./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh --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 d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc --- 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-2329fc7 [2022-12-14 14:25:14,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:25:14,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:25:14,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:25:14,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:25:14,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:25:14,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:25:14,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:25:14,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:25:14,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:25:14,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:25:14,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:25:14,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:25:14,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:25:14,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:25:14,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:25:14,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:25:14,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:25:14,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:25:14,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:25:14,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:25:14,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:25:14,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:25:14,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:25:14,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:25:14,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:25:14,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:25:14,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:25:14,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:25:14,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:25:14,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:25:14,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:25:14,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:25:14,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:25:14,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:25:14,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:25:14,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:25:14,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:25:14,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:25:14,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:25:14,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:25:14,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:25:14,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:25:14,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:25:14,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:25:14,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:25:14,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:25:14,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:25:14,564 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:25:14,564 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:25:14,564 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:25:14,564 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:25:14,564 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:25:14,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:25:14,564 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:25:14,564 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:25:14,564 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:25:14,564 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:25:14,565 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:25:14,565 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:25:14,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:25:14,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:25:14,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:25:14,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:25:14,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:25:14,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:25:14,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:25:14,566 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:25:14,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:25:14,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:25:14,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:25:14,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:25:14,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:25:14,566 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:25:14,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:25:14,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:25:14,567 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:25:14,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:25:14,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:25:14,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:25:14,567 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_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc [2022-12-14 14:25:14,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:25:14,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:25:14,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:25:14,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:25:14,780 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:25:14,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-12-14 14:25:17,334 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:25:17,520 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:25:17,520 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-12-14 14:25:17,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/data/b59c6c7ed/4417f043befe461486d3817eb693155d/FLAG03842e96f [2022-12-14 14:25:17,931 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/data/b59c6c7ed/4417f043befe461486d3817eb693155d [2022-12-14 14:25:17,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:25:17,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:25:17,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:25:17,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:25:17,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:25:17,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:25:17" (1/1) ... [2022-12-14 14:25:17,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183621c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:17, skipping insertion in model container [2022-12-14 14:25:17,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:25:17" (1/1) ... [2022-12-14 14:25:17,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:25:17,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:25:18,057 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_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-12-14 14:25:18,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:25:18,100 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:25:18,107 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_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-12-14 14:25:18,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:25:18,138 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:25:18,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18 WrapperNode [2022-12-14 14:25:18,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:25:18,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:25:18,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:25:18,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:25:18,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,170 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2022-12-14 14:25:18,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:25:18,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:25:18,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:25:18,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:25:18,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,188 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:25:18,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:25:18,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:25:18,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:25:18,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (1/1) ... [2022-12-14 14:25:18,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:25:18,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:25:18,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:25:18,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:25:18,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:25:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:25:18,331 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:25:18,333 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:25:18,610 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:25:18,628 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:25:18,629 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:25:18,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:25:18 BoogieIcfgContainer [2022-12-14 14:25:18,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:25:18,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:25:18,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:25:18,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:25:18,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:25:17" (1/3) ... [2022-12-14 14:25:18,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3a20da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:25:18, skipping insertion in model container [2022-12-14 14:25:18,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:18" (2/3) ... [2022-12-14 14:25:18,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3a20da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:25:18, skipping insertion in model container [2022-12-14 14:25:18,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:25:18" (3/3) ... [2022-12-14 14:25:18,640 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-12-14 14:25:18,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:25:18,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:25:18,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:25:18,700 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;@5bd24418, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:25:18,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:25:18,703 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) [2022-12-14 14:25:18,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:25:18,707 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:25:18,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:25:18,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:25:18,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:25:18,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 14:25:18,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:25:18,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996828243] [2022-12-14 14:25:18,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:18,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:25:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:25:18,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:25:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:25:18,972 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:25:18,974 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:25:18,975 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:25:18,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:25:18,981 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 14:25:18,985 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:25:19,001 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 14:25:19,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:25:19 BoogieIcfgContainer [2022-12-14 14:25:19,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:25:19,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:25:19,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:25:19,010 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:25:19,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:25:18" (3/4) ... [2022-12-14 14:25:19,013 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:25:19,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:25:19,014 INFO L158 Benchmark]: Toolchain (without parser) took 1076.67ms. Allocated memory is still 132.1MB. Free memory was 97.4MB in the beginning and 74.7MB in the end (delta: 22.7MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-12-14 14:25:19,015 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:25:19,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.77ms. Allocated memory is still 132.1MB. Free memory was 97.0MB in the beginning and 83.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 14:25:19,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.01ms. Allocated memory is still 132.1MB. Free memory was 83.6MB in the beginning and 80.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:25:19,016 INFO L158 Benchmark]: Boogie Preprocessor took 20.66ms. Allocated memory is still 132.1MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:25:19,017 INFO L158 Benchmark]: RCFGBuilder took 439.27ms. Allocated memory is still 132.1MB. Free memory was 79.0MB in the beginning and 99.9MB in the end (delta: -20.9MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-12-14 14:25:19,017 INFO L158 Benchmark]: TraceAbstraction took 375.41ms. Allocated memory is still 132.1MB. Free memory was 99.9MB in the beginning and 74.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 14:25:19,017 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 132.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:25:19,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.77ms. Allocated memory is still 132.1MB. Free memory was 97.0MB in the beginning and 83.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.01ms. Allocated memory is still 132.1MB. Free memory was 83.6MB in the beginning and 80.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.66ms. Allocated memory is still 132.1MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.27ms. Allocated memory is still 132.1MB. Free memory was 79.0MB in the beginning and 99.9MB in the end (delta: -20.9MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * TraceAbstraction took 375.41ms. Allocated memory is still 132.1MB. Free memory was 99.9MB in the beginning and 74.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 132.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 135, overapproximation of bitwiseOr at line 133, overapproximation of bitwiseAnd at line 120. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L38] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L44] SORT_1 input_2; [L45] SORT_3 input_4; [L46] SORT_1 input_5; [L47] SORT_1 input_6; [L48] SORT_1 input_29; [L49] SORT_31 input_32; [L50] SORT_31 input_34; [L51] SORT_1 input_36; [L52] SORT_1 input_38; [L53] SORT_1 input_42; [L54] SORT_1 input_44; [L55] SORT_1 input_46; [L56] SORT_1 input_48; [L57] SORT_1 input_50; [L58] SORT_3 input_52; [L59] SORT_1 input_55; [L60] SORT_1 input_59; [L61] SORT_1 input_63; [L62] SORT_1 input_65; [L63] SORT_67 input_68; [L64] SORT_1 input_70; [L65] SORT_1 input_74; [L66] SORT_1 input_81; [L67] SORT_1 input_87; [L69] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 init_9_arg_1 = var_7; [L78] state_8 = init_9_arg_1 [L79] SORT_1 init_15_arg_1 = var_7; [L80] state_14 = init_15_arg_1 [L81] SORT_1 init_26_arg_1 = var_7; [L82] state_25 = init_26_arg_1 [L83] SORT_1 init_28_arg_1 = var_7; [L84] state_27 = init_28_arg_1 [L85] SORT_1 init_41_arg_1 = var_7; [L86] state_40 = init_41_arg_1 [L87] SORT_1 init_58_arg_1 = var_7; [L88] state_57 = init_58_arg_1 [L89] SORT_1 init_62_arg_1 = var_7; [L90] state_61 = init_62_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_67=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L93] input_2 = __VERIFIER_nondet_uchar() [L94] input_4 = __VERIFIER_nondet_uchar() [L95] input_5 = __VERIFIER_nondet_uchar() [L96] input_6 = __VERIFIER_nondet_uchar() [L97] input_29 = __VERIFIER_nondet_uchar() [L98] input_32 = __VERIFIER_nondet_uchar() [L99] input_34 = __VERIFIER_nondet_uchar() [L100] input_36 = __VERIFIER_nondet_uchar() [L101] input_38 = __VERIFIER_nondet_uchar() [L102] input_42 = __VERIFIER_nondet_uchar() [L103] input_44 = __VERIFIER_nondet_uchar() [L104] input_46 = __VERIFIER_nondet_uchar() [L105] input_48 = __VERIFIER_nondet_uchar() [L106] input_50 = __VERIFIER_nondet_uchar() [L107] input_52 = __VERIFIER_nondet_uchar() [L108] input_55 = __VERIFIER_nondet_uchar() [L109] input_59 = __VERIFIER_nondet_uchar() [L110] input_63 = __VERIFIER_nondet_uchar() [L111] input_65 = __VERIFIER_nondet_uchar() [L112] input_68 = __VERIFIER_nondet_ushort() [L113] input_70 = __VERIFIER_nondet_uchar() [L114] input_74 = __VERIFIER_nondet_uchar() [L115] input_81 = __VERIFIER_nondet_uchar() [L116] input_87 = __VERIFIER_nondet_uchar() [L119] SORT_1 var_11_arg_0 = state_8; [L120] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L121] SORT_10 var_11 = var_11_arg_0; [L122] SORT_10 var_13_arg_0 = var_11; [L123] SORT_10 var_13_arg_1 = var_12; [L124] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L125] SORT_1 var_16_arg_0 = state_14; [L126] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L127] SORT_10 var_16 = var_16_arg_0; [L128] SORT_10 var_17_arg_0 = var_16; [L129] SORT_10 var_17_arg_1 = var_12; [L130] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L131] SORT_1 var_18_arg_0 = var_13; [L132] SORT_1 var_18_arg_1 = var_17; [L133] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L134] SORT_1 var_22_arg_0 = var_18; [L135] SORT_1 var_22 = ~var_22_arg_0; [L136] SORT_1 var_23_arg_0 = var_21; [L137] SORT_1 var_23_arg_1 = var_22; [L138] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L139] var_23 = var_23 & mask_SORT_1 [L140] SORT_1 bad_24_arg_0 = var_23; [L141] CALL __VERIFIER_assert(!(bad_24_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: 0.3s, 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, 0.1s 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 [2022-12-14 14:25:19,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh --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 d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc --- 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-2329fc7 [2022-12-14 14:25:20,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:25:20,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:25:20,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:25:20,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:25:20,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:25:20,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:25:20,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:25:20,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:25:20,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:25:20,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:25:20,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:25:20,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:25:20,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:25:20,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:25:20,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:25:20,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:25:20,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:25:20,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:25:20,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:25:20,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:25:20,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:25:20,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:25:20,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:25:20,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:25:20,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:25:20,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:25:20,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:25:20,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:25:20,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:25:20,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:25:20,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:25:20,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:25:20,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:25:20,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:25:20,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:25:20,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:25:20,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:25:20,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:25:20,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:25:20,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:25:20,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 14:25:20,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:25:20,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:25:20,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:25:20,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:25:20,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:25:20,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:25:20,760 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:25:20,760 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:25:20,760 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:25:20,760 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:25:20,760 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:25:20,760 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:25:20,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:25:20,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:25:20,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:25:20,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:25:20,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:25:20,762 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:25:20,762 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:25:20,762 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:25:20,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:25:20,763 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:25:20,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:25:20,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:25:20,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:25:20,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:25:20,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:25:20,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:25:20,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:25:20,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:25:20,765 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:25:20,765 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:25:20,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:25:20,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:25:20,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:25:20,766 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_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc [2022-12-14 14:25:21,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:25:21,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:25:21,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:25:21,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:25:21,022 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:25:21,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-12-14 14:25:23,554 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:25:23,694 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:25:23,695 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-12-14 14:25:23,701 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/data/e40737ca4/3f2cb6778db7446d88e6a9cab0bac579/FLAG0c7f76362 [2022-12-14 14:25:23,712 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/data/e40737ca4/3f2cb6778db7446d88e6a9cab0bac579 [2022-12-14 14:25:23,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:25:23,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:25:23,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:25:23,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:25:23,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:25:23,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:25:23" (1/1) ... [2022-12-14 14:25:23,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee31773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:23, skipping insertion in model container [2022-12-14 14:25:23,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:25:23" (1/1) ... [2022-12-14 14:25:23,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:25:23,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:25:23,889 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_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-12-14 14:25:23,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:25:23,956 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:25:23,967 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_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-12-14 14:25:24,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:25:24,012 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:25:24,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24 WrapperNode [2022-12-14 14:25:24,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:25:24,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:25:24,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:25:24,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:25:24,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,045 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2022-12-14 14:25:24,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:25:24,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:25:24,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:25:24,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:25:24,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,064 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:25:24,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:25:24,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:25:24,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:25:24,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (1/1) ... [2022-12-14 14:25:24,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:25:24,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:25:24,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:25:24,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:25:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:25:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:25:24,213 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:25:24,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:25:24,370 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:25:24,376 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:25:24,376 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:25:24,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:25:24 BoogieIcfgContainer [2022-12-14 14:25:24,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:25:24,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:25:24,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:25:24,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:25:24,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:25:23" (1/3) ... [2022-12-14 14:25:24,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bb0da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:25:24, skipping insertion in model container [2022-12-14 14:25:24,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:25:24" (2/3) ... [2022-12-14 14:25:24,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bb0da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:25:24, skipping insertion in model container [2022-12-14 14:25:24,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:25:24" (3/3) ... [2022-12-14 14:25:24,384 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-12-14 14:25:24,397 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:25:24,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:25:24,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:25:24,440 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;@6cfc5ea4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:25:24,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:25:24,444 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) [2022-12-14 14:25:24,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:25:24,449 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:25:24,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:25:24,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:25:24,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:25:24,454 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 14:25:24,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:25:24,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369355768] [2022-12-14 14:25:24,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:24,464 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 [2022-12-14 14:25:24,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:25:24,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:25:24,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:25:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:25:24,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 14:25:24,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:24,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:24,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:25:24,674 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:25:24,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369355768] [2022-12-14 14:25:24,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369355768] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:25:24,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:25:24,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:25:24,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536279673] [2022-12-14 14:25:24,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:25:24,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:25:24,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:25:24,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:25:24,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:25:24,703 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) [2022-12-14 14:25:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:25:24,755 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 14:25:24,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:25:24,757 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 [2022-12-14 14:25:24,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:25:24,763 INFO L225 Difference]: With dead ends: 20 [2022-12-14 14:25:24,763 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 14:25:24,765 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 [2022-12-14 14:25:24,767 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:25:24,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:25:24,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 14:25:24,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 14:25:24,787 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) [2022-12-14 14:25:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 14:25:24,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 14:25:24,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:25:24,788 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 14:25:24,789 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) [2022-12-14 14:25:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 14:25:24,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:25:24,789 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:25:24,789 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 14:25:24,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:25:24,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:25:24,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:25:24,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:25:24,994 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 14:25:24,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:25:24,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199071431] [2022-12-14 14:25:24,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:24,997 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 [2022-12-14 14:25:24,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:25:25,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:25:25,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:25:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:25:25,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 14:25:25,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:25,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:25,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:25:25,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:25,944 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:25:25,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199071431] [2022-12-14 14:25:25,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199071431] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:25:25,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1032624890] [2022-12-14 14:25:25,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:25,945 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:25:25,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:25:25,964 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:25:25,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 14:25:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:25:26,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 14:25:26,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:26,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:25:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:26,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1032624890] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:25:26,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335444123] [2022-12-14 14:25:26,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:26,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:25:26,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:25:26,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:25:26,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:25:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:25:26,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 14:25:26,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:26,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:26,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:25:27,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:27,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335444123] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:25:27,006 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:25:27,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 14 [2022-12-14 14:25:27,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676968111] [2022-12-14 14:25:27,007 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:25:27,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 14:25:27,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:25:27,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 14:25:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-12-14 14:25:27,009 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2022-12-14 14:25:27,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:25:27,126 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 14:25:27,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:25:27,126 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 14:25:27,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:25:27,127 INFO L225 Difference]: With dead ends: 16 [2022-12-14 14:25:27,127 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 14:25:27,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2022-12-14 14:25:27,128 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:25:27,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 32 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:25:27,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 14:25:27,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 14:25:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:25:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 14:25:27,131 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 14:25:27,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:25:27,131 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 14:25:27,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2022-12-14 14:25:27,132 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 14:25:27,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:25:27,132 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:25:27,132 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 14:25:27,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 14:25:27,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:25:27,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 14:25:27,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:25:27,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:25:27,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:25:27,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 14:25:27,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:25:27,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388745585] [2022-12-14 14:25:27,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:25:27,737 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 [2022-12-14 14:25:27,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:25:27,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:25:27,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 14:25:27,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:25:27,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:25:27,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-14 14:25:27,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:27,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:25:29,004 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:29,004 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:25:29,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388745585] [2022-12-14 14:25:29,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388745585] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:25:29,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [855266356] [2022-12-14 14:25:29,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:25:29,005 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:25:29,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:25:29,006 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:25:29,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 14:25:29,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:25:29,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:25:29,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 62 conjunts are in the unsatisfiable core [2022-12-14 14:25:29,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:29,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:25:30,232 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:30,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [855266356] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:25:30,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926358755] [2022-12-14 14:25:30,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:25:30,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:25:30,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:25:30,234 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:25:30,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 14:25:30,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:25:30,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:25:30,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 57 conjunts are in the unsatisfiable core [2022-12-14 14:25:30,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:30,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:25:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:25:31,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926358755] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:25:31,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:25:31,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 20 [2022-12-14 14:25:31,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563433873] [2022-12-14 14:25:31,737 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:25:31,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 14:25:31,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:25:31,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 14:25:31,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-12-14 14:25:31,739 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 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) [2022-12-14 14:25:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:25:31,990 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-12-14 14:25:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 14:25:31,990 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 14:25:31,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:25:31,991 INFO L225 Difference]: With dead ends: 22 [2022-12-14 14:25:31,991 INFO L226 Difference]: Without dead ends: 20 [2022-12-14 14:25:31,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2022-12-14 14:25:31,993 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:25:31,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 30 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:25:31,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-14 14:25:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-12-14 14:25:31,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-12-14 14:25:31,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-12-14 14:25:31,997 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-12-14 14:25:31,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:25:31,997 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-12-14 14:25:31,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 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) [2022-12-14 14:25:31,997 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-12-14 14:25:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:25:31,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:25:31,997 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-12-14 14:25:32,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-14 14:25:32,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 14:25:32,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 14:25:32,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:25:32,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:25:32,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:25:32,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-12-14 14:25:32,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:25:32,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084332032] [2022-12-14 14:25:32,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:25:32,604 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 [2022-12-14 14:25:32,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:25:32,605 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:25:32,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 14:25:32,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:25:32,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:25:32,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-14 14:25:32,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:33,035 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:25:33,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:25:34,216 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:25:34,216 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:25:34,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084332032] [2022-12-14 14:25:34,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084332032] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:25:34,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [145655514] [2022-12-14 14:25:34,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:25:34,217 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:25:34,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:25:34,218 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:25:34,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-12-14 14:25:34,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:25:34,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:25:34,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 59 conjunts are in the unsatisfiable core [2022-12-14 14:25:34,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 14:25:34,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:25:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 14:25:35,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [145655514] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:25:35,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220053795] [2022-12-14 14:25:35,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:25:35,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:25:35,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:25:35,411 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:25:35,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 14:25:35,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:25:35,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:25:35,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 60 conjunts are in the unsatisfiable core [2022-12-14 14:25:35,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:25:35,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:25:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 14:25:36,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220053795] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:25:36,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:25:36,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7, 6, 8, 7] total 14 [2022-12-14 14:25:36,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723182093] [2022-12-14 14:25:36,438 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:25:36,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 14:25:36,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:25:36,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 14:25:36,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-12-14 14:25:36,439 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:25:36,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:25:36,544 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-12-14 14:25:36,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:25:36,544 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-14 14:25:36,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:25:36,545 INFO L225 Difference]: With dead ends: 18 [2022-12-14 14:25:36,545 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:25:36,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 78 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-12-14 14:25:36,546 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:25:36,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:25:36,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:25:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:25:36,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-12-14 14:25:36,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:25:36,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-12-14 14:25:36,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:25:36,547 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:25:36,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:25:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:25:36,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:25:36,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:25:36,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-14 14:25:36,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 14:25:36,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-12-14 14:25:37,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:25:37,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:25:37,248 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:25:37,248 INFO L895 garLoopResultBuilder]: At program point L91-2(lines 91 220) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8))) (.cse2 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32)))) (or (and (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_57~0#1|) .cse0 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_27~0#1|) .cse1 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_40~0#1|) (= |ULTIMATE.start_main_~state_8~0#1| |ULTIMATE.start_main_~var_7~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_61~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_25~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|) .cse2 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|)) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (exists ((|ULTIMATE.start_main_~var_91_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_91_arg_2~0#1|))))) |ULTIMATE.start_main_~state_40~0#1|)) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_14~0#1|) .cse1 .cse2))) [2022-12-14 14:25:37,248 INFO L899 garLoopResultBuilder]: For program point L91-3(lines 91 220) no Hoare annotation was computed. [2022-12-14 14:25:37,248 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:25:37,248 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 222) the Hoare annotation is: false [2022-12-14 14:25:37,248 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 14:25:37,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 14:25:37,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-14 14:25:37,249 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 14:25:37,249 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 14:25:37,249 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-14 14:25:37,251 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2022-12-14 14:25:37,252 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:25:37,257 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] [2022-12-14 14:25:37,263 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] [2022-12-14 14:25:37,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:25:37 BoogieIcfgContainer [2022-12-14 14:25:37,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:25:37,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:25:37,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:25:37,265 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:25:37,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:25:24" (3/4) ... [2022-12-14 14:25:37,268 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:25:37,277 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 14:25:37,277 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 14:25:37,277 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:25:37,297 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((var_7 == state_57 && 1bv8 == mask_SORT_1) && var_7 == state_27) && var_7 == 0bv8) && var_7 == state_40) && state_8 == var_7) && var_7 == state_61) && var_7 == state_25) && 1bv8 == var_21) && var_12 == 0bv32) && 0bv8 == state_14) || (((((1bv8 == mask_SORT_1 && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom16To32(mask_SORT_1), ~zero_extendFrom16To32(~zero_extendFrom16To32(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == state_40)) && var_7 == state_14) && var_7 == 0bv8) && var_12 == 0bv32) [2022-12-14 14:25:37,318 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:25:37,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:25:37,319 INFO L158 Benchmark]: Toolchain (without parser) took 13603.73ms. Allocated memory was 60.8MB in the beginning and 134.2MB in the end (delta: 73.4MB). Free memory was 29.3MB in the beginning and 65.8MB in the end (delta: -36.6MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2022-12-14 14:25:37,319 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:25:37,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.06ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 28.9MB in the beginning and 45.5MB in the end (delta: -16.6MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-12-14 14:25:37,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.13ms. Allocated memory is still 75.5MB. Free memory was 45.5MB in the beginning and 43.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:25:37,320 INFO L158 Benchmark]: Boogie Preprocessor took 22.23ms. Allocated memory is still 75.5MB. Free memory was 43.0MB in the beginning and 41.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:25:37,320 INFO L158 Benchmark]: RCFGBuilder took 309.73ms. Allocated memory is still 75.5MB. Free memory was 41.1MB in the beginning and 43.8MB in the end (delta: -2.8MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-12-14 14:25:37,321 INFO L158 Benchmark]: TraceAbstraction took 12885.26ms. Allocated memory was 75.5MB in the beginning and 134.2MB in the end (delta: 58.7MB). Free memory was 43.2MB in the beginning and 70.0MB in the end (delta: -26.8MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-12-14 14:25:37,321 INFO L158 Benchmark]: Witness Printer took 53.64ms. Allocated memory is still 134.2MB. Free memory was 70.0MB in the beginning and 65.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:25:37,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.06ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 28.9MB in the beginning and 45.5MB in the end (delta: -16.6MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.13ms. Allocated memory is still 75.5MB. Free memory was 45.5MB in the beginning and 43.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.23ms. Allocated memory is still 75.5MB. Free memory was 43.0MB in the beginning and 41.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 309.73ms. Allocated memory is still 75.5MB. Free memory was 41.1MB in the beginning and 43.8MB in the end (delta: -2.8MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12885.26ms. Allocated memory was 75.5MB in the beginning and 134.2MB in the end (delta: 58.7MB). Free memory was 43.2MB in the beginning and 70.0MB in the end (delta: -26.8MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Witness Printer took 53.64ms. Allocated memory is still 134.2MB. Free memory was 70.0MB in the beginning and 65.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] * 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 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 15 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 148 SyntacticMatches, 10 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=3, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 63 HoareAnnotationTreeSize, 2 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 145 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 113 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 202 ConstructedInterpolants, 81 QuantifiedInterpolants, 8193 SizeOfPredicates, 443 NumberOfNonLiveVariables, 2525 ConjunctsInSsa, 440 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 72/210 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 91]: Loop Invariant [2022-12-14 14:25:37,329 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] [2022-12-14 14:25:37,329 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] Derived loop invariant: ((((((((((var_7 == state_57 && 1bv8 == mask_SORT_1) && var_7 == state_27) && var_7 == 0bv8) && var_7 == state_40) && state_8 == var_7) && var_7 == state_61) && var_7 == state_25) && 1bv8 == var_21) && var_12 == 0bv32) && 0bv8 == state_14) || (((((1bv8 == mask_SORT_1 && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom16To32(mask_SORT_1), ~zero_extendFrom16To32(~zero_extendFrom16To32(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == state_40)) && var_7 == state_14) && var_7 == 0bv8) && var_12 == 0bv32) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 14:25:37,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5b8ddc3-8010-4f7d-9f0e-5c7612bfe0a5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE