./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.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_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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_a1200250-958f-45f6-9411-551ed7fdf6d5/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 ec2e645b3322e9e18b354a0ed429ba851421510da82c5d51615a96c905ed7052 --- 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 [2022-11-26 00:08:02,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:08:02,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:08:02,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:08:02,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:08:02,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:08:02,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:08:02,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:08:02,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:08:02,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:08:02,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:08:02,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:08:02,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:08:02,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:08:02,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:08:02,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:08:02,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:08:02,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:08:02,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:08:02,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:08:02,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:08:02,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:08:02,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:08:02,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:08:02,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:08:02,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:08:02,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:08:02,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:08:02,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:08:02,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:08:02,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:08:02,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:08:02,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:08:02,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:08:02,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:08:02,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:08:02,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:08:02,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:08:02,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:08:02,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:08:02,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:08:02,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:08:02,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:08:02,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:08:02,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:08:02,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:08:02,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:08:02,598 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:08:02,598 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:08:02,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:08:02,598 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:08:02,599 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:08:02,599 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:08:02,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:08:02,600 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:08:02,600 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:08:02,600 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:08:02,601 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:08:02,601 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:08:02,601 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:08:02,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:08:02,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:08:02,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:08:02,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:08:02,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:08:02,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:08:02,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:08:02,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:08:02,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:08:02,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:08:02,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:08:02,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:08:02,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:08:02,604 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:08:02,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:08:02,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:08:02,605 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:08:02,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:08:02,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:08:02,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:08:02,605 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_a1200250-958f-45f6-9411-551ed7fdf6d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2e645b3322e9e18b354a0ed429ba851421510da82c5d51615a96c905ed7052 [2022-11-26 00:08:02,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:08:02,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:08:02,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:08:02,953 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:08:02,954 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:08:02,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c [2022-11-26 00:08:05,957 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:08:06,433 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:08:06,433 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c [2022-11-26 00:08:06,460 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/data/37b5f6a2d/0139682c66d74c84a55b3aeb1c4e80c1/FLAG1c7331f5b [2022-11-26 00:08:06,478 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/data/37b5f6a2d/0139682c66d74c84a55b3aeb1c4e80c1 [2022-11-26 00:08:06,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:08:06,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:08:06,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:08:06,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:08:06,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:08:06,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:08:06" (1/1) ... [2022-11-26 00:08:06,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc9a2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:06, skipping insertion in model container [2022-11-26 00:08:06,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:08:06" (1/1) ... [2022-11-26 00:08:06,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:08:06,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:08:06,823 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_a1200250-958f-45f6-9411-551ed7fdf6d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c[1107,1120] [2022-11-26 00:08:07,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:08:07,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:08:07,417 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_a1200250-958f-45f6-9411-551ed7fdf6d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c[1107,1120] [2022-11-26 00:08:07,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:08:07,702 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:08:07,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07 WrapperNode [2022-11-26 00:08:07,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:08:07,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:08:07,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:08:07,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:08:07,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:07,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:07,911 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3467 [2022-11-26 00:08:07,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:08:07,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:08:07,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:08:07,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:08:07,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:07,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:08,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:08,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:08,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:08,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:08,121 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:08,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:08,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:08:08,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:08:08,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:08:08,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:08:08,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (1/1) ... [2022-11-26 00:08:08,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:08:08,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:08,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:08:08,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:08:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:08:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:08:09,088 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:08:09,090 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:12:10,524 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:12:10,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:12:10,596 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:12:10,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:10 BoogieIcfgContainer [2022-11-26 00:12:10,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:12:10,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:12:10,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:12:10,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:12:10,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:08:06" (1/3) ... [2022-11-26 00:12:10,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6440daf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:12:10, skipping insertion in model container [2022-11-26 00:12:10,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:07" (2/3) ... [2022-11-26 00:12:10,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6440daf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:12:10, skipping insertion in model container [2022-11-26 00:12:10,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:10" (3/3) ... [2022-11-26 00:12:10,611 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal185.c [2022-11-26 00:12:10,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:12:10,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:12:10,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:12:10,705 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;@71821425, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:12:10,706 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:12:10,710 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) [2022-11-26 00:12:10,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:12:10,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:10,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:12:10,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:12:10,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:10,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-26 00:12:10,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:10,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406812800] [2022-11-26 00:12:10,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:10,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:12:11,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:12:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:12:11,502 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:12:11,511 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:12:11,513 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:12:11,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:12:11,520 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:12:11,525 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:12:11,588 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-26 00:12:11,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:12:11 BoogieIcfgContainer [2022-11-26 00:12:11,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:12:11,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:12:11,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:12:11,613 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:12:11,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:10" (3/4) ... [2022-11-26 00:12:11,617 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:12:11,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:12:11,619 INFO L158 Benchmark]: Toolchain (without parser) took 245133.57ms. Allocated memory was 176.2MB in the beginning and 1.1GB in the end (delta: 924.8MB). Free memory was 141.0MB in the beginning and 770.4MB in the end (delta: -629.4MB). Peak memory consumption was 294.2MB. Max. memory is 16.1GB. [2022-11-26 00:12:11,619 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:12:11,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1217.45ms. Allocated memory is still 176.2MB. Free memory was 141.0MB in the beginning and 121.0MB in the end (delta: 20.0MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2022-11-26 00:12:11,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 206.82ms. Allocated memory is still 176.2MB. Free memory was 121.0MB in the beginning and 91.7MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-26 00:12:11,621 INFO L158 Benchmark]: Boogie Preprocessor took 287.81ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 91.7MB in the beginning and 176.4MB in the end (delta: -84.7MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-11-26 00:12:11,622 INFO L158 Benchmark]: RCFGBuilder took 242397.85ms. Allocated memory was 245.4MB in the beginning and 1.1GB in the end (delta: 855.6MB). Free memory was 175.4MB in the beginning and 851.1MB in the end (delta: -675.7MB). Peak memory consumption was 678.0MB. Max. memory is 16.1GB. [2022-11-26 00:12:11,623 INFO L158 Benchmark]: TraceAbstraction took 1011.10ms. Allocated memory is still 1.1GB. Free memory was 850.1MB in the beginning and 770.4MB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2022-11-26 00:12:11,623 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 1.1GB. Free memory is still 770.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:12:11,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1217.45ms. Allocated memory is still 176.2MB. Free memory was 141.0MB in the beginning and 121.0MB in the end (delta: 20.0MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 206.82ms. Allocated memory is still 176.2MB. Free memory was 121.0MB in the beginning and 91.7MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 287.81ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 91.7MB in the beginning and 176.4MB in the end (delta: -84.7MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242397.85ms. Allocated memory was 245.4MB in the beginning and 1.1GB in the end (delta: 855.6MB). Free memory was 175.4MB in the beginning and 851.1MB in the end (delta: -675.7MB). Peak memory consumption was 678.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1011.10ms. Allocated memory is still 1.1GB. Free memory was 850.1MB in the beginning and 770.4MB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 1.1GB. Free memory is still 770.4MB. 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 388, overapproximation of bitwiseOr at line 404, overapproximation of bitwiseAnd at line 293. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L29] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 2); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (2 - 1); [L34] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 3); [L35] const SORT_20 msb_SORT_20 = (SORT_20)1 << (3 - 1); [L37] const SORT_167 mask_SORT_167 = (SORT_167)-1 >> (sizeof(SORT_167) * 8 - 31); [L38] const SORT_167 msb_SORT_167 = (SORT_167)1 << (31 - 1); [L40] const SORT_1 var_90 = 0; [L41] const SORT_7 var_94 = 0; [L42] const SORT_1 var_117 = 1; [L43] const SORT_7 var_124 = 1618477080; [L44] const SORT_9 var_141 = 0; [L45] const SORT_9 var_150 = 2; [L46] const SORT_9 var_154 = 3; [L47] const SORT_9 var_165 = 1; [L48] const SORT_167 var_168 = 1618477056; [L49] const SORT_167 var_171 = 1618478076; [L50] const SORT_20 var_216 = 0; [L51] const SORT_20 var_220 = 2; [L52] const SORT_20 var_222 = 4; [L53] const SORT_20 var_235 = 3; [L54] const SORT_20 var_320 = 5; [L55] const SORT_20 var_322 = 7; [L56] const SORT_20 var_335 = 6; [L57] const SORT_20 var_369 = 1; [L59] SORT_1 input_2; [L60] SORT_1 input_3; [L61] SORT_1 input_4; [L62] SORT_1 input_5; [L63] SORT_1 input_6; [L64] SORT_7 input_8; [L65] SORT_9 input_10; [L66] SORT_1 input_11; [L67] SORT_7 input_12; [L68] SORT_7 input_13; [L69] SORT_1 input_14; [L70] SORT_7 input_15; [L71] SORT_1 input_16; [L72] SORT_1 input_17; [L73] SORT_1 input_18; [L74] SORT_7 input_19; [L75] SORT_20 input_21; [L76] SORT_7 input_22; [L77] SORT_1 input_23; [L78] SORT_1 input_24; [L79] SORT_7 input_25; [L80] SORT_1 input_26; [L81] SORT_1 input_27; [L82] SORT_1 input_28; [L83] SORT_1 input_29; [L84] SORT_1 input_30; [L85] SORT_1 input_31; [L86] SORT_9 input_32; [L87] SORT_9 input_33; [L88] SORT_7 input_34; [L89] SORT_7 input_35; [L90] SORT_1 input_36; [L91] SORT_9 input_37; [L92] SORT_9 input_38; [L93] SORT_7 input_39; [L94] SORT_7 input_40; [L95] SORT_1 input_41; [L96] SORT_1 input_42; [L97] SORT_1 input_43; [L98] SORT_7 input_44; [L99] SORT_7 input_45; [L100] SORT_1 input_46; [L101] SORT_1 input_47; [L102] SORT_1 input_48; [L103] SORT_1 input_49; [L104] SORT_9 input_50; [L105] SORT_9 input_51; [L106] SORT_1 input_52; [L107] SORT_1 input_53; [L108] SORT_1 input_54; [L109] SORT_1 input_55; [L110] SORT_1 input_56; [L111] SORT_1 input_57; [L112] SORT_1 input_58; [L113] SORT_1 input_59; [L114] SORT_1 input_60; [L115] SORT_1 input_61; [L116] SORT_9 input_62; [L117] SORT_9 input_63; [L118] SORT_1 input_64; [L119] SORT_1 input_65; [L120] SORT_1 input_66; [L121] SORT_1 input_67; [L122] SORT_9 input_68; [L123] SORT_9 input_69; [L124] SORT_7 input_70; [L125] SORT_7 input_71; [L126] SORT_7 input_72; [L127] SORT_7 input_73; [L128] SORT_9 input_74; [L129] SORT_9 input_75; [L130] SORT_7 input_76; [L131] SORT_7 input_77; [L132] SORT_7 input_78; [L133] SORT_7 input_79; [L134] SORT_20 input_80; [L135] SORT_20 input_81; [L136] SORT_1 input_82; [L137] SORT_1 input_83; [L138] SORT_7 input_84; [L139] SORT_7 input_85; [L140] SORT_7 input_86; [L141] SORT_7 input_87; [L142] SORT_1 input_88; [L143] SORT_1 input_89; [L145] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L146] SORT_7 state_95 = __VERIFIER_nondet_uint() & mask_SORT_7; [L147] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L148] SORT_7 state_105 = __VERIFIER_nondet_uint() & mask_SORT_7; [L149] SORT_7 state_121 = __VERIFIER_nondet_uint() & mask_SORT_7; [L150] SORT_1 state_126 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L151] SORT_1 state_131 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L152] SORT_7 state_136 = __VERIFIER_nondet_uint() & mask_SORT_7; [L153] SORT_9 state_142 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L154] SORT_1 state_145 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L155] SORT_9 state_151 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L156] SORT_1 state_159 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L157] SORT_1 state_203 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L158] SORT_1 state_206 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L159] SORT_20 state_217 = __VERIFIER_nondet_uchar() & mask_SORT_20; [L160] SORT_9 state_248 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L161] SORT_9 state_253 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L162] SORT_1 state_257 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L163] SORT_1 state_264 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L164] SORT_1 state_307 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L165] SORT_1 state_310 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L166] SORT_7 state_347 = __VERIFIER_nondet_uint() & mask_SORT_7; [L167] SORT_1 state_350 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L168] SORT_7 state_358 = __VERIFIER_nondet_uint() & mask_SORT_7; [L169] SORT_7 state_447 = __VERIFIER_nondet_uint() & mask_SORT_7; [L170] SORT_7 state_454 = __VERIFIER_nondet_uint() & mask_SORT_7; [L171] SORT_7 state_606 = __VERIFIER_nondet_uint() & mask_SORT_7; [L172] SORT_1 state_610 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L173] SORT_1 state_615 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L174] SORT_7 state_620 = __VERIFIER_nondet_uint() & mask_SORT_7; [L175] SORT_9 state_625 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L176] SORT_1 state_628 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L177] SORT_9 state_633 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L178] SORT_1 state_640 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L179] SORT_1 state_671 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L180] SORT_1 state_674 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L181] SORT_20 state_684 = __VERIFIER_nondet_uchar() & mask_SORT_20; [L182] SORT_9 state_712 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L183] SORT_9 state_717 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L184] SORT_1 state_721 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L185] SORT_1 state_728 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L186] SORT_1 state_763 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L187] SORT_1 state_766 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L188] SORT_7 state_800 = __VERIFIER_nondet_uint() & mask_SORT_7; [L189] SORT_1 state_803 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L190] SORT_7 state_811 = __VERIFIER_nondet_uint() & mask_SORT_7; [L191] SORT_7 state_899 = __VERIFIER_nondet_uint() & mask_SORT_7; [L192] SORT_7 state_906 = __VERIFIER_nondet_uint() & mask_SORT_7; [L194] SORT_1 init_92_arg_1 = var_90; [L195] state_91 = init_92_arg_1 [L196] SORT_7 init_96_arg_1 = var_94; [L197] state_95 = init_96_arg_1 [L198] SORT_1 init_98_arg_1 = var_90; [L199] state_97 = init_98_arg_1 [L200] SORT_7 init_106_arg_1 = var_94; [L201] state_105 = init_106_arg_1 [L202] SORT_7 init_122_arg_1 = var_94; [L203] state_121 = init_122_arg_1 [L204] SORT_1 init_127_arg_1 = var_90; [L205] state_126 = init_127_arg_1 [L206] SORT_1 init_132_arg_1 = var_90; [L207] state_131 = init_132_arg_1 [L208] SORT_7 init_137_arg_1 = var_94; [L209] state_136 = init_137_arg_1 [L210] SORT_9 init_143_arg_1 = var_141; [L211] state_142 = init_143_arg_1 [L212] SORT_1 init_146_arg_1 = var_90; [L213] state_145 = init_146_arg_1 [L214] SORT_9 init_152_arg_1 = var_141; [L215] state_151 = init_152_arg_1 [L216] SORT_1 init_160_arg_1 = var_90; [L217] state_159 = init_160_arg_1 [L218] SORT_1 init_204_arg_1 = var_90; [L219] state_203 = init_204_arg_1 [L220] SORT_1 init_207_arg_1 = var_90; [L221] state_206 = init_207_arg_1 [L222] SORT_20 init_218_arg_1 = var_216; [L223] state_217 = init_218_arg_1 [L224] SORT_9 init_249_arg_1 = var_141; [L225] state_248 = init_249_arg_1 [L226] SORT_9 init_254_arg_1 = var_141; [L227] state_253 = init_254_arg_1 [L228] SORT_1 init_258_arg_1 = var_90; [L229] state_257 = init_258_arg_1 [L230] SORT_1 init_265_arg_1 = var_90; [L231] state_264 = init_265_arg_1 [L232] SORT_1 init_308_arg_1 = var_90; [L233] state_307 = init_308_arg_1 [L234] SORT_1 init_311_arg_1 = var_90; [L235] state_310 = init_311_arg_1 [L236] SORT_7 init_348_arg_1 = var_94; [L237] state_347 = init_348_arg_1 [L238] SORT_1 init_351_arg_1 = var_90; [L239] state_350 = init_351_arg_1 [L240] SORT_7 init_359_arg_1 = var_94; [L241] state_358 = init_359_arg_1 [L242] SORT_7 init_448_arg_1 = var_94; [L243] state_447 = init_448_arg_1 [L244] SORT_7 init_455_arg_1 = var_94; [L245] state_454 = init_455_arg_1 [L246] SORT_7 init_607_arg_1 = var_94; [L247] state_606 = init_607_arg_1 [L248] SORT_1 init_611_arg_1 = var_90; [L249] state_610 = init_611_arg_1 [L250] SORT_1 init_616_arg_1 = var_90; [L251] state_615 = init_616_arg_1 [L252] SORT_7 init_621_arg_1 = var_94; [L253] state_620 = init_621_arg_1 [L254] SORT_9 init_626_arg_1 = var_141; [L255] state_625 = init_626_arg_1 [L256] SORT_1 init_629_arg_1 = var_90; [L257] state_628 = init_629_arg_1 [L258] SORT_9 init_634_arg_1 = var_141; [L259] state_633 = init_634_arg_1 [L260] SORT_1 init_641_arg_1 = var_90; [L261] state_640 = init_641_arg_1 [L262] SORT_1 init_672_arg_1 = var_90; [L263] state_671 = init_672_arg_1 [L264] SORT_1 init_675_arg_1 = var_90; [L265] state_674 = init_675_arg_1 [L266] SORT_20 init_685_arg_1 = var_216; [L267] state_684 = init_685_arg_1 [L268] SORT_9 init_713_arg_1 = var_141; [L269] state_712 = init_713_arg_1 [L270] SORT_9 init_718_arg_1 = var_141; [L271] state_717 = init_718_arg_1 [L272] SORT_1 init_722_arg_1 = var_90; [L273] state_721 = init_722_arg_1 [L274] SORT_1 init_729_arg_1 = var_90; [L275] state_728 = init_729_arg_1 [L276] SORT_1 init_764_arg_1 = var_90; [L277] state_763 = init_764_arg_1 [L278] SORT_1 init_767_arg_1 = var_90; [L279] state_766 = init_767_arg_1 [L280] SORT_7 init_801_arg_1 = var_94; [L281] state_800 = init_801_arg_1 [L282] SORT_1 init_804_arg_1 = var_90; [L283] state_803 = init_804_arg_1 [L284] SORT_7 init_812_arg_1 = var_94; [L285] state_811 = init_812_arg_1 [L286] SORT_7 init_900_arg_1 = var_94; [L287] state_899 = init_900_arg_1 [L288] SORT_7 init_907_arg_1 = var_94; [L289] state_906 = init_907_arg_1 VAL [init_106_arg_1=0, init_122_arg_1=0, init_127_arg_1=0, init_132_arg_1=0, init_137_arg_1=0, init_143_arg_1=0, init_146_arg_1=0, init_152_arg_1=0, init_160_arg_1=0, init_204_arg_1=0, init_207_arg_1=0, init_218_arg_1=0, init_249_arg_1=0, init_254_arg_1=0, init_258_arg_1=0, init_265_arg_1=0, init_308_arg_1=0, init_311_arg_1=0, init_348_arg_1=0, init_351_arg_1=0, init_359_arg_1=0, init_448_arg_1=0, init_455_arg_1=0, init_607_arg_1=0, init_611_arg_1=0, init_616_arg_1=0, init_621_arg_1=0, init_626_arg_1=0, init_629_arg_1=0, init_634_arg_1=0, init_641_arg_1=0, init_672_arg_1=0, init_675_arg_1=0, init_685_arg_1=0, init_713_arg_1=0, init_718_arg_1=0, init_722_arg_1=0, init_729_arg_1=0, init_764_arg_1=0, init_767_arg_1=0, init_801_arg_1=0, init_804_arg_1=0, init_812_arg_1=0, init_900_arg_1=0, init_907_arg_1=0, init_92_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, mask_SORT_1=1, mask_SORT_167=4294967295, mask_SORT_20=7, mask_SORT_7=4294967295, mask_SORT_9=3, msb_SORT_1=1, msb_SORT_167=1073741824, msb_SORT_20=4, msb_SORT_7=2147483648, msb_SORT_9=2, state_105=0, state_121=0, state_126=0, state_131=0, state_136=0, state_142=0, state_145=0, state_151=0, state_159=0, state_203=0, state_206=0, state_217=0, state_248=0, state_253=0, state_257=0, state_264=0, state_307=0, state_310=0, state_347=0, state_350=0, state_358=0, state_447=0, state_454=0, state_606=0, state_610=0, state_615=0, state_620=0, state_625=0, state_628=0, state_633=0, state_640=0, state_671=0, state_674=0, state_684=0, state_712=0, state_717=0, state_721=0, state_728=0, state_763=0, state_766=0, state_800=0, state_803=0, state_811=0, state_899=0, state_906=0, state_91=0, state_95=0, state_97=0, var_117=1, var_124=1618477080, var_141=0, var_150=2, var_154=3, var_165=1, var_168=1618477056, var_171=1618478076, var_216=0, var_220=2, var_222=4, var_235=3, var_320=5, var_322=7, var_335=6, var_369=1, var_90=0, var_94=0] [L292] input_2 = __VERIFIER_nondet_uchar() [L293] input_2 = input_2 & mask_SORT_1 [L294] input_3 = __VERIFIER_nondet_uchar() [L295] input_3 = input_3 & mask_SORT_1 [L296] input_4 = __VERIFIER_nondet_uchar() [L297] input_4 = input_4 & mask_SORT_1 [L298] input_5 = __VERIFIER_nondet_uchar() [L299] input_6 = __VERIFIER_nondet_uchar() [L300] input_8 = __VERIFIER_nondet_uint() [L301] input_8 = input_8 & mask_SORT_7 [L302] input_10 = __VERIFIER_nondet_uchar() [L303] input_11 = __VERIFIER_nondet_uchar() [L304] input_12 = __VERIFIER_nondet_uint() [L305] input_12 = input_12 & mask_SORT_7 [L306] input_13 = __VERIFIER_nondet_uint() [L307] input_14 = __VERIFIER_nondet_uchar() [L308] input_14 = input_14 & mask_SORT_1 [L309] input_15 = __VERIFIER_nondet_uint() [L310] input_16 = __VERIFIER_nondet_uchar() [L311] input_16 = input_16 & mask_SORT_1 [L312] input_17 = __VERIFIER_nondet_uchar() [L313] input_18 = __VERIFIER_nondet_uchar() [L314] input_18 = input_18 & mask_SORT_1 [L315] input_19 = __VERIFIER_nondet_uint() [L316] input_21 = __VERIFIER_nondet_uchar() [L317] input_22 = __VERIFIER_nondet_uint() [L318] input_23 = __VERIFIER_nondet_uchar() [L319] input_24 = __VERIFIER_nondet_uchar() [L320] input_25 = __VERIFIER_nondet_uint() [L321] input_26 = __VERIFIER_nondet_uchar() [L322] input_27 = __VERIFIER_nondet_uchar() [L323] input_28 = __VERIFIER_nondet_uchar() [L324] input_29 = __VERIFIER_nondet_uchar() [L325] input_30 = __VERIFIER_nondet_uchar() [L326] input_31 = __VERIFIER_nondet_uchar() [L327] input_32 = __VERIFIER_nondet_uchar() [L328] input_33 = __VERIFIER_nondet_uchar() [L329] input_34 = __VERIFIER_nondet_uint() [L330] input_35 = __VERIFIER_nondet_uint() [L331] input_36 = __VERIFIER_nondet_uchar() [L332] input_37 = __VERIFIER_nondet_uchar() [L333] input_38 = __VERIFIER_nondet_uchar() [L334] input_39 = __VERIFIER_nondet_uint() [L335] input_40 = __VERIFIER_nondet_uint() [L336] input_41 = __VERIFIER_nondet_uchar() [L337] input_42 = __VERIFIER_nondet_uchar() [L338] input_43 = __VERIFIER_nondet_uchar() [L339] input_44 = __VERIFIER_nondet_uint() [L340] input_45 = __VERIFIER_nondet_uint() [L341] input_46 = __VERIFIER_nondet_uchar() [L342] input_47 = __VERIFIER_nondet_uchar() [L343] input_48 = __VERIFIER_nondet_uchar() [L344] input_49 = __VERIFIER_nondet_uchar() [L345] input_50 = __VERIFIER_nondet_uchar() [L346] input_51 = __VERIFIER_nondet_uchar() [L347] input_52 = __VERIFIER_nondet_uchar() [L348] input_53 = __VERIFIER_nondet_uchar() [L349] input_54 = __VERIFIER_nondet_uchar() [L350] input_55 = __VERIFIER_nondet_uchar() [L351] input_56 = __VERIFIER_nondet_uchar() [L352] input_57 = __VERIFIER_nondet_uchar() [L353] input_58 = __VERIFIER_nondet_uchar() [L354] input_59 = __VERIFIER_nondet_uchar() [L355] input_60 = __VERIFIER_nondet_uchar() [L356] input_61 = __VERIFIER_nondet_uchar() [L357] input_62 = __VERIFIER_nondet_uchar() [L358] input_63 = __VERIFIER_nondet_uchar() [L359] input_64 = __VERIFIER_nondet_uchar() [L360] input_65 = __VERIFIER_nondet_uchar() [L361] input_66 = __VERIFIER_nondet_uchar() [L362] input_67 = __VERIFIER_nondet_uchar() [L363] input_68 = __VERIFIER_nondet_uchar() [L364] input_69 = __VERIFIER_nondet_uchar() [L365] input_70 = __VERIFIER_nondet_uint() [L366] input_71 = __VERIFIER_nondet_uint() [L367] input_72 = __VERIFIER_nondet_uint() [L368] input_73 = __VERIFIER_nondet_uint() [L369] input_74 = __VERIFIER_nondet_uchar() [L370] input_75 = __VERIFIER_nondet_uchar() [L371] input_76 = __VERIFIER_nondet_uint() [L372] input_77 = __VERIFIER_nondet_uint() [L373] input_78 = __VERIFIER_nondet_uint() [L374] input_79 = __VERIFIER_nondet_uint() [L375] input_80 = __VERIFIER_nondet_uchar() [L376] input_81 = __VERIFIER_nondet_uchar() [L377] input_82 = __VERIFIER_nondet_uchar() [L378] input_83 = __VERIFIER_nondet_uchar() [L379] input_84 = __VERIFIER_nondet_uint() [L380] input_85 = __VERIFIER_nondet_uint() [L381] input_86 = __VERIFIER_nondet_uint() [L382] input_87 = __VERIFIER_nondet_uint() [L383] input_88 = __VERIFIER_nondet_uchar() [L384] input_89 = __VERIFIER_nondet_uchar() [L387] SORT_1 var_93_arg_0 = state_91; [L388] SORT_1 var_93 = ~var_93_arg_0; [L389] SORT_1 var_99_arg_0 = state_97; [L390] SORT_7 var_99_arg_1 = state_95; [L391] SORT_7 var_99_arg_2 = input_19; [L392] SORT_7 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L393] SORT_7 var_100_arg_0 = var_99; [L394] SORT_1 var_100 = var_100_arg_0 >> 20; [L395] SORT_1 var_101_arg_0 = var_100; [L396] SORT_1 var_101 = ~var_101_arg_0; [L397] SORT_7 var_102_arg_0 = var_99; [L398] SORT_1 var_102 = var_102_arg_0 >> 22; [L399] SORT_1 var_103_arg_0 = var_101; [L400] SORT_1 var_103_arg_1 = var_102; [L401] SORT_1 var_103 = var_103_arg_0 & var_103_arg_1; [L402] SORT_1 var_104_arg_0 = var_103; [L403] SORT_1 var_104_arg_1 = input_17; [L404] SORT_1 var_104 = var_104_arg_0 | var_104_arg_1; [L405] var_104 = var_104 & mask_SORT_1 [L406] SORT_1 var_107_arg_0 = state_97; [L407] SORT_7 var_107_arg_1 = state_105; [L408] SORT_7 var_107_arg_2 = input_19; [L409] SORT_7 var_107 = var_107_arg_0 ? var_107_arg_1 : var_107_arg_2; [L410] SORT_7 var_108_arg_0 = var_107; [L411] SORT_1 var_108 = var_108_arg_0 >> 20; [L412] SORT_1 var_109_arg_0 = var_108; [L413] SORT_1 var_109 = ~var_109_arg_0; [L414] SORT_7 var_110_arg_0 = var_107; [L415] SORT_1 var_110 = var_110_arg_0 >> 22; [L416] SORT_1 var_111_arg_0 = var_109; [L417] SORT_1 var_111_arg_1 = var_110; [L418] SORT_1 var_111 = var_111_arg_0 & var_111_arg_1; [L419] SORT_1 var_112_arg_0 = var_111; [L420] SORT_1 var_112_arg_1 = input_17; [L421] SORT_1 var_112 = var_112_arg_0 | var_112_arg_1; [L422] var_112 = var_112 & mask_SORT_1 [L423] SORT_1 var_113_arg_0 = var_104; [L424] SORT_1 var_113_arg_1 = var_112; [L425] SORT_1 var_113 = var_113_arg_0 == var_113_arg_1; [L426] SORT_1 var_114_arg_0 = var_93; [L427] SORT_1 var_114_arg_1 = var_113; [L428] SORT_1 var_114 = var_114_arg_0 | var_114_arg_1; [L429] SORT_1 var_118_arg_0 = var_114; [L430] SORT_1 var_118 = ~var_118_arg_0; [L431] SORT_1 var_119_arg_0 = var_117; [L432] SORT_1 var_119_arg_1 = var_118; [L433] SORT_1 var_119 = var_119_arg_0 & var_119_arg_1; [L434] var_119 = var_119 & mask_SORT_1 [L435] SORT_1 bad_120_arg_0 = var_119; [L436] CALL __VERIFIER_assert(!(bad_120_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: 0.8s, 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: 0.1s 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 [2022-11-26 00:12:11,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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_a1200250-958f-45f6-9411-551ed7fdf6d5/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 ec2e645b3322e9e18b354a0ed429ba851421510da82c5d51615a96c905ed7052 --- 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 [2022-11-26 00:12:14,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:12:14,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:12:14,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:12:14,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:12:14,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:12:14,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:12:14,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:12:14,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:12:14,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:12:14,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:12:14,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:12:14,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:12:14,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:12:14,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:12:14,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:12:14,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:12:14,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:12:14,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:12:14,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:12:14,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:12:14,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:12:14,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:12:14,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:12:14,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:12:14,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:12:14,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:12:14,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:12:14,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:12:14,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:12:14,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:12:14,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:12:14,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:12:14,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:12:14,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:12:14,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:12:14,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:12:14,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:12:14,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:12:14,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:12:14,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:12:14,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-26 00:12:14,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:12:14,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:12:14,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:12:14,299 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:12:14,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:12:14,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:12:14,301 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:12:14,301 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:12:14,301 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:12:14,302 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:12:14,303 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:12:14,303 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:12:14,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:12:14,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:12:14,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:12:14,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:12:14,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:12:14,305 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:12:14,306 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:12:14,306 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:12:14,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:12:14,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:12:14,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:12:14,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:12:14,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:12:14,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:12:14,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:12:14,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:12:14,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:12:14,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:12:14,309 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:12:14,309 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:12:14,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:12:14,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:12:14,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:12:14,311 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_a1200250-958f-45f6-9411-551ed7fdf6d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2e645b3322e9e18b354a0ed429ba851421510da82c5d51615a96c905ed7052 [2022-11-26 00:12:14,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:12:14,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:12:14,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:12:14,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:12:14,769 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:12:14,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c [2022-11-26 00:12:17,987 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:12:18,461 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:12:18,463 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c [2022-11-26 00:12:18,492 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/data/90906271f/def34ab21a2f41c0a6123fd4460dd53b/FLAG69206ce4c [2022-11-26 00:12:18,507 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/data/90906271f/def34ab21a2f41c0a6123fd4460dd53b [2022-11-26 00:12:18,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:12:18,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:12:18,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:12:18,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:12:18,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:12:18,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c8f151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18, skipping insertion in model container [2022-11-26 00:12:18,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:12:18,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:12:18,867 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_a1200250-958f-45f6-9411-551ed7fdf6d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c[1107,1120] [2022-11-26 00:12:19,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:12:19,446 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:12:19,458 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_a1200250-958f-45f6-9411-551ed7fdf6d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal185.c[1107,1120] [2022-11-26 00:12:19,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:12:19,737 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:12:19,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19 WrapperNode [2022-11-26 00:12:19,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:12:19,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:12:19,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:12:19,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:12:19,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:19,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:19,999 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3467 [2022-11-26 00:12:19,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:12:20,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:12:20,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:12:20,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:12:20,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:20,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:20,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:20,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:20,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:20,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:20,130 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:20,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:20,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:12:20,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:12:20,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:12:20,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:12:20,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (1/1) ... [2022-11-26 00:12:20,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:12:20,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:12:20,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:12:20,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:12:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:12:20,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:12:21,098 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:12:21,099 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:12:27,750 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:12:27,757 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:12:27,774 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:12:27,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:27 BoogieIcfgContainer [2022-11-26 00:12:27,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:12:27,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:12:27,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:12:27,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:12:27,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:12:18" (1/3) ... [2022-11-26 00:12:27,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2606b1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:12:27, skipping insertion in model container [2022-11-26 00:12:27,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:19" (2/3) ... [2022-11-26 00:12:27,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2606b1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:12:27, skipping insertion in model container [2022-11-26 00:12:27,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:27" (3/3) ... [2022-11-26 00:12:27,785 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal185.c [2022-11-26 00:12:27,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:12:27,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:12:27,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:12:27,864 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;@26156c2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:12:27,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:12:27,868 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) [2022-11-26 00:12:27,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:12:27,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:27,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:12:27,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:12:27,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:27,880 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-26 00:12:27,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:12:27,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196379236] [2022-11-26 00:12:27,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:27,893 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 [2022-11-26 00:12:27,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:12:27,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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) [2022-11-26 00:12:27,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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 [2022-11-26 00:12:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:28,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-26 00:12:28,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:12:28,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:28,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:12:28,890 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:12:28,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196379236] [2022-11-26 00:12:28,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196379236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:28,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:28,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:12:28,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670144798] [2022-11-26 00:12:28,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:28,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:12:28,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:12:28,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:12:28,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:12:28,936 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) [2022-11-26 00:12:29,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:29,704 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-26 00:12:29,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:12:29,708 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 [2022-11-26 00:12:29,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:29,716 INFO L225 Difference]: With dead ends: 20 [2022-11-26 00:12:29,718 INFO L226 Difference]: Without dead ends: 11 [2022-11-26 00:12:29,721 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 [2022-11-26 00:12:29,725 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:29,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:12:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-26 00:12:29,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-26 00:12:29,764 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) [2022-11-26 00:12:29,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-26 00:12:29,766 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-26 00:12:29,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:29,767 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-26 00:12:29,767 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) [2022-11-26 00:12:29,767 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-26 00:12:29,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:12:29,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:29,768 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:29,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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 [2022-11-26 00:12:29,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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 [2022-11-26 00:12:29,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:12:29,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:29,983 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-26 00:12:29,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:12:29,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879933470] [2022-11-26 00:12:29,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:29,990 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 [2022-11-26 00:12:29,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:12:29,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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) [2022-11-26 00:12:30,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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 [2022-11-26 00:12:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:31,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-26 00:12:32,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:12:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:32,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:12:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:33,144 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:12:33,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879933470] [2022-11-26 00:12:33,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879933470] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:12:33,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [428844734] [2022-11-26 00:12:33,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:33,145 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:12:33,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:12:33,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:12:33,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-26 00:12:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:37,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-26 00:12:37,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:12:37,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:37,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:12:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:37,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [428844734] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:12:37,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246989704] [2022-11-26 00:12:37,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:37,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:12:37,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:12:37,867 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:12:37,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:12:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:39,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-26 00:12:39,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:12:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:39,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:12:40,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:40,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246989704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:12:40,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:12:40,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 11 [2022-11-26 00:12:40,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145133958] [2022-11-26 00:12:40,197 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:12:40,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:12:40,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:12:40,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:12:40,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:12:40,201 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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) [2022-11-26 00:12:41,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:41,945 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-26 00:12:41,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:12:41,946 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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 [2022-11-26 00:12:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:41,946 INFO L225 Difference]: With dead ends: 16 [2022-11-26 00:12:41,947 INFO L226 Difference]: Without dead ends: 14 [2022-11-26 00:12:41,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:12:41,948 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:41,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 23 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:12:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-26 00:12:41,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-26 00:12:41,953 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) [2022-11-26 00:12:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-26 00:12:41,953 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-26 00:12:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:41,954 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-26 00:12:41,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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) [2022-11-26 00:12:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-26 00:12:41,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:12:41,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:41,955 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-26 00:12:41,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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)] Forceful destruction successful, exit code 0 [2022-11-26 00:12:42,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-26 00:12:42,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:12:42,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:12:42,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:12:42,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:42,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-26 00:12:42,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:12:42,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624011600] [2022-11-26 00:12:42,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:12:42,587 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 [2022-11-26 00:12:42,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:12:42,588 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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) [2022-11-26 00:12:42,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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 [2022-11-26 00:12:45,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-26 00:12:45,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:12:45,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 6126 conjuncts, 150 conjunts are in the unsatisfiable core [2022-11-26 00:12:45,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:12:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:46,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:13:31,902 WARN L233 SmtUtils]: Spent 25.70s on a formula simplification. DAG size of input: 454 DAG size of output: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:13:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:13:34,722 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:13:34,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624011600] [2022-11-26 00:13:34,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624011600] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:13:34,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [872800839] [2022-11-26 00:13:34,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:13:34,724 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:13:34,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:13:34,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:13:34,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-26 00:13:41,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-26 00:13:41,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:13:41,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 6126 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-26 00:13:41,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:13:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:13:45,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:14:08,562 WARN L233 SmtUtils]: Spent 7.38s on a formula simplification. DAG size of input: 271 DAG size of output: 127 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:14:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:14,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [872800839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:14:14,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692627726] [2022-11-26 00:14:14,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:14:14,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:14:14,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:14:14,218 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:14:14,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:14:16,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-26 00:14:16,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:14:16,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 6126 conjuncts, 157 conjunts are in the unsatisfiable core [2022-11-26 00:14:16,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:14:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:18,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:15:08,398 WARN L233 SmtUtils]: Spent 20.54s on a formula simplification. DAG size of input: 362 DAG size of output: 134 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:15:10,095 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:10,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692627726] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:15:10,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:15:10,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 21 [2022-11-26 00:15:10,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191378927] [2022-11-26 00:15:10,096 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:15:10,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-26 00:15:10,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:10,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-26 00:15:10,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=340, Unknown=5, NotChecked=0, Total=420 [2022-11-26 00:15:10,099 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 21 states have internal predecessors, (39), 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) [2022-11-26 00:15:14,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:14,932 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-26 00:15:14,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:15:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 21 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:15:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:14,933 INFO L225 Difference]: With dead ends: 19 [2022-11-26 00:15:14,933 INFO L226 Difference]: Without dead ends: 17 [2022-11-26 00:15:14,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 76.5s TimeCoverageRelationStatistics Valid=123, Invalid=522, Unknown=5, NotChecked=0, Total=650 [2022-11-26 00:15:14,935 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:14,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 32 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-26 00:15:14,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-26 00:15:14,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-26 00:15:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-26 00:15:14,940 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-26 00:15:14,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:14,940 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-26 00:15:14,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 21 states have internal predecessors, (39), 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) [2022-11-26 00:15:14,941 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-26 00:15:14,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:15:14,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:14,941 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-26 00:15:14,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:15,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:15,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:15,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:15:15,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:15:15,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:15,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-26 00:15:15,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:15,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861414558] [2022-11-26 00:15:15,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:15:15,553 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 [2022-11-26 00:15:15,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:15,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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) [2022-11-26 00:15:15,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1200250-958f-45f6-9411-551ed7fdf6d5/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 (9)] Waiting until timeout for monitored process [2022-11-26 00:15:20,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-26 00:15:20,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:15:20,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 9058 conjuncts, 1055 conjunts are in the unsatisfiable core [2022-11-26 00:15:20,845 INFO L286 TraceCheckSpWp]: Computing forward predicates...