./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire --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 f4c12887b518c30807abd8d1f5e8bfcee830c9bbeabadce2ed262c9ce9e837ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:18,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:18,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:33:18,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:18,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:18,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:18,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:18,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:18,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:18,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:18,880 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:18,881 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:18,882 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:18,884 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:18,884 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:18,885 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:18,885 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:18,886 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:18,886 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:18,887 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:18,888 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:18,889 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:18,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:18,890 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:18,891 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:18,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:18,892 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:18,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:18,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:18,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:18,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:18,896 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:18,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:18,896 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:18,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:18,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:18,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:18,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:18,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:18,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:18,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:18,920 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:18,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:18,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:18,921 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:18,922 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:18,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:18,922 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_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4c12887b518c30807abd8d1f5e8bfcee830c9bbeabadce2ed262c9ce9e837ab [2023-11-23 20:33:19,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:19,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:19,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:19,356 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:19,356 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:19,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i [2023-11-23 20:33:22,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:22,778 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:22,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i [2023-11-23 20:33:22,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/data/ce0701ea3/203c7a369c904a51aa22dbcb6fa52661/FLAG445a9208b [2023-11-23 20:33:22,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/data/ce0701ea3/203c7a369c904a51aa22dbcb6fa52661 [2023-11-23 20:33:22,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:22,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:22,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:22,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:22,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:22,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:22" (1/1) ... [2023-11-23 20:33:22,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a1fe171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:22, skipping insertion in model container [2023-11-23 20:33:22,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:22" (1/1) ... [2023-11-23 20:33:22,885 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:23,086 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_eb93b792-70b5-400d-8544-dadadc5dfc22/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i[917,930] [2023-11-23 20:33:23,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:23,186 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:23,200 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_eb93b792-70b5-400d-8544-dadadc5dfc22/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i[917,930] [2023-11-23 20:33:23,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:23,243 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:23,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23 WrapperNode [2023-11-23 20:33:23,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:23,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:23,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:23,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:23,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,321 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2023-11-23 20:33:23,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:23,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:23,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:23,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:23,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:23,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:23,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:23,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:23,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (1/1) ... [2023-11-23 20:33:23,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:23,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:23,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:23,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:23,526 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:23,528 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:23,910 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:24,142 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:24,143 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:24,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:24 BoogieIcfgContainer [2023-11-23 20:33:24,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:24,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:24,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:24,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:24,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:22" (1/3) ... [2023-11-23 20:33:24,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dbae9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:24, skipping insertion in model container [2023-11-23 20:33:24,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:23" (2/3) ... [2023-11-23 20:33:24,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dbae9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:24, skipping insertion in model container [2023-11-23 20:33:24,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:24" (3/3) ... [2023-11-23 20:33:24,155 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-97.i [2023-11-23 20:33:24,176 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:24,176 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:24,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:24,233 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;@773ea1e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:24,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 20:33:24,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 20:33:24,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:24,258 INFO L195 NwaCegarLoop]: trace histogram [17, 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] [2023-11-23 20:33:24,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:24,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:24,266 INFO L85 PathProgramCache]: Analyzing trace with hash 253978279, now seen corresponding path program 1 times [2023-11-23 20:33:24,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:24,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32141189] [2023-11-23 20:33:24,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:24,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:24,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:33:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:24,991 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:33:24,993 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:33:24,995 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:33:24,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:33:25,002 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:33:25,018 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:33:25,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:33:25 BoogieIcfgContainer [2023-11-23 20:33:25,109 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:33:25,111 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:33:25,112 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:33:25,112 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:33:25,113 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:24" (3/4) ... [2023-11-23 20:33:25,117 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:33:25,118 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:33:25,120 INFO L158 Benchmark]: Toolchain (without parser) took 2310.37ms. Allocated memory is still 169.9MB. Free memory was 138.5MB in the beginning and 135.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2023-11-23 20:33:25,121 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory was 98.3MB in the beginning and 98.1MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:25,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.70ms. Allocated memory is still 169.9MB. Free memory was 138.3MB in the beginning and 131.1MB in the end (delta: 7.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2023-11-23 20:33:25,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.94ms. Allocated memory is still 169.9MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:25,125 INFO L158 Benchmark]: Boogie Preprocessor took 39.00ms. Allocated memory is still 169.9MB. Free memory was 129.0MB in the beginning and 127.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:25,130 INFO L158 Benchmark]: RCFGBuilder took 783.26ms. Allocated memory is still 169.9MB. Free memory was 127.6MB in the beginning and 111.8MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:33:25,131 INFO L158 Benchmark]: TraceAbstraction took 961.63ms. Allocated memory is still 169.9MB. Free memory was 111.0MB in the beginning and 135.2MB in the end (delta: -24.2MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2023-11-23 20:33:25,133 INFO L158 Benchmark]: Witness Printer took 6.93ms. Allocated memory is still 169.9MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:25,142 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory was 98.3MB in the beginning and 98.1MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.70ms. Allocated memory is still 169.9MB. Free memory was 138.3MB in the beginning and 131.1MB in the end (delta: 7.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.94ms. Allocated memory is still 169.9MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.00ms. Allocated memory is still 169.9MB. Free memory was 129.0MB in the beginning and 127.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 783.26ms. Allocated memory is still 169.9MB. Free memory was 127.6MB in the beginning and 111.8MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 961.63ms. Allocated memory is still 169.9MB. Free memory was 111.0MB in the beginning and 135.2MB in the end (delta: -24.2MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Witness Printer took 6.93ms. Allocated memory is still 169.9MB. Free memory is still 135.2MB. 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 43, overapproximation of bitwiseOr at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] signed short int var_1_7 = 32; [L24] signed short int var_1_8 = 20113; [L25] signed short int var_1_9 = 100; [L26] signed char var_1_10 = 100; [L27] signed char var_1_11 = -1; [L28] signed char var_1_12 = 16; [L29] unsigned char var_1_13 = 1; [L30] unsigned char var_1_15 = 0; [L31] unsigned char var_1_16 = 1; [L32] unsigned short int var_1_18 = 10; [L33] unsigned short int var_1_19 = 256; [L34] float var_1_20 = 32.5; [L35] float var_1_21 = 127.4; [L36] signed short int var_1_22 = 128; [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] FCALL updateLastVariables() [L108] CALL updateVariables() [L70] var_1_7 = __VERIFIER_nondet_short() [L71] CALL assume_abort_if_not(var_1_7 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 >= -1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=20113, var_1_9=100] [L72] CALL assume_abort_if_not(var_1_7 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_7 <= 32766) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=20113, var_1_9=100] [L73] var_1_8 = __VERIFIER_nondet_short() [L74] CALL assume_abort_if_not(var_1_8 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=100] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_8 >= 16383) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=100] [L75] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=100] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=100] [L76] var_1_9 = __VERIFIER_nondet_short() [L77] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L78] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L79] var_1_11 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L81] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L82] var_1_12 = __VERIFIER_nondet_char() [L83] CALL assume_abort_if_not(var_1_12 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_12 >= -31) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L84] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L85] var_1_15 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L87] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L88] var_1_16 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L90] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L91] var_1_19 = __VERIFIER_nondet_ushort() [L92] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L93] CALL assume_abort_if_not(var_1_19 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=8, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_19 <= 65534) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=8, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L94] var_1_21 = __VERIFIER_nondet_float() [L95] CALL assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=8, var_1_1=16, var_1_20=65/2, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=8, var_1_1=16, var_1_20=65/2, var_1_22=128, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L108] RET updateVariables() [L109] CALL step() [L40] var_1_18 = var_1_19 [L41] var_1_20 = var_1_21 [L42] var_1_22 = var_1_12 [L43] COND FALSE !(127.5f > var_1_20) [L46] var_1_13 = ((var_1_20 >= var_1_20) || var_1_15) [L48] COND FALSE !(var_1_18 == var_1_7) [L51] EXPR (32 * -25) | var_1_22 [L51] COND FALSE !(((32 * -25) | var_1_22) >= var_1_11) [L57] COND TRUE \read(var_1_13) [L58] COND TRUE var_1_10 > var_1_22 [L59] COND TRUE \read(var_1_13) [L60] var_1_1 = (var_1_7 - (var_1_8 - var_1_9)) [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR (var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1)) [L100] EXPR (var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1) [L100] EXPR (32 * -25) | var_1_22 [L100] EXPR (var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1) [L100] EXPR (var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1)) [L100-L101] return (((((var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1))) && ((127.5f > var_1_20) ? (var_1_13 == ((unsigned char) (var_1_15 && var_1_16))) : (var_1_13 == ((unsigned char) ((var_1_20 >= var_1_20) || var_1_15))))) && (var_1_18 == ((unsigned short int) var_1_19))) && (var_1_20 == ((float) var_1_21))) && (var_1_22 == ((signed short int) var_1_12)) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=8, var_1_19=8, var_1_1=8, var_1_20=32771, var_1_21=32771, var_1_22=0, var_1_7=16391, var_1_8=32766, var_1_9=16383] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=100, var_1_11=-63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=8, var_1_19=8, var_1_1=8, var_1_20=32771, var_1_21=32771, var_1_22=0, var_1_7=16391, var_1_8=32766, var_1_9=16383] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 17, 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=35occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 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 [2023-11-23 20:33:25,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire --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 f4c12887b518c30807abd8d1f5e8bfcee830c9bbeabadce2ed262c9ce9e837ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:28,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:28,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:33:28,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:28,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:28,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:28,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:28,338 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:28,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:28,344 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:28,345 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:28,345 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:28,346 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:28,348 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:28,348 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:28,349 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:28,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:28,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:28,351 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:28,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:28,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:28,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:28,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:28,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:28,355 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:33:28,355 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:33:28,356 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:33:28,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:28,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:28,357 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:28,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:28,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:33:28,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:28,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:28,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:28,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:28,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:28,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:28,361 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:33:28,362 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:28,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:28,363 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:28,363 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:28,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:28,364 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_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4c12887b518c30807abd8d1f5e8bfcee830c9bbeabadce2ed262c9ce9e837ab [2023-11-23 20:33:28,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:28,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:28,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:28,896 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:28,897 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:28,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i [2023-11-23 20:33:32,091 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:32,404 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:32,405 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i [2023-11-23 20:33:32,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/data/417d73db9/b66c6134f5654ad08080854fdd6040b7/FLAG95e1b281c [2023-11-23 20:33:32,436 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/data/417d73db9/b66c6134f5654ad08080854fdd6040b7 [2023-11-23 20:33:32,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:32,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:32,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:32,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:32,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:32,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:32,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a2be2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32, skipping insertion in model container [2023-11-23 20:33:32,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:32,500 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:32,704 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_eb93b792-70b5-400d-8544-dadadc5dfc22/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i[917,930] [2023-11-23 20:33:32,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:32,803 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:32,822 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_eb93b792-70b5-400d-8544-dadadc5dfc22/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-97.i[917,930] [2023-11-23 20:33:32,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:32,893 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:32,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32 WrapperNode [2023-11-23 20:33:32,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:32,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:32,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:32,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:32,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:32,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:32,972 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2023-11-23 20:33:32,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:32,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:32,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:32,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:32,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:32,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:32,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:32,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:33,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:33,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:33,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:33,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:33,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:33,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:33,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:33,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:33,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (1/1) ... [2023-11-23 20:33:33,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:33,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:33,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:33,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:33,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:33:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:33,194 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:33,199 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:33,588 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:33,657 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:33,657 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:33,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:33 BoogieIcfgContainer [2023-11-23 20:33:33,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:33,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:33,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:33,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:33,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:32" (1/3) ... [2023-11-23 20:33:33,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4406d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:33, skipping insertion in model container [2023-11-23 20:33:33,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:32" (2/3) ... [2023-11-23 20:33:33,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4406d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:33, skipping insertion in model container [2023-11-23 20:33:33,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:33" (3/3) ... [2023-11-23 20:33:33,668 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-97.i [2023-11-23 20:33:33,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:33,690 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:33,754 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:33,762 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;@18618fe4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:33,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:33,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 20:33:33,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-23 20:33:33,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:33,813 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 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] [2023-11-23 20:33:33,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:33,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:33,822 INFO L85 PathProgramCache]: Analyzing trace with hash -320415703, now seen corresponding path program 1 times [2023-11-23 20:33:33,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:33,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127595148] [2023-11-23 20:33:33,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:33,842 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 [2023-11-23 20:33:33,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:33,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:33,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:34,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:33:34,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2023-11-23 20:33:34,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:34,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:34,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127595148] [2023-11-23 20:33:34,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127595148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:34,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:34,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:33:34,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802417285] [2023-11-23 20:33:34,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:34,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:33:34,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:34,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:33:34,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:33:34,282 INFO L87 Difference]: Start difference. First operand has 46 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 20:33:34,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:34,350 INFO L93 Difference]: Finished difference Result 89 states and 159 transitions. [2023-11-23 20:33:34,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:33:34,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 102 [2023-11-23 20:33:34,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:34,363 INFO L225 Difference]: With dead ends: 89 [2023-11-23 20:33:34,363 INFO L226 Difference]: Without dead ends: 44 [2023-11-23 20:33:34,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:33:34,373 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:34,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:33:34,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-23 20:33:34,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-23 20:33:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 20:33:34,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 67 transitions. [2023-11-23 20:33:34,439 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 67 transitions. Word has length 102 [2023-11-23 20:33:34,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:34,440 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 67 transitions. [2023-11-23 20:33:34,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 20:33:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2023-11-23 20:33:34,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-23 20:33:34,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:34,444 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 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] [2023-11-23 20:33:34,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:34,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:34,649 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:34,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:34,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2071386727, now seen corresponding path program 1 times [2023-11-23 20:33:34,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:34,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864392211] [2023-11-23 20:33:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:34,652 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 [2023-11-23 20:33:34,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:34,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:34,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:34,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:33:34,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:35,370 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 302 proven. 27 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-11-23 20:33:35,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 63 proven. 30 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-23 20:33:35,739 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864392211] [2023-11-23 20:33:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864392211] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:35,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2063784450] [2023-11-23 20:33:35,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:35,746 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:35,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:33:35,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:33:35,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:33:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:36,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 20:33:36,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:36,587 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 294 proven. 36 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-23 20:33:36,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:36,879 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 63 proven. 30 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-23 20:33:36,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2063784450] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:36,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824062572] [2023-11-23 20:33:36,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:36,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:36,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:36,888 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:36,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 20:33:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:37,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 20:33:37,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 306 proven. 36 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-23 20:33:37,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:37,770 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 96 proven. 39 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-23 20:33:37,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824062572] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:37,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:33:37,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 12, 9, 15, 12] total 24 [2023-11-23 20:33:37,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070255689] [2023-11-23 20:33:37,774 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:33:37,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-23 20:33:37,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:37,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-23 20:33:37,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2023-11-23 20:33:37,786 INFO L87 Difference]: Start difference. First operand 44 states and 67 transitions. Second operand has 24 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 7 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2023-11-23 20:33:38,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:38,865 INFO L93 Difference]: Finished difference Result 126 states and 180 transitions. [2023-11-23 20:33:38,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-23 20:33:38,866 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 7 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) Word has length 102 [2023-11-23 20:33:38,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:38,869 INFO L225 Difference]: With dead ends: 126 [2023-11-23 20:33:38,869 INFO L226 Difference]: Without dead ends: 83 [2023-11-23 20:33:38,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 585 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=565, Invalid=1327, Unknown=0, NotChecked=0, Total=1892 [2023-11-23 20:33:38,874 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 142 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:38,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 160 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 20:33:38,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-23 20:33:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2023-11-23 20:33:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 27 states have call successors, (27), 5 states have call predecessors, (27), 5 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 20:33:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 101 transitions. [2023-11-23 20:33:38,918 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 101 transitions. Word has length 102 [2023-11-23 20:33:38,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:38,922 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 101 transitions. [2023-11-23 20:33:38,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 7 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2023-11-23 20:33:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2023-11-23 20:33:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 20:33:38,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:38,937 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 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] [2023-11-23 20:33:38,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:39,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:39,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:39,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:39,559 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:39,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:39,560 INFO L85 PathProgramCache]: Analyzing trace with hash -226535538, now seen corresponding path program 1 times [2023-11-23 20:33:39,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:39,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519354905] [2023-11-23 20:33:39,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:39,561 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 [2023-11-23 20:33:39,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:39,562 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:39,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb93b792-70b5-400d-8544-dadadc5dfc22/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 20:33:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:39,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 20:33:39,708 INFO L285 TraceCheckSpWp]: Computing forward predicates...