./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF --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 32bit --witnessprinter.graph.data.programhash 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:22:20,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:22:20,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:22:20,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:22:20,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:22:20,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:22:20,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:22:20,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:22:20,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:22:20,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:22:20,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:22:20,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:22:20,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:22:20,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:22:20,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:22:20,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:22:20,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:22:20,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:22:20,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:22:20,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:22:20,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:22:20,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:22:20,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:22:20,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:22:20,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:22:20,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:22:20,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:22:20,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:22:20,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:22:20,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:22:20,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:22:20,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:22:20,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:22:20,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:22:20,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:22:20,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:22:20,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:22:20,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:22:20,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:22:20,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:22:20,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:22:20,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:22:20,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:22:20,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:22:20,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:22:20,933 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:22:20,933 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:22:20,933 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:22:20,933 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:22:20,934 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:22:20,934 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:22:20,934 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:22:20,935 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:22:20,936 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:22:20,936 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:22:20,936 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:22:20,936 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:22:20,937 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:22:20,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:22:20,938 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:22:20,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:22:20,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:22:20,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:22:20,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:22:20,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:22:20,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:22:20,939 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:22:20,940 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:22:20,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:22:20,940 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:22:20,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:22:20,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:22:20,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:22:20,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:22:20,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:22:20,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:22:20,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:22:20,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:22:20,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:22:20,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:22:20,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:22:20,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:22:20,946 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2021-11-12 23:22:21,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:22:21,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:22:21,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:22:21,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:22:21,290 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:22:21,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-12 23:22:21,379 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data/2c9e928fb/34881371f43145bf8529fc34c7bee174/FLAG7fb04072f [2021-11-12 23:22:21,977 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:22:21,978 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-12 23:22:21,987 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data/2c9e928fb/34881371f43145bf8529fc34c7bee174/FLAG7fb04072f [2021-11-12 23:22:22,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data/2c9e928fb/34881371f43145bf8529fc34c7bee174 [2021-11-12 23:22:22,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:22:22,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:22:22,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:22:22,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:22:22,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:22:22,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b41943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22, skipping insertion in model container [2021-11-12 23:22:22,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:22:22,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:22:22,716 WARN L228 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_98eedcfe-af18-444c-954e-48072cdfe2a3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-12 23:22:22,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:22:22,738 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:22:22,827 WARN L228 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_98eedcfe-af18-444c-954e-48072cdfe2a3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-12 23:22:22,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:22:22,847 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:22:22,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22 WrapperNode [2021-11-12 23:22:22,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:22:22,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:22:22,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:22:22,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:22:22,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:22:22,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:22:22,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:22:22,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:22:22,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:22,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:22:22,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:22:22,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:22:22,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:22:22,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (1/1) ... [2021-11-12 23:22:23,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:22:23,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:22:23,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:22:23,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:22:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:22:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:22:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-12 23:22:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:22:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-12 23:22:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:22:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:22:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:22:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:22:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2021-11-12 23:22:23,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2021-11-12 23:22:23,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:22:23,849 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-11-12 23:22:23,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:22:23 BoogieIcfgContainer [2021-11-12 23:22:23,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:22:23,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:22:23,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:22:23,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:22:23,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:22:22" (1/3) ... [2021-11-12 23:22:23,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36517b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:22:23, skipping insertion in model container [2021-11-12 23:22:23,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:22" (2/3) ... [2021-11-12 23:22:23,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36517b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:22:23, skipping insertion in model container [2021-11-12 23:22:23,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:22:23" (3/3) ... [2021-11-12 23:22:23,863 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2021-11-12 23:22:23,869 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:22:23,870 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:22:23,922 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:22:23,930 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:22:23,930 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:22:23,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 67 states have (on average 1.7164179104477613) internal successors, (115), 68 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:22:23,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 23:22:23,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:23,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:23,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:22:23,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:23,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1867774098, now seen corresponding path program 1 times [2021-11-12 23:22:23,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:23,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333021277] [2021-11-12 23:22:23,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:23,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:24,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:24,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:24,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333021277] [2021-11-12 23:22:24,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333021277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:24,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:24,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:22:24,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138559284] [2021-11-12 23:22:24,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:24,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:22:24,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:24,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:22:24,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:22:24,229 INFO L87 Difference]: Start difference. First operand has 72 states, 67 states have (on average 1.7164179104477613) internal successors, (115), 68 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2021-11-12 23:22:24,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:24,317 INFO L93 Difference]: Finished difference Result 143 states and 239 transitions. [2021-11-12 23:22:24,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:22:24,321 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) Word has length 13 [2021-11-12 23:22:24,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:24,334 INFO L225 Difference]: With dead ends: 143 [2021-11-12 23:22:24,334 INFO L226 Difference]: Without dead ends: 70 [2021-11-12 23:22:24,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:22:24,346 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:24,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 10 Unknown, 0 Unchecked, 3.35ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 31.20ms Time] [2021-11-12 23:22:24,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-12 23:22:24,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-12 23:22:24,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 66 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:22:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2021-11-12 23:22:24,405 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 13 [2021-11-12 23:22:24,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:24,406 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2021-11-12 23:22:24,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2021-11-12 23:22:24,406 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2021-11-12 23:22:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 23:22:24,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:24,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:24,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:22:24,408 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:22:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:24,409 INFO L85 PathProgramCache]: Analyzing trace with hash -573064207, now seen corresponding path program 1 times [2021-11-12 23:22:24,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:24,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962514753] [2021-11-12 23:22:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:24,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:22:24,513 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:22:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:22:24,625 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:22:24,630 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:22:24,632 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:22:24,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:22:24,638 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-12 23:22:24,640 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:22:24,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:22:24 BoogieIcfgContainer [2021-11-12 23:22:24,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:22:24,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:22:24,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:22:24,694 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:22:24,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:22:23" (3/4) ... [2021-11-12 23:22:24,698 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 23:22:24,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:22:24,701 INFO L158 Benchmark]: Toolchain (without parser) took 2384.11ms. Allocated memory is still 115.3MB. Free memory was 78.8MB in the beginning and 68.0MB in the end (delta: 10.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-12 23:22:24,703 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 115.3MB. Free memory was 86.8MB in the beginning and 86.7MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:22:24,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.16ms. Allocated memory is still 115.3MB. Free memory was 78.5MB in the beginning and 85.9MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:22:24,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.48ms. Allocated memory is still 115.3MB. Free memory was 85.9MB in the beginning and 83.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:22:24,714 INFO L158 Benchmark]: Boogie Preprocessor took 47.26ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 81.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:22:24,715 INFO L158 Benchmark]: RCFGBuilder took 876.74ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 56.2MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-12 23:22:24,717 INFO L158 Benchmark]: TraceAbstraction took 837.02ms. Allocated memory is still 115.3MB. Free memory was 55.6MB in the beginning and 68.0MB in the end (delta: -12.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:22:24,717 INFO L158 Benchmark]: Witness Printer took 6.14ms. Allocated memory is still 115.3MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:22:24,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 115.3MB. Free memory was 86.8MB in the beginning and 86.7MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.16ms. Allocated memory is still 115.3MB. Free memory was 78.5MB in the beginning and 85.9MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.48ms. Allocated memory is still 115.3MB. Free memory was 85.9MB in the beginning and 83.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.26ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 81.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 876.74ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 56.2MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 837.02ms. Allocated memory is still 115.3MB. Free memory was 55.6MB in the beginning and 68.0MB in the end (delta: -12.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.14ms. Allocated memory is still 115.3MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 237]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 120, overapproximation of bitwiseAnd at line 220. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L231] float x = -1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L234] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=4294967296, \old(y)=4294967296, a=4294967296, b=4294967296, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=4294967296, \old(y)=4294967296, a=4294967296, b=4294967296, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL [L99] COND FALSE !(hb > ha) [L106] a = x [L107] b = y VAL [\old(x)=4294967296, \old(y)=4294967296, a=4294967296, b=4294967296, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=4294967296, \old(y)=4294967296, a=4294967298, b=4294967299, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] [L234] RET, EXPR __ieee754_hypotf(x, y) [L234] float res = __ieee754_hypotf(x, y); [L236] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [\old(x)=4294967297, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967297] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); [L236] RET, EXPR isinf_float(res) [L236] COND TRUE !isinf_float(res) [L237] reach_error() VAL [one_sqrt=1, res=4294967297, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 31.20ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 25.90ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 76 mSDtfsCounter, 10 mSolverCounterSat, 3.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-11-12 23:22:24,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF --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 32bit --witnessprinter.graph.data.programhash 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:22:27,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:22:27,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:22:27,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:22:27,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:22:27,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:22:27,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:22:27,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:22:27,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:22:27,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:22:27,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:22:27,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:22:27,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:22:27,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:22:27,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:22:27,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:22:27,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:22:27,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:22:27,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:22:27,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:22:27,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:22:27,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:22:27,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:22:27,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:22:27,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:22:27,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:22:27,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:22:27,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:22:27,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:22:27,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:22:27,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:22:27,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:22:27,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:22:27,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:22:27,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:22:27,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:22:27,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:22:27,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:22:27,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:22:27,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:22:27,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:22:27,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:22:27,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:22:27,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:22:27,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:22:27,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:22:27,726 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:22:27,726 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:22:27,726 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:22:27,726 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:22:27,727 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:22:27,727 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:22:27,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:22:27,729 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:22:27,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:22:27,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:22:27,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:22:27,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:22:27,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:22:27,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:22:27,731 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:22:27,731 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:22:27,731 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:22:27,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:22:27,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:22:27,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:22:27,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:22:27,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:22:27,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:22:27,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:22:27,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:22:27,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:22:27,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:22:27,735 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:22:27,735 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:22:27,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:22:27,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:22:27,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:22:27,736 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_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2021-11-12 23:22:28,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:22:28,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:22:28,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:22:28,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:22:28,212 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:22:28,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-12 23:22:28,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data/76b7039ef/221fe4ea6c70450ea4014f526c436802/FLAGa70a9a389 [2021-11-12 23:22:28,933 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:22:28,937 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-12 23:22:28,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data/76b7039ef/221fe4ea6c70450ea4014f526c436802/FLAGa70a9a389 [2021-11-12 23:22:29,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/data/76b7039ef/221fe4ea6c70450ea4014f526c436802 [2021-11-12 23:22:29,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:22:29,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:22:29,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:22:29,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:22:29,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:22:29,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d16c3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29, skipping insertion in model container [2021-11-12 23:22:29,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:22:29,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:22:29,587 WARN L228 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_98eedcfe-af18-444c-954e-48072cdfe2a3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-12 23:22:29,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:22:29,630 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:22:29,724 WARN L228 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_98eedcfe-af18-444c-954e-48072cdfe2a3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-12 23:22:29,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:22:29,745 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:22:29,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29 WrapperNode [2021-11-12 23:22:29,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:22:29,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:22:29,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:22:29,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:22:29,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:22:29,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:22:29,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:22:29,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:22:29,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:22:29,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:22:29,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:22:29,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:22:29,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (1/1) ... [2021-11-12 23:22:29,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:22:29,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:22:29,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:22:29,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:22:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:22:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:22:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-12 23:22:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:22:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:22:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:22:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-12 23:22:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:22:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:22:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2021-11-12 23:22:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2021-11-12 23:22:31,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:22:31,817 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-11-12 23:22:31,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:22:31 BoogieIcfgContainer [2021-11-12 23:22:31,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:22:31,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:22:31,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:22:31,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:22:31,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:22:29" (1/3) ... [2021-11-12 23:22:31,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6282b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:22:31, skipping insertion in model container [2021-11-12 23:22:31,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:29" (2/3) ... [2021-11-12 23:22:31,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6282b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:22:31, skipping insertion in model container [2021-11-12 23:22:31,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:22:31" (3/3) ... [2021-11-12 23:22:31,830 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2021-11-12 23:22:31,837 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:22:31,838 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:22:31,903 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:22:31,911 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:22:31,912 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:22:31,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:22:31,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:22:31,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:31,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:31,958 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:22:31,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:31,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1724151004, now seen corresponding path program 1 times [2021-11-12 23:22:31,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:31,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584919556] [2021-11-12 23:22:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:31,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:31,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:31,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:32,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:22:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:32,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:22:32,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:22:32,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:32,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:22:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:32,401 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:22:32,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584919556] [2021-11-12 23:22:32,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584919556] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:32,403 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:32,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:22:32,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73820928] [2021-11-12 23:22:32,407 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:32,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:22:32,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:22:32,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:22:32,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:22:32,486 INFO L87 Difference]: Start difference. First operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-12 23:22:32,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:32,565 INFO L93 Difference]: Finished difference Result 176 states and 292 transitions. [2021-11-12 23:22:32,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:22:32,575 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-11-12 23:22:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:32,590 INFO L225 Difference]: With dead ends: 176 [2021-11-12 23:22:32,590 INFO L226 Difference]: Without dead ends: 86 [2021-11-12 23:22:32,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:22:32,606 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:32,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 5.59ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:22:32,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-12 23:22:32,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-12 23:22:32,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 82 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:22:32,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2021-11-12 23:22:32,684 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 16 [2021-11-12 23:22:32,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:32,684 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2021-11-12 23:22:32,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-12 23:22:32,685 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2021-11-12 23:22:32,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 23:22:32,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:32,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:32,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:22:32,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:22:32,888 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:22:32,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:32,889 INFO L85 PathProgramCache]: Analyzing trace with hash -927967701, now seen corresponding path program 1 times [2021-11-12 23:22:32,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:32,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861582787] [2021-11-12 23:22:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:32,892 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:32,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:32,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:32,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:22:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:33,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-12 23:22:33,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:22:33,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-12 23:22:34,094 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-12 23:22:34,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 52 [2021-11-12 23:22:36,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 59 [2021-11-12 23:22:39,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:39,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:23:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:35,047 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:23:35,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861582787] [2021-11-12 23:23:35,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861582787] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:35,048 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:35,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 25 [2021-11-12 23:23:35,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866504194] [2021-11-12 23:23:35,049 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:35,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-12 23:23:35,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:23:35,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-12 23:23:35,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=510, Unknown=11, NotChecked=0, Total=600 [2021-11-12 23:23:35,053 INFO L87 Difference]: Start difference. First operand 86 states and 108 transitions. Second operand has 25 states, 25 states have (on average 1.64) internal successors, (41), 25 states have internal predecessors, (41), 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) [2021-11-12 23:23:36,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:36,261 INFO L93 Difference]: Finished difference Result 99 states and 121 transitions. [2021-11-12 23:23:36,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:23:36,262 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.64) internal successors, (41), 25 states have internal predecessors, (41), 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 21 [2021-11-12 23:23:36,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:36,264 INFO L225 Difference]: With dead ends: 99 [2021-11-12 23:23:36,264 INFO L226 Difference]: Without dead ends: 91 [2021-11-12 23:23:36,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 47.6s TimeCoverageRelationStatistics Valid=85, Invalid=554, Unknown=11, NotChecked=0, Total=650 [2021-11-12 23:23:36,268 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 12 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 351.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 154 IncrementalHoareTripleChecker+Unchecked, 362.31ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:36,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 1490 Invalid, 177 Unknown, 0 Unchecked, 13.28ms Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 154 Unchecked, 362.31ms Time] [2021-11-12 23:23:36,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-12 23:23:36,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-11-12 23:23:36,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 87 states have (on average 1.2528735632183907) internal successors, (109), 87 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:23:36,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 113 transitions. [2021-11-12 23:23:36,284 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 113 transitions. Word has length 21 [2021-11-12 23:23:36,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:36,285 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 113 transitions. [2021-11-12 23:23:36,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.64) internal successors, (41), 25 states have internal predecessors, (41), 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) [2021-11-12 23:23:36,286 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 113 transitions. [2021-11-12 23:23:36,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 23:23:36,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:36,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:36,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 23:23:36,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:23:36,503 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:23:36,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:36,504 INFO L85 PathProgramCache]: Analyzing trace with hash -341161687, now seen corresponding path program 1 times [2021-11-12 23:23:36,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:23:36,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179518961] [2021-11-12 23:23:36,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:36,506 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:23:36,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:23:36,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:23:36,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:23:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:36,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:23:36,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:23:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:38,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:23:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:42,064 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:23:42,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179518961] [2021-11-12 23:23:42,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179518961] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:42,064 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:42,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-12 23:23:42,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446168096] [2021-11-12 23:23:42,065 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:42,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:23:42,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:23:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:23:42,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:23:42,067 INFO L87 Difference]: Start difference. First operand 91 states and 113 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 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) [2021-11-12 23:23:46,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:23:48,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:23:48,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:48,318 INFO L93 Difference]: Finished difference Result 99 states and 120 transitions. [2021-11-12 23:23:48,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:23:48,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 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 21 [2021-11-12 23:23:48,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:48,368 INFO L225 Difference]: With dead ends: 99 [2021-11-12 23:23:48,368 INFO L226 Difference]: Without dead ends: 91 [2021-11-12 23:23:48,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:23:48,370 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 53 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6141.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.78ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 123 IncrementalHoareTripleChecker+Unchecked, 6231.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:48,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 622 Invalid, 177 Unknown, 0 Unchecked, 3.78ms Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 2 Unknown, 123 Unchecked, 6231.19ms Time] [2021-11-12 23:23:48,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-12 23:23:48,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 86. [2021-11-12 23:23:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 82 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:23:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 107 transitions. [2021-11-12 23:23:48,384 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 107 transitions. Word has length 21 [2021-11-12 23:23:48,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:48,394 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 107 transitions. [2021-11-12 23:23:48,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 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) [2021-11-12 23:23:48,395 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 107 transitions. [2021-11-12 23:23:48,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 23:23:48,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:48,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:48,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:23:48,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:23:48,607 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:23:48,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:48,608 INFO L85 PathProgramCache]: Analyzing trace with hash -637128605, now seen corresponding path program 1 times [2021-11-12 23:23:48,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:23:48,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214496484] [2021-11-12 23:23:48,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:48,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:23:48,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:23:48,610 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:23:48,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:23:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:48,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:23:48,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:23:50,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:50,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:23:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:51,146 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:23:51,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214496484] [2021-11-12 23:23:51,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214496484] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:51,146 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:51,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:23:51,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326033572] [2021-11-12 23:23:51,147 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:51,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:51,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:23:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:51,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:51,149 INFO L87 Difference]: Start difference. First operand 86 states and 107 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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) [2021-11-12 23:23:51,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:51,318 INFO L93 Difference]: Finished difference Result 163 states and 200 transitions. [2021-11-12 23:23:51,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:23:51,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 24 [2021-11-12 23:23:51,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:51,323 INFO L225 Difference]: With dead ends: 163 [2021-11-12 23:23:51,324 INFO L226 Difference]: Without dead ends: 100 [2021-11-12 23:23:51,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:51,326 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 30 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.58ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 159.68ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:51,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 584 Invalid, 45 Unknown, 0 Unchecked, 1.58ms Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 33 Unchecked, 159.68ms Time] [2021-11-12 23:23:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-12 23:23:51,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 92. [2021-11-12 23:23:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 88 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:23:51,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 113 transitions. [2021-11-12 23:23:51,340 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 113 transitions. Word has length 24 [2021-11-12 23:23:51,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:51,340 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 113 transitions. [2021-11-12 23:23:51,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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) [2021-11-12 23:23:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 113 transitions. [2021-11-12 23:23:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 23:23:51,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:51,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:51,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:23:51,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:23:51,570 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:23:51,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:51,571 INFO L85 PathProgramCache]: Analyzing trace with hash 383939749, now seen corresponding path program 1 times [2021-11-12 23:23:51,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:23:51,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027723033] [2021-11-12 23:23:51,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:51,572 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:23:51,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:23:51,573 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:23:51,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:23:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:51,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:23:51,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:23:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:53,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:23:54,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:54,262 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:23:54,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027723033] [2021-11-12 23:23:54,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027723033] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:54,262 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:54,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-12 23:23:54,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041866659] [2021-11-12 23:23:54,263 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:54,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:23:54,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:23:54,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:23:54,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:23:54,265 INFO L87 Difference]: Start difference. First operand 92 states and 113 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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) [2021-11-12 23:23:55,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:55,035 INFO L93 Difference]: Finished difference Result 184 states and 221 transitions. [2021-11-12 23:23:55,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:23:55,036 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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 24 [2021-11-12 23:23:55,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:55,038 INFO L225 Difference]: With dead ends: 184 [2021-11-12 23:23:55,039 INFO L226 Difference]: Without dead ends: 122 [2021-11-12 23:23:55,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:23:55,042 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 71 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 454.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.57ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 472.40ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:55,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 541 Invalid, 90 Unknown, 0 Unchecked, 2.57ms Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 58 Unchecked, 472.40ms Time] [2021-11-12 23:23:55,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-12 23:23:55,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 93. [2021-11-12 23:23:55,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.2359550561797752) internal successors, (110), 89 states have internal predecessors, (110), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:23:55,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 114 transitions. [2021-11-12 23:23:55,068 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 114 transitions. Word has length 24 [2021-11-12 23:23:55,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:55,068 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 114 transitions. [2021-11-12 23:23:55,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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) [2021-11-12 23:23:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2021-11-12 23:23:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 23:23:55,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:55,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:55,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 23:23:55,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:23:55,286 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:23:55,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:55,286 INFO L85 PathProgramCache]: Analyzing trace with hash 753179498, now seen corresponding path program 1 times [2021-11-12 23:23:55,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:23:55,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205932886] [2021-11-12 23:23:55,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:55,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:23:55,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:23:55,288 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:23:55,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:23:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:55,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:23:55,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:23:55,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-12 23:23:57,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2021-11-12 23:23:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:58,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:01,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:01,830 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:01,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205932886] [2021-11-12 23:24:01,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205932886] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:01,831 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:01,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-11-12 23:24:01,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896449126] [2021-11-12 23:24:01,831 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:01,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 23:24:01,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:01,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 23:24:01,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:24:01,834 INFO L87 Difference]: Start difference. First operand 93 states and 114 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:02,529 INFO L93 Difference]: Finished difference Result 112 states and 135 transitions. [2021-11-12 23:24:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-12 23:24:02,529 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-12 23:24:02,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:02,530 INFO L225 Difference]: With dead ends: 112 [2021-11-12 23:24:02,531 INFO L226 Difference]: Without dead ends: 96 [2021-11-12 23:24:02,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:24:02,533 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 10 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 130.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.67ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 132.48ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:02,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1099 Invalid, 106 Unknown, 0 Unchecked, 2.67ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 94 Unchecked, 132.48ms Time] [2021-11-12 23:24:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-12 23:24:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93. [2021-11-12 23:24:02,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 89 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2021-11-12 23:24:02,545 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 26 [2021-11-12 23:24:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:02,546 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2021-11-12 23:24:02,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2021-11-12 23:24:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 23:24:02,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:02,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:02,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-12 23:24:02,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:02,763 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:02,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:02,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1433237868, now seen corresponding path program 1 times [2021-11-12 23:24:02,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:02,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312171539] [2021-11-12 23:24:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:02,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:02,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:02,764 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:02,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:24:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:02,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 23:24:02,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:06,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:13,442 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_isinf_float_~ix~1#1_27| (_ BitVec 32))) (or (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |c_ULTIMATE.start___ieee754_hypotf_~ha~0#1|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_isinf_float_~ix~1#1_27|) ((_ extract 30 23) |v_ULTIMATE.start_isinf_float_~ix~1#1_27|) ((_ extract 22 0) |v_ULTIMATE.start_isinf_float_~ix~1#1_27|)))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isinf_float_~ix~1#1_27|) (_ bv2139095040 32)))) is different from false [2021-11-12 23:24:15,675 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_isinf_float_~ix~1#1_27| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_48| (_ BitVec 32))) (or (not (= |c_ULTIMATE.start___ieee754_hypotf_~x#1| (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_48|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_48|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_48|)))) (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_48|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_isinf_float_~ix~1#1_27|) ((_ extract 30 23) |v_ULTIMATE.start_isinf_float_~ix~1#1_27|) ((_ extract 22 0) |v_ULTIMATE.start_isinf_float_~ix~1#1_27|)))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isinf_float_~ix~1#1_27|) (_ bv2139095040 32)))) is different from false [2021-11-12 23:24:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:15,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:15,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312171539] [2021-11-12 23:24:15,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312171539] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:15,712 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:15,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-11-12 23:24:15,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676702949] [2021-11-12 23:24:15,713 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:15,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-12 23:24:15,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:15,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-12 23:24:15,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=336, Unknown=2, NotChecked=74, Total=462 [2021-11-12 23:24:15,715 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 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) [2021-11-12 23:24:18,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:18,470 INFO L93 Difference]: Finished difference Result 116 states and 136 transitions. [2021-11-12 23:24:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:24:18,471 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 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 26 [2021-11-12 23:24:18,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:18,472 INFO L225 Difference]: With dead ends: 116 [2021-11-12 23:24:18,473 INFO L226 Difference]: Without dead ends: 106 [2021-11-12 23:24:18,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=61, Invalid=407, Unknown=2, NotChecked=82, Total=552 [2021-11-12 23:24:18,475 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 13 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 174.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 166 IncrementalHoareTripleChecker+Unchecked, 178.23ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:18,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 1793 Invalid, 180 Unknown, 0 Unchecked, 3.85ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 166 Unchecked, 178.23ms Time] [2021-11-12 23:24:18,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-12 23:24:18,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 95. [2021-11-12 23:24:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2307692307692308) internal successors, (112), 91 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:18,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 116 transitions. [2021-11-12 23:24:18,487 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 116 transitions. Word has length 26 [2021-11-12 23:24:18,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:18,487 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 116 transitions. [2021-11-12 23:24:18,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 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) [2021-11-12 23:24:18,488 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 116 transitions. [2021-11-12 23:24:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 23:24:18,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:18,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:18,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:18,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:18,709 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:18,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:18,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1040210858, now seen corresponding path program 1 times [2021-11-12 23:24:18,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:18,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445593184] [2021-11-12 23:24:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:18,710 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:18,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:18,711 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:18,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:24:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:18,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:24:18,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:20,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:21,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:21,044 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:21,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445593184] [2021-11-12 23:24:21,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445593184] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:21,044 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:21,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:24:21,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777206018] [2021-11-12 23:24:21,045 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:21,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:21,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:21,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:21,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:21,046 INFO L87 Difference]: Start difference. First operand 95 states and 116 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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) [2021-11-12 23:24:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:21,690 INFO L93 Difference]: Finished difference Result 174 states and 210 transitions. [2021-11-12 23:24:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:24:21,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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 26 [2021-11-12 23:24:21,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:21,693 INFO L225 Difference]: With dead ends: 174 [2021-11-12 23:24:21,693 INFO L226 Difference]: Without dead ends: 97 [2021-11-12 23:24:21,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:21,695 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 20 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 514.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.00ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 533.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:21,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 304 Invalid, 37 Unknown, 0 Unchecked, 1.00ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 15 Unchecked, 533.00ms Time] [2021-11-12 23:24:21,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-12 23:24:21,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2021-11-12 23:24:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.2289156626506024) internal successors, (102), 83 states have internal predecessors, (102), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:21,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2021-11-12 23:24:21,713 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 26 [2021-11-12 23:24:21,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:21,714 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2021-11-12 23:24:21,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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) [2021-11-12 23:24:21,714 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2021-11-12 23:24:21,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 23:24:21,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:21,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:21,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:21,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:21,919 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:21,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash -867584722, now seen corresponding path program 1 times [2021-11-12 23:24:21,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:21,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081494845] [2021-11-12 23:24:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:21,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:21,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:21,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:21,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:24:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:22,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 23:24:22,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:25,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:26,884 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:26,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081494845] [2021-11-12 23:24:26,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081494845] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:26,884 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:26,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-12 23:24:26,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478384423] [2021-11-12 23:24:26,885 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:26,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:24:26,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:26,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:24:26,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:24:26,886 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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) [2021-11-12 23:24:29,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:24:31,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:24:31,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:31,638 INFO L93 Difference]: Finished difference Result 124 states and 145 transitions. [2021-11-12 23:24:31,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:24:31,681 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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 26 [2021-11-12 23:24:31,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:31,683 INFO L225 Difference]: With dead ends: 124 [2021-11-12 23:24:31,683 INFO L226 Difference]: Without dead ends: 114 [2021-11-12 23:24:31,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:24:31,685 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 44 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4665.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.00ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 4737.79ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:31,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 718 Invalid, 99 Unknown, 0 Unchecked, 2.00ms Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 2 Unknown, 54 Unchecked, 4737.79ms Time] [2021-11-12 23:24:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-12 23:24:31,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 87. [2021-11-12 23:24:31,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.216867469879518) internal successors, (101), 83 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:31,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 105 transitions. [2021-11-12 23:24:31,697 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 105 transitions. Word has length 26 [2021-11-12 23:24:31,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:31,698 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 105 transitions. [2021-11-12 23:24:31,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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) [2021-11-12 23:24:31,699 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 105 transitions. [2021-11-12 23:24:31,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 23:24:31,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:31,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:31,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:31,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:31,921 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:31,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:31,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1260611732, now seen corresponding path program 1 times [2021-11-12 23:24:31,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:31,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57857090] [2021-11-12 23:24:31,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:31,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:31,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:31,923 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:31,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 23:24:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:32,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:24:32,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:33,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:33,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:34,798 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:34,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57857090] [2021-11-12 23:24:34,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57857090] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:34,799 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:34,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-12 23:24:34,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029308048] [2021-11-12 23:24:34,799 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:34,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:24:34,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:34,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:24:34,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:24:34,800 INFO L87 Difference]: Start difference. First operand 87 states and 105 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 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) [2021-11-12 23:24:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:35,963 INFO L93 Difference]: Finished difference Result 108 states and 128 transitions. [2021-11-12 23:24:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:24:35,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 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 26 [2021-11-12 23:24:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:35,972 INFO L225 Difference]: With dead ends: 108 [2021-11-12 23:24:35,972 INFO L226 Difference]: Without dead ends: 97 [2021-11-12 23:24:35,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:24:35,973 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 17 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 962.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 977.88ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:35,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 436 Invalid, 63 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 40 Unchecked, 977.88ms Time] [2021-11-12 23:24:35,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-12 23:24:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 84. [2021-11-12 23:24:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.2125) internal successors, (97), 80 states have internal predecessors, (97), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:35,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2021-11-12 23:24:35,985 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 26 [2021-11-12 23:24:35,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:35,985 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2021-11-12 23:24:35,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 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) [2021-11-12 23:24:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2021-11-12 23:24:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-12 23:24:35,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:35,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:36,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:36,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:36,195 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:36,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:36,196 INFO L85 PathProgramCache]: Analyzing trace with hash 791583210, now seen corresponding path program 1 times [2021-11-12 23:24:36,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:36,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592925203] [2021-11-12 23:24:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:36,196 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:36,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:36,197 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:36,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:24:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:36,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:24:36,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:38,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:38,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:39,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:39,776 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:39,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592925203] [2021-11-12 23:24:39,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592925203] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:39,776 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:39,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-12 23:24:39,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770400194] [2021-11-12 23:24:39,777 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:39,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:24:39,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:39,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:24:39,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:24:39,778 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2021-11-12 23:24:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:39,867 INFO L93 Difference]: Finished difference Result 137 states and 167 transitions. [2021-11-12 23:24:39,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:24:39,869 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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 29 [2021-11-12 23:24:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:39,870 INFO L225 Difference]: With dead ends: 137 [2021-11-12 23:24:39,871 INFO L226 Difference]: Without dead ends: 75 [2021-11-12 23:24:39,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:24:39,872 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 12 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 80.58ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:39,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 663 Invalid, 36 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 29 Unchecked, 80.58ms Time] [2021-11-12 23:24:39,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-12 23:24:39,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2021-11-12 23:24:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.2) internal successors, (84), 70 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 88 transitions. [2021-11-12 23:24:39,881 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 88 transitions. Word has length 29 [2021-11-12 23:24:39,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:39,882 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 88 transitions. [2021-11-12 23:24:39,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2021-11-12 23:24:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 88 transitions. [2021-11-12 23:24:39,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-12 23:24:39,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:39,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:39,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:40,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:40,096 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:40,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:40,097 INFO L85 PathProgramCache]: Analyzing trace with hash -644112787, now seen corresponding path program 1 times [2021-11-12 23:24:40,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:40,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977705514] [2021-11-12 23:24:40,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:40,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:40,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:40,104 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:40,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 23:24:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:40,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:24:40,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:42,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:46,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:46,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977705514] [2021-11-12 23:24:46,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977705514] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:46,875 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:46,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-12 23:24:46,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544636425] [2021-11-12 23:24:46,876 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:46,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:24:46,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:46,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:24:46,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:24:46,878 INFO L87 Difference]: Start difference. First operand 74 states and 88 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:24:47,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:47,000 INFO L93 Difference]: Finished difference Result 128 states and 155 transitions. [2021-11-12 23:24:47,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:24:47,001 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2021-11-12 23:24:47,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:47,002 INFO L225 Difference]: With dead ends: 128 [2021-11-12 23:24:47,002 INFO L226 Difference]: Without dead ends: 74 [2021-11-12 23:24:47,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:24:47,003 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 8 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 114.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:47,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 518 Invalid, 39 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 31 Unchecked, 114.14ms Time] [2021-11-12 23:24:47,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-12 23:24:47,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-12 23:24:47,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 70 states have internal predecessors, (83), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:47,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2021-11-12 23:24:47,010 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 38 [2021-11-12 23:24:47,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:47,011 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2021-11-12 23:24:47,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:24:47,011 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2021-11-12 23:24:47,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 23:24:47,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:47,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:47,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:47,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:47,227 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:47,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:47,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1801889522, now seen corresponding path program 1 times [2021-11-12 23:24:47,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:47,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737343503] [2021-11-12 23:24:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:47,228 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:47,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:47,229 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:47,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 23:24:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:47,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:24:47,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:48,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:48,809 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:48,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737343503] [2021-11-12 23:24:48,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737343503] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:48,809 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:48,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:24:48,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697175655] [2021-11-12 23:24:48,810 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:48,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:24:48,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:48,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:24:48,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:24:48,811 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:50,997 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:24:53,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 23:24:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:53,256 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2021-11-12 23:24:53,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:24:53,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2021-11-12 23:24:53,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:53,316 INFO L225 Difference]: With dead ends: 82 [2021-11-12 23:24:53,317 INFO L226 Difference]: Without dead ends: 74 [2021-11-12 23:24:53,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:24:53,318 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 30 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4389.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.64ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4437.96ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:53,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 313 Invalid, 15 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 4437.96ms Time] [2021-11-12 23:24:53,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-12 23:24:53,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-12 23:24:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 70 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:53,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2021-11-12 23:24:53,326 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 43 [2021-11-12 23:24:53,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:53,327 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2021-11-12 23:24:53,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:24:53,327 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2021-11-12 23:24:53,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-12 23:24:53,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:53,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:53,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:53,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:53,545 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:53,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:53,545 INFO L85 PathProgramCache]: Analyzing trace with hash 345138875, now seen corresponding path program 1 times [2021-11-12 23:24:53,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:53,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521174243] [2021-11-12 23:24:53,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:53,545 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:53,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:53,546 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:53,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 23:24:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:54,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:24:54,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:57,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:25:07,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:07,604 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:25:07,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521174243] [2021-11-12 23:25:07,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521174243] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:07,605 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:07,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 13 [2021-11-12 23:25:07,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912745427] [2021-11-12 23:25:07,605 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:07,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:25:07,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:25:07,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:25:07,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:25:07,607 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:25:07,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:07,610 INFO L93 Difference]: Finished difference Result 74 states and 86 transitions. [2021-11-12 23:25:07,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:25:07,614 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-11-12 23:25:07,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:07,615 INFO L225 Difference]: With dead ends: 74 [2021-11-12 23:25:07,615 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:25:07,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:25:07,616 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:07,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 38 Invalid, 10 Unknown, 0 Unchecked, 0.14ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 10 Unchecked, 0.02ms Time] [2021-11-12 23:25:07,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:25:07,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:25:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:25:07,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-11-12 23:25:07,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:07,618 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:25:07,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:25:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:25:07,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:25:07,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:25:07,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:25:07,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:25:07,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:25:09,819 INFO L854 garLoopResultBuilder]: At program point L184(line 184) the Hoare annotation is: false [2021-11-12 23:25:09,820 INFO L858 garLoopResultBuilder]: For program point L184-1(line 184) no Hoare annotation was computed. [2021-11-12 23:25:09,820 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 151 155) no Hoare annotation was computed. [2021-11-12 23:25:09,820 INFO L854 garLoopResultBuilder]: At program point L151-2(lines 151 155) the Hoare annotation is: false [2021-11-12 23:25:09,821 INFO L858 garLoopResultBuilder]: For program point L151-3(lines 151 155) no Hoare annotation was computed. [2021-11-12 23:25:09,821 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 172) no Hoare annotation was computed. [2021-11-12 23:25:09,821 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 159 173) no Hoare annotation was computed. [2021-11-12 23:25:09,821 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:25:09,821 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 202 206) no Hoare annotation was computed. [2021-11-12 23:25:09,821 INFO L854 garLoopResultBuilder]: At program point L202-2(lines 202 206) the Hoare annotation is: false [2021-11-12 23:25:09,821 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-11-12 23:25:09,821 INFO L858 garLoopResultBuilder]: For program point L202-3(lines 202 206) no Hoare annotation was computed. [2021-11-12 23:25:09,822 INFO L854 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2021-11-12 23:25:09,822 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-12 23:25:09,822 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_hypotf_~x#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-12 23:25:09,822 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-11-12 23:25:09,822 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 239) no Hoare annotation was computed. [2021-11-12 23:25:09,822 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 187 191) no Hoare annotation was computed. [2021-11-12 23:25:09,822 INFO L854 garLoopResultBuilder]: At program point L187-2(lines 187 191) the Hoare annotation is: false [2021-11-12 23:25:09,822 INFO L858 garLoopResultBuilder]: For program point L187-3(lines 187 191) no Hoare annotation was computed. [2021-11-12 23:25:09,822 INFO L858 garLoopResultBuilder]: For program point L237(line 237) no Hoare annotation was computed. [2021-11-12 23:25:09,823 INFO L854 garLoopResultBuilder]: At program point L221(lines 213 222) the Hoare annotation is: (or (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) (and (not (= |ULTIMATE.start_isinf_float_#res#1| (_ bv0 32))) (not (bvsgt (bvadd |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvneg |ULTIMATE.start___ieee754_hypotf_~hb~0#1|)) (_ bv251658240 32))))) [2021-11-12 23:25:09,823 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 146) no Hoare annotation was computed. [2021-11-12 23:25:09,823 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 83 210) no Hoare annotation was computed. [2021-11-12 23:25:09,823 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:25:09,823 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 131) no Hoare annotation was computed. [2021-11-12 23:25:09,823 INFO L861 garLoopResultBuilder]: At program point L240(lines 224 241) the Hoare annotation is: true [2021-11-12 23:25:09,823 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 145) no Hoare annotation was computed. [2021-11-12 23:25:09,823 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 123 146) no Hoare annotation was computed. [2021-11-12 23:25:09,824 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 113) no Hoare annotation was computed. [2021-11-12 23:25:09,824 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 83 210) no Hoare annotation was computed. [2021-11-12 23:25:09,824 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-11-12 23:25:09,824 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2021-11-12 23:25:09,824 INFO L858 garLoopResultBuilder]: For program point L126-2(lines 124 131) no Hoare annotation was computed. [2021-11-12 23:25:09,825 INFO L854 garLoopResultBuilder]: At program point L93-2(lines 93 97) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80| (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|)))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|) |ULTIMATE.start___ieee754_hypotf_~ha~0#1|))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-12 23:25:09,825 INFO L858 garLoopResultBuilder]: For program point L93-3(lines 93 97) no Hoare annotation was computed. [2021-11-12 23:25:09,825 INFO L854 garLoopResultBuilder]: At program point L209(lines 83 210) the Hoare annotation is: (or (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27| (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27|) .cse0) (= |ULTIMATE.start___ieee754_hypotf_#res#1| (fp.add roundNearestTiesToEven (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (bvsgt (bvadd .cse1 (bvneg .cse0)) (_ bv251658240 32))))) (and (forall ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_14|) (_ bv2139095040 32)) (not (= |ULTIMATE.start___ieee754_hypotf_#res#1| (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_14|)))))) (not (bvsgt (bvadd |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvneg |ULTIMATE.start___ieee754_hypotf_~hb~0#1|)) (_ bv251658240 32))))) [2021-11-12 23:25:09,826 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 193 197) no Hoare annotation was computed. [2021-11-12 23:25:09,826 INFO L854 garLoopResultBuilder]: At program point L193-2(lines 193 197) the Hoare annotation is: false [2021-11-12 23:25:09,826 INFO L858 garLoopResultBuilder]: For program point L193-3(lines 193 197) no Hoare annotation was computed. [2021-11-12 23:25:09,826 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 23:25:09,826 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 200) no Hoare annotation was computed. [2021-11-12 23:25:09,827 INFO L858 garLoopResultBuilder]: For program point L177-2(lines 83 210) no Hoare annotation was computed. [2021-11-12 23:25:09,827 INFO L858 garLoopResultBuilder]: For program point L128-1(lines 128 129) no Hoare annotation was computed. [2021-11-12 23:25:09,827 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 178 182) no Hoare annotation was computed. [2021-11-12 23:25:09,827 INFO L854 garLoopResultBuilder]: At program point L178-2(lines 178 182) the Hoare annotation is: false [2021-11-12 23:25:09,827 INFO L858 garLoopResultBuilder]: For program point L178-3(lines 178 182) no Hoare annotation was computed. [2021-11-12 23:25:09,828 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 163 167) no Hoare annotation was computed. [2021-11-12 23:25:09,828 INFO L854 garLoopResultBuilder]: At program point L163-2(lines 163 167) the Hoare annotation is: false [2021-11-12 23:25:09,828 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 174) no Hoare annotation was computed. [2021-11-12 23:25:09,828 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 118) no Hoare annotation was computed. [2021-11-12 23:25:09,829 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 83 210) no Hoare annotation was computed. [2021-11-12 23:25:09,829 INFO L858 garLoopResultBuilder]: For program point L114-2(lines 83 210) no Hoare annotation was computed. [2021-11-12 23:25:09,829 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 23:25:09,829 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 237) no Hoare annotation was computed. [2021-11-12 23:25:09,829 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 173) no Hoare annotation was computed. [2021-11-12 23:25:09,830 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 108) no Hoare annotation was computed. [2021-11-12 23:25:09,830 INFO L858 garLoopResultBuilder]: For program point L215-1(lines 215 219) no Hoare annotation was computed. [2021-11-12 23:25:09,830 INFO L854 garLoopResultBuilder]: At program point L215-2(lines 215 219) the Hoare annotation is: (or (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27| (_ BitVec 32))) (let ((.cse0 (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) (= |ULTIMATE.start_isinf_float_~x#1| (fp.add roundNearestTiesToEven (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27|) .cse1) (bvsgt (bvadd .cse0 (bvneg .cse1)) (_ bv251658240 32))))) (and (forall ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_14|) (_ bv2139095040 32)) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_14|)) |ULTIMATE.start_isinf_float_~x#1|)))) (not (bvsgt (bvadd |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvneg |ULTIMATE.start___ieee754_hypotf_~hb~0#1|)) (_ bv251658240 32))))) [2021-11-12 23:25:09,830 INFO L858 garLoopResultBuilder]: For program point L215-3(lines 215 219) no Hoare annotation was computed. [2021-11-12 23:25:09,830 INFO L854 garLoopResultBuilder]: At program point L199(line 199) the Hoare annotation is: false [2021-11-12 23:25:09,831 INFO L858 garLoopResultBuilder]: For program point L199-1(line 199) no Hoare annotation was computed. [2021-11-12 23:25:09,831 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 173) no Hoare annotation was computed. [2021-11-12 23:25:09,831 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-11-12 23:25:09,831 INFO L861 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: true [2021-11-12 23:25:09,831 INFO L858 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-11-12 23:25:09,831 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-12 23:25:09,831 INFO L858 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-11-12 23:25:09,832 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-11-12 23:25:09,832 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-11-12 23:25:09,832 INFO L861 garLoopResultBuilder]: At program point __ieee754_sqrtfENTRY(lines 16 81) the Hoare annotation is: true [2021-11-12 23:25:09,832 INFO L858 garLoopResultBuilder]: For program point __ieee754_sqrtfFINAL(lines 16 81) no Hoare annotation was computed. [2021-11-12 23:25:09,832 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-11-12 23:25:09,832 INFO L858 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-11-12 23:25:09,832 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-11-12 23:25:09,832 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-11-12 23:25:09,832 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-12 23:25:09,833 INFO L858 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-11-12 23:25:09,833 INFO L858 garLoopResultBuilder]: For program point __ieee754_sqrtfEXIT(lines 16 81) no Hoare annotation was computed. [2021-11-12 23:25:09,833 INFO L861 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2021-11-12 23:25:09,833 INFO L858 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-11-12 23:25:09,833 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-11-12 23:25:09,833 INFO L861 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: true [2021-11-12 23:25:09,833 INFO L858 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-11-12 23:25:09,833 INFO L858 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-11-12 23:25:09,833 INFO L861 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: true [2021-11-12 23:25:09,833 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-11-12 23:25:09,834 INFO L858 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-11-12 23:25:09,834 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-11-12 23:25:09,837 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:09,838 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:25:09,844 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:25:09,847 INFO L158 Benchmark]: Toolchain (without parser) took 160619.64ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 32.9MB in the beginning and 33.6MB in the end (delta: -723.1kB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-11-12 23:25:09,847 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 54.5MB. Free memory is still 36.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:25:09,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.87ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 32.8MB in the beginning and 53.4MB in the end (delta: -20.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 23:25:09,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.14ms. Allocated memory is still 73.4MB. Free memory was 53.4MB in the beginning and 51.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:25:09,848 INFO L158 Benchmark]: Boogie Preprocessor took 85.35ms. Allocated memory is still 73.4MB. Free memory was 51.0MB in the beginning and 48.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:25:09,849 INFO L158 Benchmark]: RCFGBuilder took 1880.92ms. Allocated memory is still 73.4MB. Free memory was 48.5MB in the beginning and 49.4MB in the end (delta: -885.6kB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-11-12 23:25:09,849 INFO L158 Benchmark]: TraceAbstraction took 158024.61ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 33.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2021-11-12 23:25:09,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 54.5MB. Free memory is still 36.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.87ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 32.8MB in the beginning and 53.4MB in the end (delta: -20.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.14ms. Allocated memory is still 73.4MB. Free memory was 53.4MB in the beginning and 51.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.35ms. Allocated memory is still 73.4MB. Free memory was 51.0MB in the beginning and 48.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1880.92ms. Allocated memory is still 73.4MB. Free memory was 48.5MB in the beginning and 49.4MB in the end (delta: -885.6kB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 158024.61ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 33.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 237]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 157.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 18417.65ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 334 mSDsluCounter, 9230 SdHoareTripleChecker+Invalid, 18115.51ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 807 IncrementalHoareTripleChecker+Unchecked, 7974 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 248 IncrementalHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 1256 mSDtfsCounter, 248 mSolverCounterSat, 40.33ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 770 GetRequests, 613 SyntacticMatches, 9 SemanticMatches, 148 ConstructedPredicates, 2 IntricatePredicates, 4 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 90.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=7, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 107 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 85 PreInvPairs, 99 NumberOfFragments, 272 HoareAnnotationTreeSize, 85 FomulaSimplifications, 891 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 365 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 125.8s InterpolantComputationTime, 392 NumberOfCodeBlocks, 392 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 756 ConstructedInterpolants, 246 QuantifiedInterpolants, 7209 SizeOfPredicates, 115 NumberOfNonLiveVariables, 1460 ConjunctsInSsa, 161 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 23:25:10,068 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-12 23:25:10,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98eedcfe-af18-444c-954e-48072cdfe2a3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias