./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.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_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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_8e85b142-3171-4db4-a87c-67cedcc78386/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 7e20287594d7bda057cc8987462fe4bc20fb41928eadfc70690547ace3b60f57 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:31,444 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:31,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:27:31,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:31,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:31,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:31,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:31,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:31,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:31,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:31,627 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:31,628 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:31,628 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:31,630 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:31,631 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:31,631 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:31,632 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:31,632 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:31,632 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:31,633 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:31,633 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:31,634 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:31,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:31,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:31,636 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:31,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:31,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:31,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:31,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:31,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:31,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:31,641 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:31,641 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:31,641 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:31,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:31,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:31,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:31,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:31,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:31,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:31,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:31,655 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:31,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:31,655 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:31,655 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:31,655 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:31,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:31,656 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_8e85b142-3171-4db4-a87c-67cedcc78386/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e20287594d7bda057cc8987462fe4bc20fb41928eadfc70690547ace3b60f57 [2023-11-23 21:27:31,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:31,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:31,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:31,972 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:31,972 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:31,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i [2023-11-23 21:27:35,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:35,658 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:35,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i [2023-11-23 21:27:35,671 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/data/35b26b3da/b0d8ad3d22f14f8aac8e9dfb6cfa5a27/FLAG924e83167 [2023-11-23 21:27:35,696 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/data/35b26b3da/b0d8ad3d22f14f8aac8e9dfb6cfa5a27 [2023-11-23 21:27:35,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:35,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:35,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:35,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:35,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:35,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:35" (1/1) ... [2023-11-23 21:27:35,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7019f983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:35, skipping insertion in model container [2023-11-23 21:27:35,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:35" (1/1) ... [2023-11-23 21:27:35,768 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:35,932 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_8e85b142-3171-4db4-a87c-67cedcc78386/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i[917,930] [2023-11-23 21:27:35,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:35,995 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:36,010 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_8e85b142-3171-4db4-a87c-67cedcc78386/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i[917,930] [2023-11-23 21:27:36,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:36,057 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:36,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36 WrapperNode [2023-11-23 21:27:36,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:36,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:36,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:36,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:36,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,117 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-23 21:27:36,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:36,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:36,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:36,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:36,127 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:36,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:36,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:36,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:36,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (1/1) ... [2023-11-23 21:27:36,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:36,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:36,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:36,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:36,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:36,246 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:27:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:27:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:36,337 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:36,340 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:36,662 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:36,908 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:36,908 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:27:36,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:36 BoogieIcfgContainer [2023-11-23 21:27:36,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:36,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:36,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:36,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:36,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:35" (1/3) ... [2023-11-23 21:27:36,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3686cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:36, skipping insertion in model container [2023-11-23 21:27:36,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:36" (2/3) ... [2023-11-23 21:27:36,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3686cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:36, skipping insertion in model container [2023-11-23 21:27:36,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:36" (3/3) ... [2023-11-23 21:27:36,919 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-23.i [2023-11-23 21:27:36,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:36,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:27:36,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:36,999 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;@4007d816, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:37,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:27:37,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:27:37,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 21:27:37,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:37,018 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:27:37,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:37,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:37,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1852565063, now seen corresponding path program 1 times [2023-11-23 21:27:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:37,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450564113] [2023-11-23 21:27:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:37,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:37,213 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:27:37,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2096712979] [2023-11-23 21:27:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:37,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:27:37,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:37,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:27:37,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:27:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:37,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:27:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:37,557 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:27:37,560 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:27:37,562 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:27:37,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:37,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:27:37,789 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:27:37,793 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:27:37,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:27:37 BoogieIcfgContainer [2023-11-23 21:27:37,891 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:27:37,891 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:27:37,891 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:27:37,892 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:27:37,892 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:36" (3/4) ... [2023-11-23 21:27:37,894 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:27:37,895 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:27:37,896 INFO L158 Benchmark]: Toolchain (without parser) took 2190.79ms. Allocated memory is still 125.8MB. Free memory was 82.2MB in the beginning and 52.4MB in the end (delta: 29.8MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2023-11-23 21:27:37,896 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 96.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:37,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.49ms. Allocated memory is still 125.8MB. Free memory was 82.2MB in the beginning and 69.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:27:37,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.23ms. Allocated memory is still 125.8MB. Free memory was 69.6MB in the beginning and 67.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:37,898 INFO L158 Benchmark]: Boogie Preprocessor took 35.08ms. Allocated memory is still 125.8MB. Free memory was 67.5MB in the beginning and 65.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:37,899 INFO L158 Benchmark]: RCFGBuilder took 755.94ms. Allocated memory is still 125.8MB. Free memory was 65.9MB in the beginning and 88.1MB in the end (delta: -22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 21:27:37,899 INFO L158 Benchmark]: TraceAbstraction took 978.58ms. Allocated memory is still 125.8MB. Free memory was 87.1MB in the beginning and 52.9MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-23 21:27:37,900 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 125.8MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:37,903 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 96.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.49ms. Allocated memory is still 125.8MB. Free memory was 82.2MB in the beginning and 69.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.23ms. Allocated memory is still 125.8MB. Free memory was 69.6MB in the beginning and 67.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.08ms. Allocated memory is still 125.8MB. Free memory was 67.5MB in the beginning and 65.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 755.94ms. Allocated memory is still 125.8MB. Free memory was 65.9MB in the beginning and 88.1MB in the end (delta: -22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 978.58ms. Allocated memory is still 125.8MB. Free memory was 87.1MB in the beginning and 52.9MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 125.8MB. Free memory is still 52.4MB. 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. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 0; [L23] unsigned long int var_1_2 = 16; [L24] unsigned long int var_1_3 = 64; [L25] unsigned long int var_1_4 = 25; [L26] float var_1_5 = 1.2; [L27] float var_1_6 = 999.7; [L28] float var_1_7 = 1.4; [L29] float var_1_8 = 9.75; [L30] float var_1_9 = 1.75; [L31] unsigned long int var_1_10 = 16; [L32] unsigned long int var_1_11 = 1277342739; [L33] unsigned long int var_1_12 = 1394088949; [L34] unsigned long int var_1_13 = 0; [L35] unsigned char var_1_14 = 0; [L36] unsigned char var_1_17 = 0; [L37] unsigned char var_1_18 = 0; [L38] unsigned char var_1_19 = 0; [L102] isInitial = 1 [L103] FCALL initially() [L104] COND TRUE 1 [L105] FCALL updateLastVariables() [L106] CALL updateVariables() [L62] var_1_2 = __VERIFIER_nondet_ulong() [L63] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_3=64, var_1_4=25, var_1_5=6/5, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_3=64, var_1_4=25, var_1_5=6/5, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L64] CALL assume_abort_if_not(var_1_2 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=64, var_1_4=25, var_1_5=6/5, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_2 <= 4294967294) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=64, var_1_4=25, var_1_5=6/5, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L65] var_1_3 = __VERIFIER_nondet_ulong() [L66] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_4=25, var_1_5=6/5, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_4=25, var_1_5=6/5, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L67] CALL assume_abort_if_not(var_1_3 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_5=6/5, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 <= 4294967294) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_5=6/5, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L68] var_1_5 = __VERIFIER_nondet_float() [L69] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_6=9997/10, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L70] var_1_6 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L72] CALL assume_abort_if_not(var_1_6 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_6 != 0.0F) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_7=7/5, var_1_8=39/4, var_1_9=7/4] [L73] var_1_7 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_8=39/4, var_1_9=7/4] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_8=39/4, var_1_9=7/4] [L75] var_1_8 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_9=7/4] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25, var_1_9=7/4] [L77] var_1_9 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=16, var_1_11=1277342739, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L79] var_1_11 = __VERIFIER_nondet_ulong() [L80] CALL assume_abort_if_not(var_1_11 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_11 >= 1073741823) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L81] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1394088949, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L82] var_1_12 = __VERIFIER_nondet_ulong() [L83] CALL assume_abort_if_not(var_1_12 >= 1073741824) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_12 >= 1073741824) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L84] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L85] var_1_13 = __VERIFIER_nondet_ulong() [L86] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L87] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L88] var_1_17 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L90] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L91] var_1_19 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L93] CALL assume_abort_if_not(var_1_19 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_19 <= 0) VAL [isInitial=1, var_1_10=16, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L106] RET updateVariables() [L107] CALL step() [L42] var_1_1 = ((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))) [L43] COND FALSE !((var_1_5 / var_1_6) <= (var_1_7 + (var_1_8 - var_1_9))) [L46] var_1_10 = ((((var_1_2) > (((var_1_11 + var_1_12) - var_1_13))) ? (var_1_2) : (((var_1_11 + var_1_12) - var_1_13)))) [L47] unsigned char stepLocal_0 = (- var_1_5) != 1.9f; [L48] COND FALSE !(stepLocal_0 || ((var_1_4 * var_1_13) < var_1_3)) [L51] var_1_18 = var_1_19 [L53] COND FALSE !(\read(var_1_18)) [L107] RET step() [L108] CALL, EXPR property() [L98-L99] return ((((var_1_1 == ((unsigned long int) ((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))))) && (((var_1_5 / var_1_6) <= (var_1_7 + (var_1_8 - var_1_9))) ? (var_1_4 == ((unsigned long int) ((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))))) : 1)) && (var_1_10 == ((unsigned long int) ((((var_1_2) > (((var_1_11 + var_1_12) - var_1_13))) ? (var_1_2) : (((var_1_11 + var_1_12) - var_1_13))))))) && (var_1_18 ? ((! ((var_1_5 / var_1_6) < (var_1_8 - var_1_9))) ? (var_1_18 ? (var_1_14 == ((unsigned char) (! var_1_17))) : 1) : 1) : 1)) && ((((- var_1_5) != 1.9f) || ((var_1_4 * var_1_13) < var_1_3)) ? (var_1_18 == ((unsigned char) (! var_1_19))) : (var_1_18 == ((unsigned char) var_1_19))) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2147483647, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2147483647, var_1_11=1073741823, var_1_12=1073741824, var_1_13=0, var_1_14=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=25] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 20, 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=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 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 21:27:37,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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_8e85b142-3171-4db4-a87c-67cedcc78386/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 7e20287594d7bda057cc8987462fe4bc20fb41928eadfc70690547ace3b60f57 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:40,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:40,831 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:27:40,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:40,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:40,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:40,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:40,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:40,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:40,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:40,885 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:40,886 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:40,886 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:40,887 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:40,887 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:40,888 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:40,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:40,889 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:40,890 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:40,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:40,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:40,892 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:40,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:40,893 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:40,894 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:27:40,894 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:27:40,895 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:27:40,895 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:40,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:40,896 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:40,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:40,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:27:40,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:40,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:40,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:40,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:40,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:40,900 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:40,901 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:27:40,901 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:40,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:40,902 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:40,903 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:40,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:40,904 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_8e85b142-3171-4db4-a87c-67cedcc78386/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e20287594d7bda057cc8987462fe4bc20fb41928eadfc70690547ace3b60f57 [2023-11-23 21:27:41,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:41,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:41,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:41,354 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:41,354 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:41,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i [2023-11-23 21:27:44,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:44,954 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:44,956 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i [2023-11-23 21:27:44,975 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/data/7089d3225/93f77f118ccb4e8a88e31e5b244bf469/FLAGd9c126ce3 [2023-11-23 21:27:44,995 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/data/7089d3225/93f77f118ccb4e8a88e31e5b244bf469 [2023-11-23 21:27:45,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:45,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:45,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:45,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:45,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:45,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:45,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d12918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45, skipping insertion in model container [2023-11-23 21:27:45,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:45,059 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:45,248 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_8e85b142-3171-4db4-a87c-67cedcc78386/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i[917,930] [2023-11-23 21:27:45,319 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:45,335 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:45,346 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_8e85b142-3171-4db4-a87c-67cedcc78386/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-23.i[917,930] [2023-11-23 21:27:45,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:45,389 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:45,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45 WrapperNode [2023-11-23 21:27:45,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:45,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:45,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:45,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:45,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,443 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-23 21:27:45,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:45,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:45,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:45,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:45,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:45,496 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:45,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:45,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:45,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (1/1) ... [2023-11-23 21:27:45,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:45,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:45,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:45,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:45,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:45,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:27:45,560 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:27:45,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:27:45,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:45,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:45,654 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:45,657 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:55,817 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:55,894 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:55,895 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:27:55,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:55 BoogieIcfgContainer [2023-11-23 21:27:55,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:55,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:55,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:55,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:55,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:44" (1/3) ... [2023-11-23 21:27:55,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44331a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:55, skipping insertion in model container [2023-11-23 21:27:55,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:45" (2/3) ... [2023-11-23 21:27:55,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44331a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:55, skipping insertion in model container [2023-11-23 21:27:55,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:55" (3/3) ... [2023-11-23 21:27:55,905 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-23.i [2023-11-23 21:27:55,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:55,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:27:55,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:55,978 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;@2e5cfa02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:55,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:27:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:27:56,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 21:27:56,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:56,002 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:27:56,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:56,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:56,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1545169154, now seen corresponding path program 1 times [2023-11-23 21:27:56,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:56,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686226956] [2023-11-23 21:27:56,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:56,030 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 21:27:56,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:56,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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 21:27:56,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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 21:27:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:56,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:27:56,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2023-11-23 21:27:56,640 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:56,641 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:56,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686226956] [2023-11-23 21:27:56,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686226956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:56,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:56,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:27:56,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125820612] [2023-11-23 21:27:56,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:56,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:27:56,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:56,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:27:56,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:27:56,697 INFO L87 Difference]: Start difference. First operand has 51 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:27:58,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:27:58,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:58,839 INFO L93 Difference]: Finished difference Result 99 states and 174 transitions. [2023-11-23 21:27:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:27:58,865 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 121 [2023-11-23 21:27:58,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:58,873 INFO L225 Difference]: With dead ends: 99 [2023-11-23 21:27:58,873 INFO L226 Difference]: Without dead ends: 49 [2023-11-23 21:27:58,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 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 21:27:58,879 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:58,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 21:27:58,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-23 21:27:58,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-23 21:27:58,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:27:58,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions. [2023-11-23 21:27:58,919 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 121 [2023-11-23 21:27:58,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:58,920 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 73 transitions. [2023-11-23 21:27:58,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:27:58,920 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-11-23 21:27:58,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 21:27:58,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:58,925 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:27:58,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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 21:27:59,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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 21:27:59,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:59,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:59,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1301748550, now seen corresponding path program 1 times [2023-11-23 21:27:59,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:59,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849154092] [2023-11-23 21:27:59,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:59,138 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 21:27:59,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:59,140 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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 21:27:59,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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 21:27:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:59,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:27:59,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 21:27:59,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:59,856 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:59,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849154092] [2023-11-23 21:27:59,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849154092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:59,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:59,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:27:59,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119701962] [2023-11-23 21:27:59,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:59,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:27:59,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:59,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:27:59,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:27:59,861 INFO L87 Difference]: Start difference. First operand 49 states and 73 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:28:02,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:05,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:06,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:06,837 INFO L93 Difference]: Finished difference Result 161 states and 231 transitions. [2023-11-23 21:28:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 21:28:06,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 121 [2023-11-23 21:28:06,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:06,844 INFO L225 Difference]: With dead ends: 161 [2023-11-23 21:28:06,844 INFO L226 Difference]: Without dead ends: 113 [2023-11-23 21:28:06,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:28:06,847 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 97 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:06,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 212 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 272 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2023-11-23 21:28:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-23 21:28:06,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 56. [2023-11-23 21:28:06,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:28:06,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 80 transitions. [2023-11-23 21:28:06,872 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 80 transitions. Word has length 121 [2023-11-23 21:28:06,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:06,874 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 80 transitions. [2023-11-23 21:28:06,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:28:06,874 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 80 transitions. [2023-11-23 21:28:06,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 21:28:06,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:06,877 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:06,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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 21:28:07,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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 21:28:07,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:07,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:07,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1299901508, now seen corresponding path program 1 times [2023-11-23 21:28:07,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:28:07,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686993274] [2023-11-23 21:28:07,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:07,091 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 21:28:07,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:28:07,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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 21:28:07,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85b142-3171-4db4-a87c-67cedcc78386/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)] Waiting until timeout for monitored process [2023-11-23 21:28:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:07,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:28:07,573 INFO L285 TraceCheckSpWp]: Computing forward predicates...