./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.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_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/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_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/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_74724ed7-f521-4026-a94c-8c1db55e0688/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 2ed7cb0d7dd44f90c8f2664b0f68587fb54e832248476997225ec2aff393c799 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:59,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:00,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:34:00,057 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:00,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:00,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:00,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:00,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:00,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:00,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:00,092 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:00,093 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:00,093 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:00,094 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:00,094 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:00,095 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:00,095 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:00,096 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:00,096 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:00,097 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:00,097 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:00,098 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:00,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:00,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:00,100 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:00,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:00,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:00,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:00,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:00,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:00,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:00,103 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:00,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:00,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:00,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:00,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:00,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:00,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:00,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:00,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:00,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:00,108 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:00,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:00,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:00,109 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:00,109 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:00,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:00,110 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_74724ed7-f521-4026-a94c-8c1db55e0688/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed7cb0d7dd44f90c8f2664b0f68587fb54e832248476997225ec2aff393c799 [2023-11-23 20:34:00,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:00,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:00,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:00,456 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:00,457 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:00,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i [2023-11-23 20:34:03,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:03,785 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:03,785 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i [2023-11-23 20:34:03,794 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/data/fc8f2241a/c1a9085b00ba4a00b00e3ebae133d2ec/FLAG7c9f0e458 [2023-11-23 20:34:03,810 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/data/fc8f2241a/c1a9085b00ba4a00b00e3ebae133d2ec [2023-11-23 20:34:03,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:03,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:03,815 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:03,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:03,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:03,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:03,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b847c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03, skipping insertion in model container [2023-11-23 20:34:03,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:03,858 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:04,049 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_74724ed7-f521-4026-a94c-8c1db55e0688/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i[917,930] [2023-11-23 20:34:04,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:04,113 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:04,128 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_74724ed7-f521-4026-a94c-8c1db55e0688/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i[917,930] [2023-11-23 20:34:04,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:04,205 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:04,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04 WrapperNode [2023-11-23 20:34:04,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:04,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:04,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:04,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:04,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,284 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-11-23 20:34:04,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:04,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:04,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:04,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:04,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:04,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:04,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:04,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:04,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:04,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:04,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:04,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:04,498 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:04,501 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:04,844 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:04,999 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:04,999 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:05,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:05 BoogieIcfgContainer [2023-11-23 20:34:05,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:05,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:05,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:05,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:05,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:03" (1/3) ... [2023-11-23 20:34:05,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc6bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:05, skipping insertion in model container [2023-11-23 20:34:05,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (2/3) ... [2023-11-23 20:34:05,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc6bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:05, skipping insertion in model container [2023-11-23 20:34:05,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:05" (3/3) ... [2023-11-23 20:34:05,011 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-24.i [2023-11-23 20:34:05,028 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:05,028 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:05,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:05,087 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;@3bdf8e4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:05,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:05,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 20:34:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:34:05,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:05,100 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:05,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:05,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:05,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1279887420, now seen corresponding path program 1 times [2023-11-23 20:34:05,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:05,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107394355] [2023-11-23 20:34:05,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:05,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:05,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:34:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:05,833 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:34:05,835 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:34:05,836 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:34:05,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:34:05,843 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:34:05,848 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:34:05,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:34:05 BoogieIcfgContainer [2023-11-23 20:34:05,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:34:05,945 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:34:05,945 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:34:05,946 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:34:05,946 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:05" (3/4) ... [2023-11-23 20:34:05,953 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:34:05,954 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:34:05,956 INFO L158 Benchmark]: Toolchain (without parser) took 2141.59ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 79.2MB in the end (delta: 15.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-23 20:34:05,957 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:05,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.18ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 81.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:34:05,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.34ms. Allocated memory is still 134.2MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:05,960 INFO L158 Benchmark]: Boogie Preprocessor took 31.34ms. Allocated memory is still 134.2MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:05,961 INFO L158 Benchmark]: RCFGBuilder took 665.72ms. Allocated memory is still 134.2MB. Free memory was 78.1MB in the beginning and 54.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:05,961 INFO L158 Benchmark]: TraceAbstraction took 938.76ms. Allocated memory is still 134.2MB. Free memory was 53.9MB in the beginning and 80.1MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:05,962 INFO L158 Benchmark]: Witness Printer took 9.65ms. Allocated memory is still 134.2MB. Free memory was 80.1MB in the beginning and 79.2MB in the end (delta: 840.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:05,965 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.18ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 81.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.34ms. Allocated memory is still 134.2MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.34ms. Allocated memory is still 134.2MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 665.72ms. Allocated memory is still 134.2MB. Free memory was 78.1MB in the beginning and 54.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 938.76ms. Allocated memory is still 134.2MB. Free memory was 53.9MB in the beginning and 80.1MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.65ms. Allocated memory is still 134.2MB. Free memory was 80.1MB in the beginning and 79.2MB in the end (delta: 840.4kB). 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 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] unsigned char var_1_2 = 0; [L24] signed char var_1_4 = 16; [L25] signed char var_1_5 = 4; [L26] signed char var_1_6 = 0; [L27] unsigned short int var_1_7 = 0; [L28] unsigned short int var_1_10 = 55182; [L29] unsigned char var_1_12 = 0; [L30] unsigned char var_1_14 = 1; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 100; [L33] float var_1_17 = 2.25; [L34] float var_1_18 = 199.4; [L35] signed char var_1_19 = -128; [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] FCALL updateLastVariables() [L96] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L64] var_1_4 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=0, var_1_7=0] [L66] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=0, var_1_7=0] [L67] var_1_5 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=0, var_1_7=0] [L69] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=0, var_1_7=0] [L70] var_1_6 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_6 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 >= -127) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L72] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L73] var_1_10 = __VERIFIER_nondet_ushort() [L74] CALL assume_abort_if_not(var_1_10 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_10 >= 32767) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L75] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L76] var_1_14 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L78] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L79] var_1_15 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L81] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_18=997/5, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L82] var_1_18 = __VERIFIER_nondet_float() [L83] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=9/4, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=0] [L96] RET updateVariables() [L97] CALL step() [L39] COND FALSE !(! var_1_2) [L42] var_1_12 = ((! var_1_15) || (! (! 0))) [L44] var_1_16 = var_1_5 [L45] var_1_17 = var_1_18 [L46] var_1_19 = var_1_4 [L47] COND TRUE var_1_12 || (64.75f < var_1_17) [L48] COND FALSE !(\read(var_1_12)) [L51] var_1_1 = ((((((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) < (var_1_6)) ? (((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) : (var_1_6))) [L56] COND TRUE (((((var_1_17 * 127.75)) > ((var_1_17 / 3.4))) ? ((var_1_17 * 127.75)) : ((var_1_17 / 3.4)))) >= var_1_17 [L57] var_1_7 = (((((var_1_10 - (22925 - var_1_5))) < (var_1_16)) ? ((var_1_10 - (22925 - var_1_5))) : (var_1_16))) [L97] RET step() [L98] CALL, EXPR property() [L88-L89] return ((((((var_1_12 || (64.75f < var_1_17)) ? (var_1_12 ? (var_1_1 == ((signed char) (var_1_4 - var_1_5))) : (var_1_1 == ((signed char) ((((((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) < (var_1_6)) ? (((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) : (var_1_6)))))) : (var_1_1 == ((signed char) var_1_4))) && (((((((var_1_17 * 127.75)) > ((var_1_17 / 3.4))) ? ((var_1_17 * 127.75)) : ((var_1_17 / 3.4)))) >= var_1_17) ? (var_1_7 == ((unsigned short int) (((((var_1_10 - (22925 - var_1_5))) < (var_1_16)) ? ((var_1_10 - (22925 - var_1_5))) : (var_1_16))))) : 1)) && ((! var_1_2) ? (var_1_12 == ((unsigned char) var_1_14)) : (var_1_12 == ((unsigned char) ((! var_1_15) || (! (! 0))))))) && (var_1_16 == ((unsigned char) var_1_5))) && (var_1_17 == ((float) var_1_18))) && (var_1_19 == ((signed char) var_1_4)) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=4, var_1_17=55187, var_1_18=55187, var_1_19=5, var_1_1=5, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=4, var_1_17=55187, var_1_18=55187, var_1_19=5, var_1_1=5, var_1_2=1, var_1_4=5, var_1_5=4, var_1_6=6, var_1_7=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 15, 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=32occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:34:06,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/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_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/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_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/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_74724ed7-f521-4026-a94c-8c1db55e0688/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 2ed7cb0d7dd44f90c8f2664b0f68587fb54e832248476997225ec2aff393c799 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:08,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:08,804 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:34:08,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:08,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:08,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:08,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:08,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:08,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:08,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:08,867 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:08,867 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:08,868 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:08,870 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:08,870 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:08,871 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:08,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:08,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:08,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:08,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:08,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:08,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:08,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:08,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:08,876 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:34:08,877 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:34:08,877 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:34:08,878 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:08,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:08,879 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:08,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:08,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:34:08,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:08,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:08,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:08,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:08,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:08,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:08,882 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:34:08,883 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:34:08,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:08,884 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:08,884 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:08,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:08,885 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_74724ed7-f521-4026-a94c-8c1db55e0688/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed7cb0d7dd44f90c8f2664b0f68587fb54e832248476997225ec2aff393c799 [2023-11-23 20:34:09,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:09,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:09,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:09,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:09,330 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:09,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i [2023-11-23 20:34:12,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:12,927 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:12,929 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i [2023-11-23 20:34:12,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/data/5d8c98191/83e95dd09ead4d1d8bc695e4e0d7ed76/FLAG125011168 [2023-11-23 20:34:12,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/data/5d8c98191/83e95dd09ead4d1d8bc695e4e0d7ed76 [2023-11-23 20:34:12,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:12,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:12,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:12,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:12,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:12,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:12" (1/1) ... [2023-11-23 20:34:12,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb56474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:12, skipping insertion in model container [2023-11-23 20:34:12,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:12" (1/1) ... [2023-11-23 20:34:13,013 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:13,154 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_74724ed7-f521-4026-a94c-8c1db55e0688/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i[917,930] [2023-11-23 20:34:13,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:13,209 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:13,241 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_74724ed7-f521-4026-a94c-8c1db55e0688/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-24.i[917,930] [2023-11-23 20:34:13,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:13,313 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:13,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13 WrapperNode [2023-11-23 20:34:13,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:13,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:13,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:13,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:13,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,392 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2023-11-23 20:34:13,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:13,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:13,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:13,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:13,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:13,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:13,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:13,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:13,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (1/1) ... [2023-11-23 20:34:13,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:13,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:13,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:13,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:34:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:13,644 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:13,646 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:20,268 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:20,314 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:20,315 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:20,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:20 BoogieIcfgContainer [2023-11-23 20:34:20,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:20,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:20,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:20,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:20,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:12" (1/3) ... [2023-11-23 20:34:20,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f685d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:20, skipping insertion in model container [2023-11-23 20:34:20,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:13" (2/3) ... [2023-11-23 20:34:20,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f685d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:20, skipping insertion in model container [2023-11-23 20:34:20,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:20" (3/3) ... [2023-11-23 20:34:20,325 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-24.i [2023-11-23 20:34:20,345 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:20,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:20,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:20,401 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;@256b3a3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:20,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:20,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 20:34:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 20:34:20,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:20,418 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:20,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:20,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash 965612790, now seen corresponding path program 1 times [2023-11-23 20:34:20,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:20,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710116821] [2023-11-23 20:34:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:20,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:34:20,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:20,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:34:20,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 20:34:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:21,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:34:21,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-23 20:34:21,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:21,706 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:34:21,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710116821] [2023-11-23 20:34:21,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710116821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:21,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:21,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:34:21,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635719816] [2023-11-23 20:34:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:21,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:34:21,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:34:21,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:34:21,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:34:21,750 INFO L87 Difference]: Start difference. First operand has 41 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:34:24,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:24,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:24,178 INFO L93 Difference]: Finished difference Result 79 states and 137 transitions. [2023-11-23 20:34:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:34:24,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 92 [2023-11-23 20:34:24,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:24,295 INFO L225 Difference]: With dead ends: 79 [2023-11-23 20:34:24,295 INFO L226 Difference]: Without dead ends: 39 [2023-11-23 20:34:24,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:34:24,303 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:24,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 20:34:24,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-23 20:34:24,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-23 20:34:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 20:34:24,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 57 transitions. [2023-11-23 20:34:24,355 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 57 transitions. Word has length 92 [2023-11-23 20:34:24,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:24,356 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 57 transitions. [2023-11-23 20:34:24,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:34:24,356 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2023-11-23 20:34:24,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 20:34:24,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:24,362 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:24,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/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)] Ended with exit code 0 [2023-11-23 20:34:24,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:34:24,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:24,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:24,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1609989192, now seen corresponding path program 1 times [2023-11-23 20:34:24,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:24,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371565456] [2023-11-23 20:34:24,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:24,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:34:24,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:24,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:34:24,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 20:34:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:25,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:34:25,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-23 20:34:27,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:34:28,673 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-23 20:34:28,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:34:28,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371565456] [2023-11-23 20:34:28,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371565456] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:34:28,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1376326385] [2023-11-23 20:34:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:28,677 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:34:28,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:34:28,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:34:28,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:34:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:30,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:34:30,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 194 proven. 12 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-23 20:34:31,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:34:31,885 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-23 20:34:31,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1376326385] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:34:31,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622268797] [2023-11-23 20:34:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:31,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:31,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:31,892 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:31,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 20:34:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:32,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:34:32,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:33,326 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 194 proven. 12 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-23 20:34:33,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:34:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-23 20:34:33,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622268797] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:34:33,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:34:33,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 12 [2023-11-23 20:34:33,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289179757] [2023-11-23 20:34:33,952 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:34:33,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 20:34:33,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:34:33,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 20:34:33,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-23 20:34:33,956 INFO L87 Difference]: Start difference. First operand 39 states and 57 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 20:34:38,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:40,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:42,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:44,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:46,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:48,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:49,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:53,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:53,902 INFO L93 Difference]: Finished difference Result 180 states and 244 transitions. [2023-11-23 20:34:53,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 20:34:53,904 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 92 [2023-11-23 20:34:53,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:53,908 INFO L225 Difference]: With dead ends: 180 [2023-11-23 20:34:53,908 INFO L226 Difference]: Without dead ends: 142 [2023-11-23 20:34:53,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 535 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=333, Invalid=857, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 20:34:53,912 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 143 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 111 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:53,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 213 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 325 Invalid, 6 Unknown, 0 Unchecked, 17.5s Time] [2023-11-23 20:34:53,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-23 20:34:53,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 50. [2023-11-23 20:34:53,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 20:34:53,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 66 transitions. [2023-11-23 20:34:53,940 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 66 transitions. Word has length 92 [2023-11-23 20:34:53,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:53,941 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 66 transitions. [2023-11-23 20:34:53,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 20:34:53,942 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2023-11-23 20:34:53,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 20:34:53,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:53,946 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:53,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:54,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:54,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-23 20:34:54,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/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=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 20:34:54,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:54,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:54,556 INFO L85 PathProgramCache]: Analyzing trace with hash 165018170, now seen corresponding path program 1 times [2023-11-23 20:34:54,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:54,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207657747] [2023-11-23 20:34:54,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:54,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:34:54,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:54,558 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:34:54,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74724ed7-f521-4026-a94c-8c1db55e0688/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 20:34:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:55,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-23 20:34:55,638 INFO L285 TraceCheckSpWp]: Computing forward predicates...