./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur --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 57114188bd56a0070acfa3b1f6841bb6a55b2a9596408ce4fb03f42ffef00ea1 --- 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-38b53e6 [2022-11-25 22:20:51,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:20:51,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:20:51,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:20:51,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:20:51,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:20:51,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:20:51,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:20:51,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:20:51,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:20:51,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:20:51,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:20:51,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:20:51,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:20:51,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:20:51,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:20:51,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:20:51,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:20:51,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:20:51,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:20:51,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:20:51,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:20:51,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:20:51,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:20:51,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:20:51,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:20:51,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:20:51,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:20:51,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:20:51,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:20:51,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:20:51,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:20:51,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:20:51,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:20:51,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:20:51,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:20:51,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:20:51,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:20:51,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:20:51,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:20:51,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:20:51,580 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:20:51,602 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:20:51,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:20:51,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:20:51,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:20:51,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:20:51,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:20:51,604 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:20:51,604 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:20:51,605 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:20:51,605 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:20:51,605 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:20:51,605 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:20:51,605 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:20:51,605 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:20:51,606 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:20:51,606 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:20:51,606 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:20:51,606 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:20:51,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:20:51,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:20:51,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:20:51,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:20:51,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:20:51,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:20:51,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:20:51,608 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:20:51,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:20:51,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:20:51,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:20:51,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:20:51,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:20:51,609 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:20:51,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:20:51,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:20:51,610 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:20:51,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:20:51,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:20:51,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:20:51,610 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_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57114188bd56a0070acfa3b1f6841bb6a55b2a9596408ce4fb03f42ffef00ea1 [2022-11-25 22:20:51,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:20:51,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:20:51,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:20:51,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:20:51,989 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:20:51,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c [2022-11-25 22:20:55,056 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:20:55,339 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:20:55,340 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c [2022-11-25 22:20:55,396 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/data/98953fa4e/26eb351030d0470caee5e4e314ef7be4/FLAGa084cff08 [2022-11-25 22:20:55,422 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/data/98953fa4e/26eb351030d0470caee5e4e314ef7be4 [2022-11-25 22:20:55,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:20:55,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:20:55,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:20:55,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:20:55,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:20:55,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:20:55" (1/1) ... [2022-11-25 22:20:55,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1422dece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:55, skipping insertion in model container [2022-11-25 22:20:55,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:20:55" (1/1) ... [2022-11-25 22:20:55,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:20:55,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:20:55,670 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_52de2dde-03c4-474a-9c77-43fd818c6802/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c[1107,1120] [2022-11-25 22:20:55,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:20:55,883 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:20:55,896 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_52de2dde-03c4-474a-9c77-43fd818c6802/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c[1107,1120] [2022-11-25 22:20:56,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:20:56,060 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:20:56,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56 WrapperNode [2022-11-25 22:20:56,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:20:56,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:20:56,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:20:56,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:20:56,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,152 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 687 [2022-11-25 22:20:56,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:20:56,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:20:56,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:20:56,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:20:56,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,205 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:20:56,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:20:56,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:20:56,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:20:56,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (1/1) ... [2022-11-25 22:20:56,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:20:56,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:20:56,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:20:56,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:20:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:20:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:20:56,601 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:20:56,604 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:21:03,175 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:21:03,219 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:21:03,219 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:21:03,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:21:03 BoogieIcfgContainer [2022-11-25 22:21:03,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:21:03,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:21:03,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:21:03,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:21:03,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:20:55" (1/3) ... [2022-11-25 22:21:03,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ee11f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:21:03, skipping insertion in model container [2022-11-25 22:21:03,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:56" (2/3) ... [2022-11-25 22:21:03,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ee11f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:21:03, skipping insertion in model container [2022-11-25 22:21:03,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:21:03" (3/3) ... [2022-11-25 22:21:03,235 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mul11.c [2022-11-25 22:21:03,254 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:21:03,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:21:03,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:21:03,324 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;@417a23ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:21:03,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:21:03,330 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) [2022-11-25 22:21:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:21:03,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:03,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:21:03,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:21:03,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:03,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-25 22:21:03,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:21:03,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892415882] [2022-11-25 22:21:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:03,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:21:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:21:03,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:21:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:21:03,939 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:21:03,941 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:21:03,942 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:21:03,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:21:03,957 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:21:03,961 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:21:04,006 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 22:21:04,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:21:04 BoogieIcfgContainer [2022-11-25 22:21:04,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:21:04,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:21:04,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:21:04,017 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:21:04,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:21:03" (3/4) ... [2022-11-25 22:21:04,020 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:21:04,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:21:04,022 INFO L158 Benchmark]: Toolchain (without parser) took 8589.74ms. Allocated memory was 178.3MB in the beginning and 373.3MB in the end (delta: 195.0MB). Free memory was 149.9MB in the beginning and 149.4MB in the end (delta: 519.5kB). Peak memory consumption was 196.5MB. Max. memory is 16.1GB. [2022-11-25 22:21:04,022 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:21:04,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.02ms. Allocated memory is still 178.3MB. Free memory was 149.9MB in the beginning and 123.9MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-25 22:21:04,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.37ms. Allocated memory is still 178.3MB. Free memory was 123.9MB in the beginning and 116.3MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 22:21:04,024 INFO L158 Benchmark]: Boogie Preprocessor took 64.86ms. Allocated memory is still 178.3MB. Free memory was 116.3MB in the beginning and 112.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:21:04,025 INFO L158 Benchmark]: RCFGBuilder took 7004.05ms. Allocated memory was 178.3MB in the beginning and 373.3MB in the end (delta: 195.0MB). Free memory was 112.1MB in the beginning and 193.4MB in the end (delta: -81.4MB). Peak memory consumption was 163.8MB. Max. memory is 16.1GB. [2022-11-25 22:21:04,025 INFO L158 Benchmark]: TraceAbstraction took 790.46ms. Allocated memory is still 373.3MB. Free memory was 192.4MB in the beginning and 149.4MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-25 22:21:04,026 INFO L158 Benchmark]: Witness Printer took 4.30ms. Allocated memory is still 373.3MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:21:04,029 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.02ms. Allocated memory is still 178.3MB. Free memory was 149.9MB in the beginning and 123.9MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.37ms. Allocated memory is still 178.3MB. Free memory was 123.9MB in the beginning and 116.3MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.86ms. Allocated memory is still 178.3MB. Free memory was 116.3MB in the beginning and 112.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 7004.05ms. Allocated memory was 178.3MB in the beginning and 373.3MB in the end (delta: 195.0MB). Free memory was 112.1MB in the beginning and 193.4MB in the end (delta: -81.4MB). Peak memory consumption was 163.8MB. Max. memory is 16.1GB. * TraceAbstraction took 790.46ms. Allocated memory is still 373.3MB. Free memory was 192.4MB in the beginning and 149.4MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 4.30ms. Allocated memory is still 373.3MB. Free memory is still 149.4MB. 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 208, overapproximation of bitwiseAnd at line 149. 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 - 32); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (32 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 64); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (64 - 1); [L34] const SORT_215 mask_SORT_215 = (SORT_215)-1 >> (sizeof(SORT_215) * 8 - 4); [L35] const SORT_215 msb_SORT_215 = (SORT_215)1 << (4 - 1); [L37] const SORT_217 mask_SORT_217 = (SORT_217)-1 >> (sizeof(SORT_217) * 8 - 60); [L38] const SORT_217 msb_SORT_217 = (SORT_217)1 << (60 - 1); [L40] const SORT_10 var_11 = 0; [L41] const SORT_1 var_14 = 0; [L42] const SORT_3 var_24 = 0; [L43] const SORT_1 var_51 = 1; [L44] const SORT_3 var_204 = 1; [L45] const SORT_3 var_208 = 3735928559; [L46] const SORT_3 var_211 = 12245771; [L47] const SORT_215 var_216 = 0; [L49] SORT_1 input_2; [L50] SORT_3 input_4; [L51] SORT_3 input_5; [L52] SORT_1 input_6; [L53] SORT_1 input_7; [L54] SORT_1 input_8; [L55] SORT_1 input_9; [L57] SORT_10 state_12 = __VERIFIER_nondet_ulong() & mask_SORT_10; [L58] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L59] SORT_10 state_18 = __VERIFIER_nondet_ulong() & mask_SORT_10; [L60] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L61] SORT_3 state_25 = __VERIFIER_nondet_uint() & mask_SORT_3; [L62] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] SORT_3 state_30 = __VERIFIER_nondet_uint() & mask_SORT_3; [L64] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L65] SORT_3 state_37 = __VERIFIER_nondet_uint() & mask_SORT_3; [L66] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L67] SORT_3 state_42 = __VERIFIER_nondet_uint() & mask_SORT_3; [L68] SORT_1 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L69] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_220 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_251 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_264 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_269 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_10 init_13_arg_1 = var_11; [L88] state_12 = init_13_arg_1 [L89] SORT_1 init_16_arg_1 = var_14; [L90] state_15 = init_16_arg_1 [L91] SORT_10 init_19_arg_1 = var_11; [L92] state_18 = init_19_arg_1 [L93] SORT_1 init_21_arg_1 = var_14; [L94] state_20 = init_21_arg_1 [L95] SORT_3 init_26_arg_1 = var_24; [L96] state_25 = init_26_arg_1 [L97] SORT_1 init_28_arg_1 = var_14; [L98] state_27 = init_28_arg_1 [L99] SORT_3 init_31_arg_1 = var_24; [L100] state_30 = init_31_arg_1 [L101] SORT_1 init_33_arg_1 = var_14; [L102] state_32 = init_33_arg_1 [L103] SORT_3 init_38_arg_1 = var_24; [L104] state_37 = init_38_arg_1 [L105] SORT_1 init_40_arg_1 = var_14; [L106] state_39 = init_40_arg_1 [L107] SORT_3 init_43_arg_1 = var_24; [L108] state_42 = init_43_arg_1 [L109] SORT_1 init_45_arg_1 = var_14; [L110] state_44 = init_45_arg_1 [L111] SORT_1 init_62_arg_1 = var_14; [L112] state_61 = init_62_arg_1 [L113] SORT_1 init_64_arg_1 = var_14; [L114] state_63 = init_64_arg_1 [L115] SORT_1 init_66_arg_1 = var_14; [L116] state_65 = init_66_arg_1 [L117] SORT_1 init_68_arg_1 = var_14; [L118] state_67 = init_68_arg_1 [L119] SORT_1 init_70_arg_1 = var_14; [L120] state_69 = init_70_arg_1 [L121] SORT_1 init_72_arg_1 = var_14; [L122] state_71 = init_72_arg_1 [L123] SORT_1 init_74_arg_1 = var_14; [L124] state_73 = init_74_arg_1 [L125] SORT_1 init_76_arg_1 = var_14; [L126] state_75 = init_76_arg_1 [L127] SORT_1 init_78_arg_1 = var_14; [L128] state_77 = init_78_arg_1 [L129] SORT_1 init_80_arg_1 = var_14; [L130] state_79 = init_80_arg_1 [L131] SORT_1 init_82_arg_1 = var_14; [L132] state_81 = init_82_arg_1 [L133] SORT_1 init_84_arg_1 = var_14; [L134] state_83 = init_84_arg_1 [L135] SORT_1 init_86_arg_1 = var_14; [L136] state_85 = init_86_arg_1 [L137] SORT_1 init_221_arg_1 = var_14; [L138] state_220 = init_221_arg_1 [L139] SORT_1 init_252_arg_1 = var_14; [L140] state_251 = init_252_arg_1 [L141] SORT_1 init_265_arg_1 = var_14; [L142] state_264 = init_265_arg_1 [L143] SORT_1 init_270_arg_1 = var_14; [L144] state_269 = init_270_arg_1 VAL [init_13_arg_1=0, init_16_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_221_arg_1=0, init_252_arg_1=0, init_265_arg_1=0, init_26_arg_1=0, init_270_arg_1=0, init_28_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, mask_SORT_1=1, mask_SORT_10=18446744073709551615, mask_SORT_215=15, mask_SORT_217=18446744073709551615, mask_SORT_3=4294967295, msb_SORT_1=1, msb_SORT_10=9223372036854775808, msb_SORT_215=8, msb_SORT_217=576460752303423488, msb_SORT_3=2147483648, state_12=0, state_15=0, state_18=0, state_20=0, state_220=0, state_25=0, state_251=0, state_264=0, state_269=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_81=0, state_83=0, state_85=0, var_11=0, var_14=0, var_204=1, var_208=3735928559, var_211=12245771, var_216=0, var_24=0, var_51=1] [L147] input_2 = __VERIFIER_nondet_uchar() [L148] input_4 = __VERIFIER_nondet_uint() [L149] input_4 = input_4 & mask_SORT_3 [L150] input_5 = __VERIFIER_nondet_uint() [L151] input_5 = input_5 & mask_SORT_3 [L152] input_6 = __VERIFIER_nondet_uchar() [L153] input_6 = input_6 & mask_SORT_1 [L154] input_7 = __VERIFIER_nondet_uchar() [L155] input_7 = input_7 & mask_SORT_1 [L156] input_8 = __VERIFIER_nondet_uchar() [L157] input_8 = input_8 & mask_SORT_1 [L158] input_9 = __VERIFIER_nondet_uchar() [L159] input_9 = input_9 & mask_SORT_1 [L162] SORT_1 var_17_arg_0 = state_15; [L163] SORT_10 var_17_arg_1 = state_12; [L164] SORT_10 var_17_arg_2 = var_11; [L165] SORT_10 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L166] var_17 = var_17 & mask_SORT_10 [L167] SORT_1 var_22_arg_0 = state_20; [L168] SORT_10 var_22_arg_1 = state_18; [L169] SORT_10 var_22_arg_2 = var_11; [L170] SORT_10 var_22 = var_22_arg_0 ? var_22_arg_1 : var_22_arg_2; [L171] var_22 = var_22 & mask_SORT_10 [L172] SORT_10 var_23_arg_0 = var_17; [L173] SORT_10 var_23_arg_1 = var_22; [L174] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L175] SORT_1 var_29_arg_0 = state_27; [L176] SORT_3 var_29_arg_1 = state_25; [L177] SORT_3 var_29_arg_2 = var_24; [L178] SORT_3 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L179] var_29 = var_29 & mask_SORT_3 [L180] SORT_1 var_34_arg_0 = state_32; [L181] SORT_3 var_34_arg_1 = state_30; [L182] SORT_3 var_34_arg_2 = var_24; [L183] SORT_3 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L184] var_34 = var_34 & mask_SORT_3 [L185] SORT_3 var_35_arg_0 = var_29; [L186] SORT_3 var_35_arg_1 = var_34; [L187] SORT_1 var_35 = var_35_arg_0 == var_35_arg_1; [L188] SORT_1 var_36_arg_0 = var_23; [L189] SORT_1 var_36_arg_1 = var_35; [L190] SORT_1 var_36 = var_36_arg_0 & var_36_arg_1; [L191] SORT_1 var_41_arg_0 = state_39; [L192] SORT_3 var_41_arg_1 = state_37; [L193] SORT_3 var_41_arg_2 = var_24; [L194] SORT_3 var_41 = var_41_arg_0 ? var_41_arg_1 : var_41_arg_2; [L195] var_41 = var_41 & mask_SORT_3 [L196] SORT_1 var_46_arg_0 = state_44; [L197] SORT_3 var_46_arg_1 = state_42; [L198] SORT_3 var_46_arg_2 = var_24; [L199] SORT_3 var_46 = var_46_arg_0 ? var_46_arg_1 : var_46_arg_2; [L200] var_46 = var_46 & mask_SORT_3 [L201] SORT_3 var_47_arg_0 = var_41; [L202] SORT_3 var_47_arg_1 = var_46; [L203] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L204] SORT_1 var_48_arg_0 = var_36; [L205] SORT_1 var_48_arg_1 = var_47; [L206] SORT_1 var_48 = var_48_arg_0 & var_48_arg_1; [L207] SORT_1 var_52_arg_0 = var_48; [L208] SORT_1 var_52 = ~var_52_arg_0; [L209] SORT_1 var_53_arg_0 = var_51; [L210] SORT_1 var_53_arg_1 = var_52; [L211] SORT_1 var_53 = var_53_arg_0 & var_53_arg_1; [L212] var_53 = var_53 & mask_SORT_1 [L213] SORT_1 bad_54_arg_0 = var_53; [L214] CALL __VERIFIER_assert(!(bad_54_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: 0.7s, 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, 0.3s 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 [2022-11-25 22:21:04,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur --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 57114188bd56a0070acfa3b1f6841bb6a55b2a9596408ce4fb03f42ffef00ea1 --- 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-38b53e6 [2022-11-25 22:21:06,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:21:06,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:21:06,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:21:06,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:21:06,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:21:06,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:21:06,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:21:06,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:21:06,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:21:06,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:21:06,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:21:06,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:21:06,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:21:06,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:21:06,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:21:06,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:21:06,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:21:06,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:21:06,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:21:06,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:21:06,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:21:06,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:21:06,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:21:06,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:21:06,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:21:06,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:21:06,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:21:06,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:21:06,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:21:06,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:21:06,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:21:06,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:21:06,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:21:06,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:21:06,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:21:06,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:21:06,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:21:06,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:21:06,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:21:06,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:21:06,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-25 22:21:06,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:21:06,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:21:06,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:21:06,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:21:06,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:21:06,631 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:21:06,631 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:21:06,632 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:21:06,632 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:21:06,632 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:21:06,632 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:21:06,632 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:21:06,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:21:06,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:21:06,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:21:06,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:21:06,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:21:06,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:21:06,634 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:21:06,634 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:21:06,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:21:06,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:21:06,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:21:06,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:21:06,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:21:06,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:21:06,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:21:06,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:21:06,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:21:06,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:21:06,636 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:21:06,637 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:21:06,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:21:06,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:21:06,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:21:06,637 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_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57114188bd56a0070acfa3b1f6841bb6a55b2a9596408ce4fb03f42ffef00ea1 [2022-11-25 22:21:06,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:21:07,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:21:07,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:21:07,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:21:07,018 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:21:07,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c [2022-11-25 22:21:10,139 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:21:10,426 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:21:10,427 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c [2022-11-25 22:21:10,437 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/data/dfcedccdc/d03cd02ddc1041c78de51518aaa8a2d3/FLAGb8872329b [2022-11-25 22:21:10,452 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/data/dfcedccdc/d03cd02ddc1041c78de51518aaa8a2d3 [2022-11-25 22:21:10,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:21:10,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:21:10,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:21:10,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:21:10,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:21:10,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:21:10" (1/1) ... [2022-11-25 22:21:10,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c04b4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:10, skipping insertion in model container [2022-11-25 22:21:10,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:21:10" (1/1) ... [2022-11-25 22:21:10,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:21:10,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:21:10,695 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_52de2dde-03c4-474a-9c77-43fd818c6802/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c[1107,1120] [2022-11-25 22:21:10,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:21:10,935 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:21:10,946 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_52de2dde-03c4-474a-9c77-43fd818c6802/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul11.c[1107,1120] [2022-11-25 22:21:11,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:21:11,043 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:21:11,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11 WrapperNode [2022-11-25 22:21:11,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:21:11,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:21:11,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:21:11,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:21:11,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,123 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 687 [2022-11-25 22:21:11,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:21:11,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:21:11,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:21:11,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:21:11,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,208 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:21:11,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:21:11,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:21:11,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:21:11,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (1/1) ... [2022-11-25 22:21:11,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:21:11,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:21:11,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:21:11,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:21:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:21:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:21:11,578 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:21:11,580 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:21:12,759 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:21:12,767 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:21:12,767 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:21:12,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:21:12 BoogieIcfgContainer [2022-11-25 22:21:12,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:21:12,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:21:12,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:21:12,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:21:12,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:21:10" (1/3) ... [2022-11-25 22:21:12,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e069905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:21:12, skipping insertion in model container [2022-11-25 22:21:12,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:21:11" (2/3) ... [2022-11-25 22:21:12,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e069905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:21:12, skipping insertion in model container [2022-11-25 22:21:12,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:21:12" (3/3) ... [2022-11-25 22:21:12,785 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mul11.c [2022-11-25 22:21:12,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:21:12,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:21:12,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:21:12,877 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;@57953d49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:21:12,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:21:12,882 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) [2022-11-25 22:21:12,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:21:12,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:12,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:21:12,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:21:12,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:12,903 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 22:21:12,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:21:12,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224839432] [2022-11-25 22:21:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:12,920 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 [2022-11-25 22:21:12,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:21:12,922 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:21:12,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:21:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:13,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-25 22:21:13,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:21:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:21:13,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:21:13,758 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:21:13,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224839432] [2022-11-25 22:21:13,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224839432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:21:13,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:21:13,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:21:13,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041427087] [2022-11-25 22:21:13,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:21:13,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:21:13,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:21:13,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:21:13,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:21:13,799 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) [2022-11-25 22:21:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:14,127 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 22:21:14,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:21:14,130 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 [2022-11-25 22:21:14,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:14,139 INFO L225 Difference]: With dead ends: 20 [2022-11-25 22:21:14,139 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 22:21:14,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:21:14,152 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:14,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:21:14,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 22:21:14,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 22:21:14,183 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) [2022-11-25 22:21:14,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 22:21:14,186 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 22:21:14,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:14,186 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 22:21:14,186 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) [2022-11-25 22:21:14,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 22:21:14,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:21:14,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:21:14,187 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 22:21:14,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:21:14,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:21:14,400 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:21:14,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:21:14,401 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 22:21:14,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:21:14,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728541138] [2022-11-25 22:21:14,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:21:14,403 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 [2022-11-25 22:21:14,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:21:14,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:21:14,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:21:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:21:14,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 85 conjunts are in the unsatisfiable core [2022-11-25 22:21:14,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:21:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:21:17,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:22:08,455 WARN L233 SmtUtils]: Spent 36.43s on a formula simplification. DAG size of input: 406 DAG size of output: 147 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:22:16,750 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 119 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:22:16,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:22:16,961 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:22:16,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728541138] [2022-11-25 22:22:16,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728541138] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:22:16,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1642717340] [2022-11-25 22:22:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:16,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:22:16,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:22:16,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:22:17,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-25 22:22:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:17,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 90 conjunts are in the unsatisfiable core [2022-11-25 22:22:17,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:22:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:22:20,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:22:41,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:22:41,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1642717340] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:22:41,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070618398] [2022-11-25 22:22:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:41,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:22:41,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:22:41,270 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:22:41,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:22:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:41,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 94 conjunts are in the unsatisfiable core [2022-11-25 22:22:41,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:22:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:22:44,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:22:58,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:22:58,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070618398] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:22:58,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:22:58,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 19 [2022-11-25 22:22:58,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605538781] [2022-11-25 22:22:58,409 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:22:58,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 22:22:58,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:22:58,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 22:22:58,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=258, Unknown=1, NotChecked=0, Total=342 [2022-11-25 22:22:58,412 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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) [2022-11-25 22:23:00,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:00,652 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 22:23:00,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:23:00,654 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 22:23:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:00,654 INFO L225 Difference]: With dead ends: 16 [2022-11-25 22:23:00,654 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 22:23:00,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 60.3s TimeCoverageRelationStatistics Valid=122, Invalid=339, Unknown=1, NotChecked=0, Total=462 [2022-11-25 22:23:00,657 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:00,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 39 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 22:23:00,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 22:23:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 22:23:00,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 22:23:00,664 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 22:23:00,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:00,664 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 22:23:00,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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) [2022-11-25 22:23:00,664 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 22:23:00,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:23:00,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:00,665 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 22:23:00,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:23:00,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:23:01,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-25 22:23:01,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:23:01,276 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:23:01,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:01,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 22:23:01,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:23:01,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358221704] [2022-11-25 22:23:01,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:23:01,279 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 [2022-11-25 22:23:01,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:23:01,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:23:01,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52de2dde-03c4-474a-9c77-43fd818c6802/bin/utaipan-ByfvJB40ur/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