./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 fbb94f92326360d1b49e2127744a54ce104befba5614aa9d887afe6ba1b1edd0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:14:41,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:14:42,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:14:42,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:14:42,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:14:42,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:14:42,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:14:42,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:14:42,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:14:42,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:14:42,182 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:14:42,182 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:14:42,183 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:14:42,184 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:14:42,185 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:14:42,185 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:14:42,185 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:14:42,186 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:14:42,186 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:14:42,187 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:14:42,187 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:14:42,188 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:14:42,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:14:42,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:14:42,190 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:14:42,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:14:42,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:14:42,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:14:42,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:14:42,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:14:42,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:14:42,193 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:14:42,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:14:42,194 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:14:42,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:14:42,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:14:42,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:42,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:14:42,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:14:42,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:14:42,195 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:14:42,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:14:42,196 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:14:42,196 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:14:42,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:14:42,197 INFO L153 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_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb94f92326360d1b49e2127744a54ce104befba5614aa9d887afe6ba1b1edd0 [2023-11-19 04:14:42,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:14:42,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:14:42,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:14:42,582 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:14:42,583 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:14:42,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-19 04:14:45,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:14:45,818 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:14:45,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-19 04:14:45,828 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/data/c84da08c4/a36c78d5897f4846a5d153dca6861b49/FLAG5ec8762de [2023-11-19 04:14:45,846 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/data/c84da08c4/a36c78d5897f4846a5d153dca6861b49 [2023-11-19 04:14:45,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:14:45,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:14:45,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:45,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:14:45,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:14:45,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:45" (1/1) ... [2023-11-19 04:14:45,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7e2c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:45, skipping insertion in model container [2023-11-19 04:14:45,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:45" (1/1) ... [2023-11-19 04:14:45,896 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:14:46,051 WARN L240 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_10d33de3-a800-42bb-95b6-58bc801693e2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i[916,929] [2023-11-19 04:14:46,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:46,119 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:14:46,131 WARN L240 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_10d33de3-a800-42bb-95b6-58bc801693e2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i[916,929] [2023-11-19 04:14:46,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:46,183 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:14:46,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46 WrapperNode [2023-11-19 04:14:46,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:46,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:46,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:14:46,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:14:46,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,207 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,262 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-19 04:14:46,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:46,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:14:46,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:14:46,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:14:46,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:14:46,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:14:46,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:14:46,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:14:46,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (1/1) ... [2023-11-19 04:14:46,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:46,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:46,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:14:46,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:14:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:14:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:14:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:14:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:14:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:14:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:14:46,566 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:14:46,569 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:14:46,991 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:14:47,125 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:14:47,125 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:14:47,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:47 BoogieIcfgContainer [2023-11-19 04:14:47,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:14:47,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:14:47,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:14:47,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:14:47,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:14:45" (1/3) ... [2023-11-19 04:14:47,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474002cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:47, skipping insertion in model container [2023-11-19 04:14:47,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:46" (2/3) ... [2023-11-19 04:14:47,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474002cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:47, skipping insertion in model container [2023-11-19 04:14:47,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:47" (3/3) ... [2023-11-19 04:14:47,141 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-19 04:14:47,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:14:47,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:14:47,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:14:47,221 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25d17045, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:14:47,222 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:14:47,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 04:14:47,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 04:14:47,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:47,237 INFO L195 NwaCegarLoop]: trace histogram [16, 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] [2023-11-19 04:14:47,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:47,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:47,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1416328926, now seen corresponding path program 1 times [2023-11-19 04:14:47,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:47,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459868228] [2023-11-19 04:14:47,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:47,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:14:47,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:14:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:14:47,851 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:14:47,857 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:14:47,858 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:14:47,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:14:47,867 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:14:47,877 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:14:47,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:14:47 BoogieIcfgContainer [2023-11-19 04:14:47,961 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:14:47,962 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:14:47,962 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:14:47,963 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:14:47,963 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:47" (3/4) ... [2023-11-19 04:14:47,965 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:14:47,972 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:14:47,974 INFO L158 Benchmark]: Toolchain (without parser) took 2118.16ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 102.2MB in the beginning and 111.2MB in the end (delta: -9.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2023-11-19 04:14:47,974 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:14:47,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.00ms. Allocated memory is still 136.3MB. Free memory was 101.7MB in the beginning and 88.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:14:47,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.83ms. Allocated memory is still 136.3MB. Free memory was 88.8MB in the beginning and 84.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:14:47,977 INFO L158 Benchmark]: Boogie Preprocessor took 40.66ms. Allocated memory is still 136.3MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:14:47,978 INFO L158 Benchmark]: RCFGBuilder took 825.37ms. Allocated memory is still 136.3MB. Free memory was 82.5MB in the beginning and 72.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:14:47,978 INFO L158 Benchmark]: TraceAbstraction took 828.71ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 71.7MB in the beginning and 111.2MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:14:47,979 INFO L158 Benchmark]: Witness Printer took 10.16ms. Allocated memory is still 163.6MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:14:47,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.00ms. Allocated memory is still 136.3MB. Free memory was 101.7MB in the beginning and 88.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.83ms. Allocated memory is still 136.3MB. Free memory was 88.8MB in the beginning and 84.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.66ms. Allocated memory is still 136.3MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 825.37ms. Allocated memory is still 136.3MB. Free memory was 82.5MB in the beginning and 72.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 828.71ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 71.7MB in the beginning and 111.2MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 10.16ms. Allocated memory is still 163.6MB. Free memory is still 111.2MB. 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: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 50, overapproximation of shiftRight at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] signed long int var_1_2 = 1000000000; [L24] signed long int var_1_3 = 1000; [L25] unsigned short int var_1_4 = 256; [L26] unsigned short int var_1_5 = 4; [L27] unsigned short int var_1_6 = 10; [L28] signed short int var_1_8 = 128; [L29] signed short int var_1_9 = -2; [L30] unsigned char var_1_10 = 0; [L31] unsigned char var_1_11 = 0; [L32] unsigned char var_1_12 = 0; [L33] unsigned char var_1_13 = 1; [L97] isInitial = 1 [L98] FCALL initially() [L99] COND TRUE 1 [L100] FCALL updateLastVariables() [L101] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_long() [L66] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L67] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L68] var_1_3 = __VERIFIER_nondet_long() [L69] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L70] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L71] var_1_4 = __VERIFIER_nondet_ushort() [L72] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L73] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L74] var_1_5 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=10, var_1_8=128, var_1_9=-2] [L76] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=10, var_1_8=128, var_1_9=-2] [L77] var_1_6 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=-2] [L79] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=-2] [L80] var_1_9 = __VERIFIER_nondet_short() [L81] CALL assume_abort_if_not(var_1_9 >= -32766) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_9 >= -32766) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L82] CALL assume_abort_if_not(var_1_9 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_9 <= 32766) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L83] var_1_11 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L85] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L86] var_1_12 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L88] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=128, var_1_9=0] [L101] RET updateVariables() [L102] CALL step() [L37] var_1_8 = ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) [L38] EXPR 50 >> var_1_4 [L38] COND FALSE !((50 >> var_1_4) <= var_1_8) [L41] var_1_10 = (! var_1_11) [L43] COND TRUE ! var_1_12 [L44] COND TRUE var_1_4 >= ((((var_1_6) < (var_1_8)) ? (var_1_6) : (var_1_8))) [L45] var_1_13 = (var_1_10 && var_1_11) [L50] COND FALSE !(var_1_2 >= 64.5f) [L61] var_1_1 = 50 [L102] RET step() [L103] CALL, EXPR property() [L93] EXPR (((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11)))) [L93-L94] return ((((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11))))) && ((! var_1_12) ? ((var_1_4 >= ((((var_1_6) < (var_1_8)) ? (var_1_6) : (var_1_8)))) ? (var_1_13 == ((unsigned char) (var_1_10 && var_1_11))) : (var_1_13 == ((unsigned char) var_1_11))) : 1) ; [L103] RET, EXPR property() [L103] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_2=-1, var_1_3=0, var_1_4=51, var_1_5=50, var_1_6=4, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:14:48,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 fbb94f92326360d1b49e2127744a54ce104befba5614aa9d887afe6ba1b1edd0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:14:50,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:14:50,677 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:14:50,685 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:14:50,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:14:50,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:14:50,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:14:50,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:14:50,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:14:50,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:14:50,740 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:14:50,741 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:14:50,741 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:14:50,743 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:14:50,744 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:14:50,744 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:14:50,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:14:50,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:14:50,746 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:14:50,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:14:50,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:14:50,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:14:50,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:14:50,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:14:50,749 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:14:50,750 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:14:50,750 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:14:50,751 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:14:50,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:14:50,752 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:14:50,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:14:50,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:14:50,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:14:50,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:50,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:14:50,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:14:50,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:14:50,756 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:14:50,756 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:14:50,757 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:14:50,758 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:14:50,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:14:50,758 INFO L153 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_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb94f92326360d1b49e2127744a54ce104befba5614aa9d887afe6ba1b1edd0 [2023-11-19 04:14:51,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:14:51,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:14:51,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:14:51,224 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:14:51,224 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:14:51,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-19 04:14:54,316 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:14:54,585 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:14:54,586 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-19 04:14:54,610 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/data/fb0aa7bf2/4fdc1b229d354989b0d6222dee002087/FLAGa1ac925d3 [2023-11-19 04:14:54,637 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/data/fb0aa7bf2/4fdc1b229d354989b0d6222dee002087 [2023-11-19 04:14:54,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:14:54,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:14:54,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:54,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:14:54,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:14:54,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:54" (1/1) ... [2023-11-19 04:14:54,657 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3225ce3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:54, skipping insertion in model container [2023-11-19 04:14:54,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:54" (1/1) ... [2023-11-19 04:14:54,702 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:14:54,884 WARN L240 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_10d33de3-a800-42bb-95b6-58bc801693e2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i[916,929] [2023-11-19 04:14:54,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:54,989 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:14:55,005 WARN L240 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_10d33de3-a800-42bb-95b6-58bc801693e2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i[916,929] [2023-11-19 04:14:55,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:55,076 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:14:55,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55 WrapperNode [2023-11-19 04:14:55,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:55,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:55,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:14:55,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:14:55,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,162 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-11-19 04:14:55,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:55,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:14:55,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:14:55,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:14:55,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:14:55,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:14:55,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:14:55,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:14:55,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (1/1) ... [2023-11-19 04:14:55,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:55,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:55,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:14:55,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:14:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:14:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:14:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:14:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:14:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:14:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:14:55,405 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:14:55,407 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:14:56,136 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:14:56,150 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:14:56,150 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:14:56,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:56 BoogieIcfgContainer [2023-11-19 04:14:56,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:14:56,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:14:56,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:14:56,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:14:56,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:14:54" (1/3) ... [2023-11-19 04:14:56,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524d89aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:56, skipping insertion in model container [2023-11-19 04:14:56,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:55" (2/3) ... [2023-11-19 04:14:56,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524d89aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:56, skipping insertion in model container [2023-11-19 04:14:56,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:56" (3/3) ... [2023-11-19 04:14:56,164 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-19 04:14:56,186 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:14:56,186 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:14:56,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:14:56,262 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4897fe07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:14:56,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:14:56,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 04:14:56,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 04:14:56,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:56,287 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:56,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:56,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:56,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1736376752, now seen corresponding path program 1 times [2023-11-19 04:14:56,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:56,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565217289] [2023-11-19 04:14:56,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:56,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:56,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:56,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:56,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:14:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:56,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:14:56,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-19 04:14:56,685 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:14:56,685 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:14:56,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565217289] [2023-11-19 04:14:56,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565217289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:56,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:56,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:14:56,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804207979] [2023-11-19 04:14:56,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:56,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:14:56,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:14:56,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:14:56,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:14:56,738 INFO L87 Difference]: Start difference. First operand has 49 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 04:14:56,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:56,779 INFO L93 Difference]: Finished difference Result 91 states and 156 transitions. [2023-11-19 04:14:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:14:56,782 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2023-11-19 04:14:56,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:56,791 INFO L225 Difference]: With dead ends: 91 [2023-11-19 04:14:56,792 INFO L226 Difference]: Without dead ends: 45 [2023-11-19 04:14:56,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:14:56,800 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:56,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:14:56,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-19 04:14:56,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-19 04:14:56,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 04:14:56,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2023-11-19 04:14:56,858 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 66 transitions. Word has length 100 [2023-11-19 04:14:56,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:56,859 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-19 04:14:56,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 04:14:56,861 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2023-11-19 04:14:56,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 04:14:56,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:56,867 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:56,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:14:57,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:57,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:57,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:57,073 INFO L85 PathProgramCache]: Analyzing trace with hash -3284560, now seen corresponding path program 1 times [2023-11-19 04:14:57,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:57,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051475140] [2023-11-19 04:14:57,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:57,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:57,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:57,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:57,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:14:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:57,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:14:57,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 04:14:57,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:14:57,339 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:14:57,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051475140] [2023-11-19 04:14:57,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051475140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:57,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:57,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:14:57,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483671713] [2023-11-19 04:14:57,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:57,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:14:57,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:14:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:14:57,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:14:57,344 INFO L87 Difference]: Start difference. First operand 45 states and 66 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 04:14:57,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:57,764 INFO L93 Difference]: Finished difference Result 95 states and 136 transitions. [2023-11-19 04:14:57,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 04:14:57,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-11-19 04:14:57,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:57,773 INFO L225 Difference]: With dead ends: 95 [2023-11-19 04:14:57,773 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 04:14:57,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:14:57,775 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 53 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:57,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 99 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:14:57,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 04:14:57,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2023-11-19 04:14:57,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 04:14:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2023-11-19 04:14:57,789 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 100 [2023-11-19 04:14:57,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:57,790 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 68 transitions. [2023-11-19 04:14:57,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 04:14:57,790 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2023-11-19 04:14:57,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 04:14:57,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:57,792 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:57,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:14:57,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:57,996 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:57,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:57,997 INFO L85 PathProgramCache]: Analyzing trace with hash 756332976, now seen corresponding path program 1 times [2023-11-19 04:14:57,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:57,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291838687] [2023-11-19 04:14:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:57,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:57,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:58,001 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:58,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10d33de3-a800-42bb-95b6-58bc801693e2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:14:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:58,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 04:14:58,139 INFO L285 TraceCheckSpWp]: Computing forward predicates...