./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW --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 11bdfd1da401170ec2c31632798533526859896c0f37a65c8b3581cc72b98ebd --- 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-4e7fbc6 [2022-11-23 14:26:15,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:26:15,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:26:15,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:26:15,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:26:15,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:26:15,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:26:15,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:26:15,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:26:15,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:26:15,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:26:15,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:26:15,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:26:15,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:26:15,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:26:15,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:26:15,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:26:15,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:26:15,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:26:15,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:26:15,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:26:15,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:26:15,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:26:15,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:26:15,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:26:15,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:26:15,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:26:15,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:26:15,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:26:15,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:26:15,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:26:15,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:26:15,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:26:15,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:26:15,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:26:15,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:26:15,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:26:15,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:26:15,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:26:15,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:26:15,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:26:15,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:26:15,170 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:26:15,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:26:15,171 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:26:15,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:26:15,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:26:15,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:26:15,173 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:26:15,173 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:26:15,173 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:26:15,173 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:26:15,174 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:26:15,175 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:26:15,175 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:26:15,175 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:26:15,175 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:26:15,175 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:26:15,176 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:26:15,176 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:26:15,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:26:15,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:26:15,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:26:15,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:26:15,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:26:15,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:26:15,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:26:15,178 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:26:15,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:26:15,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:26:15,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:26:15,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:26:15,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:26:15,180 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:26:15,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:26:15,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:26:15,180 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:26:15,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:26:15,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:26:15,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:26:15,181 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_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bdfd1da401170ec2c31632798533526859896c0f37a65c8b3581cc72b98ebd [2022-11-23 14:26:15,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:26:15,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:26:15,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:26:15,490 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:26:15,490 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:26:15,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c [2022-11-23 14:26:18,680 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:26:18,885 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:26:18,885 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c [2022-11-23 14:26:18,893 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/data/61a0620f0/c512fe0b447c46e69fbaf5563dd1584d/FLAG22a8fae1f [2022-11-23 14:26:18,909 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/data/61a0620f0/c512fe0b447c46e69fbaf5563dd1584d [2022-11-23 14:26:18,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:26:18,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:26:18,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:26:18,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:26:18,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:26:18,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:18" (1/1) ... [2022-11-23 14:26:18,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce99cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:18, skipping insertion in model container [2022-11-23 14:26:18,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:18" (1/1) ... [2022-11-23 14:26:18,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:26:18,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:26:19,084 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_c791fbff-af32-4e1d-a276-95832d768b6d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1107,1120] [2022-11-23 14:26:19,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:26:19,122 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:26:19,133 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_c791fbff-af32-4e1d-a276-95832d768b6d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1107,1120] [2022-11-23 14:26:19,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:26:19,165 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:26:19,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19 WrapperNode [2022-11-23 14:26:19,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:26:19,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:26:19,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:26:19,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:26:19,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,214 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2022-11-23 14:26:19,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:26:19,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:26:19,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:26:19,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:26:19,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,246 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:26:19,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:26:19,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:26:19,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:26:19,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (1/1) ... [2022-11-23 14:26:19,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:26:19,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:19,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:26:19,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:26:19,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:26:19,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:26:19,426 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:26:19,428 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:26:19,663 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:26:19,702 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:26:19,703 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:26:19,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:19 BoogieIcfgContainer [2022-11-23 14:26:19,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:26:19,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:26:19,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:26:19,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:26:19,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:26:18" (1/3) ... [2022-11-23 14:26:19,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c1675b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:19, skipping insertion in model container [2022-11-23 14:26:19,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:19" (2/3) ... [2022-11-23 14:26:19,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c1675b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:19, skipping insertion in model container [2022-11-23 14:26:19,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:19" (3/3) ... [2022-11-23 14:26:19,733 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pipeline.c [2022-11-23 14:26:19,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:26:19,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:26:19,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:26:19,864 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@ddb89fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:26:19,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:26:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:19,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:26:19,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:19,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:26:19,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:19,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-23 14:26:19,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:19,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701436518] [2022-11-23 14:26:19,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:19,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:26:20,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:26:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:26:20,286 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:26:20,289 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:26:20,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:26:20,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:26:20,297 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:26:20,302 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:26:20,318 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 14:26:20,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:26:20 BoogieIcfgContainer [2022-11-23 14:26:20,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:26:20,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:26:20,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:26:20,327 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:26:20,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:19" (3/4) ... [2022-11-23 14:26:20,331 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:26:20,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:26:20,332 INFO L158 Benchmark]: Toolchain (without parser) took 1419.22ms. Allocated memory is still 125.8MB. Free memory was 84.7MB in the beginning and 79.7MB in the end (delta: 5.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-11-23 14:26:20,333 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:26:20,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.37ms. Allocated memory is still 125.8MB. Free memory was 84.4MB in the beginning and 73.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:26:20,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.82ms. Allocated memory is still 125.8MB. Free memory was 73.3MB in the beginning and 71.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:26:20,334 INFO L158 Benchmark]: Boogie Preprocessor took 32.33ms. Allocated memory is still 125.8MB. Free memory was 71.4MB in the beginning and 70.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:26:20,335 INFO L158 Benchmark]: RCFGBuilder took 455.58ms. Allocated memory is still 125.8MB. Free memory was 69.9MB in the beginning and 54.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 14:26:20,336 INFO L158 Benchmark]: TraceAbstraction took 608.94ms. Allocated memory is still 125.8MB. Free memory was 54.1MB in the beginning and 80.2MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:26:20,336 INFO L158 Benchmark]: Witness Printer took 5.02ms. Allocated memory is still 125.8MB. Free memory was 80.2MB in the beginning and 79.7MB in the end (delta: 542.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:26:20,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.37ms. Allocated memory is still 125.8MB. Free memory was 84.4MB in the beginning and 73.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.82ms. Allocated memory is still 125.8MB. Free memory was 73.3MB in the beginning and 71.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.33ms. Allocated memory is still 125.8MB. Free memory was 71.4MB in the beginning and 70.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 455.58ms. Allocated memory is still 125.8MB. Free memory was 69.9MB in the beginning and 54.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 608.94ms. Allocated memory is still 125.8MB. Free memory was 54.1MB in the beginning and 80.2MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.02ms. Allocated memory is still 125.8MB. Free memory was 80.2MB in the beginning and 79.7MB in the end (delta: 542.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 79, overapproximation of bitwiseOr at line 77, overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 1); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (1 - 1); [L31] const SORT_1 var_8 = 0; [L32] const SORT_4 var_21 = 1; [L34] SORT_1 input_2; [L35] SORT_1 input_3; [L36] SORT_4 input_5; [L37] SORT_1 input_6; [L38] SORT_4 input_7; [L40] SORT_1 state_9 = __VERIFIER_nondet_uint() & mask_SORT_1; [L41] SORT_1 state_11 = __VERIFIER_nondet_uint() & mask_SORT_1; [L42] SORT_1 state_13 = __VERIFIER_nondet_uint() & mask_SORT_1; [L43] SORT_1 state_26 = __VERIFIER_nondet_uint() & mask_SORT_1; [L44] SORT_1 state_28 = __VERIFIER_nondet_uint() & mask_SORT_1; [L46] SORT_1 init_10_arg_1 = var_8; [L47] state_9 = init_10_arg_1 [L48] SORT_1 init_12_arg_1 = var_8; [L49] state_11 = init_12_arg_1 [L50] SORT_1 init_14_arg_1 = var_8; [L51] state_13 = init_14_arg_1 [L52] SORT_1 init_27_arg_1 = var_8; [L53] state_26 = init_27_arg_1 [L54] SORT_1 init_29_arg_1 = var_8; [L55] state_28 = init_29_arg_1 VAL [init_10_arg_1=0, init_12_arg_1=0, init_14_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_21=1, var_8=0] [L58] input_2 = __VERIFIER_nondet_uint() [L59] input_3 = __VERIFIER_nondet_uint() [L60] input_5 = __VERIFIER_nondet_uchar() [L61] input_6 = __VERIFIER_nondet_uint() [L62] input_7 = __VERIFIER_nondet_uchar() [L65] SORT_1 var_15_arg_0 = state_11; [L66] SORT_1 var_15_arg_1 = state_13; [L67] SORT_1 var_15 = var_15_arg_0 + var_15_arg_1; [L68] var_15 = var_15 & mask_SORT_1 [L69] SORT_1 var_16_arg_0 = state_9; [L70] SORT_1 var_16_arg_1 = var_15; [L71] SORT_4 var_16 = var_16_arg_0 == var_16_arg_1; [L72] SORT_1 var_17_arg_0 = state_9; [L73] SORT_1 var_17_arg_1 = var_8; [L74] SORT_4 var_17 = var_17_arg_0 == var_17_arg_1; [L75] SORT_4 var_18_arg_0 = var_16; [L76] SORT_4 var_18_arg_1 = var_17; [L77] SORT_4 var_18 = var_18_arg_0 | var_18_arg_1; [L78] SORT_4 var_22_arg_0 = var_18; [L79] SORT_4 var_22 = ~var_22_arg_0; [L80] SORT_4 var_23_arg_0 = var_21; [L81] SORT_4 var_23_arg_1 = var_22; [L82] SORT_4 var_23 = var_23_arg_0 & var_23_arg_1; [L83] var_23 = var_23 & mask_SORT_4 [L84] SORT_4 bad_24_arg_0 = var_23; [L85] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=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 [2022-11-23 14:26:20,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/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_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW --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 11bdfd1da401170ec2c31632798533526859896c0f37a65c8b3581cc72b98ebd --- 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-4e7fbc6 [2022-11-23 14:26:22,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:26:22,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:26:22,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:26:22,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:26:22,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:26:22,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:26:22,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:26:22,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:26:22,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:26:22,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:26:22,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:26:22,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:26:22,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:26:22,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:26:23,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:26:23,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:26:23,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:26:23,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:26:23,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:26:23,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:26:23,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:26:23,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:26:23,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:26:23,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:26:23,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:26:23,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:26:23,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:26:23,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:26:23,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:26:23,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:26:23,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:26:23,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:26:23,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:26:23,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:26:23,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:26:23,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:26:23,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:26:23,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:26:23,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:26:23,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:26:23,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 14:26:23,108 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:26:23,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:26:23,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:26:23,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:26:23,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:26:23,112 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:26:23,112 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:26:23,112 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:26:23,112 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:26:23,113 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:26:23,114 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:26:23,114 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:26:23,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:26:23,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:26:23,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:26:23,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:26:23,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:26:23,116 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:26:23,116 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:26:23,117 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:26:23,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:26:23,117 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:26:23,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:26:23,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:26:23,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:26:23,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:26:23,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:26:23,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:26:23,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:26:23,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:26:23,119 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:26:23,119 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:26:23,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:26:23,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:26:23,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:26:23,121 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_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bdfd1da401170ec2c31632798533526859896c0f37a65c8b3581cc72b98ebd [2022-11-23 14:26:23,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:26:23,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:26:23,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:26:23,500 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:26:23,500 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:26:23,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c [2022-11-23 14:26:26,496 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:26:26,776 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:26:26,777 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c [2022-11-23 14:26:26,783 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/data/247bebd62/bb950739812541a0b27b5ea63d5fce87/FLAG784c0a429 [2022-11-23 14:26:26,797 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/data/247bebd62/bb950739812541a0b27b5ea63d5fce87 [2022-11-23 14:26:26,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:26:26,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:26:26,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:26:26,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:26:26,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:26:26,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:26" (1/1) ... [2022-11-23 14:26:26,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a466872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:26, skipping insertion in model container [2022-11-23 14:26:26,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:26" (1/1) ... [2022-11-23 14:26:26,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:26:26,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:26:26,983 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_c791fbff-af32-4e1d-a276-95832d768b6d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1107,1120] [2022-11-23 14:26:27,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:26:27,031 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:26:27,046 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_c791fbff-af32-4e1d-a276-95832d768b6d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1107,1120] [2022-11-23 14:26:27,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:26:27,103 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:26:27,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27 WrapperNode [2022-11-23 14:26:27,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:26:27,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:26:27,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:26:27,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:26:27,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,160 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2022-11-23 14:26:27,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:26:27,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:26:27,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:26:27,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:26:27,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,204 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:26:27,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:26:27,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:26:27,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:26:27,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (1/1) ... [2022-11-23 14:26:27,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:26:27,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:27,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:26:27,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:26:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:26:27,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:26:27,434 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:26:27,436 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:26:27,687 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:26:27,693 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:26:27,693 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:26:27,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:27 BoogieIcfgContainer [2022-11-23 14:26:27,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:26:27,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:26:27,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:26:27,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:26:27,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:26:26" (1/3) ... [2022-11-23 14:26:27,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103319c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:27, skipping insertion in model container [2022-11-23 14:26:27,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:27" (2/3) ... [2022-11-23 14:26:27,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103319c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:27, skipping insertion in model container [2022-11-23 14:26:27,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:27" (3/3) ... [2022-11-23 14:26:27,703 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pipeline.c [2022-11-23 14:26:27,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:26:27,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:26:27,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:26:27,826 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;@42892848, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:26:27,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:26:27,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:26:27,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:27,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:26:27,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:27,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:27,850 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 14:26:27,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:26:27,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407910694] [2022-11-23 14:26:27,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:27,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:26:27,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:26:27,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:26:27,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:26:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:27,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 14:26:28,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:28,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:26:28,182 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:26:28,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407910694] [2022-11-23 14:26:28,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407910694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:26:28,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:26:28,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:26:28,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876498075] [2022-11-23 14:26:28,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:26:28,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:26:28,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:26:28,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:26:28,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:26:28,228 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:28,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:28,288 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 14:26:28,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:26:28,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 14:26:28,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:28,299 INFO L225 Difference]: With dead ends: 20 [2022-11-23 14:26:28,299 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 14:26:28,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:26:28,306 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:28,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:26:28,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 14:26:28,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 14:26:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 14:26:28,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 14:26:28,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:28,339 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 14:26:28,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:28,340 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 14:26:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:26:28,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:28,341 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:28,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:26:28,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:26:28,552 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:28,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:28,553 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 14:26:28,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:26:28,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436002041] [2022-11-23 14:26:28,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:28,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:26:28,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:26:28,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:26:28,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:26:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:28,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 14:26:28,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:28,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:28,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:29,553 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:26:29,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436002041] [2022-11-23 14:26:29,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436002041] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:29,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [666732796] [2022-11-23 14:26:29,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:29,556 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:26:29,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:26:29,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:26:29,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 14:26:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:29,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-23 14:26:29,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:29,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:30,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:30,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [666732796] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:30,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178839280] [2022-11-23 14:26:30,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:30,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:30,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:30,323 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:26:30,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:26:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:30,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-23 14:26:30,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:30,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:30,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:30,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178839280] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:30,845 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:26:30,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 13 [2022-11-23 14:26:30,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477894033] [2022-11-23 14:26:30,846 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:26:30,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:26:30,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:26:30,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:26:30,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:26:30,849 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:31,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:31,094 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 14:26:31,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:26:31,095 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 14:26:31,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:31,096 INFO L225 Difference]: With dead ends: 16 [2022-11-23 14:26:31,096 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 14:26:31,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:26:31,098 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:31,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 33 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:26:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 14:26:31,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-23 14:26:31,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:31,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 14:26:31,103 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-23 14:26:31,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:31,103 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 14:26:31,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:31,104 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 14:26:31,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:26:31,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:31,104 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 14:26:31,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-23 14:26:31,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:26:31,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:26:31,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:26:31,706 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:31,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:31,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-23 14:26:31,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:26:31,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149032899] [2022-11-23 14:26:31,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:26:31,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:26:31,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:26:31,709 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:26:31,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 14:26:31,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:26:31,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:26:31,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-23 14:26:31,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:26:32,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:26:32,679 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:26:32,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149032899] [2022-11-23 14:26:32,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149032899] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:32,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [681236488] [2022-11-23 14:26:32,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:26:32,680 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:26:32,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:26:32,684 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:26:32,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-23 14:26:32,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:26:32,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:26:32,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-23 14:26:32,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:33,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:34,191 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:26:34,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [681236488] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:34,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802205832] [2022-11-23 14:26:34,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:26:34,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:34,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:34,194 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:26:34,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 14:26:34,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:26:34,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:26:34,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-23 14:26:34,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:34,608 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:34,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:35,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:26:35,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802205832] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:35,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:26:35,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 7, 6] total 14 [2022-11-23 14:26:35,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871470204] [2022-11-23 14:26:35,684 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:26:35,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:26:35,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:26:35,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:26:35,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:26:35,686 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:36,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:36,063 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2022-11-23 14:26:36,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:26:36,065 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-23 14:26:36,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:36,065 INFO L225 Difference]: With dead ends: 16 [2022-11-23 14:26:36,066 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:26:36,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2022-11-23 14:26:36,067 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 39 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:36,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 6 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:26:36,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:26:36,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:26:36,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:36,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:26:36,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-23 14:26:36,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:36,072 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:26:36,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:26:36,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:26:36,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:26:36,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:26:36,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:26:36,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:26:36,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:26:36,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:26:36,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:26:36,915 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:26:36,916 INFO L895 garLoopResultBuilder]: At program point L56-2(lines 56 115) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~var_8~0#1| (_ bv0 32))) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_4~0#1|))) (or (and (= (_ bv0 32) |ULTIMATE.start_main_~state_13~0#1|) (= |ULTIMATE.start_main_~var_8~0#1| |ULTIMATE.start_main_~state_26~0#1|) (= (_ bv0 32) |ULTIMATE.start_main_~state_11~0#1|) .cse0 (exists ((|ULTIMATE.start_main_~var_38_arg_1~0#1| (_ BitVec 32))) (= (bvand |ULTIMATE.start_main_~var_8~0#1| |ULTIMATE.start_main_~var_38_arg_1~0#1|) |ULTIMATE.start_main_~state_28~0#1|)) (= (bvadd |ULTIMATE.start_main_~mask_SORT_1~0#1| (_ bv1 32)) (_ bv0 32)) (exists ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 32))) (= (bvand (bvmul (_ bv2 32) |ULTIMATE.start_main_~var_8~0#1|) |ULTIMATE.start_main_~mask_SORT_1~0#1|) |ULTIMATE.start_main_~state_9~0#1|)) .cse1) (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (or (= |ULTIMATE.start_main_~state_9~0#1| (bvand |ULTIMATE.start_main_~var_8~0#1| |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (= |ULTIMATE.start_main_~state_9~0#1| (bvand (bvadd |ULTIMATE.start_main_~state_13~0#1| |ULTIMATE.start_main_~state_11~0#1|) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) .cse0 .cse1))) [2022-11-23 14:26:36,916 INFO L899 garLoopResultBuilder]: For program point L56-3(lines 56 115) no Hoare annotation was computed. [2022-11-23 14:26:36,916 INFO L895 garLoopResultBuilder]: At program point L116(lines 22 117) the Hoare annotation is: false [2022-11-23 14:26:36,916 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 14:26:36,917 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:26:36,917 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 14:26:36,917 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-23 14:26:36,917 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-23 14:26:36,917 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-23 14:26:36,917 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-23 14:26:36,921 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-23 14:26:36,923 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:26:36,931 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_38_arg_1~0#1,QUANTIFIED] [2022-11-23 14:26:36,932 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~mask_SORT_1~0#1,QUANTIFIED] [2022-11-23 14:26:36,937 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_38_arg_1~0#1,QUANTIFIED] [2022-11-23 14:26:36,938 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~mask_SORT_1~0#1,QUANTIFIED] [2022-11-23 14:26:36,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:26:36 BoogieIcfgContainer [2022-11-23 14:26:36,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:26:36,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:26:36,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:26:36,940 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:26:36,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:27" (3/4) ... [2022-11-23 14:26:36,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:26:36,954 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 14:26:36,954 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:26:36,955 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:26:36,977 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0bv32 == state_13 && var_8 == state_26) && 0bv32 == state_11) && var_8 == 0bv32) && (\exists ULTIMATE.start_main_~var_38_arg_1~0#1 : bv32 :: ~bvand32(var_8, ULTIMATE.start_main_~var_38_arg_1~0#1) == state_28)) && ~bvadd128(mask_SORT_1, 1bv32) == 0bv32) && (\exists ULTIMATE.start_main_~mask_SORT_1~0#1 : bv32 :: ~bvand32(~bvmul64(2bv32, var_8), ULTIMATE.start_main_~mask_SORT_1~0#1) == state_9)) && 1bv8 == mask_SORT_4) || (((cond == 1bv32 && (state_9 == ~bvand32(var_8, mask_SORT_1) || state_9 == ~bvand32(~bvadd128(state_13, state_11), mask_SORT_1))) && var_8 == 0bv32) && 1bv8 == mask_SORT_4) [2022-11-23 14:26:36,993 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:26:36,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:26:36,994 INFO L158 Benchmark]: Toolchain (without parser) took 10193.21ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 64.8MB in the beginning and 79.9MB in the end (delta: -15.1MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-11-23 14:26:36,994 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:26:36,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.07ms. Allocated memory is still 86.0MB. Free memory was 64.6MB in the beginning and 53.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:26:36,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.62ms. Allocated memory is still 86.0MB. Free memory was 53.0MB in the beginning and 51.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:26:36,995 INFO L158 Benchmark]: Boogie Preprocessor took 49.14ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 49.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:26:36,996 INFO L158 Benchmark]: RCFGBuilder took 483.64ms. Allocated memory is still 86.0MB. Free memory was 49.6MB in the beginning and 60.6MB in the end (delta: -10.9MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-11-23 14:26:36,996 INFO L158 Benchmark]: TraceAbstraction took 9242.11ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 59.8MB in the beginning and 83.1MB in the end (delta: -23.3MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-11-23 14:26:36,997 INFO L158 Benchmark]: Witness Printer took 53.32ms. Allocated memory is still 125.8MB. Free memory was 83.1MB in the beginning and 79.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:26:36,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.07ms. Allocated memory is still 86.0MB. Free memory was 64.6MB in the beginning and 53.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.62ms. Allocated memory is still 86.0MB. Free memory was 53.0MB in the beginning and 51.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.14ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 49.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 483.64ms. Allocated memory is still 86.0MB. Free memory was 49.6MB in the beginning and 60.6MB in the end (delta: -10.9MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9242.11ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 59.8MB in the beginning and 83.1MB in the end (delta: -23.3MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 53.32ms. Allocated memory is still 125.8MB. Free memory was 83.1MB in the beginning and 79.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_38_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~mask_SORT_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_38_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~mask_SORT_1~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 11 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 73 SyntacticMatches, 8 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 60 HoareAnnotationTreeSize, 2 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 143 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 43 QuantifiedInterpolants, 2118 SizeOfPredicates, 237 NumberOfNonLiveVariables, 781 ConjunctsInSsa, 227 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 14/54 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 56]: Loop Invariant [2022-11-23 14:26:37,008 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_38_arg_1~0#1,QUANTIFIED] [2022-11-23 14:26:37,009 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~mask_SORT_1~0#1,QUANTIFIED] [2022-11-23 14:26:37,009 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_38_arg_1~0#1,QUANTIFIED] [2022-11-23 14:26:37,009 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~mask_SORT_1~0#1,QUANTIFIED] Derived loop invariant: (((((((0bv32 == state_13 && var_8 == state_26) && 0bv32 == state_11) && var_8 == 0bv32) && (\exists ULTIMATE.start_main_~var_38_arg_1~0#1 : bv32 :: ~bvand32(var_8, ULTIMATE.start_main_~var_38_arg_1~0#1) == state_28)) && ~bvadd128(mask_SORT_1, 1bv32) == 0bv32) && (\exists ULTIMATE.start_main_~mask_SORT_1~0#1 : bv32 :: ~bvand32(~bvmul64(2bv32, var_8), ULTIMATE.start_main_~mask_SORT_1~0#1) == state_9)) && 1bv8 == mask_SORT_4) || (((cond == 1bv32 && (state_9 == ~bvand32(var_8, mask_SORT_1) || state_9 == ~bvand32(~bvadd128(state_13, state_11), mask_SORT_1))) && var_8 == 0bv32) && 1bv8 == mask_SORT_4) RESULT: Ultimate proved your program to be correct! [2022-11-23 14:26:37,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c791fbff-af32-4e1d-a276-95832d768b6d/bin/utaipan-Q6hlc19bkW/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 Writing output log to file Ultimate.log Result: TRUE