./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW --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 fc22d6d4209dd91d6792979ea560d5b9cdade906028821eba254f4102038ea1f --- 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-4e7fbc6 [2022-11-23 15:31:21,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:31:21,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:31:21,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:31:21,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:31:21,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:31:21,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:31:21,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:31:21,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:31:21,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:31:21,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:31:21,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:31:21,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:31:21,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:31:21,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:31:21,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:31:21,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:31:21,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:31:21,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:31:21,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:31:21,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:31:21,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:31:21,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:31:21,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:31:21,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:31:21,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:31:21,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:31:21,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:31:21,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:31:21,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:31:21,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:31:21,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:31:21,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:31:21,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:31:21,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:31:21,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:31:21,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:31:21,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:31:21,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:31:21,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:31:21,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:31:21,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:31:21,713 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:31:21,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:31:21,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:31:21,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:31:21,715 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:31:21,715 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:31:21,716 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:31:21,716 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:31:21,716 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:31:21,716 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:31:21,717 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:31:21,718 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:31:21,718 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:31:21,718 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:31:21,718 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:31:21,718 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:31:21,719 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:31:21,719 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:31:21,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:31:21,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:31:21,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:31:21,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:31:21,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:31:21,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:31:21,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:31:21,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:31:21,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:31:21,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:31:21,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:31:21,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:31:21,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:31:21,723 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:31:21,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:31:21,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:31:21,724 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:31:21,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:31:21,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:31:21,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:31:21,725 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_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc22d6d4209dd91d6792979ea560d5b9cdade906028821eba254f4102038ea1f [2022-11-23 15:31:22,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:31:22,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:31:22,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:31:22,053 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:31:22,054 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:31:22,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-23 15:31:25,190 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:31:25,570 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:31:25,571 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-23 15:31:25,589 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/data/2f8b969c1/a061e654041c496c8761c959df6d8853/FLAGf88b49a3e [2022-11-23 15:31:25,607 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/data/2f8b969c1/a061e654041c496c8761c959df6d8853 [2022-11-23 15:31:25,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:31:25,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:31:25,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:31:25,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:31:25,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:31:25,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:25" (1/1) ... [2022-11-23 15:31:25,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6cb9d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:25, skipping insertion in model container [2022-11-23 15:31:25,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:25" (1/1) ... [2022-11-23 15:31:25,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:31:25,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:31:25,903 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_c802e9d1-ff89-4765-93f1-50fcab3b4813/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1107,1120] [2022-11-23 15:31:26,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:31:26,310 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:31:26,317 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_c802e9d1-ff89-4765-93f1-50fcab3b4813/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1107,1120] [2022-11-23 15:31:26,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:31:26,517 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:31:26,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26 WrapperNode [2022-11-23 15:31:26,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:31:26,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:31:26,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:31:26,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:31:26,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,698 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1779 [2022-11-23 15:31:26,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:31:26,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:31:26,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:31:26,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:31:26,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:31:26,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:31:26,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:31:26,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:31:26,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (1/1) ... [2022-11-23 15:31:26,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:31:26,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:31:26,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:31:26,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:31:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:31:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:31:27,474 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:31:27,476 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:33:47,427 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:33:47,489 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:33:47,489 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:33:47,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:47 BoogieIcfgContainer [2022-11-23 15:33:47,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:33:47,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:33:47,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:33:47,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:33:47,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:31:25" (1/3) ... [2022-11-23 15:33:47,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5225307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:33:47, skipping insertion in model container [2022-11-23 15:33:47,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:26" (2/3) ... [2022-11-23 15:33:47,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5225307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:33:47, skipping insertion in model container [2022-11-23 15:33:47,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:47" (3/3) ... [2022-11-23 15:33:47,521 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-23 15:33:47,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:33:47,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:33:47,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:33:47,620 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;@625725ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:33:47,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:33:47,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:33:47,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:33:47,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:33:47,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:33:47,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:33:47,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:33:47,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-23 15:33:47,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:33:47,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692054477] [2022-11-23 15:33:47,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:33:47,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:33:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:33:48,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:33:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:33:48,203 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:33:48,205 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:33:48,206 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:33:48,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:33:48,213 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:33:48,218 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:33:48,250 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 15:33:48,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:33:48 BoogieIcfgContainer [2022-11-23 15:33:48,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:33:48,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:33:48,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:33:48,270 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:33:48,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:47" (3/4) ... [2022-11-23 15:33:48,275 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:33:48,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:33:48,278 INFO L158 Benchmark]: Toolchain (without parser) took 142663.47ms. Allocated memory was 136.3MB in the beginning and 799.0MB in the end (delta: 662.7MB). Free memory was 102.4MB in the beginning and 652.8MB in the end (delta: -550.4MB). Peak memory consumption was 109.6MB. Max. memory is 16.1GB. [2022-11-23 15:33:48,278 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:33:48,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 899.81ms. Allocated memory is still 136.3MB. Free memory was 102.4MB in the beginning and 90.9MB in the end (delta: 11.5MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2022-11-23 15:33:48,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 179.30ms. Allocated memory is still 136.3MB. Free memory was 90.9MB in the beginning and 78.6MB in the end (delta: 12.3MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-11-23 15:33:48,282 INFO L158 Benchmark]: Boogie Preprocessor took 172.65ms. Allocated memory is still 136.3MB. Free memory was 78.6MB in the beginning and 69.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 15:33:48,289 INFO L158 Benchmark]: RCFGBuilder took 140633.93ms. Allocated memory was 136.3MB in the beginning and 799.0MB in the end (delta: 662.7MB). Free memory was 69.2MB in the beginning and 695.8MB in the end (delta: -626.6MB). Peak memory consumption was 470.5MB. Max. memory is 16.1GB. [2022-11-23 15:33:48,291 INFO L158 Benchmark]: TraceAbstraction took 758.24ms. Allocated memory is still 799.0MB. Free memory was 694.8MB in the beginning and 653.9MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-23 15:33:48,292 INFO L158 Benchmark]: Witness Printer took 7.05ms. Allocated memory is still 799.0MB. Free memory was 653.9MB in the beginning and 652.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:33:48,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 899.81ms. Allocated memory is still 136.3MB. Free memory was 102.4MB in the beginning and 90.9MB in the end (delta: 11.5MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 179.30ms. Allocated memory is still 136.3MB. Free memory was 90.9MB in the beginning and 78.6MB in the end (delta: 12.3MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 172.65ms. Allocated memory is still 136.3MB. Free memory was 78.6MB in the beginning and 69.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 140633.93ms. Allocated memory was 136.3MB in the beginning and 799.0MB in the end (delta: 662.7MB). Free memory was 69.2MB in the beginning and 695.8MB in the end (delta: -626.6MB). Peak memory consumption was 470.5MB. Max. memory is 16.1GB. * TraceAbstraction took 758.24ms. Allocated memory is still 799.0MB. Free memory was 694.8MB in the beginning and 653.9MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 7.05ms. Allocated memory is still 799.0MB. Free memory was 653.9MB in the beginning and 652.8MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 197, overapproximation of bitwiseAnd at line 192. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L31] const SORT_38 mask_SORT_38 = (SORT_38)-1 >> (sizeof(SORT_38) * 8 - 12); [L32] const SORT_38 msb_SORT_38 = (SORT_38)1 << (12 - 1); [L34] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 3); [L35] const SORT_44 msb_SORT_44 = (SORT_44)1 << (3 - 1); [L37] const SORT_71 mask_SORT_71 = (SORT_71)-1 >> (sizeof(SORT_71) * 8 - 2); [L38] const SORT_71 msb_SORT_71 = (SORT_71)1 << (2 - 1); [L40] const SORT_230 mask_SORT_230 = (SORT_230)-1 >> (sizeof(SORT_230) * 8 - 4); [L41] const SORT_230 msb_SORT_230 = (SORT_230)1 << (4 - 1); [L43] const SORT_232 mask_SORT_232 = (SORT_232)-1 >> (sizeof(SORT_232) * 8 - 5); [L44] const SORT_232 msb_SORT_232 = (SORT_232)1 << (5 - 1); [L46] const SORT_234 mask_SORT_234 = (SORT_234)-1 >> (sizeof(SORT_234) * 8 - 6); [L47] const SORT_234 msb_SORT_234 = (SORT_234)1 << (6 - 1); [L49] const SORT_236 mask_SORT_236 = (SORT_236)-1 >> (sizeof(SORT_236) * 8 - 7); [L50] const SORT_236 msb_SORT_236 = (SORT_236)1 << (7 - 1); [L52] const SORT_238 mask_SORT_238 = (SORT_238)-1 >> (sizeof(SORT_238) * 8 - 8); [L53] const SORT_238 msb_SORT_238 = (SORT_238)1 << (8 - 1); [L55] const SORT_240 mask_SORT_240 = (SORT_240)-1 >> (sizeof(SORT_240) * 8 - 9); [L56] const SORT_240 msb_SORT_240 = (SORT_240)1 << (9 - 1); [L58] const SORT_242 mask_SORT_242 = (SORT_242)-1 >> (sizeof(SORT_242) * 8 - 10); [L59] const SORT_242 msb_SORT_242 = (SORT_242)1 << (10 - 1); [L61] const SORT_244 mask_SORT_244 = (SORT_244)-1 >> (sizeof(SORT_244) * 8 - 11); [L62] const SORT_244 msb_SORT_244 = (SORT_244)1 << (11 - 1); [L64] const SORT_247 mask_SORT_247 = (SORT_247)-1 >> (sizeof(SORT_247) * 8 - 13); [L65] const SORT_247 msb_SORT_247 = (SORT_247)1 << (13 - 1); [L67] const SORT_249 mask_SORT_249 = (SORT_249)-1 >> (sizeof(SORT_249) * 8 - 14); [L68] const SORT_249 msb_SORT_249 = (SORT_249)1 << (14 - 1); [L70] const SORT_251 mask_SORT_251 = (SORT_251)-1 >> (sizeof(SORT_251) * 8 - 15); [L71] const SORT_251 msb_SORT_251 = (SORT_251)1 << (15 - 1); [L73] const SORT_460 mask_SORT_460 = (SORT_460)-1 >> (sizeof(SORT_460) * 8 - 17); [L74] const SORT_460 msb_SORT_460 = (SORT_460)1 << (17 - 1); [L76] const SORT_3 var_6 = 0; [L77] const SORT_1 var_11 = 0; [L78] const SORT_1 var_22 = 1; [L79] const SORT_38 var_39 = 0; [L80] const SORT_44 var_45 = 0; [L81] const SORT_44 var_49 = 2; [L82] const SORT_44 var_53 = 1; [L83] const SORT_44 var_58 = 4; [L84] const SORT_44 var_60 = 5; [L85] const SORT_44 var_64 = 3; [L86] const SORT_71 var_73 = 0; [L87] const SORT_3 var_80 = 65535; [L88] const SORT_232 var_461 = 0; [L89] const SORT_236 var_507 = 5; [L90] const SORT_236 var_511 = 4; [L91] const SORT_236 var_515 = 3; [L92] const SORT_236 var_519 = 2; [L93] const SORT_236 var_523 = 1; [L94] const SORT_236 var_527 = 0; [L95] const SORT_38 var_561 = 2; [L97] SORT_1 input_2; [L98] SORT_3 input_4; [L99] SORT_3 input_5; [L100] SORT_3 input_68; [L101] SORT_3 input_69; [L102] SORT_3 input_70; [L103] SORT_3 input_79; [L104] SORT_3 input_88; [L105] SORT_3 input_89; [L106] SORT_3 input_90; [L107] SORT_3 input_93; [L108] SORT_3 input_111; [L109] SORT_3 input_112; [L110] SORT_3 input_113; [L111] SORT_3 input_116; [L112] SORT_3 input_118; [L113] SORT_71 input_132; [L114] SORT_71 input_133; [L115] SORT_71 input_134; [L117] SORT_3 state_7 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L118] SORT_3 state_9 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L119] SORT_3 state_13 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L120] SORT_3 state_15 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L121] SORT_3 state_26 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L122] SORT_3 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L123] SORT_3 state_30 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L124] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_3 state_34 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L126] SORT_3 state_36 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L127] SORT_38 state_40 = __VERIFIER_nondet_ushort() & mask_SORT_38; [L128] SORT_38 state_42 = __VERIFIER_nondet_ushort() & mask_SORT_38; [L129] SORT_44 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_44; [L131] SORT_3 init_8_arg_1 = var_6; [L132] state_7 = init_8_arg_1 [L133] SORT_3 init_10_arg_1 = var_6; [L134] state_9 = init_10_arg_1 [L135] SORT_3 init_14_arg_1 = var_6; [L136] state_13 = init_14_arg_1 [L137] SORT_3 init_16_arg_1 = var_6; [L138] state_15 = init_16_arg_1 [L139] SORT_3 init_27_arg_1 = var_6; [L140] state_26 = init_27_arg_1 [L141] SORT_3 init_29_arg_1 = var_6; [L142] state_28 = init_29_arg_1 [L143] SORT_3 init_31_arg_1 = var_6; [L144] state_30 = init_31_arg_1 [L145] SORT_1 init_33_arg_1 = var_11; [L146] state_32 = init_33_arg_1 [L147] SORT_3 init_35_arg_1 = var_6; [L148] state_34 = init_35_arg_1 [L149] SORT_3 init_37_arg_1 = var_6; [L150] state_36 = init_37_arg_1 [L151] SORT_38 init_41_arg_1 = var_39; [L152] state_40 = init_41_arg_1 [L153] SORT_38 init_43_arg_1 = var_39; [L154] state_42 = init_43_arg_1 [L155] SORT_44 init_47_arg_1 = var_45; [L156] state_46 = init_47_arg_1 VAL [init_10_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_47_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_230=15, mask_SORT_232=31, mask_SORT_234=63, mask_SORT_236=127, mask_SORT_238=255, mask_SORT_240=511, mask_SORT_242=1023, mask_SORT_244=2047, mask_SORT_247=8191, mask_SORT_249=16383, mask_SORT_251=32767, mask_SORT_3=65535, mask_SORT_38=4095, mask_SORT_44=7, mask_SORT_460=4294967295, mask_SORT_71=3, msb_SORT_1=1, msb_SORT_230=8, msb_SORT_232=16, msb_SORT_234=32, msb_SORT_236=64, msb_SORT_238=128, msb_SORT_240=256, msb_SORT_242=512, msb_SORT_244=1024, msb_SORT_247=4096, msb_SORT_249=8192, msb_SORT_251=16384, msb_SORT_3=32768, msb_SORT_38=2048, msb_SORT_44=4, msb_SORT_460=65536, msb_SORT_71=2, state_13=0, state_15=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_40=0, state_42=0, state_46=0, state_7=0, state_9=0, var_11=0, var_22=1, var_39=0, var_45=0, var_461=0, var_49=2, var_507=5, var_511=4, var_515=3, var_519=2, var_523=1, var_527=0, var_53=1, var_561=2, var_58=4, var_6=0, var_60=5, var_64=3, var_73=0, var_80=65535] [L159] input_2 = __VERIFIER_nondet_uchar() [L160] input_4 = __VERIFIER_nondet_ushort() [L161] input_5 = __VERIFIER_nondet_ushort() [L162] input_68 = __VERIFIER_nondet_ushort() [L163] input_69 = __VERIFIER_nondet_ushort() [L164] input_70 = __VERIFIER_nondet_ushort() [L165] input_79 = __VERIFIER_nondet_ushort() [L166] input_88 = __VERIFIER_nondet_ushort() [L167] input_89 = __VERIFIER_nondet_ushort() [L168] input_90 = __VERIFIER_nondet_ushort() [L169] input_93 = __VERIFIER_nondet_ushort() [L170] input_111 = __VERIFIER_nondet_ushort() [L171] input_112 = __VERIFIER_nondet_ushort() [L172] input_113 = __VERIFIER_nondet_ushort() [L173] input_116 = __VERIFIER_nondet_ushort() [L174] input_118 = __VERIFIER_nondet_ushort() [L175] input_132 = __VERIFIER_nondet_uchar() [L176] input_133 = __VERIFIER_nondet_uchar() [L177] input_134 = __VERIFIER_nondet_uchar() [L180] SORT_1 var_17_arg_0 = var_11; [L181] SORT_3 var_17_arg_1 = state_15; [L182] SORT_3 var_17_arg_2 = state_13; [L183] SORT_3 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L184] SORT_1 var_12_arg_0 = var_11; [L185] SORT_3 var_12_arg_1 = state_9; [L186] SORT_3 var_12_arg_2 = state_7; [L187] SORT_3 var_12 = var_12_arg_0 ? var_12_arg_1 : var_12_arg_2; [L188] SORT_1 var_18_arg_0 = var_11; [L189] SORT_3 var_18_arg_1 = var_17; [L190] SORT_3 var_18_arg_2 = var_12; [L191] SORT_3 var_18 = var_18_arg_0 ? var_18_arg_1 : var_18_arg_2; [L192] var_18 = var_18 & mask_SORT_3 [L193] SORT_3 var_19_arg_0 = var_18; [L194] SORT_3 var_19_arg_1 = var_6; [L195] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L196] SORT_1 var_23_arg_0 = var_19; [L197] SORT_1 var_23 = ~var_23_arg_0; [L198] SORT_1 var_24_arg_0 = var_22; [L199] SORT_1 var_24_arg_1 = var_23; [L200] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L201] var_24 = var_24 & mask_SORT_1 [L202] SORT_1 bad_25_arg_0 = var_24; [L203] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:33:48,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW --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 fc22d6d4209dd91d6792979ea560d5b9cdade906028821eba254f4102038ea1f --- 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-4e7fbc6 [2022-11-23 15:33:50,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:33:50,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:33:50,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:33:50,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:33:50,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:33:50,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:33:50,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:33:50,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:33:50,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:33:50,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:33:50,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:33:50,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:33:50,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:33:50,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:33:50,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:33:50,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:33:50,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:33:50,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:33:50,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:33:50,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:33:50,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:33:50,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:33:50,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:33:50,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:33:50,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:33:50,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:33:50,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:33:50,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:33:50,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:33:50,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:33:50,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:33:50,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:33:50,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:33:50,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:33:50,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:33:50,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:33:50,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:33:50,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:33:51,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:33:51,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:33:51,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 15:33:51,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:33:51,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:33:51,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:33:51,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:33:51,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:33:51,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:33:51,061 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:33:51,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:33:51,061 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:33:51,061 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:33:51,062 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:33:51,063 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:33:51,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:33:51,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:33:51,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:33:51,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:33:51,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:33:51,065 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:33:51,065 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:33:51,065 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:33:51,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:33:51,065 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:33:51,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:33:51,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:33:51,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:33:51,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:33:51,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:33:51,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:33:51,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:33:51,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:33:51,067 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:33:51,068 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:33:51,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:33:51,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:33:51,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:33:51,068 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_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc22d6d4209dd91d6792979ea560d5b9cdade906028821eba254f4102038ea1f [2022-11-23 15:33:51,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:33:51,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:33:51,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:33:51,482 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:33:51,482 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:33:51,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-23 15:33:54,748 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:33:55,181 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:33:55,191 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-23 15:33:55,206 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/data/a37cbfa92/e635237441be4468b0f94614ba4d2ec5/FLAG3a64b81b1 [2022-11-23 15:33:55,219 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/data/a37cbfa92/e635237441be4468b0f94614ba4d2ec5 [2022-11-23 15:33:55,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:33:55,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:33:55,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:33:55,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:33:55,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:33:55,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:33:55" (1/1) ... [2022-11-23 15:33:55,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c23d945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:55, skipping insertion in model container [2022-11-23 15:33:55,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:33:55" (1/1) ... [2022-11-23 15:33:55,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:33:55,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:33:55,603 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_c802e9d1-ff89-4765-93f1-50fcab3b4813/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1107,1120] [2022-11-23 15:33:56,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:33:56,008 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:33:56,018 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_c802e9d1-ff89-4765-93f1-50fcab3b4813/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1107,1120] [2022-11-23 15:33:56,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:33:56,225 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:33:56,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56 WrapperNode [2022-11-23 15:33:56,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:33:56,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:33:56,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:33:56,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:33:56,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,411 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1779 [2022-11-23 15:33:56,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:33:56,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:33:56,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:33:56,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:33:56,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,554 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:33:56,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:33:56,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:33:56,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:33:56,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (1/1) ... [2022-11-23 15:33:56,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:33:56,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:33:56,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:33:56,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:33:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:33:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:33:57,284 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:33:57,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:34:00,319 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:34:00,327 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:34:00,327 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:34:00,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:00 BoogieIcfgContainer [2022-11-23 15:34:00,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:34:00,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:34:00,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:34:00,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:34:00,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:33:55" (1/3) ... [2022-11-23 15:34:00,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a382f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:00, skipping insertion in model container [2022-11-23 15:34:00,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:56" (2/3) ... [2022-11-23 15:34:00,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a382f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:00, skipping insertion in model container [2022-11-23 15:34:00,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:00" (3/3) ... [2022-11-23 15:34:00,339 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-23 15:34:00,375 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:34:00,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:34:00,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:34:00,450 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;@7a38c316, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:34:00,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:34:00,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:34:00,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:34:00,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:34:00,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:34:00,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:34:00,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:34:00,473 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 15:34:00,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:34:00,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330505148] [2022-11-23 15:34:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:34:00,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:34:00,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:34:00,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:34:00,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:34:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:34:00,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 15:34:00,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:34:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:34:01,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:34:01,159 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:34:01,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330505148] [2022-11-23 15:34:01,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330505148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:34:01,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:34:01,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:34:01,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720502956] [2022-11-23 15:34:01,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:34:01,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:34:01,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:34:01,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:34:01,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:34:01,198 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:34:01,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:34:01,600 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 15:34:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:34:01,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 15:34:01,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:34:01,612 INFO L225 Difference]: With dead ends: 20 [2022-11-23 15:34:01,613 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 15:34:01,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:34:01,622 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:34:01,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:34:01,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 15:34:01,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 15:34:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:34:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 15:34:01,668 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 15:34:01,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:34:01,668 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 15:34:01,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:34:01,669 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 15:34:01,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:34:01,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:34:01,670 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 15:34:01,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/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)] Ended with exit code 0 [2022-11-23 15:34:01,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:34:01,882 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:34:01,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:34:01,883 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 15:34:01,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:34:01,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322604760] [2022-11-23 15:34:01,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:34:01,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:34:01,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:34:01,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:34:01,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c802e9d1-ff89-4765-93f1-50fcab3b4813/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:34:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:34:02,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 256 conjunts are in the unsatisfiable core [2022-11-23 15:34:02,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:34:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:34:08,139 INFO L328 TraceCheckSpWp]: Computing backward predicates...