./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba --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 f4c6989e17c0a811cff5fa805af2e58eb09ee77084dd73e90bca555d046f9dd6 --- 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-b5237d8 [2022-11-22 01:24:15,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:24:15,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:24:15,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:24:15,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:24:15,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:24:15,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:24:15,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:24:15,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:24:15,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:24:15,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:24:15,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:24:15,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:24:15,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:24:15,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:24:15,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:24:15,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:24:15,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:24:15,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:24:15,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:24:15,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:24:15,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:24:15,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:24:15,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:24:15,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:24:15,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:24:15,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:24:15,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:24:15,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:24:15,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:24:15,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:24:15,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:24:15,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:24:15,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:24:15,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:24:15,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:24:15,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:24:15,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:24:15,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:24:15,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:24:15,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:24:15,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:24:15,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:24:15,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:24:15,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:24:15,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:24:15,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:24:15,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:24:15,707 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:24:15,707 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:24:15,708 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:24:15,708 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:24:15,709 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:24:15,709 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:24:15,709 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:24:15,710 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:24:15,710 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:24:15,710 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:24:15,710 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:24:15,711 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:24:15,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:24:15,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:24:15,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:24:15,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:24:15,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:24:15,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:24:15,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:24:15,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:24:15,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:24:15,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:24:15,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:24:15,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:24:15,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:24:15,715 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:24:15,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:24:15,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:24:15,716 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:24:15,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:24:15,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:24:15,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:24:15,717 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_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4c6989e17c0a811cff5fa805af2e58eb09ee77084dd73e90bca555d046f9dd6 [2022-11-22 01:24:16,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:24:16,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:24:16,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:24:16,041 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:24:16,042 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:24:16,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c [2022-11-22 01:24:19,115 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:24:19,639 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:24:19,640 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c [2022-11-22 01:24:19,661 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/data/8fc3e2fbb/8485be0f17864311869cbc8ad1f2e539/FLAGf922f3881 [2022-11-22 01:24:19,730 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/data/8fc3e2fbb/8485be0f17864311869cbc8ad1f2e539 [2022-11-22 01:24:19,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:24:19,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:24:19,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:24:19,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:24:19,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:24:19,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:24:19" (1/1) ... [2022-11-22 01:24:19,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe56d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:19, skipping insertion in model container [2022-11-22 01:24:19,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:24:19" (1/1) ... [2022-11-22 01:24:19,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:24:19,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:24:20,033 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_57ebd66d-65f0-42f1-9f76-733cba5face2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c[1014,1027] [2022-11-22 01:24:20,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:24:20,576 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:24:20,587 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_57ebd66d-65f0-42f1-9f76-733cba5face2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c[1014,1027] [2022-11-22 01:24:20,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:24:20,820 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:24:20,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20 WrapperNode [2022-11-22 01:24:20,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:24:20,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:24:20,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:24:20,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:24:20,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:20,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,088 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2548 [2022-11-22 01:24:21,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:24:21,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:24:21,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:24:21,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:24:21,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:24:21,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:24:21,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:24:21,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:24:21,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (1/1) ... [2022-11-22 01:24:21,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:24:21,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:24:21,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:24:21,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:24:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:24:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:24:22,116 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:24:22,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:35:21,880 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:35:21,916 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:35:21,917 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:35:21,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:35:21 BoogieIcfgContainer [2022-11-22 01:35:21,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:35:21,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:35:21,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:35:21,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:35:21,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:24:19" (1/3) ... [2022-11-22 01:35:21,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f6d6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:35:21, skipping insertion in model container [2022-11-22 01:35:21,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:20" (2/3) ... [2022-11-22 01:35:21,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f6d6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:35:21, skipping insertion in model container [2022-11-22 01:35:21,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:35:21" (3/3) ... [2022-11-22 01:35:21,928 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c [2022-11-22 01:35:21,946 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:35:21,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:35:21,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:35:21,999 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;@e86bdc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:35:21,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:35:22,003 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) [2022-11-22 01:35:22,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:35:22,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:22,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:35:22,010 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:35:22,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:22,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-22 01:35:22,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:22,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374520679] [2022-11-22 01:35:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:22,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:35:22,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:35:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:35:22,910 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:35:22,912 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:35:22,914 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:35:22,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:35:22,921 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 01:35:22,925 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:35:22,966 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:35:22,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:35:22 BoogieIcfgContainer [2022-11-22 01:35:22,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:35:22,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:35:22,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:35:22,992 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:35:22,993 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:35:21" (3/4) ... [2022-11-22 01:35:22,996 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:35:22,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:35:22,998 INFO L158 Benchmark]: Toolchain (without parser) took 663263.01ms. Allocated memory was 123.7MB in the beginning and 673.2MB in the end (delta: 549.5MB). Free memory was 89.1MB in the beginning and 490.5MB in the end (delta: -401.4MB). Peak memory consumption was 148.5MB. Max. memory is 16.1GB. [2022-11-22 01:35:22,998 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 123.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:35:22,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1085.48ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 88.7MB in the beginning and 109.8MB in the end (delta: -21.1MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2022-11-22 01:35:23,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 267.14ms. Allocated memory is still 178.3MB. Free memory was 109.8MB in the beginning and 81.6MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-22 01:35:23,006 INFO L158 Benchmark]: Boogie Preprocessor took 287.12ms. Allocated memory is still 178.3MB. Free memory was 81.6MB in the beginning and 117.1MB in the end (delta: -35.5MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-11-22 01:35:23,007 INFO L158 Benchmark]: RCFGBuilder took 660541.94ms. Allocated memory was 178.3MB in the beginning and 673.2MB in the end (delta: 494.9MB). Free memory was 117.1MB in the beginning and 568.1MB in the end (delta: -451.0MB). Peak memory consumption was 417.9MB. Max. memory is 16.1GB. [2022-11-22 01:35:23,009 INFO L158 Benchmark]: TraceAbstraction took 1067.91ms. Allocated memory is still 673.2MB. Free memory was 567.0MB in the beginning and 490.5MB in the end (delta: 76.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-11-22 01:35:23,009 INFO L158 Benchmark]: Witness Printer took 5.22ms. Allocated memory is still 673.2MB. Free memory is still 490.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:35:23,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 123.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1085.48ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 88.7MB in the beginning and 109.8MB in the end (delta: -21.1MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 267.14ms. Allocated memory is still 178.3MB. Free memory was 109.8MB in the beginning and 81.6MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 287.12ms. Allocated memory is still 178.3MB. Free memory was 81.6MB in the beginning and 117.1MB in the end (delta: -35.5MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * RCFGBuilder took 660541.94ms. Allocated memory was 178.3MB in the beginning and 673.2MB in the end (delta: 494.9MB). Free memory was 117.1MB in the beginning and 568.1MB in the end (delta: -451.0MB). Peak memory consumption was 417.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1067.91ms. Allocated memory is still 673.2MB. Free memory was 567.0MB in the beginning and 490.5MB in the end (delta: 76.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Witness Printer took 5.22ms. Allocated memory is still 673.2MB. Free memory is still 490.5MB. 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 259, overapproximation of bitwiseAnd at line 155, overapproximation of bitwiseXor at line 254. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_40 = 0; [L39] const SORT_2 var_45 = 1; [L40] const SORT_2 var_46 = 15; [L41] const SORT_2 var_53 = 0; [L42] const SORT_3 var_290 = 0; [L43] const SORT_4 var_292 = 1; [L45] SORT_1 input_51; [L46] SORT_1 input_52; [L47] SORT_1 input_54; [L48] SORT_1 input_55; [L49] SORT_1 input_56; [L50] SORT_1 input_57; [L51] SORT_1 input_67; [L52] SORT_1 input_68; [L53] SORT_1 input_69; [L54] SORT_1 input_70; [L55] SORT_1 input_71; [L56] SORT_1 input_72; [L57] SORT_1 input_84; [L58] SORT_1 input_85; [L59] SORT_1 input_86; [L60] SORT_1 input_87; [L61] SORT_1 input_99; [L62] SORT_1 input_100; [L63] SORT_1 input_101; [L64] SORT_1 input_102; [L65] SORT_1 input_112; [L66] SORT_1 input_113; [L67] SORT_1 input_114; [L68] SORT_1 input_115; [L69] SORT_1 input_116; [L70] SORT_1 input_117; [L71] SORT_1 input_129; [L72] SORT_1 input_130; [L73] SORT_1 input_131; [L74] SORT_1 input_132; [L75] SORT_1 input_133; [L76] SORT_1 input_134; [L77] SORT_1 input_152; [L78] SORT_1 input_153; [L79] SORT_1 input_154; [L80] SORT_1 input_155; [L81] SORT_1 input_173; [L82] SORT_1 input_174; [L83] SORT_1 input_175; [L84] SORT_1 input_176; [L85] SORT_1 input_188; [L86] SORT_1 input_189; [L87] SORT_1 input_201; [L88] SORT_1 input_202; [L89] SORT_1 input_248; [L90] SORT_1 input_249; [L91] SORT_1 input_259; [L92] SORT_1 input_260; [L94] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L105] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L106] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L107] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L108] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L109] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L110] SORT_2 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L111] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_2 init_7_arg_1 = var_5; [L115] state_6 = init_7_arg_1 [L116] SORT_2 init_9_arg_1 = var_5; [L117] state_8 = init_9_arg_1 [L118] SORT_2 init_11_arg_1 = var_5; [L119] state_10 = init_11_arg_1 [L120] SORT_2 init_13_arg_1 = var_5; [L121] state_12 = init_13_arg_1 [L122] SORT_2 init_15_arg_1 = var_5; [L123] state_14 = init_15_arg_1 [L124] SORT_2 init_17_arg_1 = var_5; [L125] state_16 = init_17_arg_1 [L126] SORT_2 init_19_arg_1 = var_5; [L127] state_18 = init_19_arg_1 [L128] SORT_2 init_21_arg_1 = var_5; [L129] state_20 = init_21_arg_1 [L130] SORT_2 init_23_arg_1 = var_5; [L131] state_22 = init_23_arg_1 [L132] SORT_2 init_25_arg_1 = var_5; [L133] state_24 = init_25_arg_1 [L134] SORT_2 init_27_arg_1 = var_5; [L135] state_26 = init_27_arg_1 [L136] SORT_2 init_29_arg_1 = var_5; [L137] state_28 = init_29_arg_1 [L138] SORT_2 init_31_arg_1 = var_5; [L139] state_30 = init_31_arg_1 [L140] SORT_2 init_33_arg_1 = var_5; [L141] state_32 = init_33_arg_1 [L142] SORT_2 init_35_arg_1 = var_5; [L143] state_34 = init_35_arg_1 [L144] SORT_2 init_37_arg_1 = var_5; [L145] state_36 = init_37_arg_1 [L146] SORT_2 init_39_arg_1 = var_5; [L147] state_38 = init_39_arg_1 [L148] SORT_1 init_42_arg_1 = var_40; [L149] state_41 = init_42_arg_1 [L150] SORT_1 init_44_arg_1 = var_40; [L151] state_43 = init_44_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_41=0, state_43=0, state_6=0, state_8=0, var_290=0, var_292=1, var_40=0, var_45=1, var_46=15, var_5=0, var_53=0] [L154] input_51 = __VERIFIER_nondet_uchar() [L155] input_51 = input_51 & mask_SORT_1 [L156] input_52 = __VERIFIER_nondet_uchar() [L157] input_52 = input_52 & mask_SORT_1 [L158] input_54 = __VERIFIER_nondet_uchar() [L159] input_54 = input_54 & mask_SORT_1 [L160] input_55 = __VERIFIER_nondet_uchar() [L161] input_55 = input_55 & mask_SORT_1 [L162] input_56 = __VERIFIER_nondet_uchar() [L163] input_56 = input_56 & mask_SORT_1 [L164] input_57 = __VERIFIER_nondet_uchar() [L165] input_57 = input_57 & mask_SORT_1 [L166] input_67 = __VERIFIER_nondet_uchar() [L167] input_67 = input_67 & mask_SORT_1 [L168] input_68 = __VERIFIER_nondet_uchar() [L169] input_68 = input_68 & mask_SORT_1 [L170] input_69 = __VERIFIER_nondet_uchar() [L171] input_69 = input_69 & mask_SORT_1 [L172] input_70 = __VERIFIER_nondet_uchar() [L173] input_70 = input_70 & mask_SORT_1 [L174] input_71 = __VERIFIER_nondet_uchar() [L175] input_71 = input_71 & mask_SORT_1 [L176] input_72 = __VERIFIER_nondet_uchar() [L177] input_72 = input_72 & mask_SORT_1 [L178] input_84 = __VERIFIER_nondet_uchar() [L179] input_84 = input_84 & mask_SORT_1 [L180] input_85 = __VERIFIER_nondet_uchar() [L181] input_85 = input_85 & mask_SORT_1 [L182] input_86 = __VERIFIER_nondet_uchar() [L183] input_86 = input_86 & mask_SORT_1 [L184] input_87 = __VERIFIER_nondet_uchar() [L185] input_87 = input_87 & mask_SORT_1 [L186] input_99 = __VERIFIER_nondet_uchar() [L187] input_99 = input_99 & mask_SORT_1 [L188] input_100 = __VERIFIER_nondet_uchar() [L189] input_100 = input_100 & mask_SORT_1 [L190] input_101 = __VERIFIER_nondet_uchar() [L191] input_101 = input_101 & mask_SORT_1 [L192] input_102 = __VERIFIER_nondet_uchar() [L193] input_102 = input_102 & mask_SORT_1 [L194] input_112 = __VERIFIER_nondet_uchar() [L195] input_112 = input_112 & mask_SORT_1 [L196] input_113 = __VERIFIER_nondet_uchar() [L197] input_113 = input_113 & mask_SORT_1 [L198] input_114 = __VERIFIER_nondet_uchar() [L199] input_114 = input_114 & mask_SORT_1 [L200] input_115 = __VERIFIER_nondet_uchar() [L201] input_115 = input_115 & mask_SORT_1 [L202] input_116 = __VERIFIER_nondet_uchar() [L203] input_116 = input_116 & mask_SORT_1 [L204] input_117 = __VERIFIER_nondet_uchar() [L205] input_117 = input_117 & mask_SORT_1 [L206] input_129 = __VERIFIER_nondet_uchar() [L207] input_129 = input_129 & mask_SORT_1 [L208] input_130 = __VERIFIER_nondet_uchar() [L209] input_130 = input_130 & mask_SORT_1 [L210] input_131 = __VERIFIER_nondet_uchar() [L211] input_131 = input_131 & mask_SORT_1 [L212] input_132 = __VERIFIER_nondet_uchar() [L213] input_132 = input_132 & mask_SORT_1 [L214] input_133 = __VERIFIER_nondet_uchar() [L215] input_133 = input_133 & mask_SORT_1 [L216] input_134 = __VERIFIER_nondet_uchar() [L217] input_134 = input_134 & mask_SORT_1 [L218] input_152 = __VERIFIER_nondet_uchar() [L219] input_152 = input_152 & mask_SORT_1 [L220] input_153 = __VERIFIER_nondet_uchar() [L221] input_153 = input_153 & mask_SORT_1 [L222] input_154 = __VERIFIER_nondet_uchar() [L223] input_154 = input_154 & mask_SORT_1 [L224] input_155 = __VERIFIER_nondet_uchar() [L225] input_155 = input_155 & mask_SORT_1 [L226] input_173 = __VERIFIER_nondet_uchar() [L227] input_173 = input_173 & mask_SORT_1 [L228] input_174 = __VERIFIER_nondet_uchar() [L229] input_174 = input_174 & mask_SORT_1 [L230] input_175 = __VERIFIER_nondet_uchar() [L231] input_175 = input_175 & mask_SORT_1 [L232] input_176 = __VERIFIER_nondet_uchar() [L233] input_176 = input_176 & mask_SORT_1 [L234] input_188 = __VERIFIER_nondet_uchar() [L235] input_188 = input_188 & mask_SORT_1 [L236] input_189 = __VERIFIER_nondet_uchar() [L237] input_189 = input_189 & mask_SORT_1 [L238] input_201 = __VERIFIER_nondet_uchar() [L239] input_201 = input_201 & mask_SORT_1 [L240] input_202 = __VERIFIER_nondet_uchar() [L241] input_202 = input_202 & mask_SORT_1 [L242] input_248 = __VERIFIER_nondet_uchar() [L243] input_248 = input_248 & mask_SORT_1 [L244] input_249 = __VERIFIER_nondet_uchar() [L245] input_249 = input_249 & mask_SORT_1 [L246] input_259 = __VERIFIER_nondet_uchar() [L247] input_259 = input_259 & mask_SORT_1 [L248] input_260 = __VERIFIER_nondet_uchar() [L249] input_260 = input_260 & mask_SORT_1 [L252] SORT_2 var_47_arg_0 = var_46; [L253] SORT_2 var_47_arg_1 = state_38; [L254] SORT_2 var_47 = var_47_arg_0 ^ var_47_arg_1; [L255] var_47 = var_47 & mask_SORT_2 [L256] SORT_2 var_48_arg_0 = var_45; [L257] SORT_2 var_48_arg_1 = var_47; [L258] SORT_1 var_48 = var_48_arg_0 == var_48_arg_1; [L259] SORT_1 var_49_arg_0 = ~state_43; [L260] var_49_arg_0 = var_49_arg_0 & mask_SORT_1 [L261] SORT_1 var_49_arg_1 = var_48; [L262] SORT_1 var_49 = var_49_arg_0 & var_49_arg_1; [L263] var_49 = var_49 & mask_SORT_1 [L264] SORT_1 bad_50_arg_0 = var_49; [L265] CALL __VERIFIER_assert(!(bad_50_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: 0.9s, 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, 0.4s 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 [2022-11-22 01:35:23,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/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_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba --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 f4c6989e17c0a811cff5fa805af2e58eb09ee77084dd73e90bca555d046f9dd6 --- 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-b5237d8 [2022-11-22 01:35:25,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:35:25,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:35:25,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:35:25,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:35:25,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:35:25,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:35:25,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:35:25,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:35:25,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:35:25,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:35:25,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:35:25,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:35:25,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:35:25,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:35:25,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:35:25,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:35:25,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:35:25,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:35:25,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:35:25,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:35:25,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:35:25,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:35:25,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:35:25,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:35:25,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:35:25,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:35:25,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:35:25,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:35:25,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:35:25,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:35:25,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:35:25,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:35:25,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:35:25,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:35:25,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:35:25,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:35:25,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:35:25,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:35:25,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:35:25,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:35:25,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:35:25,444 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:35:25,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:35:25,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:35:25,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:35:25,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:35:25,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:35:25,446 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:35:25,446 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:35:25,446 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:35:25,447 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:35:25,447 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:35:25,447 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:35:25,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:35:25,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:35:25,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:35:25,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:35:25,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:35:25,449 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:35:25,449 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:35:25,449 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:35:25,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:35:25,450 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:35:25,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:35:25,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:35:25,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:35:25,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:35:25,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:35:25,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:35:25,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:35:25,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:35:25,452 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:35:25,452 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:35:25,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:35:25,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:35:25,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:35:25,453 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_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4c6989e17c0a811cff5fa805af2e58eb09ee77084dd73e90bca555d046f9dd6 [2022-11-22 01:35:25,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:35:25,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:35:25,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:35:25,839 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:35:25,840 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:35:25,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c [2022-11-22 01:35:28,956 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:35:29,328 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:35:29,329 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c [2022-11-22 01:35:29,348 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/data/39d7cb320/145eb1a5123145218279150fc82c41b2/FLAGfe8e69408 [2022-11-22 01:35:29,363 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/data/39d7cb320/145eb1a5123145218279150fc82c41b2 [2022-11-22 01:35:29,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:35:29,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:35:29,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:35:29,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:35:29,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:35:29,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:35:29" (1/1) ... [2022-11-22 01:35:29,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7be367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:29, skipping insertion in model container [2022-11-22 01:35:29,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:35:29" (1/1) ... [2022-11-22 01:35:29,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:35:29,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:35:29,727 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_57ebd66d-65f0-42f1-9f76-733cba5face2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c[1014,1027] [2022-11-22 01:35:30,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:35:30,184 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:35:30,195 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_57ebd66d-65f0-42f1-9f76-733cba5face2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c[1014,1027] [2022-11-22 01:35:30,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:35:30,395 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:35:30,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30 WrapperNode [2022-11-22 01:35:30,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:35:30,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:35:30,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:35:30,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:35:30,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,594 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2548 [2022-11-22 01:35:30,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:35:30,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:35:30,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:35:30,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:35:30,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,781 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:35:30,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:35:30,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:35:30,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:35:30,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (1/1) ... [2022-11-22 01:35:30,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:35:30,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:35:30,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:35:30,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:35:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:35:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:35:31,582 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:35:31,584 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:35:36,545 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:35:36,551 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:35:36,552 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:35:36,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:35:36 BoogieIcfgContainer [2022-11-22 01:35:36,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:35:36,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:35:36,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:35:36,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:35:36,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:35:29" (1/3) ... [2022-11-22 01:35:36,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e35ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:35:36, skipping insertion in model container [2022-11-22 01:35:36,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:30" (2/3) ... [2022-11-22 01:35:36,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e35ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:35:36, skipping insertion in model container [2022-11-22 01:35:36,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:35:36" (3/3) ... [2022-11-22 01:35:36,562 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peg_solitaire.1.prop1-func-interl.c [2022-11-22 01:35:36,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:35:36,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:35:36,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:35:36,634 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;@36d64547, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:35:36,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:35:36,639 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) [2022-11-22 01:35:36,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:35:36,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:36,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:35:36,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:35:36,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:36,652 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 01:35:36,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:35:36,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167813301] [2022-11-22 01:35:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:36,669 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 [2022-11-22 01:35:36,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:35:36,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:35:36,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:35:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:37,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-22 01:35:37,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:35:37,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:35:37,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:35:37,409 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:35:37,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167813301] [2022-11-22 01:35:37,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167813301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:37,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:37,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:37,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360809031] [2022-11-22 01:35:37,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:37,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:37,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:35:37,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:37,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:37,457 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) [2022-11-22 01:35:37,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:37,800 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 01:35:37,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:35:37,803 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 [2022-11-22 01:35:37,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:37,810 INFO L225 Difference]: With dead ends: 20 [2022-11-22 01:35:37,810 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 01:35:37,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:37,816 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:37,817 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] [2022-11-22 01:35:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 01:35:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 01:35:37,846 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) [2022-11-22 01:35:37,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 01:35:37,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 01:35:37,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:37,848 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 01:35:37,848 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) [2022-11-22 01:35:37,849 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 01:35:37,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:35:37,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:37,849 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:37,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:35:38,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:35:38,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:35:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:38,068 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 01:35:38,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:35:38,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384439972] [2022-11-22 01:35:38,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:38,072 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 [2022-11-22 01:35:38,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:35:38,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:35:38,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ebd66d-65f0-42f1-9f76-733cba5face2/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:35:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:39,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 2301 conjuncts, 941 conjunts are in the unsatisfiable core [2022-11-22 01:35:39,522 INFO L286 TraceCheckSpWp]: Computing forward predicates...