./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70056f6ecf6cc1e792a4daa4b0ef5828c715d2ed64331075caaff01f6900b2e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:16:07,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:16:07,150 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:16:07,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:16:07,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:16:07,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:16:07,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:16:07,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:16:07,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:16:07,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:16:07,210 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:16:07,211 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:16:07,211 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:16:07,213 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:16:07,214 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:16:07,214 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:16:07,214 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:16:07,215 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:16:07,215 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:16:07,216 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:16:07,216 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:16:07,217 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:16:07,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:16:07,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:16:07,219 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:16:07,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:16:07,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:16:07,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:16:07,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:16:07,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:16:07,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:16:07,223 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:16:07,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:16:07,223 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:16:07,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:16:07,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:16:07,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:16:07,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:16:07,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:16:07,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:16:07,225 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:16:07,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:16:07,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:16:07,226 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:16:07,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:16:07,227 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_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70056f6ecf6cc1e792a4daa4b0ef5828c715d2ed64331075caaff01f6900b2e4 [2023-11-19 04:16:07,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:16:07,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:16:07,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:16:07,600 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:16:07,600 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:16:07,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i [2023-11-19 04:16:10,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:16:11,180 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:16:11,181 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i [2023-11-19 04:16:11,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/data/ccb526add/6ff07cf5b99d436ba7b86398ff0e9676/FLAGd5d60ae0c [2023-11-19 04:16:11,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/data/ccb526add/6ff07cf5b99d436ba7b86398ff0e9676 [2023-11-19 04:16:11,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:16:11,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:16:11,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:16:11,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:16:11,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:16:11,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5743fda3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11, skipping insertion in model container [2023-11-19 04:16:11,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,250 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:16:11,436 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_82c05515-e81e-498d-b3be-e412e7b3e65f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i[916,929] [2023-11-19 04:16:11,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:16:11,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:16:11,507 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_82c05515-e81e-498d-b3be-e412e7b3e65f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i[916,929] [2023-11-19 04:16:11,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:16:11,564 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:16:11,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11 WrapperNode [2023-11-19 04:16:11,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:16:11,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:16:11,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:16:11,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:16:11,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,623 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-19 04:16:11,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:16:11,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:16:11,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:16:11,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:16:11,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:16:11,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:16:11,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:16:11,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:16:11,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (1/1) ... [2023-11-19 04:16:11,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:16:11,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:16:11,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:16:11,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:16:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:16:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:16:11,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:16:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:16:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:16:11,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:16:11,882 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:16:11,884 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:16:12,214 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:16:12,330 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:16:12,332 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:16:12,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:12 BoogieIcfgContainer [2023-11-19 04:16:12,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:16:12,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:16:12,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:16:12,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:16:12,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:16:11" (1/3) ... [2023-11-19 04:16:12,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2961852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:16:12, skipping insertion in model container [2023-11-19 04:16:12,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:11" (2/3) ... [2023-11-19 04:16:12,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2961852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:16:12, skipping insertion in model container [2023-11-19 04:16:12,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:12" (3/3) ... [2023-11-19 04:16:12,363 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-13.i [2023-11-19 04:16:12,381 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:16:12,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:16:12,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:16:12,440 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;@64408a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:16:12,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:16:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 04:16:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 04:16:12,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:12,457 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:16:12,457 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:16:12,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:12,463 INFO L85 PathProgramCache]: Analyzing trace with hash -775995653, now seen corresponding path program 1 times [2023-11-19 04:16:12,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:16:12,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129600233] [2023-11-19 04:16:12,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:12,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:16:12,700 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:16:12,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526915496] [2023-11-19 04:16:12,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:12,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:16:12,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:16:12,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:16:12,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:16:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:16:13,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:16:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:16:13,285 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:16:13,288 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:16:13,289 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:16:13,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:16:13,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:16:13,503 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:16:13,507 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:16:13,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:16:13 BoogieIcfgContainer [2023-11-19 04:16:13,576 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:16:13,577 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:16:13,577 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:16:13,577 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:16:13,578 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:12" (3/4) ... [2023-11-19 04:16:13,580 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:16:13,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:16:13,583 INFO L158 Benchmark]: Toolchain (without parser) took 2373.40ms. Allocated memory is still 155.2MB. Free memory was 116.7MB in the beginning and 108.4MB in the end (delta: 8.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-19 04:16:13,584 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 123.7MB. Free memory was 90.1MB in the beginning and 90.1MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:16:13,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.75ms. Allocated memory is still 155.2MB. Free memory was 116.6MB in the beginning and 104.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:16:13,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.72ms. Allocated memory is still 155.2MB. Free memory was 104.2MB in the beginning and 101.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:16:13,586 INFO L158 Benchmark]: Boogie Preprocessor took 34.05ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 100.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:16:13,587 INFO L158 Benchmark]: RCFGBuilder took 695.16ms. Allocated memory is still 155.2MB. Free memory was 100.0MB in the beginning and 76.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 04:16:13,587 INFO L158 Benchmark]: TraceAbstraction took 1219.62ms. Allocated memory is still 155.2MB. Free memory was 75.4MB in the beginning and 108.4MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:16:13,588 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 155.2MB. Free memory is still 108.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:16:13,591 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 123.7MB. Free memory was 90.1MB in the beginning and 90.1MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.75ms. Allocated memory is still 155.2MB. Free memory was 116.6MB in the beginning and 104.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.72ms. Allocated memory is still 155.2MB. Free memory was 104.2MB in the beginning and 101.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.05ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 100.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 695.16ms. Allocated memory is still 155.2MB. Free memory was 100.0MB in the beginning and 76.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1219.62ms. Allocated memory is still 155.2MB. Free memory was 75.4MB in the beginning and 108.4MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 155.2MB. Free memory is still 108.4MB. 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 someBinaryDOUBLEComparisonOperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 25; [L23] unsigned char var_1_2 = 1; [L24] signed char var_1_5 = 16; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 4; [L27] unsigned short int var_1_8 = 2; [L28] signed char var_1_9 = 64; [L29] signed char var_1_10 = 0; [L30] unsigned char var_1_11 = 16; [L31] signed long int var_1_12 = 128; [L32] signed long int var_1_13 = 50; [L33] signed long int var_1_14 = 3; [L34] signed long int var_1_15 = 25; [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] FCALL updateLastVariables() [L100] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L62] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=4, var_1_8=2, var_1_9=64] [L65] CALL assume_abort_if_not(var_1_6 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_6 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=4, var_1_8=2, var_1_9=64] [L66] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=4, var_1_8=2, var_1_9=64] [L67] var_1_7 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=64] [L69] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=64] [L70] var_1_9 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_9 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_9 >= 63) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L72] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L73] var_1_10 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L75] CALL assume_abort_if_not(var_1_10 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_10 <= 64) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=128, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L76] var_1_12 = __VERIFIER_nondet_long() [L77] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L78] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=50, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L79] var_1_13 = __VERIFIER_nondet_long() [L80] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L81] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=3, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L82] var_1_14 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_14 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 >= -2147483648) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L84] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=25, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L85] var_1_15 = __VERIFIER_nondet_long() [L86] CALL assume_abort_if_not(var_1_15 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=-2147483648, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_15 >= -2147483648) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=-2147483648, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L87] CALL assume_abort_if_not(var_1_15 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=-2147483648, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_15 <= 2147483647) VAL [isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=-2147483648, var_1_1=25, var_1_2=1, var_1_5=16, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L100] RET updateVariables() [L101] CALL step() [L38] COND FALSE !(((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) [L41] COND TRUE \read(var_1_2) [L42] var_1_1 = ((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) [L44] COND TRUE (var_1_1 == 16) || (var_1_11 < (10 / var_1_6)) [L45] var_1_5 = var_1_7 [L49] unsigned char stepLocal_1 = var_1_11; [L50] unsigned char stepLocal_0 = var_1_2; [L51] COND TRUE stepLocal_0 || (var_1_11 >= var_1_11) [L52] COND FALSE !(stepLocal_1 < ((var_1_9 - var_1_10) - 16)) [L101] RET step() [L102] CALL, EXPR property() [L92-L93] return (((var_1_2 ? (var_1_1 == ((unsigned short int) ((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))))) : 1) && (((var_1_1 == 16) || (var_1_11 < (10 / var_1_6))) ? (var_1_5 == ((signed char) var_1_7)) : (var_1_5 == ((signed char) 5)))) && ((var_1_2 || (var_1_11 >= var_1_11)) ? ((var_1_11 < ((var_1_9 - var_1_10) - 16)) ? (var_1_8 == ((unsigned short int) ((((var_1_10) > (32)) ? (var_1_10) : (32))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_9) < (var_1_11)) ? (var_1_9) : (var_1_11))))))) && ((((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) ? (var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=-2147483648, var_1_1=16, var_1_2=1, var_1_5=-127, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=64, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=-2147483648, var_1_15=-2147483648, var_1_1=16, var_1_2=1, var_1_5=-127, var_1_6=1, var_1_7=-127, var_1_8=2, var_1_9=63] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 19, 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=37occurred 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:16:13,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70056f6ecf6cc1e792a4daa4b0ef5828c715d2ed64331075caaff01f6900b2e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:16:16,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:16:16,412 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:16:16,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:16:16,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:16:16,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:16:16,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:16:16,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:16:16,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:16:16,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:16:16,478 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:16:16,479 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:16:16,479 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:16:16,481 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:16:16,481 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:16:16,482 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:16:16,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:16:16,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:16:16,484 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:16:16,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:16:16,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:16:16,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:16:16,487 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:16:16,487 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:16:16,487 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:16:16,488 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:16:16,488 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:16:16,489 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:16:16,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:16:16,490 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:16:16,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:16:16,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:16:16,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:16:16,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:16:16,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:16:16,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:16:16,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:16:16,493 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:16:16,494 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:16:16,495 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:16:16,495 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:16:16,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:16:16,495 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_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70056f6ecf6cc1e792a4daa4b0ef5828c715d2ed64331075caaff01f6900b2e4 [2023-11-19 04:16:16,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:16:16,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:16:16,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:16:16,957 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:16:16,957 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:16:16,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i [2023-11-19 04:16:20,392 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:16:20,637 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:16:20,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i [2023-11-19 04:16:20,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/data/2600892e1/d0aa228b332c4d6b814ed7af53b6cf25/FLAGe0998f416 [2023-11-19 04:16:20,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/data/2600892e1/d0aa228b332c4d6b814ed7af53b6cf25 [2023-11-19 04:16:20,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:16:20,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:16:20,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:16:20,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:16:20,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:16:20,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:16:20" (1/1) ... [2023-11-19 04:16:20,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac97444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:20, skipping insertion in model container [2023-11-19 04:16:20,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:16:20" (1/1) ... [2023-11-19 04:16:20,731 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:16:20,930 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_82c05515-e81e-498d-b3be-e412e7b3e65f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i[916,929] [2023-11-19 04:16:21,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:16:21,032 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:16:21,054 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_82c05515-e81e-498d-b3be-e412e7b3e65f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-13.i[916,929] [2023-11-19 04:16:21,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:16:21,117 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:16:21,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21 WrapperNode [2023-11-19 04:16:21,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:16:21,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:16:21,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:16:21,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:16:21,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,194 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2023-11-19 04:16:21,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:16:21,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:16:21,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:16:21,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:16:21,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:16:21,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:16:21,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:16:21,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:16:21,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (1/1) ... [2023-11-19 04:16:21,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:16:21,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:16:21,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:16:21,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:16:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:16:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:16:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:16:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:16:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:16:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:16:21,481 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:16:21,484 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:16:27,927 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:16:27,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:16:27,937 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:16:27,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:27 BoogieIcfgContainer [2023-11-19 04:16:27,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:16:27,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:16:27,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:16:27,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:16:27,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:16:20" (1/3) ... [2023-11-19 04:16:27,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3ba060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:16:27, skipping insertion in model container [2023-11-19 04:16:27,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:21" (2/3) ... [2023-11-19 04:16:27,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3ba060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:16:27, skipping insertion in model container [2023-11-19 04:16:27,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:27" (3/3) ... [2023-11-19 04:16:27,952 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-13.i [2023-11-19 04:16:27,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:16:27,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:16:28,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:16:28,039 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;@39183c79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:16:28,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:16:28,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 04:16:28,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-19 04:16:28,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:28,067 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:16:28,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:16:28,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:28,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1848977806, now seen corresponding path program 1 times [2023-11-19 04:16:28,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:16:28,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722963590] [2023-11-19 04:16:28,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:28,092 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:16:28,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:16:28,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:16:28,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:16:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:16:28,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:16:28,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:16:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-11-19 04:16:28,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:16:28,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:16:28,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722963590] [2023-11-19 04:16:28,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722963590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:16:28,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:16:28,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:16:28,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903638333] [2023-11-19 04:16:28,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:16:28,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:16:28,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:16:28,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:16:28,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:16:28,714 INFO L87 Difference]: Start difference. First operand has 53 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:16:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:16:28,762 INFO L93 Difference]: Finished difference Result 99 states and 171 transitions. [2023-11-19 04:16:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:16:28,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 118 [2023-11-19 04:16:28,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:16:28,774 INFO L225 Difference]: With dead ends: 99 [2023-11-19 04:16:28,774 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 04:16:28,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:16:28,784 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:16:28,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:16:28,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 04:16:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 04:16:28,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 04:16:28,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2023-11-19 04:16:28,850 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 118 [2023-11-19 04:16:28,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:16:28,851 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2023-11-19 04:16:28,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:16:28,851 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2023-11-19 04:16:28,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-19 04:16:28,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:28,858 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:16:28,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:16:29,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:16:29,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:16:29,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash -609254647, now seen corresponding path program 1 times [2023-11-19 04:16:29,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:16:29,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891140659] [2023-11-19 04:16:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:29,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:16:29,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:16:29,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:16:29,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c05515-e81e-498d-b3be-e412e7b3e65f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:16:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:16:29,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:16:29,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:16:51,277 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 15.0 8.0))) (.cse4 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_15~0))) (let ((.cse3 (fp.gt .cse2 .cse4)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode (bvadd c_~var_1_12~0 c_~var_1_14~0 (bvneg c_~var_1_13~0)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 2053.0 8.0)))) (and (= (_ bv16 8) c_~var_1_11~0) (or (not (fp.leq .cse0 (fp.mul c_currentRoundingMode .cse1 .cse2))) (not .cse3)) (or .cse3 (not (fp.leq .cse0 (fp.mul c_currentRoundingMode .cse1 .cse4))))))) is different from false [2023-11-19 04:16:53,299 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 15.0 8.0))) (.cse4 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_15~0))) (let ((.cse3 (fp.gt .cse2 .cse4)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode (bvadd c_~var_1_12~0 c_~var_1_14~0 (bvneg c_~var_1_13~0)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 2053.0 8.0)))) (and (= (_ bv16 8) c_~var_1_11~0) (or (not (fp.leq .cse0 (fp.mul c_currentRoundingMode .cse1 .cse2))) (not .cse3)) (or .cse3 (not (fp.leq .cse0 (fp.mul c_currentRoundingMode .cse1 .cse4))))))) is different from true