./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 811fa38d0f78abc9d6c35198e154f905ce7fd9ae8b0b3925c3dcfad516930a56 --- 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 16:03:52,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:03:52,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:03:52,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:03:52,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:03:52,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:03:52,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:03:52,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:03:52,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:03:52,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:03:52,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:03:52,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:03:52,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:03:52,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:03:52,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:03:52,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:03:52,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:03:52,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:03:52,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:03:52,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:03:52,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:03:52,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:03:52,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:03:52,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:03:52,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:03:52,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:03:52,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:03:52,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:03:52,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:03:52,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:03:52,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:03:52,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:03:52,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:03:52,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:03:52,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:03:52,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:03:52,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:03:52,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:03:52,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:03:52,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:03:52,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:03:52,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 16:03:52,221 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:03:52,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:03:52,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:03:52,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:03:52,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:03:52,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:03:52,223 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:03:52,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:03:52,224 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:03:52,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:03:52,224 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:03:52,225 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:03:52,225 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:03:52,225 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:03:52,225 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:03:52,225 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:03:52,226 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:03:52,226 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:03:52,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:03:52,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:03:52,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:03:52,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:03:52,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:03:52,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:03:52,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:03:52,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:03:52,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:03:52,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:03:52,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:03:52,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:03:52,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:03:52,229 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:03:52,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:03:52,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:03:52,230 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:03:52,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:03:52,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:03:52,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:03:52,231 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_27a7e476-03ac-4110-b36b-5c22d2b753c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 811fa38d0f78abc9d6c35198e154f905ce7fd9ae8b0b3925c3dcfad516930a56 [2022-11-23 16:03:52,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:03:52,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:03:52,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:03:52,580 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:03:52,581 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:03:52,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c [2022-11-23 16:03:55,602 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:03:55,879 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:03:55,880 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c [2022-11-23 16:03:55,893 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/data/3fd03a2fc/37cf49912ec947e7a219b54598a1af7f/FLAGff6498504 [2022-11-23 16:03:55,964 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/data/3fd03a2fc/37cf49912ec947e7a219b54598a1af7f [2022-11-23 16:03:55,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:03:55,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:03:55,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:03:55,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:03:55,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:03:55,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:03:55" (1/1) ... [2022-11-23 16:03:55,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6103be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:55, skipping insertion in model container [2022-11-23 16:03:55,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:03:55" (1/1) ... [2022-11-23 16:03:55,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:03:56,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:03:56,194 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_27a7e476-03ac-4110-b36b-5c22d2b753c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c[1107,1120] [2022-11-23 16:03:56,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:03:56,487 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:03:56,498 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c[1107,1120] [2022-11-23 16:03:56,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:03:56,639 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:03:56,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56 WrapperNode [2022-11-23 16:03:56,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:03:56,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:03:56,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:03:56,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:03:56,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,776 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1044 [2022-11-23 16:03:56,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:03:56,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:03:56,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:03:56,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:03:56,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:03:56,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:03:56,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:03:56,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:03:56,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:03:56,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:03:56,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:03:56,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:03:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:03:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:03:57,335 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:03:57,337 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:04:17,322 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:04:17,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:04:17,348 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 16:04:17,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:17 BoogieIcfgContainer [2022-11-23 16:04:17,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:04:17,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:04:17,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:04:17,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:04:17,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:03:55" (1/3) ... [2022-11-23 16:04:17,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64afe920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:04:17, skipping insertion in model container [2022-11-23 16:04:17,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (2/3) ... [2022-11-23 16:04:17,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64afe920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:04:17, skipping insertion in model container [2022-11-23 16:04:17,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:17" (3/3) ... [2022-11-23 16:04:17,359 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p05.c [2022-11-23 16:04:17,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:04:17,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 16:04:17,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:04:17,432 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;@1f3455eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:04:17,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 16:04:17,436 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 16:04:17,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 16:04:17,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:04:17,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 16:04:17,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:04:17,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:04:17,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-23 16:04:17,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:04:17,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412189671] [2022-11-23 16:04:17,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:17,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:04:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 16:04:17,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 16:04:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 16:04:18,003 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 16:04:18,005 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 16:04:18,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 16:04:18,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:04:18,014 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 16:04:18,018 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 16:04:18,045 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 16:04:18,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:04:18 BoogieIcfgContainer [2022-11-23 16:04:18,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 16:04:18,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 16:04:18,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 16:04:18,062 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 16:04:18,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:17" (3/4) ... [2022-11-23 16:04:18,066 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 16:04:18,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 16:04:18,074 INFO L158 Benchmark]: Toolchain (without parser) took 22095.69ms. Allocated memory was 155.2MB in the beginning and 444.6MB in the end (delta: 289.4MB). Free memory was 127.6MB in the beginning and 288.5MB in the end (delta: -160.9MB). Peak memory consumption was 128.8MB. Max. memory is 16.1GB. [2022-11-23 16:04:18,075 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory was 83.8MB in the beginning and 83.8MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 16:04:18,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.75ms. Allocated memory is still 155.2MB. Free memory was 127.6MB in the beginning and 91.4MB in the end (delta: 36.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-23 16:04:18,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 140.74ms. Allocated memory is still 155.2MB. Free memory was 91.2MB in the beginning and 80.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 16:04:18,078 INFO L158 Benchmark]: Boogie Preprocessor took 137.07ms. Allocated memory is still 155.2MB. Free memory was 80.7MB in the beginning and 75.1MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 16:04:18,079 INFO L158 Benchmark]: RCFGBuilder took 20430.76ms. Allocated memory was 155.2MB in the beginning and 444.6MB in the end (delta: 289.4MB). Free memory was 75.1MB in the beginning and 332.5MB in the end (delta: -257.4MB). Peak memory consumption was 236.7MB. Max. memory is 16.1GB. [2022-11-23 16:04:18,080 INFO L158 Benchmark]: TraceAbstraction took 707.60ms. Allocated memory is still 444.6MB. Free memory was 331.5MB in the beginning and 289.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-23 16:04:18,082 INFO L158 Benchmark]: Witness Printer took 10.79ms. Allocated memory is still 444.6MB. Free memory was 289.5MB in the beginning and 288.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 16:04:18,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory was 83.8MB in the beginning and 83.8MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.75ms. Allocated memory is still 155.2MB. Free memory was 127.6MB in the beginning and 91.4MB in the end (delta: 36.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 140.74ms. Allocated memory is still 155.2MB. Free memory was 91.2MB in the beginning and 80.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 137.07ms. Allocated memory is still 155.2MB. Free memory was 80.7MB in the beginning and 75.1MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 20430.76ms. Allocated memory was 155.2MB in the beginning and 444.6MB in the end (delta: 289.4MB). Free memory was 75.1MB in the beginning and 332.5MB in the end (delta: -257.4MB). Peak memory consumption was 236.7MB. Max. memory is 16.1GB. * TraceAbstraction took 707.60ms. Allocated memory is still 444.6MB. Free memory was 331.5MB in the beginning and 289.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 10.79ms. Allocated memory is still 444.6MB. Free memory was 289.5MB in the beginning and 288.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 171, overapproximation of bitwiseOr at line 166, overapproximation of bitwiseAnd at line 148. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 5); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L34] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 2); [L35] const SORT_10 msb_SORT_10 = (SORT_10)1 << (2 - 1); [L37] const SORT_14 mask_SORT_14 = (SORT_14)-1 >> (sizeof(SORT_14) * 8 - 3); [L38] const SORT_14 msb_SORT_14 = (SORT_14)1 << (3 - 1); [L40] const SORT_96 mask_SORT_96 = (SORT_96)-1 >> (sizeof(SORT_96) * 8 - 4); [L41] const SORT_96 msb_SORT_96 = (SORT_96)1 << (4 - 1); [L43] const SORT_145 mask_SORT_145 = (SORT_145)-1 >> (sizeof(SORT_145) * 8 - 32); [L44] const SORT_145 msb_SORT_145 = (SORT_145)1 << (32 - 1); [L46] const SORT_5 var_7 = 0; [L47] const SORT_14 var_15 = 0; [L48] const SORT_10 var_19 = 0; [L49] const SORT_3 var_21 = 0; [L50] const SORT_1 var_31 = 1; [L51] const SORT_1 var_37 = 0; [L52] const SORT_14 var_55 = 2; [L53] const SORT_14 var_59 = 1; [L54] const SORT_14 var_64 = 4; [L55] const SORT_14 var_66 = 5; [L56] const SORT_14 var_70 = 3; [L57] const SORT_14 var_113 = 7; [L58] const SORT_14 var_118 = 6; [L59] const SORT_145 var_147 = 0; [L60] const SORT_3 var_162 = 2; [L61] const SORT_3 var_184 = 31; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_5 input_6; [L66] SORT_3 input_173; [L67] SORT_3 input_174; [L68] SORT_3 input_175; [L69] SORT_3 input_183; [L70] SORT_3 input_192; [L71] SORT_3 input_193; [L72] SORT_3 input_194; [L73] SORT_3 input_197; [L74] SORT_3 input_216; [L75] SORT_3 input_217; [L76] SORT_3 input_218; [L77] SORT_3 input_221; [L78] SORT_3 input_223; [L79] SORT_10 input_237; [L80] SORT_10 input_238; [L81] SORT_10 input_239; [L83] SORT_5 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L84] SORT_14 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_14; [L85] SORT_3 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] SORT_3 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] SORT_3 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] SORT_1 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] SORT_3 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L90] SORT_3 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] SORT_3 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] SORT_3 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] SORT_3 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] SORT_3 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] SORT_3 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L97] SORT_5 init_9_arg_1 = var_7; [L98] state_8 = init_9_arg_1 [L99] SORT_14 init_17_arg_1 = var_15; [L100] state_16 = init_17_arg_1 [L101] SORT_3 init_23_arg_1 = var_21; [L102] state_22 = init_23_arg_1 [L103] SORT_3 init_25_arg_1 = var_21; [L104] state_24 = init_25_arg_1 [L105] SORT_3 init_36_arg_1 = var_21; [L106] state_35 = init_36_arg_1 [L107] SORT_1 init_39_arg_1 = var_37; [L108] state_38 = init_39_arg_1 [L109] SORT_3 init_41_arg_1 = var_21; [L110] state_40 = init_41_arg_1 [L111] SORT_3 init_43_arg_1 = var_21; [L112] state_42 = init_43_arg_1 [L113] SORT_3 init_45_arg_1 = var_21; [L114] state_44 = init_45_arg_1 [L115] SORT_3 init_47_arg_1 = var_21; [L116] state_46 = init_47_arg_1 [L117] SORT_3 init_49_arg_1 = var_21; [L118] state_48 = init_49_arg_1 [L119] SORT_3 init_51_arg_1 = var_21; [L120] state_50 = init_51_arg_1 [L121] SORT_3 init_53_arg_1 = var_21; [L122] state_52 = init_53_arg_1 VAL [init_17_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_36_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=3, mask_SORT_14=7, mask_SORT_145=4294967295, mask_SORT_3=31, mask_SORT_5=4095, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_10=2, msb_SORT_14=4, msb_SORT_145=2147483648, msb_SORT_3=16, msb_SORT_5=2048, msb_SORT_96=8, state_16=0, state_22=0, state_24=0, state_35=0, state_38=0, state_40=0, state_42=0, state_44=0, state_46=0, state_48=0, state_50=0, state_52=0, state_8=0, var_113=7, var_118=6, var_147=0, var_15=0, var_162=2, var_184=31, var_19=0, var_21=0, var_31=1, var_37=0, var_55=2, var_59=1, var_64=4, var_66=5, var_7=0, var_70=3] [L125] input_2 = __VERIFIER_nondet_uchar() [L126] input_4 = __VERIFIER_nondet_uchar() [L127] input_6 = __VERIFIER_nondet_ushort() [L128] input_173 = __VERIFIER_nondet_uchar() [L129] input_174 = __VERIFIER_nondet_uchar() [L130] input_175 = __VERIFIER_nondet_uchar() [L131] input_183 = __VERIFIER_nondet_uchar() [L132] input_192 = __VERIFIER_nondet_uchar() [L133] input_193 = __VERIFIER_nondet_uchar() [L134] input_194 = __VERIFIER_nondet_uchar() [L135] input_197 = __VERIFIER_nondet_uchar() [L136] input_216 = __VERIFIER_nondet_uchar() [L137] input_217 = __VERIFIER_nondet_uchar() [L138] input_218 = __VERIFIER_nondet_uchar() [L139] input_221 = __VERIFIER_nondet_uchar() [L140] input_223 = __VERIFIER_nondet_uchar() [L141] input_237 = __VERIFIER_nondet_uchar() [L142] input_238 = __VERIFIER_nondet_uchar() [L143] input_239 = __VERIFIER_nondet_uchar() [L146] SORT_5 var_11_arg_0 = state_8; [L147] SORT_10 var_11 = var_11_arg_0 >> 7; [L148] var_11 = var_11 & mask_SORT_10 [L149] SORT_5 var_12_arg_0 = state_8; [L150] SORT_10 var_12 = var_12_arg_0 >> 5; [L151] var_12 = var_12 & mask_SORT_10 [L152] SORT_10 var_13_arg_0 = var_11; [L153] SORT_10 var_13_arg_1 = var_12; [L154] SORT_1 var_13 = var_13_arg_0 != var_13_arg_1; [L155] SORT_14 var_18_arg_0 = state_16; [L156] SORT_10 var_18 = var_18_arg_0 >> 1; [L157] var_18 = var_18 & mask_SORT_10 [L158] SORT_10 var_20_arg_0 = var_18; [L159] SORT_10 var_20_arg_1 = var_19; [L160] SORT_1 var_20 = var_20_arg_0 == var_20_arg_1; [L161] SORT_3 var_26_arg_0 = state_22; [L162] SORT_3 var_26_arg_1 = state_24; [L163] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L164] SORT_1 var_27_arg_0 = var_20; [L165] SORT_1 var_27_arg_1 = var_26; [L166] SORT_1 var_27 = var_27_arg_0 | var_27_arg_1; [L167] SORT_1 var_28_arg_0 = var_13; [L168] SORT_1 var_28_arg_1 = var_27; [L169] SORT_1 var_28 = var_28_arg_0 | var_28_arg_1; [L170] SORT_1 var_32_arg_0 = var_28; [L171] SORT_1 var_32 = ~var_32_arg_0; [L172] SORT_1 var_33_arg_0 = var_31; [L173] SORT_1 var_33_arg_1 = var_32; [L174] SORT_1 var_33 = var_33_arg_0 & var_33_arg_1; [L175] var_33 = var_33 & mask_SORT_1 [L176] SORT_1 bad_34_arg_0 = var_33; [L177] CALL __VERIFIER_assert(!(bad_34_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: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 16:04:18,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 811fa38d0f78abc9d6c35198e154f905ce7fd9ae8b0b3925c3dcfad516930a56 --- 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 16:04:20,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:04:20,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:04:20,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:04:20,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:04:20,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:04:20,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:04:20,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:04:20,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:04:20,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:04:20,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:04:20,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:04:20,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:04:20,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:04:20,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:04:20,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:04:20,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:04:20,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:04:20,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:04:20,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:04:20,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:04:20,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:04:20,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:04:20,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:04:20,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:04:20,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:04:20,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:04:20,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:04:20,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:04:20,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:04:20,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:04:20,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:04:20,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:04:20,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:04:20,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:04:20,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:04:20,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:04:20,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:04:20,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:04:20,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:04:20,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:04:20,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 16:04:20,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:04:20,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:04:20,685 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:04:20,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:04:20,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:04:20,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:04:20,688 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:04:20,688 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:04:20,688 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:04:20,688 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:04:20,689 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:04:20,690 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:04:20,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:04:20,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:04:20,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:04:20,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:04:20,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:04:20,692 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 16:04:20,692 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 16:04:20,692 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 16:04:20,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:04:20,693 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:04:20,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:04:20,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:04:20,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 16:04:20,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:04:20,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:04:20,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:04:20,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:04:20,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:04:20,695 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 16:04:20,695 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 16:04:20,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:04:20,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:04:20,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 16:04:20,696 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_27a7e476-03ac-4110-b36b-5c22d2b753c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 811fa38d0f78abc9d6c35198e154f905ce7fd9ae8b0b3925c3dcfad516930a56 [2022-11-23 16:04:21,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:04:21,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:04:21,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:04:21,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:04:21,072 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:04:21,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c [2022-11-23 16:04:24,089 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:04:24,396 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:04:24,403 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c [2022-11-23 16:04:24,425 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/data/745f1c427/d61ce304e3464e83bd18569b4fb17556/FLAG72b260bbd [2022-11-23 16:04:24,444 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/data/745f1c427/d61ce304e3464e83bd18569b4fb17556 [2022-11-23 16:04:24,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:04:24,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:04:24,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:04:24,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:04:24,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:04:24,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:04:24" (1/1) ... [2022-11-23 16:04:24,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a8eef81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:24, skipping insertion in model container [2022-11-23 16:04:24,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:04:24" (1/1) ... [2022-11-23 16:04:24,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:04:24,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:04:24,706 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_27a7e476-03ac-4110-b36b-5c22d2b753c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c[1107,1120] [2022-11-23 16:04:24,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:04:24,976 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:04:24,987 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_27a7e476-03ac-4110-b36b-5c22d2b753c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p05.c[1107,1120] [2022-11-23 16:04:25,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:04:25,116 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:04:25,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25 WrapperNode [2022-11-23 16:04:25,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:04:25,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:04:25,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:04:25,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:04:25,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,213 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1044 [2022-11-23 16:04:25,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:04:25,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:04:25,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:04:25,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:04:25,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,279 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:04:25,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:04:25,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:04:25,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:04:25,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (1/1) ... [2022-11-23 16:04:25,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:04:25,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:04:25,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:04:25,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:04:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:04:25,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:04:25,803 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:04:25,805 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:04:27,299 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:04:27,316 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:04:27,317 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 16:04:27,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:27 BoogieIcfgContainer [2022-11-23 16:04:27,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:04:27,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:04:27,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:04:27,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:04:27,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:04:24" (1/3) ... [2022-11-23 16:04:27,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:04:27, skipping insertion in model container [2022-11-23 16:04:27,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:25" (2/3) ... [2022-11-23 16:04:27,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:04:27, skipping insertion in model container [2022-11-23 16:04:27,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:27" (3/3) ... [2022-11-23 16:04:27,333 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p05.c [2022-11-23 16:04:27,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:04:27,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 16:04:27,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:04:27,409 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;@71b71f03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:04:27,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 16:04:27,414 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 16:04:27,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 16:04:27,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:04:27,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 16:04:27,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:04:27,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:04:27,427 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 16:04:27,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 16:04:27,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330022805] [2022-11-23 16:04:27,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:27,441 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 16:04:27,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 16:04:27,449 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 16:04:27,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 16:04:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:27,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 16:04:27,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:04:27,900 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 16:04:27,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:04:27,901 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 16:04:27,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330022805] [2022-11-23 16:04:27,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330022805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:04:27,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:04:27,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:04:27,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103626083] [2022-11-23 16:04:27,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:04:27,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:04:27,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 16:04:27,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:04:27,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:04:27,940 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 16:04:28,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:04:28,140 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 16:04:28,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:04:28,143 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 16:04:28,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:04:28,150 INFO L225 Difference]: With dead ends: 20 [2022-11-23 16:04:28,151 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 16:04:28,154 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 16:04:28,157 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:04:28,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 16:04:28,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 16:04:28,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 16:04:28,188 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 16:04:28,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 16:04:28,190 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 16:04:28,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:04:28,190 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 16:04:28,191 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 16:04:28,191 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 16:04:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 16:04:28,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:04:28,192 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 16:04:28,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 16:04:28,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 16:04:28,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:04:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:04:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 16:04:28,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 16:04:28,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584345177] [2022-11-23 16:04:28,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:28,408 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 16:04:28,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 16:04:28,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 16:04:28,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 16:04:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:29,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-23 16:04:29,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:04:29,381 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 16:04:29,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:04:30,154 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 16:04:30,155 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 16:04:30,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584345177] [2022-11-23 16:04:30,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584345177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:04:30,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1607300941] [2022-11-23 16:04:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:30,160 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 16:04:30,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 16:04:30,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 16:04:30,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 16:04:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:31,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-23 16:04:31,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:04:31,389 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 16:04:31,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:04:31,853 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 16:04:31,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1607300941] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:04:31,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275275791] [2022-11-23 16:04:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:31,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:04:31,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:04:31,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:04:31,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 16:04:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:32,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-23 16:04:32,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:04:32,597 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 16:04:32,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:04:33,265 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 16:04:33,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275275791] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:04:33,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 16:04:33,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-23 16:04:33,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046678688] [2022-11-23 16:04:33,268 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 16:04:33,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 16:04:33,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 16:04:33,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 16:04:33,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 16:04:33,271 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:04:33,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:04:33,675 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 16:04:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 16:04:33,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 16:04:33,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:04:33,676 INFO L225 Difference]: With dead ends: 16 [2022-11-23 16:04:33,677 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 16:04:33,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-23 16:04:33,678 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:04:33,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 19 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 16:04:33,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 16:04:33,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-23 16:04:33,683 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 16:04:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 16:04:33,684 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-23 16:04:33,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:04:33,685 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 16:04:33,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:04:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 16:04:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 16:04:33,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:04:33,686 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 16:04:33,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 16:04:33,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 16:04:34,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-23 16:04:34,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 16:04:34,311 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:04:34,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:04:34,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-23 16:04:34,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 16:04:34,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809601176] [2022-11-23 16:04:34,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 16:04:34,316 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 16:04:34,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 16:04:34,317 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 16:04:34,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a7e476-03ac-4110-b36b-5c22d2b753c3/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 16:04:35,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 16:04:35,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 16:04:35,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1813 conjuncts, 341 conjunts are in the unsatisfiable core [2022-11-23 16:04:35,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:04:42,469 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 16:04:42,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:05:01,544 WARN L233 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 389 DAG size of output: 191 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)