./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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_53f0bc28-e4aa-43af-b498-59e4081c1de2/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 e5d9c7ed889b184267cd622b8cedf0f63c83decc897ab4d06bfed69bff61102d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:09:30,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:09:30,903 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:09:30,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:09:30,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:09:30,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:09:30,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:09:30,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:09:30,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:09:30,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:09:30,937 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:09:30,937 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:09:30,938 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:09:30,938 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:09:30,939 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:09:30,940 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:09:30,940 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:09:30,941 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:09:30,941 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:09:30,942 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:09:30,942 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:09:30,943 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:09:30,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:09:30,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:09:30,945 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:09:30,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:09:30,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:09:30,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:09:30,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:09:30,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:09:30,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:09:30,948 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:09:30,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:09:30,949 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:09:30,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:09:30,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:09:30,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:30,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:09:30,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:09:30,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:09:30,952 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:09:30,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:09:30,953 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:09:30,953 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:09:30,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:09:30,954 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_53f0bc28-e4aa-43af-b498-59e4081c1de2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5d9c7ed889b184267cd622b8cedf0f63c83decc897ab4d06bfed69bff61102d [2023-11-19 05:09:31,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:09:31,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:09:31,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:09:31,272 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:09:31,273 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:09:31,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i [2023-11-19 05:09:34,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:09:34,675 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:09:34,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i [2023-11-19 05:09:34,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/data/5341bad18/a0f37285a14d4e73aff1b26ebbf4fad6/FLAGb1c1b8fdd [2023-11-19 05:09:34,700 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/data/5341bad18/a0f37285a14d4e73aff1b26ebbf4fad6 [2023-11-19 05:09:34,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:09:34,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:09:34,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:34,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:09:34,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:09:34,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:34" (1/1) ... [2023-11-19 05:09:34,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd635db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:34, skipping insertion in model container [2023-11-19 05:09:34,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:34" (1/1) ... [2023-11-19 05:09:34,742 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:09:34,898 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_53f0bc28-e4aa-43af-b498-59e4081c1de2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i[915,928] [2023-11-19 05:09:34,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:34,960 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:09:34,972 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_53f0bc28-e4aa-43af-b498-59e4081c1de2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i[915,928] [2023-11-19 05:09:34,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:35,013 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:09:35,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35 WrapperNode [2023-11-19 05:09:35,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:35,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:35,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:09:35,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:09:35,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,062 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-19 05:09:35,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:35,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:09:35,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:09:35,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:09:35,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:09:35,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:09:35,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:09:35,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:09:35,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (1/1) ... [2023-11-19 05:09:35,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:35,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:35,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:09:35,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:09:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:09:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:09:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:09:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:09:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:09:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:09:35,290 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:09:35,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:09:35,594 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:09:35,869 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:09:35,869 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:09:35,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:35 BoogieIcfgContainer [2023-11-19 05:09:35,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:09:35,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:09:35,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:09:35,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:09:35,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:09:34" (1/3) ... [2023-11-19 05:09:35,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1edb2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:35, skipping insertion in model container [2023-11-19 05:09:35,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:35" (2/3) ... [2023-11-19 05:09:35,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1edb2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:35, skipping insertion in model container [2023-11-19 05:09:35,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:35" (3/3) ... [2023-11-19 05:09:35,883 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-51.i [2023-11-19 05:09:35,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:09:35,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:09:35,952 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:09:35,959 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;@622f2dd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:09:35,959 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:09:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:09:35,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 05:09:35,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:35,974 INFO L195 NwaCegarLoop]: trace histogram [12, 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 05:09:35,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:09:35,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:35,980 INFO L85 PathProgramCache]: Analyzing trace with hash 239946350, now seen corresponding path program 1 times [2023-11-19 05:09:35,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:09:35,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833676454] [2023-11-19 05:09:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:35,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:09:36,126 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:09:36,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1780264873] [2023-11-19 05:09:36,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:36,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:09:36,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:36,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:09:36,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:09:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:09:36,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:09:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:09:36,425 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:09:36,428 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:09:36,429 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:09:36,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:09:36,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:09:36,655 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:09:36,658 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:09:36,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:09:36 BoogieIcfgContainer [2023-11-19 05:09:36,714 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:09:36,715 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:09:36,715 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:09:36,716 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:09:36,716 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:35" (3/4) ... [2023-11-19 05:09:36,718 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:09:36,719 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:09:36,720 INFO L158 Benchmark]: Toolchain (without parser) took 2015.48ms. Allocated memory is still 151.0MB. Free memory was 107.8MB in the beginning and 85.8MB in the end (delta: 22.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-11-19 05:09:36,721 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:09:36,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.95ms. Allocated memory is still 151.0MB. Free memory was 107.8MB in the beginning and 95.7MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:09:36,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.96ms. Allocated memory is still 151.0MB. Free memory was 95.7MB in the beginning and 93.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:09:36,723 INFO L158 Benchmark]: Boogie Preprocessor took 30.63ms. Allocated memory is still 151.0MB. Free memory was 93.5MB in the beginning and 92.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:09:36,724 INFO L158 Benchmark]: RCFGBuilder took 779.24ms. Allocated memory is still 151.0MB. Free memory was 92.2MB in the beginning and 113.9MB in the end (delta: -21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 05:09:36,724 INFO L158 Benchmark]: TraceAbstraction took 838.14ms. Allocated memory is still 151.0MB. Free memory was 113.6MB in the beginning and 86.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 05:09:36,725 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 151.0MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:09:36,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.95ms. Allocated memory is still 151.0MB. Free memory was 107.8MB in the beginning and 95.7MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.96ms. Allocated memory is still 151.0MB. Free memory was 95.7MB in the beginning and 93.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.63ms. Allocated memory is still 151.0MB. Free memory was 93.5MB in the beginning and 92.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 779.24ms. Allocated memory is still 151.0MB. Free memory was 92.2MB in the beginning and 113.9MB in the end (delta: -21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 838.14ms. Allocated memory is still 151.0MB. Free memory was 113.6MB in the beginning and 86.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 151.0MB. Free memory is still 85.8MB. 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 someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someUnaryDOUBLEoperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 10.8; [L23] unsigned char var_1_2 = 0; [L24] signed short int var_1_5 = -16; [L25] double var_1_6 = 100.01; [L26] unsigned short int var_1_7 = 50; [L27] signed short int var_1_8 = 5; [L28] unsigned short int var_1_9 = 256; [L29] signed long int var_1_10 = -100; [L30] unsigned long int var_1_12 = 10000000; [L31] unsigned short int var_1_13 = 2; [L32] unsigned short int var_1_14 = 4; [L33] double var_1_15 = 4.5; [L89] isInitial = 1 [L90] FCALL initially() [L91] COND TRUE 1 [L92] FCALL updateLastVariables() [L93] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L65] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L66] var_1_5 = __VERIFIER_nondet_short() [L67] CALL assume_abort_if_not(var_1_5 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 >= -32768) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L68] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L69] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L70] var_1_6 = __VERIFIER_nondet_double() [L71] CALL assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=5, var_1_9=256] [L72] var_1_8 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_8 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_8 >= -32767) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=256] [L74] CALL assume_abort_if_not(var_1_8 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_8 <= 32767) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=256] [L75] var_1_9 = __VERIFIER_nondet_ushort() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_9 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 <= 32767) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] [L78] var_1_14 = __VERIFIER_nondet_ushort() [L79] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=0, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=0, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_14 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=0, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_14 <= 65534) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=0, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] [L93] RET updateVariables() [L94] CALL step() [L37] COND FALSE !(! (var_1_5 >= ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) [L40] var_1_12 = var_1_9 [L41] var_1_13 = var_1_14 [L42] var_1_15 = var_1_6 [L43] unsigned long int stepLocal_0 = var_1_12; [L44] COND FALSE !(\read(var_1_2)) [L51] var_1_1 = var_1_6 [L53] unsigned char stepLocal_1 = (var_1_6 * var_1_15) >= var_1_1; [L54] COND FALSE !(stepLocal_1 || var_1_2) [L59] var_1_10 = -1 [L94] RET step() [L95] CALL, EXPR property() [L85-L86] return (((((var_1_2 ? ((var_1_12 >= (var_1_12 / var_1_5)) ? (var_1_1 == ((double) ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))))) : (var_1_1 == ((double) var_1_6))) : (var_1_1 == ((double) var_1_6))) && ((! (var_1_5 >= ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) ? (var_1_7 == ((unsigned short int) (var_1_9 + 1))) : 1)) && ((((var_1_6 * var_1_15) >= var_1_1) || var_1_2) ? ((var_1_6 <= var_1_1) ? (var_1_10 == ((signed long int) var_1_9)) : 1) : (var_1_10 == ((signed long int) -1)))) && (var_1_12 == ((unsigned long int) var_1_9))) && (var_1_13 == ((unsigned short int) var_1_14))) && (var_1_15 == ((double) var_1_6)) ; [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_6=2, var_1_7=50, var_1_8=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 12, 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=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 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 05:09:36,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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_53f0bc28-e4aa-43af-b498-59e4081c1de2/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 e5d9c7ed889b184267cd622b8cedf0f63c83decc897ab4d06bfed69bff61102d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:09:39,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:09:39,663 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:09:39,671 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:09:39,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:09:39,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:09:39,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:09:39,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:09:39,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:09:39,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:09:39,725 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:09:39,725 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:09:39,726 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:09:39,727 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:09:39,728 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:09:39,728 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:09:39,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:09:39,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:09:39,730 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:09:39,731 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:09:39,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:09:39,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:09:39,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:09:39,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:09:39,733 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:09:39,734 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:09:39,734 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:09:39,734 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:09:39,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:09:39,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:09:39,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:09:39,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:09:39,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:09:39,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:39,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:09:39,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:09:39,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:09:39,738 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:09:39,738 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:09:39,739 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:09:39,740 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:09:39,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:09:39,740 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_53f0bc28-e4aa-43af-b498-59e4081c1de2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5d9c7ed889b184267cd622b8cedf0f63c83decc897ab4d06bfed69bff61102d [2023-11-19 05:09:40,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:09:40,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:09:40,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:09:40,178 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:09:40,178 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:09:40,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i [2023-11-19 05:09:43,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:09:43,647 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:09:43,648 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i [2023-11-19 05:09:43,659 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/data/a082908ed/46d84c9d6b6349e08b2a82b49a36e108/FLAGa3d50f1a6 [2023-11-19 05:09:43,674 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/data/a082908ed/46d84c9d6b6349e08b2a82b49a36e108 [2023-11-19 05:09:43,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:09:43,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:09:43,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:43,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:09:43,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:09:43,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:43" (1/1) ... [2023-11-19 05:09:43,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b72dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:43, skipping insertion in model container [2023-11-19 05:09:43,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:43" (1/1) ... [2023-11-19 05:09:43,729 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:09:43,917 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_53f0bc28-e4aa-43af-b498-59e4081c1de2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i[915,928] [2023-11-19 05:09:43,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:44,010 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:09:44,027 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_53f0bc28-e4aa-43af-b498-59e4081c1de2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-51.i[915,928] [2023-11-19 05:09:44,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:44,069 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:09:44,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44 WrapperNode [2023-11-19 05:09:44,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:44,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:44,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:09:44,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:09:44,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,144 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2023-11-19 05:09:44,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:44,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:09:44,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:09:44,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:09:44,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,184 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:09:44,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:09:44,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:09:44,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:09:44,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (1/1) ... [2023-11-19 05:09:44,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:44,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:44,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:09:44,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:09:44,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:09:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:09:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:09:44,344 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:09:44,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:09:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:09:44,445 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:09:44,447 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:09:48,917 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:09:48,929 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:09:48,930 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:09:48,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:48 BoogieIcfgContainer [2023-11-19 05:09:48,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:09:48,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:09:48,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:09:48,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:09:48,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:09:43" (1/3) ... [2023-11-19 05:09:48,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec40bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:48, skipping insertion in model container [2023-11-19 05:09:48,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:44" (2/3) ... [2023-11-19 05:09:48,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec40bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:48, skipping insertion in model container [2023-11-19 05:09:48,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:48" (3/3) ... [2023-11-19 05:09:48,943 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-51.i [2023-11-19 05:09:48,959 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:09:48,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:09:49,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:09:49,015 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;@29dca099, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:09:49,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:09:49,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:09:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 05:09:49,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:49,033 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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 05:09:49,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:09:49,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:49,039 INFO L85 PathProgramCache]: Analyzing trace with hash -2079178925, now seen corresponding path program 1 times [2023-11-19 05:09:49,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:09:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139668726] [2023-11-19 05:09:49,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:49,054 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 05:09:49,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:09:49,060 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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 05:09:49,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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 05:09:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:09:49,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:09:49,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:09:49,500 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-19 05:09:49,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:09:49,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:09:49,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139668726] [2023-11-19 05:09:49,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139668726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:09:49,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:09:49,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:09:49,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900870534] [2023-11-19 05:09:49,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:09:49,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:09:49,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:09:49,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:09:49,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:09:49,569 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:09:49,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:09:49,598 INFO L93 Difference]: Finished difference Result 81 states and 132 transitions. [2023-11-19 05:09:49,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:09:49,602 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2023-11-19 05:09:49,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:09:49,608 INFO L225 Difference]: With dead ends: 81 [2023-11-19 05:09:49,608 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 05:09:49,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 79 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 05:09:49,615 INFO L413 NwaCegarLoop]: 56 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, 56 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 05:09:49,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:09:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 05:09:49,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 05:09:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:09:49,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2023-11-19 05:09:49,661 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 80 [2023-11-19 05:09:49,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:09:49,662 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2023-11-19 05:09:49,662 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:09:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2023-11-19 05:09:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 05:09:49,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:49,666 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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 05:09:49,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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 05:09:49,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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 05:09:49,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:09:49,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:49,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1174052721, now seen corresponding path program 1 times [2023-11-19 05:09:49,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:09:49,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752254662] [2023-11-19 05:09:49,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:49,886 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 05:09:49,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:09:49,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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 05:09:49,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f0bc28-e4aa-43af-b498-59e4081c1de2/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 05:09:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:09:50,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 05:09:50,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:10:12,225 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ zero_extend 16) c_~var_1_9~0))) (and (let ((.cse0 (fp.geq (fp.mul c_currentRoundingMode c_~var_1_6~0 c_~var_1_15~0) c_~var_1_1~0))) (or (and (= (_ bv1 8) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) .cse0) (and (not .cse0) (= |c_ULTIMATE.start_step_~stepLocal_1~0#1| (_ bv0 8))))) (= c_~var_1_1~0 c_~var_1_6~0) (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.geq c_~var_1_6~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1))) (fp.leq c_~var_1_6~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse2)))) (and (fp.geq c_~var_1_6~0 ((_ to_fp 11 53) c_currentRoundingMode .cse2)) (fp.leq c_~var_1_6~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1))))) (= (_ bv0 8) c_~var_1_2~0) (= .cse3 c_~var_1_12~0) (= ((_ extract 15 0) (bvadd .cse3 (_ bv1 32))) c_~var_1_7~0) (= c_~var_1_13~0 c_~var_1_14~0) (= c_currentRoundingMode roundNearestTiesToEven) (= c_~var_1_15~0 c_~var_1_6~0))) is different from true [2023-11-19 05:10:33,476 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 16) c_~var_1_9~0))) (and (fp.geq c_~var_1_6~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_1~0 c_~var_1_6~0) (= (_ bv0 8) c_~var_1_2~0) (= .cse0 c_~var_1_12~0) (not (fp.geq (fp.mul c_currentRoundingMode c_~var_1_6~0 c_~var_1_15~0) c_~var_1_1~0)) (= (_ bv0 32) (bvadd c_~var_1_10~0 (_ bv1 32))) (= ((_ extract 15 0) (bvadd .cse0 (_ bv1 32))) c_~var_1_7~0) (= c_~var_1_13~0 c_~var_1_14~0) (= c_currentRoundingMode roundNearestTiesToEven) (= c_~var_1_15~0 c_~var_1_6~0))) is different from true