L82] SORT_1 var_31_arg_0 = state_4; [L83] SORT_1 var_31_arg_1 = var_30; [L84] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L85] SORT_1 var_32_arg_0 = state_21; [L86] SORT_1 var_32_arg_1 = var_31; [L87] SORT_1 var_32_arg_2 = state_4; [L88] SORT_1 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L89] SORT_1 next_33_arg_1 = var_32; [L90] SORT_1 var_34_arg_0 = state_21; [L91] SORT_1 var_34_arg_1 = var_3; [L92] SORT_1 var_34_arg_2 = state_13; [L93] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L94] SORT_1 next_35_arg_1 = var_34; [L95] SORT_23 var_36_arg_0 = state_24; [L96] SORT_23 var_36_arg_1 = state_25; [L97] SORT_1 var_36 = var_36_arg_0 < var_36_arg_1; [L98] SORT_1 var_37_arg_0 = state_13; [L99] SORT_1 var_37_arg_1 = var_36; [L100] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L101] SORT_1 var_38_arg_0 = state_21; [L102] SORT_1 var_38_arg_1 = var_37; [L103] SORT_1 var_38_arg_2 = state_15; [L104] SORT_1 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L105] SORT_1 next_39_arg_1 = var_38; [L106] SORT_23 var_40_arg_0 = state_25; [L107] SORT_23 var_40_arg_1 = state_26; [L108] SORT_1 var_40 = var_40_arg_0 < var_40_arg_1; [L109] SORT_1 var_41_arg_0 = state_15; [L110] SORT_1 var_41_arg_1 = var_40; [L111] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L112] SORT_1 var_42_arg_0 = state_21; [L113] SORT_1 var_42_arg_1 = var_41; [L114] SORT_1 var_42_arg_2 = state_17; [L115] SORT_1 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L116] SORT_1 next_43_arg_1 = var_42; [L117] SORT_23 var_44_arg_0 = state_24; [L118] SORT_23 var_44_arg_1 = state_25; [L119] SORT_1 var_44 = var_44_arg_0 < var_44_arg_1; [L120] SORT_1 var_45_arg_0 = var_44; [L121] SORT_1 var_45 = ~var_45_arg_0; [L122] SORT_1 var_46_arg_0 = state_13; [L123] SORT_1 var_46_arg_1 = var_45; [L124] SORT_1 var_46 = var_46_arg_0 & var_46_arg_1; [L125] SORT_1 var_47_arg_0 = state_19; [L126] SORT_1 var_47_arg_1 = var_46; [L127] SORT_1 var_47 = var_47_arg_0 | var_47_arg_1; [L128] SORT_23 var_48_arg_0 = state_25; [L129] SORT_23 var_48_arg_1 = state_26; [L130] SORT_1 var_48 = var_48_arg_0 < var_48_arg_1; [L131] SORT_1 var_49_arg_0 = var_48; [L132] SORT_1 var_49 = ~var_49_arg_0; [L133] SORT_1 var_50_arg_0 = state_15; [L134] SORT_1 var_50_arg_1 = var_49; [L135] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L136] SORT_1 var_51_arg_0 = var_47; [L137] SORT_1 var_51_arg_1 = var_50; [L138] SORT_1 var_51 = var_51_arg_0 | var_51_arg_1; [L139] SORT_23 var_52_arg_0 = state_24; [L140] SORT_23 var_52_arg_1 = state_26; [L141] SORT_1 var_52 = var_52_arg_0 < var_52_arg_1; [L142] SORT_1 var_53_arg_0 = state_17; [L143] SORT_1 var_53_arg_1 = var_52; [L144] SORT_1 var_53 = var_53_arg_0 & var_53_arg_1; [L145] SORT_1 var_54_arg_0 = var_51; [L146] SORT_1 var_54_arg_1 = var_53; [L147] SORT_1 var_54 = var_54_arg_0 | var_54_arg_1; [L148] SORT_1 var_55_arg_0 = state_21; [L149] SORT_1 var_55_arg_1 = var_54; [L150] SORT_1 var_55_arg_2 = state_19; [L151] SORT_1 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L152] SORT_1 next_56_arg_1 = var_55; [L153] SORT_1 var_57_arg_0 = state_15; [L154] SORT_1 var_57 = ~var_57_arg_0; [L155] SORT_1 var_58_arg_0 = state_13; [L156] SORT_1 var_58_arg_1 = var_57; [L157] SORT_1 var_58 = var_58_arg_0 & var_58_arg_1; [L158] SORT_1 var_59_arg_0 = state_17; [L159] SORT_1 var_59 = ~var_59_arg_0; [L160] SORT_1 var_60_arg_0 = var_58; [L161] SORT_1 var_60_arg_1 = var_59; [L162] SORT_1 var_60 = var_60_arg_0 & var_60_arg_1; [L163] SORT_1 var_61_arg_0 = state_4; [L164] SORT_1 var_61 = ~var_61_arg_0; [L165] SORT_1 var_62_arg_0 = var_60; [L166] SORT_1 var_62_arg_1 = var_61; [L167] SORT_1 var_62 = var_62_arg_0 & var_62_arg_1; [L168] SORT_1 var_63_arg_0 = state_19; [L169] SORT_1 var_63 = ~var_63_arg_0; [L170] SORT_1 var_64_arg_0 = var_62; [L171] SORT_1 var_64_arg_1 = var_63; [L172] SORT_1 var_64 = var_64_arg_0 & var_64_arg_1; [L173] SORT_1 var_65_arg_0 = state_13; [L174] SORT_1 var_65 = ~var_65_arg_0; [L175] SORT_1 var_66_arg_0 = var_65; [L176] SORT_1 var_66_arg_1 = state_15; [L177] SORT_1 var_66 = var_66_arg_0 & var_66_arg_1; [L178] SORT_1 var_67_arg_0 = state_17; [L179] SORT_1 var_67 = ~var_67_arg_0; [L180] SORT_1 var_68_arg_0 = var_66; [L181] SORT_1 var_68_arg_1 = var_67; [L182] SORT_1 var_68 = var_68_arg_0 & var_68_arg_1; [L183] SORT_1 var_69_arg_0 = state_4; [L184] SORT_1 var_69 = ~var_69_arg_0; [L185] SORT_1 var_70_arg_0 = var_68; [L186] SORT_1 var_70_arg_1 = var_69; [L187] SORT_1 var_70 = var_70_arg_0 & var_70_arg_1; [L188] SORT_1 var_71_arg_0 = state_19; [L189] SORT_1 var_71 = ~var_71_arg_0; [L190] SORT_1 var_72_arg_0 = var_70; [L191] SORT_1 var_72_arg_1 = var_71; [L192] SORT_1 var_72 = var_72_arg_0 & var_72_arg_1; [L193] SORT_1 var_73_arg_0 = var_64; [L194] SORT_1 var_73_arg_1 = var_72; [L195] SORT_1 var_73 = var_73_arg_0 | var_73_arg_1; [L196] SORT_1 var_74_arg_0 = state_13; [L197] SORT_1 var_74 = ~var_74_arg_0; [L198] SORT_1 var_75_arg_0 = state_15; [L199] SORT_1 var_75 = ~var_75_arg_0; [L200] SORT_1 var_76_arg_0 = var_74; [L201] SORT_1 var_76_arg_1 = var_75; [L202] SORT_1 var_76 = var_76_arg_0 & var_76_arg_1; [L203] SORT_1 var_77_arg_0 = var_76; [L204] SORT_1 var_77_arg_1 = state_17; [L205] SORT_1 var_77 = var_77_arg_0 & var_77_arg_1; [L206] SORT_1 var_78_arg_0 = state_4; [L207] SORT_1 var_78 = ~var_78_arg_0; [L208] SORT_1 var_79_arg_0 = var_77; [L209] SORT_1 var_79_arg_1 = var_78; [L210] SORT_1 var_79 = var_79_arg_0 & var_79_arg_1; [L211] SORT_1 var_80_arg_0 = state_19; [L212] SORT_1 var_80 = ~var_80_arg_0; [L213] SORT_1 var_81_arg_0 = var_79; [L214] SORT_1 var_81_arg_1 = var_80; [L215] SORT_1 var_81 = var_81_arg_0 & var_81_arg_1; [L216] SORT_1 var_82_arg_0 = var_73; [L217] SORT_1 var_82_arg_1 = var_81; [L218] SORT_1 var_82 = var_82_arg_0 | var_82_arg_1; [L219] SORT_1 var_83_arg_0 = state_13; [L220] SORT_1 var_83 = ~var_83_arg_0; [L221] SORT_1 var_84_arg_0 = state_15; [L222] SORT_1 var_84 = ~var_84_arg_0; [L223] SORT_1 var_85_arg_0 = var_83; [L224] SORT_1 var_85_arg_1 = var_84; [L225] SORT_1 var_85 = var_85_arg_0 & var_85_arg_1; [L226] SORT_1 var_86_arg_0 = state_17; [L227] SORT_1 var_86 = ~var_86_arg_0; [L228] SORT_1 var_87_arg_0 = var_85; [L229] SORT_1 var_87_arg_1 = var_86; [L230] SORT_1 var_87 = var_87_arg_0 & var_87_arg_1; [L231] SORT_1 var_88_arg_0 = var_87; [L232] SORT_1 var_88_arg_1 = state_4; [L233] SORT_1 var_88 = var_88_arg_0 & var_88_arg_1; [L234] SORT_1 var_89_arg_0 = state_19; [L235] SORT_1 var_89 = ~var_89_arg_0; [L236] SORT_1 var_90_arg_0 = var_88; [L237] SORT_1 var_90_arg_1 = var_89; [L238] SORT_1 var_90 = var_90_arg_0 & var_90_arg_1; [L239] SORT_1 var_91_arg_0 = var_82; [L240] SORT_1 var_91_arg_1 = var_90; [L241] SORT_1 var_91 = var_91_arg_0 | var_91_arg_1; [L242] SORT_1 var_92_arg_0 = state_13; [L243] SORT_1 var_92 = ~var_92_arg_0; [L244] SORT_1 var_93_arg_0 = state_15; [L245] SORT_1 var_93 = ~var_93_arg_0; [L246] SORT_1 var_94_arg_0 = var_92; [L247] SORT_1 var_94_arg_1 = var_93; [L248] SORT_1 var_94 = var_94_arg_0 & var_94_arg_1; [L249] SORT_1 var_95_arg_0 = state_17; [L250] SORT_1 var_95 = ~var_95_arg_0; [L251] SORT_1 var_96_arg_0 = var_94; [L252] SORT_1 var_96_arg_1 = var_95; [L253] SORT_1 var_96 = var_96_arg_0 & var_96_arg_1; [L254] SORT_1 var_97_arg_0 = state_4; [L255] SORT_1 var_97 = ~var_97_arg_0; [L256] SORT_1 var_98_arg_0 = var_96; [L257] SORT_1 var_98_arg_1 = var_97; [L258] SORT_1 var_98 = var_98_arg_0 & var_98_arg_1; [L259] SORT_1 var_99_arg_0 = var_98; [L260] SORT_1 var_99_arg_1 = state_19; [L261] SORT_1 var_99 = var_99_arg_0 & var_99_arg_1; [L262] SORT_1 var_100_arg_0 = var_91; [L263] SORT_1 var_100_arg_1 = var_99; [L264] SORT_1 var_100 = var_100_arg_0 | var_100_arg_1; [L265] var_100 = var_100 & mask_SORT_1 [L266] SORT_1 next_101_arg_1 = var_100; [L267] SORT_23 next_102_arg_1 = state_24; [L268] SORT_23 next_103_arg_1 = state_25; [L269] SORT_23 next_104_arg_1 = state_26; [L271] state_4 = next_33_arg_1 [L272] state_13 = next_35_arg_1 [L273] state_15 = next_39_arg_1 [L274] state_17 = next_43_arg_1 [L275] state_19 = next_56_arg_1 [L276] state_21 = next_101_arg_1 [L277] state_24 = next_102_arg_1 [L278] state_25 = next_103_arg_1 [L279] state_26 = next_104_arg_1 [L60] input_2 = __VERIFIER_nondet_uchar() [L63] SORT_1 var_6_arg_0 = state_4; [L64] SORT_1 var_6 = ~var_6_arg_0; [L65] SORT_1 var_10_arg_0 = var_6; [L66] SORT_1 var_10 = ~var_10_arg_0; [L67] SORT_1 var_11_arg_0 = var_9; [L68] SORT_1 var_11_arg_1 = var_10; [L69] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L70] var_11 = var_11 & mask_SORT_1 [L71] SORT_1 bad_12_arg_0 = var_11; [L72] CALL __VERIFIER_assert(!(bad_12_arg_0)) [L20] COND FALSE !(!(cond)) [L72] RET __VERIFIER_assert(!(bad_12_arg_0)) [L74] SORT_23 var_28_arg_0 = state_24; [L75] SORT_23 var_28_arg_1 = state_26; [L76] SORT_1 var_28 = var_28_arg_0 < var_28_arg_1; [L77] SORT_1 var_29_arg_0 = var_28; [L78] SORT_1 var_29 = ~var_29_arg_0; [L79] SORT_1 var_30_arg_0 = state_17; [L80] SORT_1 var_30_arg_1 = var_29; [L81] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L82] SORT_1 var_31_arg_0 = state_4; [L83] SORT_1 var_31_arg_1 = var_30; [L84] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L85] SORT_1 var_32_arg_0 = state_21; [L86] SORT_1 var_32_arg_1 = var_31; [L87] SORT_1 var_32_arg_2 = state_4; [L88] SORT_1 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L89] SORT_1 next_33_arg_1 = var_32; [L90] SORT_1 var_34_arg_0 = state_21; [L91] SORT_1 var_34_arg_1 = var_3; [L92] SORT_1 var_34_arg_2 = state_13; [L93] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L94] SORT_1 next_35_arg_1 = var_34; [L95] SORT_23 var_36_arg_0 = state_24; [L96] SORT_23 var_36_arg_1 = state_25; [L97] SORT_1 var_36 = var_36_arg_0 < var_36_arg_1; [L98] SORT_1 var_37_arg_0 = state_13; [L99] SORT_1 var_37_arg_1 = var_36; [L100] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L101] SORT_1 var_38_arg_0 = state_21; [L102] SORT_1 var_38_arg_1 = var_37; [L103] SORT_1 var_38_arg_2 = state_15; [L104] SORT_1 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L105] SORT_1 next_39_arg_1 = var_38; [L106] SORT_23 var_40_arg_0 = state_25; [L107] SORT_23 var_40_arg_1 = state_26; [L108] SORT_1 var_40 = var_40_arg_0 < var_40_arg_1; [L109] SORT_1 var_41_arg_0 = state_15; [L110] SORT_1 var_41_arg_1 = var_40; [L111] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L112] SORT_1 var_42_arg_0 = state_21; [L113] SORT_1 var_42_arg_1 = var_41; [L114] SORT_1 var_42_arg_2 = state_17; [L115] SORT_1 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L116] SORT_1 next_43_arg_1 = var_42; [L117] SORT_23 var_44_arg_0 = state_24; [L118] SORT_23 var_44_arg_1 = state_25; [L119] SORT_1 var_44 = var_44_arg_0 < var_44_arg_1; [L120] SORT_1 var_45_arg_0 = var_44; [L121] SORT_1 var_45 = ~var_45_arg_0; [L122] SORT_1 var_46_arg_0 = state_13; [L123] SORT_1 var_46_arg_1 = var_45; [L124] SORT_1 var_46 = var_46_arg_0 & var_46_arg_1; [L125] SORT_1 var_47_arg_0 = state_19; [L126] SORT_1 var_47_arg_1 = var_46; [L127] SORT_1 var_47 = var_47_arg_0 | var_47_arg_1; [L128] SORT_23 var_48_arg_0 = state_25; [L129] SORT_23 var_48_arg_1 = state_26; [L130] SORT_1 var_48 = var_48_arg_0 < var_48_arg_1; [L131] SORT_1 var_49_arg_0 = var_48; [L132] SORT_1 var_49 = ~var_49_arg_0; [L133] SORT_1 var_50_arg_0 = state_15; [L134] SORT_1 var_50_arg_1 = var_49; [L135] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L136] SORT_1 var_51_arg_0 = var_47; [L137] SORT_1 var_51_arg_1 = var_50; [L138] SORT_1 var_51 = var_51_arg_0 | var_51_arg_1; [L139] SORT_23 var_52_arg_0 = state_24; [L140] SORT_23 var_52_arg_1 = state_26; [L141] SORT_1 var_52 = var_52_arg_0 < var_52_arg_1; [L142] SORT_1 var_53_arg_0 = state_17; [L143] SORT_1 var_53_arg_1 = var_52; [L144] SORT_1 var_53 = var_53_arg_0 & var_53_arg_1; [L145] SORT_1 var_54_arg_0 = var_51; [L146] SORT_1 var_54_arg_1 = var_53; [L147] SORT_1 var_54 = var_54_arg_0 | var_54_arg_1; [L148] SORT_1 var_55_arg_0 = state_21; [L149] SORT_1 var_55_arg_1 = var_54; [L150] SORT_1 var_55_arg_2 = state_19; [L151] SORT_1 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L152] SORT_1 next_56_arg_1 = var_55; [L153] SORT_1 var_57_arg_0 = state_15; [L154] SORT_1 var_57 = ~var_57_arg_0; [L155] SORT_1 var_58_arg_0 = state_13; [L156] SORT_1 var_58_arg_1 = var_57; [L157] SORT_1 var_58 = var_58_arg_0 & var_58_arg_1; [L158] SORT_1 var_59_arg_0 = state_17; [L159] SORT_1 var_59 = ~var_59_arg_0; [L160] SORT_1 var_60_arg_0 = var_58; [L161] SORT_1 var_60_arg_1 = var_59; [L162] SORT_1 var_60 = var_60_arg_0 & var_60_arg_1; [L163] SORT_1 var_61_arg_0 = state_4; [L164] SORT_1 var_61 = ~var_61_arg_0; [L165] SORT_1 var_62_arg_0 = var_60; [L166] SORT_1 var_62_arg_1 = var_61; [L167] SORT_1 var_62 = var_62_arg_0 & var_62_arg_1; [L168] SORT_1 var_63_arg_0 = state_19; [L169] SORT_1 var_63 = ~var_63_arg_0; [L170] SORT_1 var_64_arg_0 = var_62; [L171] SORT_1 var_64_arg_1 = var_63; [L172] SORT_1 var_64 = var_64_arg_0 & var_64_arg_1; [L173] SORT_1 var_65_arg_0 = state_13; [L174] SORT_1 var_65 = ~var_65_arg_0; [L175] SORT_1 var_66_arg_0 = var_65; [L176] SORT_1 var_66_arg_1 = state_15; [L177] SORT_1 var_66 = var_66_arg_0 & var_66_arg_1; [L178] SORT_1 var_67_arg_0 = state_17; [L179] SORT_1 var_67 = ~var_67_arg_0; [L180] SORT_1 var_68_arg_0 = var_66; [L181] SORT_1 var_68_arg_1 = var_67; [L182] SORT_1 var_68 = var_68_arg_0 & var_68_arg_1; [L183] SORT_1 var_69_arg_0 = state_4; [L184] SORT_1 var_69 = ~var_69_arg_0; [L185] SORT_1 var_70_arg_0 = var_68; [L186] SORT_1 var_70_arg_1 = var_69; [L187] SORT_1 var_70 = var_70_arg_0 & var_70_arg_1; [L188] SORT_1 var_71_arg_0 = state_19; [L189] SORT_1 var_71 = ~var_71_arg_0; [L190] SORT_1 var_72_arg_0 = var_70; [L191] SORT_1 var_72_arg_1 = var_71; [L192] SORT_1 var_72 = var_72_arg_0 & var_72_arg_1; [L193] SORT_1 var_73_arg_0 = var_64; [L194] SORT_1 var_73_arg_1 = var_72; [L195] SORT_1 var_73 = var_73_arg_0 | var_73_arg_1; [L196] SORT_1 var_74_arg_0 = state_13; [L197] SORT_1 var_74 = ~var_74_arg_0; [L198] SORT_1 var_75_arg_0 = state_15; [L199] SORT_1 var_75 = ~var_75_arg_0; [L200] SORT_1 var_76_arg_0 = var_74; [L201] SORT_1 var_76_arg_1 = var_75; [L202] SORT_1 var_76 = var_76_arg_0 & var_76_arg_1; [L203] SORT_1 var_77_arg_0 = var_76; [L204] SORT_1 var_77_arg_1 = state_17; [L205] SORT_1 var_77 = var_77_arg_0 & var_77_arg_1; [L206] SORT_1 var_78_arg_0 = state_4; [L207] SORT_1 var_78 = ~var_78_arg_0; [L208] SORT_1 var_79_arg_0 = var_77; [L209] SORT_1 var_79_arg_1 = var_78; [L210] SORT_1 var_79 = var_79_arg_0 & var_79_arg_1; [L211] SORT_1 var_80_arg_0 = state_19; [L212] SORT_1 var_80 = ~var_80_arg_0; [L213] SORT_1 var_81_arg_0 = var_79; [L214] SORT_1 var_81_arg_1 = var_80; [L215] SORT_1 var_81 = var_81_arg_0 & var_81_arg_1; [L216] SORT_1 var_82_arg_0 = var_73; [L217] SORT_1 var_82_arg_1 = var_81; [L218] SORT_1 var_82 = var_82_arg_0 | var_82_arg_1; [L219] SORT_1 var_83_arg_0 = state_13; [L220] SORT_1 var_83 = ~var_83_arg_0; [L221] SORT_1 var_84_arg_0 = state_15; [L222] SORT_1 var_84 = ~var_84_arg_0; [L223] SORT_1 var_85_arg_0 = var_83; [L224] SORT_1 var_85_arg_1 = var_84; [L225] SORT_1 var_85 = var_85_arg_0 & var_85_arg_1; [L226] SORT_1 var_86_arg_0 = state_17; [L227] SORT_1 var_86 = ~var_86_arg_0; [L228] SORT_1 var_87_arg_0 = var_85; [L229] SORT_1 var_87_arg_1 = var_86; [L230] SORT_1 var_87 = var_87_arg_0 & var_87_arg_1; [L231] SORT_1 var_88_arg_0 = var_87; [L232] SORT_1 var_88_arg_1 = state_4; [L233] SORT_1 var_88 = var_88_arg_0 & var_88_arg_1; [L234] SORT_1 var_89_arg_0 = state_19; [L235] SORT_1 var_89 = ~var_89_arg_0; [L236] SORT_1 var_90_arg_0 = var_88; [L237] SORT_1 var_90_arg_1 = var_89; [L238] SORT_1 var_90 = var_90_arg_0 & var_90_arg_1; [L239] SORT_1 var_91_arg_0 = var_82; [L240] SORT_1 var_91_arg_1 = var_90; [L241] SORT_1 var_91 = var_91_arg_0 | var_91_arg_1; [L242] SORT_1 var_92_arg_0 = state_13; [L243] SORT_1 var_92 = ~var_92_arg_0; [L244] SORT_1 var_93_arg_0 = state_15; [L245] SORT_1 var_93 = ~var_93_arg_0; [L246] SORT_1 var_94_arg_0 = var_92; [L247] SORT_1 var_94_arg_1 = var_93; [L248] SORT_1 var_94 = var_94_arg_0 & var_94_arg_1; [L249] SORT_1 var_95_arg_0 = state_17; [L250] SORT_1 var_95 = ~var_95_arg_0; [L251] SORT_1 var_96_arg_0 = var_94; [L252] SORT_1 var_96_arg_1 = var_95; [L253] SORT_1 var_96 = var_96_arg_0 & var_96_arg_1; [L254] SORT_1 var_97_arg_0 = state_4; [L255] SORT_1 var_97 = ~var_97_arg_0; [L256] SORT_1 var_98_arg_0 = var_96; [L257] SORT_1 var_98_arg_1 = var_97; [L258] SORT_1 var_98 = var_98_arg_0 & var_98_arg_1; [L259] SORT_1 var_99_arg_0 = var_98; [L260] SORT_1 var_99_arg_1 = state_19; [L261] SORT_1 var_99 = var_99_arg_0 & var_99_arg_1; [L262] SORT_1 var_100_arg_0 = var_91; [L263] SORT_1 var_100_arg_1 = var_99; [L264] SORT_1 var_100 = var_100_arg_0 | var_100_arg_1; [L265] var_100 = var_100 & mask_SORT_1 [L266] SORT_1 next_101_arg_1 = var_100; [L267] SORT_23 next_102_arg_1 = state_24; [L268] SORT_23 next_103_arg_1 = state_25; [L269] SORT_23 next_104_arg_1 = state_26; [L271] state_4 = next_33_arg_1 [L272] state_13 = next_35_arg_1 [L273] state_15 = next_39_arg_1 [L274] state_17 = next_43_arg_1 [L275] state_19 = next_56_arg_1 [L276] state_21 = next_101_arg_1 [L277] state_24 = next_102_arg_1 [L278] state_25 = next_103_arg_1 [L279] state_26 = next_104_arg_1 [L60] input_2 = __VERIFIER_nondet_uchar() [L63] SORT_1 var_6_arg_0 = state_4; [L64] SORT_1 var_6 = ~var_6_arg_0; [L65] SORT_1 var_10_arg_0 = var_6; [L66] SORT_1 var_10 = ~var_10_arg_0; [L67] SORT_1 var_11_arg_0 = var_9; [L68] SORT_1 var_11_arg_1 = var_10; [L69] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L70] var_11 = var_11 & mask_SORT_1 [L71] SORT_1 bad_12_arg_0 = var_11; [L72] CALL __VERIFIER_assert(!(bad_12_arg_0)) [L20] COND FALSE !(!(cond)) [L72] RET __VERIFIER_assert(!(bad_12_arg_0)) [L74] SORT_23 var_28_arg_0 = state_24; [L75] SORT_23 var_28_arg_1 = state_26; [L76] SORT_1 var_28 = var_28_arg_0 < var_28_arg_1; [L77] SORT_1 var_29_arg_0 = var_28; [L78] SORT_1 var_29 = ~var_29_arg_0; [L79] SORT_1 var_30_arg_0 = state_17; [L80] SORT_1 var_30_arg_1 = var_29; [L81] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L82] SORT_1 var_31_arg_0 = state_4; [L83] SORT_1 var_31_arg_1 = var_30; [L84] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L85] SORT_1 var_32_arg_0 = state_21; [L86] SORT_1 var_32_arg_1 = var_31; [L87] SORT_1 var_32_arg_2 = state_4; [L88] SORT_1 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L89] SORT_1 next_33_arg_1 = var_32; [L90] SORT_1 var_34_arg_0 = state_21; [L91] SORT_1 var_34_arg_1 = var_3; [L92] SORT_1 var_34_arg_2 = state_13; [L93] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L94] SORT_1 next_35_arg_1 = var_34; [L95] SORT_23 var_36_arg_0 = state_24; [L96] SORT_23 var_36_arg_1 = state_25; [L97] SORT_1 var_36 = var_36_arg_0 < var_36_arg_1; [L98] SORT_1 var_37_arg_0 = state_13; [L99] SORT_1 var_37_arg_1 = var_36; [L100] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L101] SORT_1 var_38_arg_0 = state_21; [L102] SORT_1 var_38_arg_1 = var_37; [L103] SORT_1 var_38_arg_2 = state_15; [L104] SORT_1 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L105] SORT_1 next_39_arg_1 = var_38; [L106] SORT_23 var_40_arg_0 = state_25; [L107] SORT_23 var_40_arg_1 = state_26; [L108] SORT_1 var_40 = var_40_arg_0 < var_40_arg_1; [L109] SORT_1 var_41_arg_0 = state_15; [L110] SORT_1 var_41_arg_1 = var_40; [L111] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L112] SORT_1 var_42_arg_0 = state_21; [L113] SORT_1 var_42_arg_1 = var_41; [L114] SORT_1 var_42_arg_2 = state_17; [L115] SORT_1 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L116] SORT_1 next_43_arg_1 = var_42; [L117] SORT_23 var_44_arg_0 = state_24; [L118] SORT_23 var_44_arg_1 = state_25; [L119] SORT_1 var_44 = var_44_arg_0 < var_44_arg_1; [L120] SORT_1 var_45_arg_0 = var_44; [L121] SORT_1 var_45 = ~var_45_arg_0; [L122] SORT_1 var_46_arg_0 = state_13; [L123] SORT_1 var_46_arg_1 = var_45; [L124] SORT_1 var_46 = var_46_arg_0 & var_46_arg_1; [L125] SORT_1 var_47_arg_0 = state_19; [L126] SORT_1 var_47_arg_1 = var_46; [L127] SORT_1 var_47 = var_47_arg_0 | var_47_arg_1; [L128] SORT_23 var_48_arg_0 = state_25; [L129] SORT_23 var_48_arg_1 = state_26; [L130] SORT_1 var_48 = var_48_arg_0 < var_48_arg_1; [L131] SORT_1 var_49_arg_0 = var_48; [L132] SORT_1 var_49 = ~var_49_arg_0; [L133] SORT_1 var_50_arg_0 = state_15; [L134] SORT_1 var_50_arg_1 = var_49; [L135] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L136] SORT_1 var_51_arg_0 = var_47; [L137] SORT_1 var_51_arg_1 = var_50; [L138] SORT_1 var_51 = var_51_arg_0 | var_51_arg_1; [L139] SORT_23 var_52_arg_0 = state_24; [L140] SORT_23 var_52_arg_1 = state_26; [L141] SORT_1 var_52 = var_52_arg_0 < var_52_arg_1; [L142] SORT_1 var_53_arg_0 = state_17; [L143] SORT_1 var_53_arg_1 = var_52; [L144] SORT_1 var_53 = var_53_arg_0 & var_53_arg_1; [L145] SORT_1 var_54_arg_0 = var_51; [L146] SORT_1 var_54_arg_1 = var_53; [L147] SORT_1 var_54 = var_54_arg_0 | var_54_arg_1; [L148] SORT_1 var_55_arg_0 = state_21; [L149] SORT_1 var_55_arg_1 = var_54; [L150] SORT_1 var_55_arg_2 = state_19; [L151] SORT_1 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L152] SORT_1 next_56_arg_1 = var_55; [L153] SORT_1 var_57_arg_0 = state_15; [L154] SORT_1 var_57 = ~var_57_arg_0; [L155] SORT_1 var_58_arg_0 = state_13; [L156] SORT_1 var_58_arg_1 = var_57; [L157] SORT_1 var_58 = var_58_arg_0 & var_58_arg_1; [L158] SORT_1 var_59_arg_0 = state_17; [L159] SORT_1 var_59 = ~var_59_arg_0; [L160] SORT_1 var_60_arg_0 = var_58; [L161] SORT_1 var_60_arg_1 = var_59; [L162] SORT_1 var_60 = var_60_arg_0 & var_60_arg_1; [L163] SORT_1 var_61_arg_0 = state_4; [L164] SORT_1 var_61 = ~var_61_arg_0; [L165] SORT_1 var_62_arg_0 = var_60; [L166] SORT_1 var_62_arg_1 = var_61; [L167] SORT_1 var_62 = var_62_arg_0 & var_62_arg_1; [L168] SORT_1 var_63_arg_0 = state_19; [L169] SORT_1 var_63 = ~var_63_arg_0; [L170] SORT_1 var_64_arg_0 = var_62; [L171] SORT_1 var_64_arg_1 = var_63; [L172] SORT_1 var_64 = var_64_arg_0 & var_64_arg_1; [L173] SORT_1 var_65_arg_0 = state_13; [L174] SORT_1 var_65 = ~var_65_arg_0; [L175] SORT_1 var_66_arg_0 = var_65; [L176] SORT_1 var_66_arg_1 = state_15; [L177] SORT_1 var_66 = var_66_arg_0 & var_66_arg_1; [L178] SORT_1 var_67_arg_0 = state_17; [L179] SORT_1 var_67 = ~var_67_arg_0; [L180] SORT_1 var_68_arg_0 = var_66; [L181] SORT_1 var_68_arg_1 = var_67; [L182] SORT_1 var_68 = var_68_arg_0 & var_68_arg_1; [L183] SORT_1 var_69_arg_0 = state_4; [L184] SORT_1 var_69 = ~var_69_arg_0; [L185] SORT_1 var_70_arg_0 = var_68; [L186] SORT_1 var_70_arg_1 = var_69; [L187] SORT_1 var_70 = var_70_arg_0 & var_70_arg_1; [L188] SORT_1 var_71_arg_0 = state_19; [L189] SORT_1 var_71 = ~var_71_arg_0; [L190] SORT_1 var_72_arg_0 = var_70; [L191] SORT_1 var_72_arg_1 = var_71; [L192] SORT_1 var_72 = var_72_arg_0 & var_72_arg_1; [L193] SORT_1 var_73_arg_0 = var_64; [L194] SORT_1 var_73_arg_1 = var_72; [L195] SORT_1 var_73 = var_73_arg_0 | var_73_arg_1; [L196] SORT_1 var_74_arg_0 = state_13; [L197] SORT_1 var_74 = ~var_74_arg_0; [L198] SORT_1 var_75_arg_0 = state_15; [L199] SORT_1 var_75 = ~var_75_arg_0; [L200] SORT_1 var_76_arg_0 = var_74; [L201] SORT_1 var_76_arg_1 = var_75; [L202] SORT_1 var_76 = var_76_arg_0 & var_76_arg_1; [L203] SORT_1 var_77_arg_0 = var_76; [L204] SORT_1 var_77_arg_1 = state_17; [L205] SORT_1 var_77 = var_77_arg_0 & var_77_arg_1; [L206] SORT_1 var_78_arg_0 = state_4; [L207] SORT_1 var_78 = ~var_78_arg_0; [L208] SORT_1 var_79_arg_0 = var_77; [L209] SORT_1 var_79_arg_1 = var_78; [L210] SORT_1 var_79 = var_79_arg_0 & var_79_arg_1; [L211] SORT_1 var_80_arg_0 = state_19; [L212] SORT_1 var_80 = ~var_80_arg_0; [L213] SORT_1 var_81_arg_0 = var_79; [L214] SORT_1 var_81_arg_1 = var_80; [L215] SORT_1 var_81 = var_81_arg_0 & var_81_arg_1; [L216] SORT_1 var_82_arg_0 = var_73; [L217] SORT_1 var_82_arg_1 = var_81; [L218] SORT_1 var_82 = var_82_arg_0 | var_82_arg_1; [L219] SORT_1 var_83_arg_0 = state_13; [L220] SORT_1 var_83 = ~var_83_arg_0; [L221] SORT_1 var_84_arg_0 = state_15; [L222] SORT_1 var_84 = ~var_84_arg_0; [L223] SORT_1 var_85_arg_0 = var_83; [L224] SORT_1 var_85_arg_1 = var_84; [L225] SORT_1 var_85 = var_85_arg_0 & var_85_arg_1; [L226] SORT_1 var_86_arg_0 = state_17; [L227] SORT_1 var_86 = ~var_86_arg_0; [L228] SORT_1 var_87_arg_0 = var_85; [L229] SORT_1 var_87_arg_1 = var_86; [L230] SORT_1 var_87 = var_87_arg_0 & var_87_arg_1; [L231] SORT_1 var_88_arg_0 = var_87; [L232] SORT_1 var_88_arg_1 = state_4; [L233] SORT_1 var_88 = var_88_arg_0 & var_88_arg_1; [L234] SORT_1 var_89_arg_0 = state_19; [L235] SORT_1 var_89 = ~var_89_arg_0; [L236] SORT_1 var_90_arg_0 = var_88; [L237] SORT_1 var_90_arg_1 = var_89; [L238] SORT_1 var_90 = var_90_arg_0 & var_90_arg_1; [L239] SORT_1 var_91_arg_0 = var_82; [L240] SORT_1 var_91_arg_1 = var_90; [L241] SORT_1 var_91 = var_91_arg_0 | var_91_arg_1; [L242] SORT_1 var_92_arg_0 = state_13; [L243] SORT_1 var_92 = ~var_92_arg_0; [L244] SORT_1 var_93_arg_0 = state_15; [L245] SORT_1 var_93 = ~var_93_arg_0; [L246] SORT_1 var_94_arg_0 = var_92; [L247] SORT_1 var_94_arg_1 = var_93; [L248] SORT_1 var_94 = var_94_arg_0 & var_94_arg_1; [L249] SORT_1 var_95_arg_0 = state_17; [L250] SORT_1 var_95 = ~var_95_arg_0; [L251] SORT_1 var_96_arg_0 = var_94; [L252] SORT_1 var_96_arg_1 = var_95; [L253] SORT_1 var_96 = var_96_arg_0 & var_96_arg_1; [L254] SORT_1 var_97_arg_0 = state_4; [L255] SORT_1 var_97 = ~var_97_arg_0; [L256] SORT_1 var_98_arg_0 = var_96; [L257] SORT_1 var_98_arg_1 = var_97; [L258] SORT_1 var_98 = var_98_arg_0 & var_98_arg_1; [L259] SORT_1 var_99_arg_0 = var_98; [L260] SORT_1 var_99_arg_1 = state_19; [L261] SORT_1 var_99 = var_99_arg_0 & var_99_arg_1; [L262] SORT_1 var_100_arg_0 = var_91; [L263] SORT_1 var_100_arg_1 = var_99; [L264] SORT_1 var_100 = var_100_arg_0 | var_100_arg_1; [L265] var_100 = var_100 & mask_SORT_1 [L266] SORT_1 next_101_arg_1 = var_100; [L267] SORT_23 next_102_arg_1 = state_24; [L268] SORT_23 next_103_arg_1 = state_25; [L269] SORT_23 next_104_arg_1 = state_26; [L271] state_4 = next_33_arg_1 [L272] state_13 = next_35_arg_1 [L273] state_15 = next_39_arg_1 [L274] state_17 = next_43_arg_1 [L275] state_19 = next_56_arg_1 [L276] state_21 = next_101_arg_1 [L277] state_24 = next_102_arg_1 [L278] state_25 = next_103_arg_1 [L279] state_26 = next_104_arg_1 [L60] input_2 = __VERIFIER_nondet_uchar() [L63] SORT_1 var_6_arg_0 = state_4; [L64] SORT_1 var_6 = ~var_6_arg_0; [L65] SORT_1 var_10_arg_0 = var_6; [L66] SORT_1 var_10 = ~var_10_arg_0; [L67] SORT_1 var_11_arg_0 = var_9; [L68] SORT_1 var_11_arg_1 = var_10; [L69] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L70] var_11 = var_11 & mask_SORT_1 [L71] SORT_1 bad_12_arg_0 = var_11; [L72] CALL __VERIFIER_assert(!(bad_12_arg_0)) [L20] COND FALSE !(!(cond)) [L72] RET __VERIFIER_assert(!(bad_12_arg_0)) [L74] SORT_23 var_28_arg_0 = state_24; [L75] SORT_23 var_28_arg_1 = state_26; [L76] SORT_1 var_28 = var_28_arg_0 < var_28_arg_1; [L77] SORT_1 var_29_arg_0 = var_28; [L78] SORT_1 var_29 = ~var_29_arg_0; [L79] SORT_1 var_30_arg_0 = state_17; [L80] SORT_1 var_30_arg_1 = var_29; [L81] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L82] SORT_1 var_31_arg_0 = state_4; [L83] SORT_1 var_31_arg_1 = var_30; [L84] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L85] SORT_1 var_32_arg_0 = state_21; [L86] SORT_1 var_32_arg_1 = var_31; [L87] SORT_1 var_32_arg_2 = state_4; [L88] SORT_1 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L89] SORT_1 next_33_arg_1 = var_32; [L90] SORT_1 var_34_arg_0 = state_21; [L91] SORT_1 var_34_arg_1 = var_3; [L92] SORT_1 var_34_arg_2 = state_13; [L93] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L94] SORT_1 next_35_arg_1 = var_34; [L95] SORT_23 var_36_arg_0 = state_24; [L96] SORT_23 var_36_arg_1 = state_25; [L97] SORT_1 var_36 = var_36_arg_0 < var_36_arg_1; [L98] SORT_1 var_37_arg_0 = state_13; [L99] SORT_1 var_37_arg_1 = var_36; [L100] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L101] SORT_1 var_38_arg_0 = state_21; [L102] SORT_1 var_38_arg_1 = var_37; [L103] SORT_1 var_38_arg_2 = state_15; [L104] SORT_1 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L105] SORT_1 next_39_arg_1 = var_38; [L106] SORT_23 var_40_arg_0 = state_25; [L107] SORT_23 var_40_arg_1 = state_26; [L108] SORT_1 var_40 = var_40_arg_0 < var_40_arg_1; [L109] SORT_1 var_41_arg_0 = state_15; [L110] SORT_1 var_41_arg_1 = var_40; [L111] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L112] SORT_1 var_42_arg_0 = state_21; [L113] SORT_1 var_42_arg_1 = var_41; [L114] SORT_1 var_42_arg_2 = state_17; [L115] SORT_1 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L116] SORT_1 next_43_arg_1 = var_42; [L117] SORT_23 var_44_arg_0 = state_24; [L118] SORT_23 var_44_arg_1 = state_25; [L119] SORT_1 var_44 = var_44_arg_0 < var_44_arg_1; [L120] SORT_1 var_45_arg_0 = var_44; [L121] SORT_1 var_45 = ~var_45_arg_0; [L122] SORT_1 var_46_arg_0 = state_13; [L123] SORT_1 var_46_arg_1 = var_45; [L124] SORT_1 var_46 = var_46_arg_0 & var_46_arg_1; [L125] SORT_1 var_47_arg_0 = state_19; [L126] SORT_1 var_47_arg_1 = var_46; [L127] SORT_1 var_47 = var_47_arg_0 | var_47_arg_1; [L128] SORT_23 var_48_arg_0 = state_25; [L129] SORT_23 var_48_arg_1 = state_26; [L130] SORT_1 var_48 = var_48_arg_0 < var_48_arg_1; [L131] SORT_1 var_49_arg_0 = var_48; [L132] SORT_1 var_49 = ~var_49_arg_0; [L133] SORT_1 var_50_arg_0 = state_15; [L134] SORT_1 var_50_arg_1 = var_49; [L135] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L136] SORT_1 var_51_arg_0 = var_47; [L137] SORT_1 var_51_arg_1 = var_50; [L138] SORT_1 var_51 = var_51_arg_0 | var_51_arg_1; [L139] SORT_23 var_52_arg_0 = state_24; [L140] SORT_23 var_52_arg_1 = state_26; [L141] SORT_1 var_52 = var_52_arg_0 < var_52_arg_1; [L142] SORT_1 var_53_arg_0 = state_17; [L143] SORT_1 var_53_arg_1 = var_52; [L144] SORT_1 var_53 = var_53_arg_0 & var_53_arg_1; [L145] SORT_1 var_54_arg_0 = var_51; [L146] SORT_1 var_54_arg_1 = var_53; [L147] SORT_1 var_54 = var_54_arg_0 | var_54_arg_1; [L148] SORT_1 var_55_arg_0 = state_21; [L149] SORT_1 var_55_arg_1 = var_54; [L150] SORT_1 var_55_arg_2 = state_19; [L151] SORT_1 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L152] SORT_1 next_56_arg_1 = var_55; [L153] SORT_1 var_57_arg_0 = state_15; [L154] SORT_1 var_57 = ~var_57_arg_0; [L155] SORT_1 var_58_arg_0 = state_13; [L156] SORT_1 var_58_arg_1 = var_57; [L157] SORT_1 var_58 = var_58_arg_0 & var_58_arg_1; [L158] SORT_1 var_59_arg_0 = state_17; [L159] SORT_1 var_59 = ~var_59_arg_0; [L160] SORT_1 var_60_arg_0 = var_58; [L161] SORT_1 var_60_arg_1 = var_59; [L162] SORT_1 var_60 = var_60_arg_0 & var_60_arg_1; [L163] SORT_1 var_61_arg_0 = state_4; [L164] SORT_1 var_61 = ~var_61_arg_0; [L165] SORT_1 var_62_arg_0 = var_60; [L166] SORT_1 var_62_arg_1 = var_61; [L167] SORT_1 var_62 = var_62_arg_0 & var_62_arg_1; [L168] SORT_1 var_63_arg_0 = state_19; [L169] SORT_1 var_63 = ~var_63_arg_0; [L170] SORT_1 var_64_arg_0 = var_62; [L171] SORT_1 var_64_arg_1 = var_63; [L172] SORT_1 var_64 = var_64_arg_0 & var_64_arg_1; [L173] SORT_1 var_65_arg_0 = state_13; [L174] SORT_1 var_65 = ~var_65_arg_0; [L175] SORT_1 var_66_arg_0 = var_65; [L176] SORT_1 var_66_arg_1 = state_15; [L177] SORT_1 var_66 = var_66_arg_0 & var_66_arg_1; [L178] SORT_1 var_67_arg_0 = state_17; [L179] SORT_1 var_67 = ~var_67_arg_0; [L180] SORT_1 var_68_arg_0 = var_66; [L181] SORT_1 var_68_arg_1 = var_67; [L182] SORT_1 var_68 = var_68_arg_0 & var_68_arg_1; [L183] SORT_1 var_69_arg_0 = state_4; [L184] SORT_1 var_69 = ~var_69_arg_0; [L185] SORT_1 var_70_arg_0 = var_68; [L186] SORT_1 var_70_arg_1 = var_69; [L187] SORT_1 var_70 = var_70_arg_0 & var_70_arg_1; [L188] SORT_1 var_71_arg_0 = state_19; [L189] SORT_1 var_71 = ~var_71_arg_0; [L190] SORT_1 var_72_arg_0 = var_70; [L191] SORT_1 var_72_arg_1 = var_71; [L192] SORT_1 var_72 = var_72_arg_0 & var_72_arg_1; [L193] SORT_1 var_73_arg_0 = var_64; [L194] SORT_1 var_73_arg_1 = var_72; [L195] SORT_1 var_73 = var_73_arg_0 | var_73_arg_1; [L196] SORT_1 var_74_arg_0 = state_13; [L197] SORT_1 var_74 = ~var_74_arg_0; [L198] SORT_1 var_75_arg_0 = state_15; [L199] SORT_1 var_75 = ~var_75_arg_0; [L200] SORT_1 var_76_arg_0 = var_74; [L201] SORT_1 var_76_arg_1 = var_75; [L202] SORT_1 var_76 = var_76_arg_0 & var_76_arg_1; [L203] SORT_1 var_77_arg_0 = var_76; [L204] SORT_1 var_77_arg_1 = state_17; [L205] SORT_1 var_77 = var_77_arg_0 & var_77_arg_1; [L206] SORT_1 var_78_arg_0 = state_4; [L207] SORT_1 var_78 = ~var_78_arg_0; [L208] SORT_1 var_79_arg_0 = var_77; [L209] SORT_1 var_79_arg_1 = var_78; [L210] SORT_1 var_79 = var_79_arg_0 & var_79_arg_1; [L211] SORT_1 var_80_arg_0 = state_19; [L212] SORT_1 var_80 = ~var_80_arg_0; [L213] SORT_1 var_81_arg_0 = var_79; [L214] SORT_1 var_81_arg_1 = var_80; [L215] SORT_1 var_81 = var_81_arg_0 & var_81_arg_1; [L216] SORT_1 var_82_arg_0 = var_73; [L217] SORT_1 var_82_arg_1 = var_81; [L218] SORT_1 var_82 = var_82_arg_0 | var_82_arg_1; [L219] SORT_1 var_83_arg_0 = state_13; [L220] SORT_1 var_83 = ~var_83_arg_0; [L221] SORT_1 var_84_arg_0 = state_15; [L222] SORT_1 var_84 = ~var_84_arg_0; [L223] SORT_1 var_85_arg_0 = var_83; [L224] SORT_1 var_85_arg_1 = var_84; [L225] SORT_1 var_85 = var_85_arg_0 & var_85_arg_1; [L226] SORT_1 var_86_arg_0 = state_17; [L227] SORT_1 var_86 = ~var_86_arg_0; [L228] SORT_1 var_87_arg_0 = var_85; [L229] SORT_1 var_87_arg_1 = var_86; [L230] SORT_1 var_87 = var_87_arg_0 & var_87_arg_1; [L231] SORT_1 var_88_arg_0 = var_87; [L232] SORT_1 var_88_arg_1 = state_4; [L233] SORT_1 var_88 = var_88_arg_0 & var_88_arg_1; [L234] SORT_1 var_89_arg_0 = state_19; [L235] SORT_1 var_89 = ~var_89_arg_0; [L236] SORT_1 var_90_arg_0 = var_88; [L237] SORT_1 var_90_arg_1 = var_89; [L238] SORT_1 var_90 = var_90_arg_0 & var_90_arg_1; [L239] SORT_1 var_91_arg_0 = var_82; [L240] SORT_1 var_91_arg_1 = var_90; [L241] SORT_1 var_91 = var_91_arg_0 | var_91_arg_1; [L242] SORT_1 var_92_arg_0 = state_13; [L243] SORT_1 var_92 = ~var_92_arg_0; [L244] SORT_1 var_93_arg_0 = state_15; [L245] SORT_1 var_93 = ~var_93_arg_0; [L246] SORT_1 var_94_arg_0 = var_92; [L247] SORT_1 var_94_arg_1 = var_93; [L248] SORT_1 var_94 = var_94_arg_0 & var_94_arg_1; [L249] SORT_1 var_95_arg_0 = state_17; [L250] SORT_1 var_95 = ~var_95_arg_0; [L251] SORT_1 var_96_arg_0 = var_94; [L252] SORT_1 var_96_arg_1 = var_95; [L253] SORT_1 var_96 = var_96_arg_0 & var_96_arg_1; [L254] SORT_1 var_97_arg_0 = state_4; [L255] SORT_1 var_97 = ~var_97_arg_0; [L256] SORT_1 var_98_arg_0 = var_96; [L257] SORT_1 var_98_arg_1 = var_97; [L258] SORT_1 var_98 = var_98_arg_0 & var_98_arg_1; [L259] SORT_1 var_99_arg_0 = var_98; [L260] SORT_1 var_99_arg_1 = state_19; [L261] SORT_1 var_99 = var_99_arg_0 & var_99_arg_1; [L262] SORT_1 var_100_arg_0 = var_91; [L263] SORT_1 var_100_arg_1 = var_99; [L264] SORT_1 var_100 = var_100_arg_0 | var_100_arg_1; [L265] var_100 = var_100 & mask_SORT_1 [L266] SORT_1 next_101_arg_1 = var_100; [L267] SORT_23 next_102_arg_1 = state_24; [L268] SORT_23 next_103_arg_1 = state_25; [L269] SORT_23 next_104_arg_1 = state_26; [L271] state_4 = next_33_arg_1 [L272] state_13 = next_35_arg_1 [L273] state_15 = next_39_arg_1 [L274] state_17 = next_43_arg_1 [L275] state_19 = next_56_arg_1 [L276] state_21 = next_101_arg_1 [L277] state_24 = next_102_arg_1 [L278] state_25 = next_103_arg_1 [L279] state_26 = next_104_arg_1 [L60] input_2 = __VERIFIER_nondet_uchar() [L63] SORT_1 var_6_arg_0 = state_4; [L64] SORT_1 var_6 = ~var_6_arg_0; [L65] SORT_1 var_10_arg_0 = var_6; [L66] SORT_1 var_10 = ~var_10_arg_0; [L67] SORT_1 var_11_arg_0 = var_9; [L68] SORT_1 var_11_arg_1 = var_10; [L69] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L70] var_11 = var_11 & mask_SORT_1 [L71] SORT_1 bad_12_arg_0 = var_11; [L72] CALL __VERIFIER_assert(!(bad_12_arg_0)) [L20] COND TRUE !(cond) [L20] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 496.9s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 211.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 39.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 27.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 17 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 112 SyntacticMatches, 12 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 411.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=4, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 280.6s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 184 ConstructedInterpolants, 103 QuantifiedInterpolants, 17451 SizeOfPredicates, 842 NumberOfNonLiveVariables, 5375 ConjunctsInSsa, 1091 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 0/144 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 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN