./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh --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 e232e31d2ef49a20919d421300baab40e8d32863fd290aed1658ebcf167ecf0c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:05:09,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:05:09,491 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:05:09,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:05:09,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:05:09,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:05:09,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:05:09,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:05:09,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:05:09,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:05:09,525 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:05:09,526 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:05:09,526 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:05:09,527 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:05:09,527 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:05:09,528 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:05:09,528 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:05:09,529 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:05:09,529 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:05:09,530 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:05:09,530 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:05:09,531 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:05:09,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:05:09,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:05:09,533 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:05:09,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:05:09,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:05:09,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:05:09,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:05:09,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:05:09,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:05:09,536 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:05:09,536 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:05:09,537 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:05:09,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:05:09,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:05:09,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:05:09,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:05:09,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:05:09,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:05:09,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:05:09,539 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:05:09,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:05:09,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:05:09,539 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:05:09,539 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:05:09,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:05:09,540 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_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e232e31d2ef49a20919d421300baab40e8d32863fd290aed1658ebcf167ecf0c [2023-12-02 15:05:09,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:05:09,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:05:09,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:05:09,809 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:05:09,809 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:05:09,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i [2023-12-02 15:05:12,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:05:12,838 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:05:12,839 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i [2023-12-02 15:05:12,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/data/f3177652b/0ee3986aa03343a3ba4e822bed78b46f/FLAG29aa382ab [2023-12-02 15:05:12,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/data/f3177652b/0ee3986aa03343a3ba4e822bed78b46f [2023-12-02 15:05:12,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:05:12,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:05:12,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:05:12,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:05:12,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:05:12,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:05:12" (1/1) ... [2023-12-02 15:05:12,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a339b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:12, skipping insertion in model container [2023-12-02 15:05:12,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:05:12" (1/1) ... [2023-12-02 15:05:12,907 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:05:13,091 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_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i[917,930] [2023-12-02 15:05:13,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:05:13,152 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:05:13,166 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_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i[917,930] [2023-12-02 15:05:13,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:05:13,212 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:05:13,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13 WrapperNode [2023-12-02 15:05:13,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:05:13,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:05:13,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:05:13,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:05:13,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,262 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2023-12-02 15:05:13,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:05:13,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:05:13,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:05:13,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:05:13,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:05:13,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:05:13,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:05:13,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:05:13,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (1/1) ... [2023-12-02 15:05:13,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:05:13,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:05:13,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:05:13,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:05:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:05:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:05:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:05:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:05:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:05:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:05:13,458 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:05:13,460 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:05:13,694 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:05:13,806 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:05:13,807 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:05:13,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:13 BoogieIcfgContainer [2023-12-02 15:05:13,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:05:13,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:05:13,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:05:13,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:05:13,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:05:12" (1/3) ... [2023-12-02 15:05:13,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77db524e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:05:13, skipping insertion in model container [2023-12-02 15:05:13,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:13" (2/3) ... [2023-12-02 15:05:13,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77db524e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:05:13, skipping insertion in model container [2023-12-02 15:05:13,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:13" (3/3) ... [2023-12-02 15:05:13,818 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-63.i [2023-12-02 15:05:13,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:05:13,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:05:13,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:05:13,885 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;@6df30609, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:05:13,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:05:13,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 15:05:13,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 15:05:13,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:13,898 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:13,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:05:13,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:13,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1876400192, now seen corresponding path program 1 times [2023-12-02 15:05:13,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:05:13,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269242271] [2023-12-02 15:05:13,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:13,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:05:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:05:14,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:05:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:05:14,423 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:05:14,426 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:05:14,427 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:05:14,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:05:14,436 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:05:14,441 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:05:14,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:05:14 BoogieIcfgContainer [2023-12-02 15:05:14,535 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:05:14,536 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:05:14,536 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:05:14,536 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:05:14,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:13" (3/4) ... [2023-12-02 15:05:14,539 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:05:14,540 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:05:14,541 INFO L158 Benchmark]: Toolchain (without parser) took 1673.84ms. Allocated memory is still 140.5MB. Free memory was 97.5MB in the beginning and 108.7MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:05:14,542 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:05:14,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.98ms. Allocated memory is still 140.5MB. Free memory was 97.5MB in the beginning and 103.2MB in the end (delta: -5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:05:14,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.62ms. Allocated memory is still 140.5MB. Free memory was 103.2MB in the beginning and 100.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:05:14,544 INFO L158 Benchmark]: Boogie Preprocessor took 34.92ms. Allocated memory is still 140.5MB. Free memory was 100.7MB in the beginning and 99.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:05:14,544 INFO L158 Benchmark]: RCFGBuilder took 509.05ms. Allocated memory is still 140.5MB. Free memory was 99.5MB in the beginning and 76.0MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 15:05:14,545 INFO L158 Benchmark]: TraceAbstraction took 724.25ms. Allocated memory is still 140.5MB. Free memory was 75.1MB in the beginning and 109.1MB in the end (delta: -34.0MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2023-12-02 15:05:14,546 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 140.5MB. Free memory was 109.0MB in the beginning and 108.7MB in the end (delta: 317.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:05:14,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.98ms. Allocated memory is still 140.5MB. Free memory was 97.5MB in the beginning and 103.2MB in the end (delta: -5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.62ms. Allocated memory is still 140.5MB. Free memory was 103.2MB in the beginning and 100.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.92ms. Allocated memory is still 140.5MB. Free memory was 100.7MB in the beginning and 99.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 509.05ms. Allocated memory is still 140.5MB. Free memory was 99.5MB in the beginning and 76.0MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 724.25ms. Allocated memory is still 140.5MB. Free memory was 75.1MB in the beginning and 109.1MB in the end (delta: -34.0MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 140.5MB. Free memory was 109.0MB in the beginning and 108.7MB in the end (delta: 317.0kB). 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 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] float var_1_2 = 8.3; [L24] float var_1_3 = 2.25; [L25] float var_1_4 = 10.3; [L26] unsigned char var_1_6 = 0; [L27] signed long int var_1_7 = 128; [L28] float var_1_8 = 9.8; [L29] unsigned long int var_1_13 = 1; [L30] unsigned long int var_1_14 = 32; [L31] signed char var_1_15 = -10; [L32] signed char var_1_16 = 16; [L33] signed char var_1_17 = 25; [L34] signed char var_1_18 = 1; [L35] signed char var_1_19 = 0; [L36] signed char var_1_20 = 32; [L37] signed short int var_1_21 = 256; [L38] signed char var_1_22 = 16; [L39] unsigned char var_1_23 = 0; [L40] signed short int last_1_var_1_21 = 256; [L100] isInitial = 1 [L101] FCALL initially() [L102] COND TRUE 1 [L103] CALL updateLastVariables() [L93] last_1_var_1_21 = var_1_21 [L103] RET updateLastVariables() [L104] CALL updateVariables() [L62] var_1_2 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_3=9/4, var_1_4=103/10, var_1_6=0, var_1_7=128, var_1_8=49/5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_3=9/4, var_1_4=103/10, var_1_6=0, var_1_7=128, var_1_8=49/5] [L64] var_1_3 = __VERIFIER_nondet_float() [L65] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_4=103/10, var_1_6=0, var_1_7=128, var_1_8=49/5] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_4=103/10, var_1_6=0, var_1_7=128, var_1_8=49/5] [L66] var_1_4 = __VERIFIER_nondet_float() [L67] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128, var_1_8=49/5] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128, var_1_8=49/5] [L68] var_1_6 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_7=128, var_1_8=49/5] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_7=128, var_1_8=49/5] [L70] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128, var_1_8=49/5] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128, var_1_8=49/5] [L71] var_1_8 = __VERIFIER_nondet_float() [L72] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=32, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L73] var_1_14 = __VERIFIER_nondet_ulong() [L74] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L75] CALL assume_abort_if_not(var_1_14 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_14 <= 4294967294) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=16, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L76] var_1_16 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L78] CALL assume_abort_if_not(var_1_16 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_16 <= 63) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=25, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L79] var_1_17 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_17 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_17 >= -1) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L81] CALL assume_abort_if_not(var_1_17 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_17 <= 126) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=1, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L82] var_1_18 = __VERIFIER_nondet_char() [L83] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L84] CALL assume_abort_if_not(var_1_18 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_18 <= 31) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L85] var_1_19 = __VERIFIER_nondet_char() [L86] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L87] CALL assume_abort_if_not(var_1_19 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_19 <= 63) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=32, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L88] var_1_20 = __VERIFIER_nondet_char() [L89] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=28, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=28, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L90] CALL assume_abort_if_not(var_1_20 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=28, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_20 <= 63) VAL [isInitial=1, last_1_var_1_21=256, var_1_13=1, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=28, var_1_21=256, var_1_22=16, var_1_23=0, var_1_6=0, var_1_7=128] [L104] RET updateVariables() [L105] CALL step() [L44] var_1_13 = var_1_14 [L45] var_1_21 = last_1_var_1_21 [L46] var_1_22 = var_1_16 [L47] var_1_23 = var_1_6 [L48] COND FALSE !(((((1.1f) < (var_1_2)) ? (1.1f) : (var_1_2))) > (var_1_3 * var_1_4)) [L51] signed char stepLocal_0 = var_1_22; [L52] COND FALSE !(stepLocal_0 != ((((var_1_22) < (var_1_21)) ? (var_1_22) : (var_1_21)))) [L55] COND FALSE !(var_1_4 <= (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))) * var_1_8)) [L58] var_1_7 = var_1_22 [L105] RET step() [L106] CALL, EXPR property() [L96-L97] return (((((((((((1.1f) < (var_1_2)) ? (1.1f) : (var_1_2))) > (var_1_3 * var_1_4)) ? (var_1_1 == ((unsigned char) (var_1_23 && var_1_6))) : 1) && ((var_1_4 <= (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))) * var_1_8)) ? (var_1_7 == ((signed long int) (((((((((var_1_22 + var_1_15)) > (var_1_15)) ? ((var_1_22 + var_1_15)) : (var_1_15)))) > (((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))) ? ((((((var_1_22 + var_1_15)) > (var_1_15)) ? ((var_1_22 + var_1_15)) : (var_1_15)))) : (((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15)))))))) : (var_1_7 == ((signed long int) var_1_22)))) && (var_1_13 == ((unsigned long int) var_1_14))) && ((var_1_22 != ((((var_1_22) < (var_1_21)) ? (var_1_22) : (var_1_21)))) ? (var_1_15 == ((signed char) ((((((10 + var_1_16)) < (var_1_17)) ? ((10 + var_1_16)) : (var_1_17))) - ((32 - var_1_18) + ((((var_1_19) > (var_1_20)) ? (var_1_19) : (var_1_20))))))) : 1)) && (var_1_21 == ((signed short int) last_1_var_1_21))) && (var_1_22 == ((signed char) var_1_16))) && (var_1_23 == ((unsigned char) var_1_6)) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=256, var_1_13=0, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=28, var_1_21=256, var_1_22=9, var_1_23=0, var_1_6=0, var_1_7=9] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=256, var_1_13=0, var_1_14=0, var_1_15=-10, var_1_16=9, var_1_17=19, var_1_18=31, var_1_19=0, var_1_1=0, var_1_20=28, var_1_21=256, var_1_22=9, var_1_23=0, var_1_6=0, var_1_7=9] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 18, 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=38occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 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 [2023-12-02 15:05:14,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/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_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh --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 e232e31d2ef49a20919d421300baab40e8d32863fd290aed1658ebcf167ecf0c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:05:16,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:05:16,690 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 15:05:16,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:05:16,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:05:16,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:05:16,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:05:16,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:05:16,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:05:16,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:05:16,727 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:05:16,728 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:05:16,728 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:05:16,729 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:05:16,729 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:05:16,730 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:05:16,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:05:16,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:05:16,732 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:05:16,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:05:16,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:05:16,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:05:16,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:05:16,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:05:16,735 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:05:16,736 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:05:16,736 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:05:16,736 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:05:16,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:05:16,737 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:05:16,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:05:16,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:05:16,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:05:16,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:05:16,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:05:16,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:05:16,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:05:16,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:05:16,740 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:05:16,740 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:05:16,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:05:16,740 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:05:16,741 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:05:16,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:05:16,741 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_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e232e31d2ef49a20919d421300baab40e8d32863fd290aed1658ebcf167ecf0c [2023-12-02 15:05:17,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:05:17,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:05:17,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:05:17,074 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:05:17,074 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:05:17,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i [2023-12-02 15:05:19,951 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:05:20,196 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:05:20,197 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i [2023-12-02 15:05:20,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/data/cb6421727/8bdac89dc95a4fbb9a1d9ef2def645fd/FLAG7e5d78d39 [2023-12-02 15:05:20,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/data/cb6421727/8bdac89dc95a4fbb9a1d9ef2def645fd [2023-12-02 15:05:20,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:05:20,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:05:20,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:05:20,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:05:20,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:05:20,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462e4744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20, skipping insertion in model container [2023-12-02 15:05:20,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,269 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:05:20,413 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_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i[917,930] [2023-12-02 15:05:20,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:05:20,487 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:05:20,499 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_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-63.i[917,930] [2023-12-02 15:05:20,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:05:20,551 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:05:20,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20 WrapperNode [2023-12-02 15:05:20,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:05:20,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:05:20,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:05:20,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:05:20,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,608 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-12-02 15:05:20,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:05:20,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:05:20,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:05:20,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:05:20,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,643 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,649 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:05:20,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:05:20,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:05:20,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:05:20,658 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (1/1) ... [2023-12-02 15:05:20,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:05:20,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:05:20,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:05:20,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:05:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:05:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:05:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:05:20,737 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:05:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:05:20,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:05:20,828 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:05:20,831 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:05:23,923 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:05:23,985 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:05:23,985 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:05:23,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:23 BoogieIcfgContainer [2023-12-02 15:05:23,986 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:05:23,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:05:23,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:05:23,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:05:23,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:05:20" (1/3) ... [2023-12-02 15:05:23,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc0af4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:05:23, skipping insertion in model container [2023-12-02 15:05:23,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:20" (2/3) ... [2023-12-02 15:05:23,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc0af4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:05:23, skipping insertion in model container [2023-12-02 15:05:23,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:23" (3/3) ... [2023-12-02 15:05:23,996 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-63.i [2023-12-02 15:05:24,017 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:05:24,018 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:05:24,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:05:24,073 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;@7dc74932, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:05:24,073 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:05:24,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 15:05:24,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 15:05:24,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:24,090 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:24,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:05:24,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:24,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1128104834, now seen corresponding path program 1 times [2023-12-02 15:05:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:24,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550769915] [2023-12-02 15:05:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:24,110 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 [2023-12-02 15:05:24,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:24,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:05:24,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:05:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:24,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 15:05:24,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:24,518 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-12-02 15:05:24,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:24,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:24,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550769915] [2023-12-02 15:05:24,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550769915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:24,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:24,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:05:24,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970695459] [2023-12-02 15:05:24,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:24,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:05:24,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:24,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:05:24,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:05:24,566 INFO L87 Difference]: Start difference. First operand has 46 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 15:05:26,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:26,443 INFO L93 Difference]: Finished difference Result 89 states and 154 transitions. [2023-12-02 15:05:26,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:05:26,464 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 110 [2023-12-02 15:05:26,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:26,473 INFO L225 Difference]: With dead ends: 89 [2023-12-02 15:05:26,473 INFO L226 Difference]: Without dead ends: 44 [2023-12-02 15:05:26,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:05:26,481 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:26,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-02 15:05:26,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-02 15:05:26,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-12-02 15:05:26,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 15:05:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2023-12-02 15:05:26,527 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 110 [2023-12-02 15:05:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:26,534 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 64 transitions. [2023-12-02 15:05:26,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 15:05:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2023-12-02 15:05:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 15:05:26,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:26,538 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:26,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:05:26,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:05:26,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:05:26,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:26,740 INFO L85 PathProgramCache]: Analyzing trace with hash -314708994, now seen corresponding path program 1 times [2023-12-02 15:05:26,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:26,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535372955] [2023-12-02 15:05:26,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:26,741 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 [2023-12-02 15:05:26,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:26,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:05:26,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:05:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:27,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 15:05:27,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:28,017 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 321 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 15:05:28,017 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:05:28,529 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:28,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535372955] [2023-12-02 15:05:28,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535372955] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:05:28,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [389134815] [2023-12-02 15:05:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:28,530 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:05:28,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:05:28,537 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:05:28,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 15:05:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:29,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 15:05:29,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 321 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 15:05:30,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:05:30,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [389134815] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:05:30,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106769716] [2023-12-02 15:05:30,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:30,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:05:30,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:05:30,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:05:30,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfffaa1-acf9-4165-ab4c-ea11ba7b6041/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:05:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:30,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 15:05:30,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:07:06,547 WARN L293 SmtUtils]: Spent 24.40s on a formula simplification. DAG size of input: 64 DAG size of output: 55 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)