./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9 --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 98e7eedcdf033c8727ad68c9755fbd9406747e7d7f7209ac82b695f1bd3a1f81 --- 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-6b4ec56 [2022-11-20 21:10:02,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:10:02,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:10:02,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:10:02,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:10:02,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:10:02,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:10:02,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:10:02,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:10:02,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:10:02,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:10:02,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:10:02,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:10:02,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:10:02,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:10:02,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:10:02,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:10:02,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:10:02,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:10:02,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:10:02,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:10:02,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:10:02,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:10:02,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:10:02,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:10:02,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:10:02,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:10:02,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:10:02,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:10:02,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:10:02,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:10:02,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:10:02,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:10:02,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:10:02,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:10:02,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:10:02,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:10:02,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:10:02,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:10:02,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:10:02,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:10:02,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 21:10:02,614 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:10:02,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:10:02,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:10:02,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:10:02,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:10:02,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:10:02,616 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:10:02,616 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:10:02,617 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:10:02,617 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:10:02,617 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:10:02,617 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:10:02,617 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:10:02,618 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:10:02,618 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:10:02,618 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:10:02,618 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:10:02,619 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:10:02,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:10:02,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:10:02,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:10:02,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:10:02,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:10:02,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:10:02,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:10:02,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:10:02,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:10:02,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:10:02,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:10:02,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:10:02,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:10:02,622 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:10:02,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:10:02,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:10:02,623 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:10:02,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:10:02,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:10:02,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:10:02,628 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_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98e7eedcdf033c8727ad68c9755fbd9406747e7d7f7209ac82b695f1bd3a1f81 [2022-11-20 21:10:02,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:10:02,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:10:02,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:10:02,959 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:10:02,960 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:10:02,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c [2022-11-20 21:10:06,181 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:10:06,589 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:10:06,591 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c [2022-11-20 21:10:06,612 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/data/73d42d473/235901a7e4614eb092b4d765ee951380/FLAGf6955fdcd [2022-11-20 21:10:06,630 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/data/73d42d473/235901a7e4614eb092b4d765ee951380 [2022-11-20 21:10:06,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:10:06,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:10:06,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:10:06,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:10:06,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:10:06,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:10:06" (1/1) ... [2022-11-20 21:10:06,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35901cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:06, skipping insertion in model container [2022-11-20 21:10:06,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:10:06" (1/1) ... [2022-11-20 21:10:06,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:10:06,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:10:06,922 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_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c[1107,1120] [2022-11-20 21:10:07,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:10:07,486 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:10:07,498 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_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c[1107,1120] [2022-11-20 21:10:07,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:10:07,706 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:10:07,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07 WrapperNode [2022-11-20 21:10:07,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:10:07,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:10:07,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:10:07,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:10:07,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:07,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:07,870 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2485 [2022-11-20 21:10:07,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:10:07,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:10:07,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:10:07,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:10:07,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:07,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:07,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:07,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:08,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:08,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:08,038 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:08,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:08,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:10:08,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:10:08,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:10:08,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:10:08,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (1/1) ... [2022-11-20 21:10:08,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:10:08,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:10:08,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:10:08,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:10:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:10:08,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:10:08,795 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:10:08,798 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:12:35,473 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:12:35,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:12:35,512 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 21:12:35,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:12:35 BoogieIcfgContainer [2022-11-20 21:12:35,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:12:35,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:12:35,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:12:35,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:12:35,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:10:06" (1/3) ... [2022-11-20 21:12:35,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3622dfaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:12:35, skipping insertion in model container [2022-11-20 21:12:35,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:07" (2/3) ... [2022-11-20 21:12:35,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3622dfaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:12:35, skipping insertion in model container [2022-11-20 21:12:35,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:12:35" (3/3) ... [2022-11-20 21:12:35,523 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c [2022-11-20 21:12:35,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:12:35,543 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:12:35,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:12:35,597 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;@32c6ec0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:12:35,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 21:12:35,602 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) [2022-11-20 21:12:35,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 21:12:35,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:12:35,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 21:12:35,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:12:35,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:12:35,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-20 21:12:35,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:12:35,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025451881] [2022-11-20 21:12:35,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:12:35,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:12:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 21:12:36,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 21:12:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 21:12:36,469 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 21:12:36,471 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 21:12:36,472 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 21:12:36,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:12:36,479 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 21:12:36,484 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:12:36,536 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 21:12:36,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:12:36 BoogieIcfgContainer [2022-11-20 21:12:36,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:12:36,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:12:36,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:12:36,562 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:12:36,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:12:35" (3/4) ... [2022-11-20 21:12:36,567 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 21:12:36,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:12:36,568 INFO L158 Benchmark]: Toolchain (without parser) took 149930.11ms. Allocated memory was 119.5MB in the beginning and 943.7MB in the end (delta: 824.2MB). Free memory was 72.8MB in the beginning and 538.2MB in the end (delta: -465.4MB). Peak memory consumption was 362.4MB. Max. memory is 16.1GB. [2022-11-20 21:12:36,569 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory was 88.9MB in the beginning and 88.9MB in the end (delta: 72.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:12:36,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1064.35ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 72.8MB in the beginning and 83.6MB in the end (delta: -10.7MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2022-11-20 21:12:36,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 162.69ms. Allocated memory is still 148.9MB. Free memory was 83.6MB in the beginning and 61.2MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 21:12:36,576 INFO L158 Benchmark]: Boogie Preprocessor took 219.53ms. Allocated memory is still 148.9MB. Free memory was 61.2MB in the beginning and 90.9MB in the end (delta: -29.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-20 21:12:36,577 INFO L158 Benchmark]: RCFGBuilder took 147423.17ms. Allocated memory was 148.9MB in the beginning and 943.7MB in the end (delta: 794.8MB). Free memory was 90.1MB in the beginning and 616.9MB in the end (delta: -526.7MB). Peak memory consumption was 574.7MB. Max. memory is 16.1GB. [2022-11-20 21:12:36,578 INFO L158 Benchmark]: TraceAbstraction took 1042.84ms. Allocated memory is still 943.7MB. Free memory was 615.8MB in the beginning and 538.2MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2022-11-20 21:12:36,579 INFO L158 Benchmark]: Witness Printer took 5.66ms. Allocated memory is still 943.7MB. Free memory was 538.2MB in the beginning and 538.2MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:12:36,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory was 88.9MB in the beginning and 88.9MB in the end (delta: 72.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1064.35ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 72.8MB in the beginning and 83.6MB in the end (delta: -10.7MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 162.69ms. Allocated memory is still 148.9MB. Free memory was 83.6MB in the beginning and 61.2MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 219.53ms. Allocated memory is still 148.9MB. Free memory was 61.2MB in the beginning and 90.9MB in the end (delta: -29.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * RCFGBuilder took 147423.17ms. Allocated memory was 148.9MB in the beginning and 943.7MB in the end (delta: 794.8MB). Free memory was 90.1MB in the beginning and 616.9MB in the end (delta: -526.7MB). Peak memory consumption was 574.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1042.84ms. Allocated memory is still 943.7MB. Free memory was 615.8MB in the beginning and 538.2MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * Witness Printer took 5.66ms. Allocated memory is still 943.7MB. Free memory was 538.2MB in the beginning and 538.2MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 372, overapproximation of bitwiseOr at line 346, overapproximation of bitwiseAnd at line 243. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 3); [L32] const SORT_6 msb_SORT_6 = (SORT_6)1 << (3 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 4); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (4 - 1); [L37] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 8); [L38] const SORT_16 msb_SORT_16 = (SORT_16)1 << (8 - 1); [L40] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 7); [L41] const SORT_21 msb_SORT_21 = (SORT_21)1 << (7 - 1); [L43] const SORT_21 var_22 = 1; [L44] const SORT_21 var_28 = 0; [L45] const SORT_21 var_32 = 2; [L46] const SORT_21 var_35 = 4; [L47] const SORT_21 var_38 = 64; [L48] const SORT_3 var_45 = 1; [L49] const SORT_3 var_49 = 0; [L50] const SORT_6 var_134 = 0; [L51] const SORT_21 var_728 = 8; [L52] const SORT_21 var_748 = 16; [L53] const SORT_21 var_763 = 32; [L55] SORT_1 input_2; [L56] SORT_3 input_4; [L57] SORT_3 input_5; [L58] SORT_6 input_7; [L59] SORT_3 input_8; [L60] SORT_3 input_9; [L61] SORT_3 input_10; [L62] SORT_3 input_11; [L63] SORT_12 input_13; [L64] SORT_3 input_14; [L65] SORT_3 input_15; [L66] SORT_16 input_17; [L67] SORT_3 input_18; [L68] SORT_3 input_19; [L69] SORT_3 input_20; [L70] SORT_3 input_356; [L71] SORT_3 input_378; [L72] SORT_3 input_393; [L73] SORT_3 input_408; [L74] SORT_3 input_423; [L75] SORT_3 input_438; [L76] SORT_3 input_453; [L77] SORT_3 input_468; [L78] SORT_3 input_483; [L79] SORT_3 input_498; [L80] SORT_3 input_513; [L81] SORT_3 input_528; [L82] SORT_3 input_543; [L83] SORT_3 input_558; [L84] SORT_3 input_573; [L85] SORT_3 input_588; [L86] SORT_3 input_604; [L87] SORT_3 input_606; [L88] SORT_3 input_608; [L89] SORT_3 input_610; [L90] SORT_3 input_612; [L91] SORT_3 input_614; [L92] SORT_3 input_616; [L93] SORT_3 input_618; [L94] SORT_3 input_623; [L95] SORT_21 input_664; [L96] SORT_21 input_665; [L97] SORT_21 input_666; [L98] SORT_21 input_667; [L99] SORT_21 input_670; [L100] SORT_21 input_674; [L101] SORT_21 input_678; [L102] SORT_21 input_686; [L103] SORT_21 input_690; [L104] SORT_21 input_692; [L105] SORT_21 input_696; [L106] SORT_21 input_699; [L107] SORT_21 input_703; [L108] SORT_21 input_708; [L109] SORT_21 input_712; [L110] SORT_21 input_717; [L111] SORT_21 input_719; [L112] SORT_21 input_720; [L113] SORT_21 input_722; [L114] SORT_21 input_726; [L115] SORT_21 input_732; [L116] SORT_21 input_739; [L117] SORT_21 input_740; [L118] SORT_21 input_742; [L119] SORT_21 input_746; [L120] SORT_21 input_752; [L121] SORT_21 input_754; [L122] SORT_21 input_755; [L123] SORT_21 input_757; [L124] SORT_21 input_761; [L125] SORT_21 input_767; [L126] SORT_21 input_771; [L127] SORT_21 input_776; [L128] SORT_21 input_778; [L129] SORT_21 input_784; [L130] SORT_21 input_796; [L131] SORT_3 input_801; [L132] SORT_3 input_810; [L133] SORT_3 input_829; [L134] SORT_3 input_836; [L135] SORT_3 input_847; [L136] SORT_3 input_853; [L137] SORT_3 input_859; [L138] SORT_3 input_865; [L139] SORT_3 input_871; [L140] SORT_3 input_877; [L141] SORT_3 input_883; [L142] SORT_3 input_889; [L143] SORT_3 input_895; [L144] SORT_3 input_901; [L145] SORT_3 input_907; [L146] SORT_3 input_913; [L147] SORT_3 input_919; [L149] SORT_21 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L150] SORT_21 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L151] SORT_3 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L152] SORT_3 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L153] SORT_3 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L154] SORT_3 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L155] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L156] SORT_3 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L157] SORT_3 state_82 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L158] SORT_3 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L159] SORT_3 state_102 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L160] SORT_3 state_104 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L161] SORT_3 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L162] SORT_3 state_112 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L163] SORT_3 state_117 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L164] SORT_3 state_120 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L165] SORT_3 state_130 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L166] SORT_3 state_137 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L167] SORT_3 state_140 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L168] SORT_3 state_149 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L169] SORT_3 state_154 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L170] SORT_3 state_157 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L171] SORT_3 state_169 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L172] SORT_3 state_179 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L173] SORT_3 state_184 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L174] SORT_3 state_187 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L175] SORT_3 state_196 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L176] SORT_3 state_209 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L177] SORT_3 state_222 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L179] SORT_21 init_24_arg_1 = var_22; [L180] state_23 = init_24_arg_1 [L181] SORT_21 init_27_arg_1 = var_22; [L182] state_26 = init_27_arg_1 [L183] SORT_3 init_51_arg_1 = var_49; [L184] state_50 = init_51_arg_1 [L185] SORT_3 init_53_arg_1 = var_49; [L186] state_52 = init_53_arg_1 [L187] SORT_3 init_55_arg_1 = var_49; [L188] state_54 = init_55_arg_1 [L189] SORT_3 init_59_arg_1 = var_49; [L190] state_58 = init_59_arg_1 [L191] SORT_3 init_63_arg_1 = var_49; [L192] state_62 = init_63_arg_1 [L193] SORT_3 init_67_arg_1 = var_49; [L194] state_66 = init_67_arg_1 [L195] SORT_3 init_83_arg_1 = var_49; [L196] state_82 = init_83_arg_1 [L197] SORT_3 init_100_arg_1 = var_49; [L198] state_99 = init_100_arg_1 [L199] SORT_3 init_103_arg_1 = var_49; [L200] state_102 = init_103_arg_1 [L201] SORT_3 init_105_arg_1 = var_49; [L202] state_104 = init_105_arg_1 [L203] SORT_3 init_109_arg_1 = var_49; [L204] state_108 = init_109_arg_1 [L205] SORT_3 init_113_arg_1 = var_49; [L206] state_112 = init_113_arg_1 [L207] SORT_3 init_118_arg_1 = var_49; [L208] state_117 = init_118_arg_1 [L209] SORT_3 init_121_arg_1 = var_49; [L210] state_120 = init_121_arg_1 [L211] SORT_3 init_131_arg_1 = var_49; [L212] state_130 = init_131_arg_1 [L213] SORT_3 init_138_arg_1 = var_49; [L214] state_137 = init_138_arg_1 [L215] SORT_3 init_141_arg_1 = var_49; [L216] state_140 = init_141_arg_1 [L217] SORT_3 init_150_arg_1 = var_49; [L218] state_149 = init_150_arg_1 [L219] SORT_3 init_155_arg_1 = var_49; [L220] state_154 = init_155_arg_1 [L221] SORT_3 init_158_arg_1 = var_49; [L222] state_157 = init_158_arg_1 [L223] SORT_3 init_170_arg_1 = var_49; [L224] state_169 = init_170_arg_1 [L225] SORT_3 init_180_arg_1 = var_49; [L226] state_179 = init_180_arg_1 [L227] SORT_3 init_185_arg_1 = var_49; [L228] state_184 = init_185_arg_1 [L229] SORT_3 init_188_arg_1 = var_49; [L230] state_187 = init_188_arg_1 [L231] SORT_3 init_197_arg_1 = var_49; [L232] state_196 = init_197_arg_1 [L233] SORT_3 init_210_arg_1 = var_49; [L234] state_209 = init_210_arg_1 [L235] SORT_3 init_223_arg_1 = var_49; [L236] state_222 = init_223_arg_1 VAL [init_100_arg_1=0, init_103_arg_1=0, init_105_arg_1=0, init_109_arg_1=0, init_113_arg_1=0, init_118_arg_1=0, init_121_arg_1=0, init_131_arg_1=0, init_138_arg_1=0, init_141_arg_1=0, init_150_arg_1=0, init_155_arg_1=0, init_158_arg_1=0, init_170_arg_1=0, init_180_arg_1=0, init_185_arg_1=0, init_188_arg_1=0, init_197_arg_1=0, init_210_arg_1=0, init_223_arg_1=0, init_24_arg_1=1, init_27_arg_1=1, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_59_arg_1=0, init_63_arg_1=0, init_67_arg_1=0, init_83_arg_1=0, mask_SORT_1=3, mask_SORT_12=15, mask_SORT_16=255, mask_SORT_21=127, mask_SORT_3=1, mask_SORT_6=7, msb_SORT_1=2, msb_SORT_12=8, msb_SORT_16=128, msb_SORT_21=64, msb_SORT_3=1, msb_SORT_6=4, state_102=0, state_104=0, state_108=0, state_112=0, state_117=0, state_120=0, state_130=0, state_137=0, state_140=0, state_149=0, state_154=0, state_157=0, state_169=0, state_179=0, state_184=0, state_187=0, state_196=0, state_209=0, state_222=0, state_23=1, state_26=1, state_50=0, state_52=0, state_54=0, state_58=0, state_62=0, state_66=0, state_82=0, state_99=0, var_134=0, var_22=1, var_28=0, var_32=2, var_35=4, var_38=64, var_45=1, var_49=0, var_728=8, var_748=16, var_763=32] [L239] input_2 = __VERIFIER_nondet_uchar() [L240] input_4 = __VERIFIER_nondet_uchar() [L241] input_5 = __VERIFIER_nondet_uchar() [L242] input_7 = __VERIFIER_nondet_uchar() [L243] input_7 = input_7 & mask_SORT_6 [L244] input_8 = __VERIFIER_nondet_uchar() [L245] input_9 = __VERIFIER_nondet_uchar() [L246] input_10 = __VERIFIER_nondet_uchar() [L247] input_11 = __VERIFIER_nondet_uchar() [L248] input_13 = __VERIFIER_nondet_uchar() [L249] input_14 = __VERIFIER_nondet_uchar() [L250] input_15 = __VERIFIER_nondet_uchar() [L251] input_17 = __VERIFIER_nondet_uchar() [L252] input_18 = __VERIFIER_nondet_uchar() [L253] input_19 = __VERIFIER_nondet_uchar() [L254] input_20 = __VERIFIER_nondet_uchar() [L255] input_356 = __VERIFIER_nondet_uchar() [L256] input_378 = __VERIFIER_nondet_uchar() [L257] input_393 = __VERIFIER_nondet_uchar() [L258] input_408 = __VERIFIER_nondet_uchar() [L259] input_423 = __VERIFIER_nondet_uchar() [L260] input_438 = __VERIFIER_nondet_uchar() [L261] input_453 = __VERIFIER_nondet_uchar() [L262] input_468 = __VERIFIER_nondet_uchar() [L263] input_483 = __VERIFIER_nondet_uchar() [L264] input_498 = __VERIFIER_nondet_uchar() [L265] input_513 = __VERIFIER_nondet_uchar() [L266] input_528 = __VERIFIER_nondet_uchar() [L267] input_543 = __VERIFIER_nondet_uchar() [L268] input_558 = __VERIFIER_nondet_uchar() [L269] input_573 = __VERIFIER_nondet_uchar() [L270] input_588 = __VERIFIER_nondet_uchar() [L271] input_604 = __VERIFIER_nondet_uchar() [L272] input_606 = __VERIFIER_nondet_uchar() [L273] input_608 = __VERIFIER_nondet_uchar() [L274] input_610 = __VERIFIER_nondet_uchar() [L275] input_612 = __VERIFIER_nondet_uchar() [L276] input_614 = __VERIFIER_nondet_uchar() [L277] input_616 = __VERIFIER_nondet_uchar() [L278] input_618 = __VERIFIER_nondet_uchar() [L279] input_623 = __VERIFIER_nondet_uchar() [L280] input_664 = __VERIFIER_nondet_uchar() [L281] input_665 = __VERIFIER_nondet_uchar() [L282] input_666 = __VERIFIER_nondet_uchar() [L283] input_667 = __VERIFIER_nondet_uchar() [L284] input_670 = __VERIFIER_nondet_uchar() [L285] input_674 = __VERIFIER_nondet_uchar() [L286] input_678 = __VERIFIER_nondet_uchar() [L287] input_686 = __VERIFIER_nondet_uchar() [L288] input_690 = __VERIFIER_nondet_uchar() [L289] input_692 = __VERIFIER_nondet_uchar() [L290] input_696 = __VERIFIER_nondet_uchar() [L291] input_699 = __VERIFIER_nondet_uchar() [L292] input_703 = __VERIFIER_nondet_uchar() [L293] input_708 = __VERIFIER_nondet_uchar() [L294] input_712 = __VERIFIER_nondet_uchar() [L295] input_717 = __VERIFIER_nondet_uchar() [L296] input_719 = __VERIFIER_nondet_uchar() [L297] input_720 = __VERIFIER_nondet_uchar() [L298] input_722 = __VERIFIER_nondet_uchar() [L299] input_726 = __VERIFIER_nondet_uchar() [L300] input_732 = __VERIFIER_nondet_uchar() [L301] input_739 = __VERIFIER_nondet_uchar() [L302] input_740 = __VERIFIER_nondet_uchar() [L303] input_742 = __VERIFIER_nondet_uchar() [L304] input_746 = __VERIFIER_nondet_uchar() [L305] input_752 = __VERIFIER_nondet_uchar() [L306] input_754 = __VERIFIER_nondet_uchar() [L307] input_755 = __VERIFIER_nondet_uchar() [L308] input_757 = __VERIFIER_nondet_uchar() [L309] input_761 = __VERIFIER_nondet_uchar() [L310] input_767 = __VERIFIER_nondet_uchar() [L311] input_771 = __VERIFIER_nondet_uchar() [L312] input_776 = __VERIFIER_nondet_uchar() [L313] input_778 = __VERIFIER_nondet_uchar() [L314] input_784 = __VERIFIER_nondet_uchar() [L315] input_796 = __VERIFIER_nondet_uchar() [L316] input_801 = __VERIFIER_nondet_uchar() [L317] input_810 = __VERIFIER_nondet_uchar() [L318] input_829 = __VERIFIER_nondet_uchar() [L319] input_836 = __VERIFIER_nondet_uchar() [L320] input_847 = __VERIFIER_nondet_uchar() [L321] input_853 = __VERIFIER_nondet_uchar() [L322] input_859 = __VERIFIER_nondet_uchar() [L323] input_865 = __VERIFIER_nondet_uchar() [L324] input_871 = __VERIFIER_nondet_uchar() [L325] input_877 = __VERIFIER_nondet_uchar() [L326] input_883 = __VERIFIER_nondet_uchar() [L327] input_889 = __VERIFIER_nondet_uchar() [L328] input_895 = __VERIFIER_nondet_uchar() [L329] input_901 = __VERIFIER_nondet_uchar() [L330] input_907 = __VERIFIER_nondet_uchar() [L331] input_913 = __VERIFIER_nondet_uchar() [L332] input_919 = __VERIFIER_nondet_uchar() [L335] SORT_21 var_25_arg_0 = state_23; [L336] SORT_21 var_25_arg_1 = var_22; [L337] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L338] SORT_21 var_29_arg_0 = state_26; [L339] SORT_21 var_29_arg_1 = var_28; [L340] SORT_3 var_29 = var_29_arg_0 == var_29_arg_1; [L341] SORT_21 var_30_arg_0 = state_26; [L342] SORT_21 var_30_arg_1 = var_22; [L343] SORT_3 var_30 = var_30_arg_0 == var_30_arg_1; [L344] SORT_3 var_31_arg_0 = var_29; [L345] SORT_3 var_31_arg_1 = var_30; [L346] SORT_3 var_31 = var_31_arg_0 | var_31_arg_1; [L347] SORT_21 var_33_arg_0 = state_26; [L348] SORT_21 var_33_arg_1 = var_32; [L349] SORT_3 var_33 = var_33_arg_0 == var_33_arg_1; [L350] SORT_3 var_34_arg_0 = var_31; [L351] SORT_3 var_34_arg_1 = var_33; [L352] SORT_3 var_34 = var_34_arg_0 | var_34_arg_1; [L353] SORT_21 var_36_arg_0 = state_26; [L354] SORT_21 var_36_arg_1 = var_35; [L355] SORT_3 var_36 = var_36_arg_0 == var_36_arg_1; [L356] SORT_3 var_37_arg_0 = var_34; [L357] SORT_3 var_37_arg_1 = var_36; [L358] SORT_3 var_37 = var_37_arg_0 | var_37_arg_1; [L359] SORT_21 var_39_arg_0 = state_26; [L360] SORT_21 var_39_arg_1 = var_38; [L361] SORT_3 var_39 = var_39_arg_0 == var_39_arg_1; [L362] SORT_3 var_40_arg_0 = var_37; [L363] SORT_3 var_40_arg_1 = var_39; [L364] SORT_3 var_40 = var_40_arg_0 | var_40_arg_1; [L365] SORT_3 var_41_arg_0 = var_25; [L366] SORT_3 var_41_arg_1 = var_40; [L367] SORT_3 var_41 = var_41_arg_0 & var_41_arg_1; [L368] SORT_21 var_42_arg_0 = state_23; [L369] SORT_21 var_42_arg_1 = var_22; [L370] SORT_3 var_42 = var_42_arg_0 == var_42_arg_1; [L371] SORT_3 var_43_arg_0 = var_42; [L372] SORT_3 var_43 = ~var_43_arg_0; [L373] SORT_3 var_44_arg_0 = var_41; [L374] SORT_3 var_44_arg_1 = var_43; [L375] SORT_3 var_44 = var_44_arg_0 | var_44_arg_1; [L376] SORT_3 var_46_arg_0 = var_44; [L377] SORT_3 var_46 = ~var_46_arg_0; [L378] SORT_3 var_47_arg_0 = var_45; [L379] SORT_3 var_47_arg_1 = var_46; [L380] SORT_3 var_47 = var_47_arg_0 & var_47_arg_1; [L381] var_47 = var_47 & mask_SORT_3 [L382] SORT_3 bad_48_arg_0 = var_47; [L383] CALL __VERIFIER_assert(!(bad_48_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s 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 [2022-11-20 21:12:36,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9 --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 98e7eedcdf033c8727ad68c9755fbd9406747e7d7f7209ac82b695f1bd3a1f81 --- 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-6b4ec56 [2022-11-20 21:12:39,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:12:39,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:12:39,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:12:39,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:12:39,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:12:39,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:12:39,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:12:39,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:12:39,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:12:39,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:12:39,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:12:39,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:12:39,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:12:39,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:12:39,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:12:39,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:12:39,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:12:39,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:12:39,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:12:39,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:12:39,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:12:39,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:12:39,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:12:39,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:12:39,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:12:39,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:12:39,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:12:39,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:12:39,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:12:39,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:12:39,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:12:39,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:12:39,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:12:39,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:12:39,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:12:39,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:12:39,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:12:39,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:12:39,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:12:39,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:12:39,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 21:12:39,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:12:39,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:12:39,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:12:39,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:12:39,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:12:39,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:12:39,327 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:12:39,328 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:12:39,328 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:12:39,328 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:12:39,329 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:12:39,329 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:12:39,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:12:39,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:12:39,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:12:39,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:12:39,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:12:39,331 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 21:12:39,331 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 21:12:39,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 21:12:39,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:12:39,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:12:39,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:12:39,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:12:39,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 21:12:39,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:12:39,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:12:39,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:12:39,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:12:39,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:12:39,334 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 21:12:39,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 21:12:39,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:12:39,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:12:39,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 21:12:39,335 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_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98e7eedcdf033c8727ad68c9755fbd9406747e7d7f7209ac82b695f1bd3a1f81 [2022-11-20 21:12:39,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:12:39,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:12:39,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:12:39,755 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:12:39,756 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:12:39,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c [2022-11-20 21:12:42,852 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:12:43,207 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:12:43,207 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c [2022-11-20 21:12:43,241 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/data/3daac48b3/6e8b17e62d6e45d5bb917df212e1685e/FLAG8b90ef5ea [2022-11-20 21:12:43,265 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/data/3daac48b3/6e8b17e62d6e45d5bb917df212e1685e [2022-11-20 21:12:43,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:12:43,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:12:43,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:12:43,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:12:43,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:12:43,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:12:43" (1/1) ... [2022-11-20 21:12:43,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4c05f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:43, skipping insertion in model container [2022-11-20 21:12:43,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:12:43" (1/1) ... [2022-11-20 21:12:43,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:12:43,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:12:43,639 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_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c[1107,1120] [2022-11-20 21:12:44,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:12:44,068 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:12:44,079 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_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c[1107,1120] [2022-11-20 21:12:44,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:12:44,289 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:12:44,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44 WrapperNode [2022-11-20 21:12:44,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:12:44,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:12:44,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:12:44,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:12:44,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,504 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2485 [2022-11-20 21:12:44,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:12:44,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:12:44,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:12:44,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:12:44,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,610 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:12:44,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:12:44,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:12:44,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:12:44,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (1/1) ... [2022-11-20 21:12:44,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:12:44,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:12:44,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:12:44,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:12:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:12:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:12:45,407 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:12:45,409 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:12:49,086 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:12:49,092 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:12:49,092 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 21:12:49,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:12:49 BoogieIcfgContainer [2022-11-20 21:12:49,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:12:49,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:12:49,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:12:49,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:12:49,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:12:43" (1/3) ... [2022-11-20 21:12:49,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dec4c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:12:49, skipping insertion in model container [2022-11-20 21:12:49,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:44" (2/3) ... [2022-11-20 21:12:49,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dec4c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:12:49, skipping insertion in model container [2022-11-20 21:12:49,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:12:49" (3/3) ... [2022-11-20 21:12:49,103 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p4.c [2022-11-20 21:12:49,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:12:49,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:12:49,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:12:49,175 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;@4ba7cd46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:12:49,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 21:12:49,180 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) [2022-11-20 21:12:49,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 21:12:49,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:12:49,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 21:12:49,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:12:49,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:12:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 21:12:49,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:12:49,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497562583] [2022-11-20 21:12:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:12:49,206 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 [2022-11-20 21:12:49,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:12:49,214 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/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) [2022-11-20 21:12:49,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 21:12:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:12:49,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-20 21:12:49,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:12:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:12:50,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:12:50,103 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:12:50,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497562583] [2022-11-20 21:12:50,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497562583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:12:50,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:12:50,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:12:50,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848340218] [2022-11-20 21:12:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:12:50,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:12:50,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:12:50,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:12:50,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:12:50,141 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) [2022-11-20 21:12:50,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:12:50,447 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 21:12:50,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 21:12:50,450 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 [2022-11-20 21:12:50,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:12:50,457 INFO L225 Difference]: With dead ends: 20 [2022-11-20 21:12:50,457 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 21:12:50,460 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 [2022-11-20 21:12:50,463 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:12:50,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 21:12:50,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 21:12:50,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 21:12:50,494 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) [2022-11-20 21:12:50,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 21:12:50,496 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 21:12:50,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:12:50,496 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 21:12:50,497 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) [2022-11-20 21:12:50,497 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 21:12:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 21:12:50,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:12:50,498 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 21:12:50,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 21:12:50,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 21:12:50,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:12:50,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:12:50,711 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 21:12:50,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:12:50,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957357757] [2022-11-20 21:12:50,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:12:50,716 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 [2022-11-20 21:12:50,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:12:50,722 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/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) [2022-11-20 21:12:50,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 21:12:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:12:52,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 229 conjunts are in the unsatisfiable core [2022-11-20 21:12:52,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:12:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:12:58,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:23:46,152 WARN L233 SmtUtils]: Spent 34.60s on a formula simplification. DAG size of input: 1576 DAG size of output: 510 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:23:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:23:48,782 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:23:48,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957357757] [2022-11-20 21:23:48,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957357757] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:23:48,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1862168102] [2022-11-20 21:23:48,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:23:48,783 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 21:23:48,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 21:23:48,790 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 21:23:48,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c345cf6f-9c7f-4bc1-ae85-7d15a4d77e86/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-20 21:23:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:23:51,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 224 conjunts are in the unsatisfiable core [2022-11-20 21:23:51,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:23:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:23:53,948 INFO L328 TraceCheckSpWp]: Computing backward predicates...