./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.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_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/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_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/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_50310e6f-45b3-44fe-8320-91747be0defc/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 abdeae89f68926168a979793b9e178793666804156bbffb81f0dbc32b2012e6a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:52,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:52,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:29:52,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:52,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:52,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:52,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:52,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:52,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:52,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:52,377 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:52,378 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:52,378 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:52,380 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:29:52,381 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:52,381 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:52,382 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:29:52,382 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:29:52,383 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:52,383 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:29:52,384 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:29:52,385 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:29:52,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:52,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:52,387 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:29:52,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:29:52,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:29:52,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:52,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:52,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:52,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:52,391 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:29:52,391 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:52,391 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:52,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:52,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:52,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:52,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:52,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:52,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:52,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:52,394 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:29:52,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:29:52,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:52,396 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:52,396 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:52,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:52,396 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_50310e6f-45b3-44fe-8320-91747be0defc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abdeae89f68926168a979793b9e178793666804156bbffb81f0dbc32b2012e6a [2023-11-23 21:29:52,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:52,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:52,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:52,742 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:52,743 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:52,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i [2023-11-23 21:29:55,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:56,109 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:56,110 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i [2023-11-23 21:29:56,125 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/data/ee3b7abd5/bbf0879c14fb47228c22dbf775596e5b/FLAG09884e2fe [2023-11-23 21:29:56,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/data/ee3b7abd5/bbf0879c14fb47228c22dbf775596e5b [2023-11-23 21:29:56,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:56,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:56,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:56,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:56,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:56,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fef6dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56, skipping insertion in model container [2023-11-23 21:29:56,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,187 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:56,345 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_50310e6f-45b3-44fe-8320-91747be0defc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i[915,928] [2023-11-23 21:29:56,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:56,418 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:56,430 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_50310e6f-45b3-44fe-8320-91747be0defc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i[915,928] [2023-11-23 21:29:56,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:56,484 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:56,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56 WrapperNode [2023-11-23 21:29:56,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:56,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:56,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:56,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:56,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,559 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 151 [2023-11-23 21:29:56,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:56,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:56,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:56,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:56,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:56,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:56,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:56,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:56,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (1/1) ... [2023-11-23 21:29:56,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:56,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:56,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:56,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:56,699 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:56,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:56,778 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:56,781 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:57,133 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:57,526 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:57,526 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:57,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:57 BoogieIcfgContainer [2023-11-23 21:29:57,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:57,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:57,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:57,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:57,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:56" (1/3) ... [2023-11-23 21:29:57,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d7fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:57, skipping insertion in model container [2023-11-23 21:29:57,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:56" (2/3) ... [2023-11-23 21:29:57,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d7fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:57, skipping insertion in model container [2023-11-23 21:29:57,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:57" (3/3) ... [2023-11-23 21:29:57,543 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-51.i [2023-11-23 21:29:57,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:57,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:57,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:57,630 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;@335bafa5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:57,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:29:57,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:29:57,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:57,652 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:57,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:57,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:57,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1287581451, now seen corresponding path program 1 times [2023-11-23 21:29:57,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:57,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77730291] [2023-11-23 21:29:57,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:57,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:58,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:29:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:58,410 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:29:58,412 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:29:58,414 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:29:58,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:29:58,422 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:29:58,428 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:29:58,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:29:58 BoogieIcfgContainer [2023-11-23 21:29:58,558 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:29:58,560 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:29:58,560 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:29:58,560 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:29:58,561 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:57" (3/4) ... [2023-11-23 21:29:58,565 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:29:58,566 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:29:58,568 INFO L158 Benchmark]: Toolchain (without parser) took 2422.50ms. Allocated memory is still 182.5MB. Free memory was 135.6MB in the beginning and 83.4MB in the end (delta: 52.2MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2023-11-23 21:29:58,568 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 144.7MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:58,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.00ms. Allocated memory is still 182.5MB. Free memory was 135.6MB in the beginning and 121.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:29:58,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.77ms. Allocated memory is still 182.5MB. Free memory was 121.6MB in the beginning and 118.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:58,571 INFO L158 Benchmark]: Boogie Preprocessor took 42.87ms. Allocated memory is still 182.5MB. Free memory was 118.9MB in the beginning and 117.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:58,577 INFO L158 Benchmark]: RCFGBuilder took 920.07ms. Allocated memory is still 182.5MB. Free memory was 117.4MB in the beginning and 147.4MB in the end (delta: -29.9MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2023-11-23 21:29:58,578 INFO L158 Benchmark]: TraceAbstraction took 1027.17ms. Allocated memory is still 182.5MB. Free memory was 146.3MB in the beginning and 84.5MB in the end (delta: 61.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-23 21:29:58,579 INFO L158 Benchmark]: Witness Printer took 6.72ms. Allocated memory is still 182.5MB. Free memory was 84.5MB in the beginning and 83.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:58,588 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 144.7MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.00ms. Allocated memory is still 182.5MB. Free memory was 135.6MB in the beginning and 121.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.77ms. Allocated memory is still 182.5MB. Free memory was 121.6MB in the beginning and 118.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.87ms. Allocated memory is still 182.5MB. Free memory was 118.9MB in the beginning and 117.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 920.07ms. Allocated memory is still 182.5MB. Free memory was 117.4MB in the beginning and 147.4MB in the end (delta: -29.9MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1027.17ms. Allocated memory is still 182.5MB. Free memory was 146.3MB in the beginning and 84.5MB in the end (delta: 61.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 6.72ms. Allocated memory is still 182.5MB. Free memory was 84.5MB in the beginning and 83.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 47, overapproximation of someUnaryDOUBLEoperation at line 37. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 128; [L23] double var_1_4 = 32.3; [L24] double var_1_5 = 0.25; [L25] unsigned char var_1_7 = 2; [L26] signed char var_1_8 = -10; [L27] signed char var_1_9 = 5; [L28] signed char var_1_10 = 4; [L29] signed char var_1_11 = 100; [L30] unsigned long int var_1_12 = 8; [L31] unsigned char var_1_13 = 0; [L32] unsigned long int var_1_15 = 1114432789; [L33] double var_1_17 = 256.8; [L34] double var_1_18 = 1.25; [L35] unsigned long int var_1_19 = 16; [L36] unsigned char var_1_21 = 1; [L37] double var_1_22 = -0.5; [L38] unsigned char var_1_23 = 0; [L39] unsigned char var_1_24 = 1; [L40] unsigned char last_1_var_1_1 = 128; [L41] unsigned long int last_1_var_1_12 = 8; [L42] double last_1_var_1_17 = 256.8; [L43] unsigned char last_1_var_1_21 = 1; [L145] isInitial = 1 [L146] FCALL initially() [L147] COND TRUE 1 [L148] CALL updateLastVariables() [L135] last_1_var_1_1 = var_1_1 [L136] last_1_var_1_12 = var_1_12 [L137] last_1_var_1_17 = var_1_17 [L138] last_1_var_1_21 = var_1_21 [L148] RET updateLastVariables() [L149] CALL updateVariables() [L100] var_1_4 = __VERIFIER_nondet_double() [L101] CALL assume_abort_if_not((var_1_4 >= 0.0F && 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_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_5=1/4, var_1_7=2, var_1_8=-10, var_1_9=5] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not((var_1_4 >= 0.0F && 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_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_5=1/4, var_1_7=2, var_1_8=-10, var_1_9=5] [L102] var_1_5 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=2, var_1_8=-10, var_1_9=5] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=2, var_1_8=-10, var_1_9=5] [L104] var_1_7 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_8=-10, var_1_9=5] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_8=-10, var_1_9=5] [L106] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=5] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=5] [L107] var_1_9 = __VERIFIER_nondet_char() [L108] CALL assume_abort_if_not(var_1_9 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_9 >= -1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L109] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L110] var_1_10 = __VERIFIER_nondet_char() [L111] CALL assume_abort_if_not(var_1_10 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_10 >= -1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L112] CALL assume_abort_if_not(var_1_10 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_10 <= 126) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L113] var_1_11 = __VERIFIER_nondet_char() [L114] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L115] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L116] var_1_13 = __VERIFIER_nondet_uchar() [L117] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L118] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L119] var_1_15 = __VERIFIER_nondet_ulong() [L120] CALL assume_abort_if_not(var_1_15 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_15 >= 1073741823) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L121] CALL assume_abort_if_not(var_1_15 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_15 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L122] var_1_18 = __VERIFIER_nondet_double() [L123] 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, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L123] 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, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L124] var_1_22 = __VERIFIER_nondet_double() [L125] CALL assume_abort_if_not((var_1_22 >= -922337.2036854776000e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854776000e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not((var_1_22 >= -922337.2036854776000e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854776000e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L126] CALL assume_abort_if_not(var_1_22 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_22 != 0.0F) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L127] var_1_23 = __VERIFIER_nondet_uchar() [L128] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L129] CALL assume_abort_if_not(var_1_23 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_23 <= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L130] var_1_24 = __VERIFIER_nondet_uchar() [L131] CALL assume_abort_if_not(var_1_24 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_24 >= 1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L132] CALL assume_abort_if_not(var_1_24 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_24 <= 1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=8, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=3] [L149] RET updateVariables() [L150] CALL step() [L47] unsigned char stepLocal_3 = ((((var_1_4) > (last_1_var_1_17)) ? (var_1_4) : (last_1_var_1_17))) > var_1_18; [L48] COND TRUE last_1_var_1_21 || stepLocal_3 [L49] COND FALSE !(var_1_18 > ((((last_1_var_1_17) < 0 ) ? -(last_1_var_1_17) : (last_1_var_1_17)))) [L52] var_1_19 = var_1_11 [L57] unsigned long int stepLocal_1 = last_1_var_1_12; [L58] unsigned long int stepLocal_0 = 32u; [L59] COND TRUE stepLocal_0 >= last_1_var_1_12 [L60] COND TRUE stepLocal_1 <= last_1_var_1_12 [L61] COND TRUE (var_1_4 - var_1_5) >= last_1_var_1_17 [L62] var_1_1 = var_1_7 [L68] COND FALSE !((((((~ var_1_1)) < (8)) ? ((~ var_1_1)) : (8))) > var_1_11) [L71] COND TRUE ! (var_1_17 > var_1_5) [L72] var_1_8 = (((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))) - var_1_11) [L76] unsigned long int stepLocal_4 = var_1_19; [L77] COND TRUE (var_1_18 / ((((5.5) > (var_1_22)) ? (5.5) : (var_1_22)))) > 10.5 [L78] COND TRUE \read(var_1_13) [L79] COND FALSE !(var_1_1 < stepLocal_4) [L82] var_1_21 = var_1_24 [L90] unsigned char stepLocal_2 = var_1_21; [L91] COND TRUE var_1_21 && stepLocal_2 [L92] var_1_12 = var_1_11 [L150] RET step() [L151] CALL, EXPR property() [L141-L142] return ((((((32u >= last_1_var_1_12) ? ((last_1_var_1_12 <= last_1_var_1_12) ? (((var_1_4 - var_1_5) >= last_1_var_1_17) ? (var_1_1 == ((unsigned char) var_1_7)) : 1) : 1) : (var_1_1 == ((unsigned char) var_1_7))) && ((! (var_1_17 > var_1_5)) ? (var_1_8 == ((signed char) (((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))) - var_1_11))) : (var_1_8 == ((signed char) -4)))) && ((var_1_21 && var_1_21) ? (var_1_12 == ((unsigned long int) var_1_11)) : (var_1_21 ? (var_1_12 == ((unsigned long int) (((((var_1_19) > ((var_1_11 + var_1_7))) ? (var_1_19) : ((var_1_11 + var_1_7)))) + (var_1_15 - var_1_1)))) : 1))) && (((((((~ var_1_1)) < (8)) ? ((~ var_1_1)) : (8))) > var_1_11) ? (var_1_17 == ((double) var_1_18)) : 1)) && ((last_1_var_1_21 || (((((var_1_4) > (last_1_var_1_17)) ? (var_1_4) : (last_1_var_1_17))) > var_1_18)) ? ((var_1_18 > ((((last_1_var_1_17) < 0 ) ? -(last_1_var_1_17) : (last_1_var_1_17)))) ? (var_1_19 == ((unsigned long int) last_1_var_1_1)) : (var_1_19 == ((unsigned long int) var_1_11))) : (var_1_19 == ((unsigned long int) last_1_var_1_1)))) && (((var_1_18 / ((((5.5) > (var_1_22)) ? (5.5) : (var_1_22)))) > 10.5) ? (var_1_13 ? ((var_1_1 < var_1_19) ? (var_1_21 == ((unsigned char) (! var_1_23))) : (var_1_21 == ((unsigned char) var_1_24))) : (var_1_21 == ((unsigned char) var_1_23))) : (var_1_21 == ((unsigned char) var_1_23))) ; [L151] RET, EXPR property() [L151] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=7, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_18=1284/5, var_1_19=7, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-4, var_1_9=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=3, var_1_11=7, var_1_12=7, var_1_13=1, var_1_15=2147483647, var_1_17=1284/5, var_1_18=1284/5, var_1_19=7, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-4, var_1_9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 21, 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=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:29:58,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/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_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/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_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/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_50310e6f-45b3-44fe-8320-91747be0defc/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 abdeae89f68926168a979793b9e178793666804156bbffb81f0dbc32b2012e6a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:01,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:01,446 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:30:01,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:01,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:01,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:01,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:01,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:01,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:01,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:01,518 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:01,519 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:01,519 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:01,521 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:01,522 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:01,522 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:01,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:01,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:01,524 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:30:01,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:30:01,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:01,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:01,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:01,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:01,528 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:30:01,529 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:30:01,529 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:30:01,530 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:30:01,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:01,531 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:01,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:01,533 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:30:01,533 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:01,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:01,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:01,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:01,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:01,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:01,536 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:30:01,537 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:30:01,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:01,538 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:01,538 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:01,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:01,539 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_50310e6f-45b3-44fe-8320-91747be0defc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abdeae89f68926168a979793b9e178793666804156bbffb81f0dbc32b2012e6a [2023-11-23 21:30:01,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:02,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:02,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:02,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:02,006 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:02,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i [2023-11-23 21:30:05,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:05,642 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:05,644 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i [2023-11-23 21:30:05,654 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/data/e95a67e92/13b3975528264e59830ce727e132019c/FLAG0686a1aed [2023-11-23 21:30:05,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/data/e95a67e92/13b3975528264e59830ce727e132019c [2023-11-23 21:30:05,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:05,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:05,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:05,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:05,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:05,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:05" (1/1) ... [2023-11-23 21:30:05,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519526f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:05, skipping insertion in model container [2023-11-23 21:30:05,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:05" (1/1) ... [2023-11-23 21:30:05,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:05,874 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_50310e6f-45b3-44fe-8320-91747be0defc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i[915,928] [2023-11-23 21:30:05,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:05,953 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:05,967 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_50310e6f-45b3-44fe-8320-91747be0defc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-51.i[915,928] [2023-11-23 21:30:06,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:06,040 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:06,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06 WrapperNode [2023-11-23 21:30:06,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:06,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:06,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:06,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:06,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,094 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 148 [2023-11-23 21:30:06,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:06,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:06,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:06,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:06,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:06,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:06,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:06,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:06,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:06,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:06,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:06,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:06,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:06,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:30:06,269 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:30:06,269 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:30:06,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:06,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:06,358 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:06,361 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:13,453 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:13,505 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:13,505 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:13,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:13 BoogieIcfgContainer [2023-11-23 21:30:13,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:13,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:13,509 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:13,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:13,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:05" (1/3) ... [2023-11-23 21:30:13,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4593384f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:13, skipping insertion in model container [2023-11-23 21:30:13,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06" (2/3) ... [2023-11-23 21:30:13,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4593384f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:13, skipping insertion in model container [2023-11-23 21:30:13,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:13" (3/3) ... [2023-11-23 21:30:13,516 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-51.i [2023-11-23 21:30:13,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:13,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:13,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:13,585 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;@54505df8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:13,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:13,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 38 states have internal predecessors, (54), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:30:13,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:30:13,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:13,607 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:13,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:13,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:13,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1138637589, now seen corresponding path program 1 times [2023-11-23 21:30:13,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:13,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909983924] [2023-11-23 21:30:13,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:13,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:13,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:13,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:13,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:30:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:14,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:30:14,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-11-23 21:30:14,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:14,821 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:14,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909983924] [2023-11-23 21:30:14,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909983924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:14,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:14,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:14,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020777536] [2023-11-23 21:30:14,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:14,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:30:14,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:14,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:30:14,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:30:14,883 INFO L87 Difference]: Start difference. First operand has 61 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 38 states have internal predecessors, (54), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:30:17,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:17,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:17,206 INFO L93 Difference]: Finished difference Result 119 states and 211 transitions. [2023-11-23 21:30:17,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:30:17,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 131 [2023-11-23 21:30:17,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:17,291 INFO L225 Difference]: With dead ends: 119 [2023-11-23 21:30:17,291 INFO L226 Difference]: Without dead ends: 59 [2023-11-23 21:30:17,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:30:17,298 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:17,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 21:30:17,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-23 21:30:17,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-23 21:30:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 36 states have internal predecessors, (49), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:30:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 91 transitions. [2023-11-23 21:30:17,344 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 91 transitions. Word has length 131 [2023-11-23 21:30:17,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:17,345 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 91 transitions. [2023-11-23 21:30:17,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:30:17,346 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 91 transitions. [2023-11-23 21:30:17,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:30:17,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:17,350 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:17,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:17,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:17,574 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:17,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:17,575 INFO L85 PathProgramCache]: Analyzing trace with hash 395082289, now seen corresponding path program 1 times [2023-11-23 21:30:17,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:17,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16779151] [2023-11-23 21:30:17,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:17,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:17,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:17,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:17,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:30:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:18,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:30:18,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:21,030 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-23 21:30:21,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:21,031 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:21,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16779151] [2023-11-23 21:30:21,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16779151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:21,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:21,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:21,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816980392] [2023-11-23 21:30:21,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:21,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:30:21,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:21,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:30:21,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:30:21,037 INFO L87 Difference]: Start difference. First operand 59 states and 91 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 21:30:23,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:26,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:28,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:30,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:32,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:34,738 WARN L539 Checker$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 21:30:36,756 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 21:30:36,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:36,757 INFO L93 Difference]: Finished difference Result 176 states and 272 transitions. [2023-11-23 21:30:36,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:30:36,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2023-11-23 21:30:36,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:36,890 INFO L225 Difference]: With dead ends: 176 [2023-11-23 21:30:36,890 INFO L226 Difference]: Without dead ends: 118 [2023-11-23 21:30:36,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:30:36,893 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 64 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 43 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:36,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 252 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 15 Invalid, 7 Unknown, 0 Unchecked, 15.6s Time] [2023-11-23 21:30:36,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-23 21:30:36,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 98. [2023-11-23 21:30:36,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 53 states have internal predecessors, (66), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-23 21:30:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 150 transitions. [2023-11-23 21:30:36,938 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 150 transitions. Word has length 131 [2023-11-23 21:30:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:36,939 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 150 transitions. [2023-11-23 21:30:36,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 21:30:36,940 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 150 transitions. [2023-11-23 21:30:36,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 21:30:36,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:36,954 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:36,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/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)] Ended with exit code 0 [2023-11-23 21:30:37,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:37,174 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:37,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:37,175 INFO L85 PathProgramCache]: Analyzing trace with hash -610856372, now seen corresponding path program 1 times [2023-11-23 21:30:37,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:37,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018470959] [2023-11-23 21:30:37,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:37,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:37,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:37,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:37,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50310e6f-45b3-44fe-8320-91747be0defc/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:30:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:38,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:30:38,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:40,933 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-23 21:30:40,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:40,934 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:40,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018470959] [2023-11-23 21:30:40,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018470959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:40,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:40,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:30:40,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726552215] [2023-11-23 21:30:40,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:40,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:30:40,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:40,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:30:40,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:30:40,938 INFO L87 Difference]: Start difference. First operand 98 states and 150 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 21:30:44,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:46,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:48,266 WARN L539 Checker$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 21:30:50,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:52,695 WARN L539 Checker$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 21:30:55,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []