./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 30e68adbe1c4cb4359d060d513c981dc84c9a5086bfaf8b4f9ba7359365655ac --- 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 09:59:26,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:59:26,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:59:26,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:59:26,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:59:26,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:59:26,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:59:26,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:59:26,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:59:26,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:59:26,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:59:26,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:59:26,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:59:26,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:59:26,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:59:26,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:59:26,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:59:26,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:59:26,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:59:26,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:59:26,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:59:26,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:59:26,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:59:26,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:59:26,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:59:26,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:59:26,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:59:26,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:59:26,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:59:26,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:59:26,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:59:26,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:59:26,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:59:26,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:59:26,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:59:26,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:59:26,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:59:26,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:59:26,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:59:26,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:59:26,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:59:26,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:59:26,128 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:59:26,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:59:26,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:59:26,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:59:26,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:59:26,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:59:26,130 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:59:26,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:59:26,130 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:59:26,130 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:59:26,130 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:59:26,130 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:59:26,130 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:59:26,130 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:59:26,131 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:59:26,131 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:59:26,131 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:59:26,131 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:59:26,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:59:26,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:59:26,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:59:26,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:59:26,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:59:26,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:59:26,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:59:26,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:59:26,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:59:26,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:59:26,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:59:26,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:59:26,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:59:26,133 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:59:26,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:59:26,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:59:26,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:59:26,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:59:26,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:59:26,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:59:26,134 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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e68adbe1c4cb4359d060d513c981dc84c9a5086bfaf8b4f9ba7359365655ac [2022-12-14 09:59:26,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:59:26,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:59:26,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:59:26,361 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:59:26,362 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:59:26,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c [2022-12-14 09:59:28,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:59:29,090 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:59:29,090 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c [2022-12-14 09:59:29,098 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/data/1075da919/44559a7c41e04fb787ccf58a04823af0/FLAG5b14fe1e9 [2022-12-14 09:59:29,108 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/data/1075da919/44559a7c41e04fb787ccf58a04823af0 [2022-12-14 09:59:29,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:59:29,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:59:29,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:59:29,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:59:29,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:59:29,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252f8b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29, skipping insertion in model container [2022-12-14 09:59:29,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:59:29,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:59:29,272 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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c[1107,1120] [2022-12-14 09:59:29,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:59:29,413 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:59:29,420 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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c[1107,1120] [2022-12-14 09:59:29,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:59:29,509 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:59:29,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29 WrapperNode [2022-12-14 09:59:29,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:59:29,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:59:29,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:59:29,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:59:29,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,592 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1079 [2022-12-14 09:59:29,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:59:29,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:59:29,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:59:29,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:59:29,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,648 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:59:29,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:59:29,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:59:29,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:59:29,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (1/1) ... [2022-12-14 09:59:29,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:59:29,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:59:29,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:59:29,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:59:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:59:29,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:59:29,933 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:59:29,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:59:45,905 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:59:45,921 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:59:45,921 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:59:45,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:59:45 BoogieIcfgContainer [2022-12-14 09:59:45,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:59:45,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:59:45,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:59:45,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:59:45,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:59:29" (1/3) ... [2022-12-14 09:59:45,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170772d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:59:45, skipping insertion in model container [2022-12-14 09:59:45,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:29" (2/3) ... [2022-12-14 09:59:45,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170772d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:59:45, skipping insertion in model container [2022-12-14 09:59:45,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:59:45" (3/3) ... [2022-12-14 09:59:45,929 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p12.c [2022-12-14 09:59:45,942 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:59:45,942 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:59:45,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:59:45,978 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;@7f5d7919, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:59:45,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:59:45,981 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 09:59:45,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:59:45,985 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:59:45,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:59:45,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:59:45,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:59:45,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 09:59:45,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:59:45,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773553580] [2022-12-14 09:59:45,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:59:45,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:59:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:59:46,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:59:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:59:46,496 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:59:46,497 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:59:46,498 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 09:59:46,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:59:46,503 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 09:59:46,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:59:46,520 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 09:59:46,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:59:46 BoogieIcfgContainer [2022-12-14 09:59:46,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:59:46,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:59:46,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:59:46,527 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:59:46,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:59:45" (3/4) ... [2022-12-14 09:59:46,530 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:59:46,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:59:46,531 INFO L158 Benchmark]: Toolchain (without parser) took 17419.13ms. Allocated memory was 146.8MB in the beginning and 815.8MB in the end (delta: 669.0MB). Free memory was 100.1MB in the beginning and 356.1MB in the end (delta: -256.1MB). Peak memory consumption was 414.5MB. Max. memory is 16.1GB. [2022-12-14 09:59:46,531 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory was 66.6MB in the beginning and 66.6MB in the end (delta: 74.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:59:46,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.82ms. Allocated memory is still 146.8MB. Free memory was 100.1MB in the beginning and 90.7MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 09:59:46,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.97ms. Allocated memory is still 146.8MB. Free memory was 90.7MB in the beginning and 79.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 09:59:46,533 INFO L158 Benchmark]: Boogie Preprocessor took 71.09ms. Allocated memory is still 146.8MB. Free memory was 79.9MB in the beginning and 74.1MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 09:59:46,533 INFO L158 Benchmark]: RCFGBuilder took 16257.92ms. Allocated memory was 146.8MB in the beginning and 815.8MB in the end (delta: 669.0MB). Free memory was 74.1MB in the beginning and 442.1MB in the end (delta: -368.0MB). Peak memory consumption was 458.7MB. Max. memory is 16.1GB. [2022-12-14 09:59:46,533 INFO L158 Benchmark]: TraceAbstraction took 602.24ms. Allocated memory is still 815.8MB. Free memory was 441.1MB in the beginning and 356.2MB in the end (delta: 84.9MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2022-12-14 09:59:46,534 INFO L158 Benchmark]: Witness Printer took 3.24ms. Allocated memory is still 815.8MB. Free memory was 356.2MB in the beginning and 356.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:59:46,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory was 66.6MB in the beginning and 66.6MB in the end (delta: 74.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.82ms. Allocated memory is still 146.8MB. Free memory was 100.1MB in the beginning and 90.7MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.97ms. Allocated memory is still 146.8MB. Free memory was 90.7MB in the beginning and 79.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.09ms. Allocated memory is still 146.8MB. Free memory was 79.9MB in the beginning and 74.1MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 16257.92ms. Allocated memory was 146.8MB in the beginning and 815.8MB in the end (delta: 669.0MB). Free memory was 74.1MB in the beginning and 442.1MB in the end (delta: -368.0MB). Peak memory consumption was 458.7MB. Max. memory is 16.1GB. * TraceAbstraction took 602.24ms. Allocated memory is still 815.8MB. Free memory was 441.1MB in the beginning and 356.2MB in the end (delta: 84.9MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. * Witness Printer took 3.24ms. Allocated memory is still 815.8MB. Free memory was 356.2MB in the beginning and 356.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 153, overapproximation of bitwiseOr at line 151, overapproximation of bitwiseAnd at line 158. 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 - 5); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L34] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 3); [L35] const SORT_7 msb_SORT_7 = (SORT_7)1 << (3 - 1); [L37] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 2); [L38] const SORT_26 msb_SORT_26 = (SORT_26)1 << (2 - 1); [L40] const SORT_108 mask_SORT_108 = (SORT_108)-1 >> (sizeof(SORT_108) * 8 - 4); [L41] const SORT_108 msb_SORT_108 = (SORT_108)1 << (4 - 1); [L43] const SORT_165 mask_SORT_165 = (SORT_165)-1 >> (sizeof(SORT_165) * 8 - 32); [L44] const SORT_165 msb_SORT_165 = (SORT_165)1 << (32 - 1); [L46] const SORT_7 var_8 = 0; [L47] const SORT_3 var_15 = 0; [L48] const SORT_1 var_41 = 1; [L49] const SORT_1 var_51 = 0; [L50] const SORT_5 var_54 = 0; [L51] const SORT_7 var_68 = 2; [L52] const SORT_7 var_72 = 1; [L53] const SORT_7 var_77 = 4; [L54] const SORT_7 var_79 = 5; [L55] const SORT_7 var_83 = 3; [L56] const SORT_3 var_95 = 2; [L57] const SORT_7 var_125 = 7; [L58] const SORT_7 var_130 = 6; [L59] const SORT_165 var_167 = 0; [L60] const SORT_3 var_197 = 31; [L62] SORT_1 input_2; [L63] SORT_3 input_4; [L64] SORT_5 input_6; [L65] SORT_3 input_186; [L66] SORT_3 input_187; [L67] SORT_3 input_188; [L68] SORT_3 input_196; [L69] SORT_3 input_206; [L70] SORT_3 input_207; [L71] SORT_3 input_208; [L72] SORT_3 input_211; [L73] SORT_3 input_230; [L74] SORT_3 input_231; [L75] SORT_3 input_232; [L76] SORT_3 input_235; [L77] SORT_3 input_237; [L78] SORT_26 input_251; [L79] SORT_26 input_252; [L80] SORT_26 input_253; [L82] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L83] SORT_3 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L84] SORT_3 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L85] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] SORT_3 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] SORT_1 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] SORT_5 state_55 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L90] SORT_3 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] SORT_3 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] SORT_3 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] SORT_3 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] SORT_3 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L96] SORT_7 init_10_arg_1 = var_8; [L97] state_9 = init_10_arg_1 [L98] SORT_3 init_17_arg_1 = var_15; [L99] state_16 = init_17_arg_1 [L100] SORT_3 init_20_arg_1 = var_15; [L101] state_19 = init_20_arg_1 [L102] SORT_3 init_46_arg_1 = var_15; [L103] state_45 = init_46_arg_1 [L104] SORT_3 init_48_arg_1 = var_15; [L105] state_47 = init_48_arg_1 [L106] SORT_3 init_50_arg_1 = var_15; [L107] state_49 = init_50_arg_1 [L108] SORT_1 init_53_arg_1 = var_51; [L109] state_52 = init_53_arg_1 [L110] SORT_5 init_56_arg_1 = var_54; [L111] state_55 = init_56_arg_1 [L112] SORT_3 init_58_arg_1 = var_15; [L113] state_57 = init_58_arg_1 [L114] SORT_3 init_60_arg_1 = var_15; [L115] state_59 = init_60_arg_1 [L116] SORT_3 init_62_arg_1 = var_15; [L117] state_61 = init_62_arg_1 [L118] SORT_3 init_64_arg_1 = var_15; [L119] state_63 = init_64_arg_1 [L120] SORT_3 init_66_arg_1 = var_15; [L121] state_65 = init_66_arg_1 VAL [init_10_arg_1=0, init_17_arg_1=0, init_20_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_53_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, mask_SORT_1=1, mask_SORT_108=15, mask_SORT_165=4294967295, mask_SORT_26=3, mask_SORT_3=31, mask_SORT_5=4095, mask_SORT_7=7, msb_SORT_1=1, msb_SORT_108=8, msb_SORT_165=2147483648, msb_SORT_26=2, msb_SORT_3=16, msb_SORT_5=2048, msb_SORT_7=4, state_16=0, state_19=0, state_45=0, state_47=0, state_49=0, state_52=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_9=0, var_125=7, var_130=6, var_15=0, var_167=0, var_197=31, var_41=1, var_51=0, var_54=0, var_68=2, var_72=1, var_77=4, var_79=5, var_8=0, var_83=3, var_95=2] [L124] input_2 = __VERIFIER_nondet_uchar() [L125] input_4 = __VERIFIER_nondet_uchar() [L126] input_6 = __VERIFIER_nondet_ushort() [L127] input_186 = __VERIFIER_nondet_uchar() [L128] input_187 = __VERIFIER_nondet_uchar() [L129] input_188 = __VERIFIER_nondet_uchar() [L130] input_196 = __VERIFIER_nondet_uchar() [L131] input_206 = __VERIFIER_nondet_uchar() [L132] input_207 = __VERIFIER_nondet_uchar() [L133] input_208 = __VERIFIER_nondet_uchar() [L134] input_211 = __VERIFIER_nondet_uchar() [L135] input_230 = __VERIFIER_nondet_uchar() [L136] input_231 = __VERIFIER_nondet_uchar() [L137] input_232 = __VERIFIER_nondet_uchar() [L138] input_235 = __VERIFIER_nondet_uchar() [L139] input_237 = __VERIFIER_nondet_uchar() [L140] input_251 = __VERIFIER_nondet_uchar() [L141] input_252 = __VERIFIER_nondet_uchar() [L142] input_253 = __VERIFIER_nondet_uchar() [L145] SORT_7 var_11_arg_0 = state_9; [L146] SORT_1 var_11 = var_11_arg_0 >> 0; [L147] SORT_7 var_12_arg_0 = state_9; [L148] SORT_1 var_12 = var_12_arg_0 >> 1; [L149] SORT_1 var_13_arg_0 = var_11; [L150] SORT_1 var_13_arg_1 = var_12; [L151] SORT_1 var_13 = var_13_arg_0 | var_13_arg_1; [L152] SORT_1 var_14_arg_0 = var_13; [L153] SORT_1 var_14 = ~var_14_arg_0; [L154] SORT_3 var_18_arg_0 = state_16; [L155] SORT_1 var_18 = var_18_arg_0 >> 1; [L156] SORT_3 var_21_arg_0 = state_19; [L157] SORT_7 var_21 = var_21_arg_0 >> 2; [L158] var_21 = var_21 & mask_SORT_7 [L159] SORT_3 var_22_arg_0 = state_16; [L160] SORT_7 var_22 = var_22_arg_0 >> 2; [L161] var_22 = var_22 & mask_SORT_7 [L162] SORT_7 var_23_arg_0 = var_21; [L163] SORT_7 var_23_arg_1 = var_22; [L164] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L165] SORT_1 var_24_arg_0 = var_18; [L166] SORT_1 var_24_arg_1 = var_23; [L167] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L168] SORT_3 var_25_arg_0 = state_16; [L169] SORT_1 var_25 = var_25_arg_0 >> 2; [L170] SORT_3 var_27_arg_0 = state_19; [L171] SORT_26 var_27 = var_27_arg_0 >> 3; [L172] var_27 = var_27 & mask_SORT_26 [L173] SORT_3 var_28_arg_0 = state_16; [L174] SORT_26 var_28 = var_28_arg_0 >> 3; [L175] var_28 = var_28 & mask_SORT_26 [L176] SORT_26 var_29_arg_0 = var_27; [L177] SORT_26 var_29_arg_1 = var_28; [L178] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L179] SORT_1 var_30_arg_0 = var_25; [L180] SORT_1 var_30_arg_1 = var_29; [L181] SORT_1 var_30 = var_30_arg_0 | var_30_arg_1; [L182] SORT_1 var_31_arg_0 = var_24; [L183] SORT_1 var_31_arg_1 = var_30; [L184] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L185] SORT_3 var_32_arg_0 = state_16; [L186] SORT_1 var_32 = var_32_arg_0 >> 3; [L187] SORT_3 var_33_arg_0 = state_19; [L188] SORT_1 var_33 = var_33_arg_0 >> 4; [L189] var_33 = var_33 & mask_SORT_1 [L190] SORT_3 var_34_arg_0 = state_16; [L191] SORT_1 var_34 = var_34_arg_0 >> 4; [L192] var_34 = var_34 & mask_SORT_1 [L193] SORT_1 var_35_arg_0 = var_33; [L194] SORT_1 var_35_arg_1 = var_34; [L195] SORT_1 var_35 = var_35_arg_0 == var_35_arg_1; [L196] SORT_1 var_36_arg_0 = var_32; [L197] SORT_1 var_36_arg_1 = var_35; [L198] SORT_1 var_36 = var_36_arg_0 | var_36_arg_1; [L199] SORT_1 var_37_arg_0 = var_31; [L200] SORT_1 var_37_arg_1 = var_36; [L201] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L202] SORT_1 var_38_arg_0 = var_14; [L203] SORT_1 var_38_arg_1 = var_37; [L204] SORT_1 var_38 = var_38_arg_0 | var_38_arg_1; [L205] SORT_1 var_42_arg_0 = var_38; [L206] SORT_1 var_42 = ~var_42_arg_0; [L207] SORT_1 var_43_arg_0 = var_41; [L208] SORT_1 var_43_arg_1 = var_42; [L209] SORT_1 var_43 = var_43_arg_0 & var_43_arg_1; [L210] var_43 = var_43 & mask_SORT_1 [L211] SORT_1 bad_44_arg_0 = var_43; [L212] CALL __VERIFIER_assert(!(bad_44_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: 0.5s, 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, 0.2s 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 09:59:46,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 30e68adbe1c4cb4359d060d513c981dc84c9a5086bfaf8b4f9ba7359365655ac --- 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 09:59:48,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:59:48,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:59:48,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:59:48,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:59:48,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:59:48,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:59:48,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:59:48,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:59:48,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:59:48,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:59:48,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:59:48,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:59:48,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:59:48,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:59:48,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:59:48,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:59:48,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:59:48,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:59:48,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:59:48,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:59:48,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:59:48,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:59:48,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:59:48,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:59:48,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:59:48,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:59:48,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:59:48,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:59:48,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:59:48,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:59:48,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:59:48,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:59:48,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:59:48,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:59:48,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:59:48,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:59:48,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:59:48,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:59:48,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:59:48,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:59:48,171 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 09:59:48,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:59:48,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:59:48,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:59:48,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:59:48,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:59:48,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:59:48,189 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:59:48,189 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:59:48,189 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:59:48,189 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:59:48,189 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:59:48,189 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:59:48,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:59:48,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:59:48,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:59:48,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:59:48,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:59:48,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:59:48,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 09:59:48,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 09:59:48,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:59:48,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:59:48,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:59:48,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:59:48,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 09:59:48,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:59:48,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:59:48,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:59:48,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:59:48,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:59:48,192 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 09:59:48,192 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 09:59:48,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:59:48,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:59:48,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 09:59:48,192 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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e68adbe1c4cb4359d060d513c981dc84c9a5086bfaf8b4f9ba7359365655ac [2022-12-14 09:59:48,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:59:48,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:59:48,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:59:48,458 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:59:48,458 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:59:48,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c [2022-12-14 09:59:51,009 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:59:51,171 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:59:51,171 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c [2022-12-14 09:59:51,180 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/data/9ab30fa11/b9e09173b33c489ab5d3204425aa6cbd/FLAG5f73bf007 [2022-12-14 09:59:51,199 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/data/9ab30fa11/b9e09173b33c489ab5d3204425aa6cbd [2022-12-14 09:59:51,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:59:51,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:59:51,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:59:51,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:59:51,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:59:51,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a764063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51, skipping insertion in model container [2022-12-14 09:59:51,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:59:51,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:59:51,353 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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c[1107,1120] [2022-12-14 09:59:51,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:59:51,488 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:59:51,496 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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c[1107,1120] [2022-12-14 09:59:51,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:59:51,560 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:59:51,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51 WrapperNode [2022-12-14 09:59:51,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:59:51,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:59:51,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:59:51,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:59:51,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,615 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1079 [2022-12-14 09:59:51,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:59:51,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:59:51,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:59:51,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:59:51,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,648 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:59:51,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:59:51,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:59:51,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:59:51,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (1/1) ... [2022-12-14 09:59:51,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:59:51,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:59:51,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:59:51,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:59:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:59:51,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:59:51,960 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:59:51,962 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:59:52,702 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:59:52,707 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:59:52,707 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:59:52,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:59:52 BoogieIcfgContainer [2022-12-14 09:59:52,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:59:52,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:59:52,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:59:52,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:59:52,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:59:51" (1/3) ... [2022-12-14 09:59:52,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cf6ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:59:52, skipping insertion in model container [2022-12-14 09:59:52,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:59:51" (2/3) ... [2022-12-14 09:59:52,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cf6ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:59:52, skipping insertion in model container [2022-12-14 09:59:52,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:59:52" (3/3) ... [2022-12-14 09:59:52,718 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p12.c [2022-12-14 09:59:52,731 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:59:52,731 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:59:52,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:59:52,768 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;@799d7fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:59:52,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:59:52,771 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 09:59:52,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:59:52,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:59:52,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:59:52,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:59:52,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:59:52,780 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 09:59:52,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:59:52,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421360833] [2022-12-14 09:59:52,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:59:52,792 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 09:59:52,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:59:52,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 09:59:52,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 09:59:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:59:52,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-14 09:59:52,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:59:53,239 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 09:59:53,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:59:53,240 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:59:53,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421360833] [2022-12-14 09:59:53,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421360833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:59:53,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:59:53,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:59:53,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334861526] [2022-12-14 09:59:53,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:59:53,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:59:53,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:59:53,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:59:53,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:59:53,282 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 09:59:53,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:59:53,420 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 09:59:53,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:59:53,422 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 09:59:53,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:59:53,427 INFO L225 Difference]: With dead ends: 20 [2022-12-14 09:59:53,427 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 09:59:53,429 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 09:59:53,431 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:59:53,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:59:53,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 09:59:53,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 09:59:53,460 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 09:59:53,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 09:59:53,461 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 09:59:53,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:59:53,462 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 09:59:53,462 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 09:59:53,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 09:59:53,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 09:59:53,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:59:53,463 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 09:59:53,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 09:59:53,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 09:59:53,666 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:59:53,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:59:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 09:59:53,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:59:53,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659906371] [2022-12-14 09:59:53,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:59:53,677 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 09:59:53,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:59:53,681 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 09:59:53,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 09:59:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:59:54,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 73 conjunts are in the unsatisfiable core [2022-12-14 09:59:54,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:59:54,404 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 09:59:54,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:00:17,475 WARN L233 SmtUtils]: Spent 22.63s on a formula simplification. DAG size of input: 247 DAG size of output: 142 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:01:46,250 WARN L233 SmtUtils]: Spent 1.44m on a formula simplification. DAG size of input: 237 DAG size of output: 189 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:01:46,420 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 10:01:46,420 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:01:46,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659906371] [2022-12-14 10:01:46,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659906371] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:01:46,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1635706819] [2022-12-14 10:01:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:46,421 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 10:01:46,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 10:01:46,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 10:01:46,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 10:01:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:47,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-14 10:01:47,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:01:47,412 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 10:01:47,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:02:32,284 WARN L233 SmtUtils]: Spent 38.48s on a formula simplification. DAG size of input: 247 DAG size of output: 142 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:04:06,301 WARN L233 SmtUtils]: Spent 1.43m on a formula simplification. DAG size of input: 237 DAG size of output: 187 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:04:06,421 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 10:04:06,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1635706819] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:04:06,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748411793] [2022-12-14 10:04:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:06,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:04:06,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:04:06,422 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:04:06,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:04:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:06,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 86 conjunts are in the unsatisfiable core [2022-12-14 10:04:06,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:04:06,912 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 10:04:06,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:04:47,595 WARN L233 SmtUtils]: Spent 30.30s on a formula simplification. DAG size of input: 247 DAG size of output: 142 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:08:15,353 WARN L233 SmtUtils]: Spent 3.29m on a formula simplification. DAG size of input: 281 DAG size of output: 241 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:08:58,847 WARN L233 SmtUtils]: Spent 41.18s on a formula simplification that was a NOOP. DAG size: 244 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:08:59,042 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 10:08:59,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748411793] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:08:59,042 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 10:08:59,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 16 [2022-12-14 10:08:59,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21021262] [2022-12-14 10:08:59,043 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 10:08:59,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 10:08:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:08:59,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 10:08:59,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=171, Unknown=18, NotChecked=0, Total=240 [2022-12-14 10:08:59,044 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 10:08:59,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:59,469 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 10:08:59,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:08:59,470 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 10:08:59,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:59,470 INFO L225 Difference]: With dead ends: 16 [2022-12-14 10:08:59,470 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 10:08:59,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 541.0s TimeCoverageRelationStatistics Valid=87, Invalid=237, Unknown=18, NotChecked=0, Total=342 [2022-12-14 10:08:59,471 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:59,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 29 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:08:59,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 10:08:59,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 10:08:59,474 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 10:08:59,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 10:08:59,474 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 10:08:59,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:59,474 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 10:08:59,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 10:08:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 10:08:59,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:08:59,475 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:59,475 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 10:08:59,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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)] Forceful destruction successful, exit code 0 [2022-12-14 10:08:59,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 10:08:59,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-12-14 10:09:00,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 10:09:00,078 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:09:00,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:00,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 10:09:00,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:09:00,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318997601] [2022-12-14 10:09:00,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 10:09:00,084 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 10:09:00,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:09:00,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 10:09:00,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85e6ec54-7928-406b-a3a6-ac9738e91fdc/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 10:09:00,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 10:09:00,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:09:00,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 102 conjunts are in the unsatisfiable core [2022-12-14 10:09:00,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:09:00,938 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 10:09:00,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:09:18,446 WARN L233 SmtUtils]: Spent 17.20s on a formula simplification. DAG size of input: 247 DAG size of output: 142 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:10:52,662 WARN L233 SmtUtils]: Spent 1.53m on a formula simplification. DAG size of input: 234 DAG size of output: 186 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)