./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX --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 8acf6a74ca8d699ffcb22293fc16bf11fc1097ba870cc3f6ecda64023dbb2e2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:44,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:44,540 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:55:44,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:44,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:44,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:44,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:44,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:44,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:44,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:44,612 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:44,613 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:44,614 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:44,616 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:55:44,616 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:44,617 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:44,617 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:55:44,617 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:55:44,618 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:44,619 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:55:44,619 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:55:44,620 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:55:44,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:44,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:44,622 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:55:44,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:55:44,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:55:44,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:44,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:44,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:44,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:44,626 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:55:44,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:44,627 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:44,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:44,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:44,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:44,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:44,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:44,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:44,629 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:55:44,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:55:44,630 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:44,630 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:44,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:44,631 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_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8acf6a74ca8d699ffcb22293fc16bf11fc1097ba870cc3f6ecda64023dbb2e2b [2023-11-12 00:55:44,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:44,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:44,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:44,989 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:44,990 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:44,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i [2023-11-12 00:55:48,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:48,470 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:48,471 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i [2023-11-12 00:55:48,483 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/data/6b34bb3a6/448a726ca36742c0819a8c69f52dcaa5/FLAG3d25f2d17 [2023-11-12 00:55:48,501 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/data/6b34bb3a6/448a726ca36742c0819a8c69f52dcaa5 [2023-11-12 00:55:48,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:48,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:48,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:48,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:48,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:48,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f170a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48, skipping insertion in model container [2023-11-12 00:55:48,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,569 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:48,717 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_01b02d8c-e57b-46af-83aa-566c8cdd612f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i[915,928] [2023-11-12 00:55:48,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:48,787 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:48,801 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_01b02d8c-e57b-46af-83aa-566c8cdd612f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i[915,928] [2023-11-12 00:55:48,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:48,860 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:48,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48 WrapperNode [2023-11-12 00:55:48,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:48,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:48,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:48,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:48,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,924 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 158 [2023-11-12 00:55:48,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:48,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:48,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:48,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:48,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,954 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:48,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:48,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:48,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:48,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (1/1) ... [2023-11-12 00:55:48,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:49,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:49,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:49,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:55:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:55:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:55:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:49,141 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:49,143 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:55:49,498 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:49,834 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:49,834 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:55:49,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:49 BoogieIcfgContainer [2023-11-12 00:55:49,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:49,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:49,843 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:49,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:49,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:48" (1/3) ... [2023-11-12 00:55:49,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3138ba9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:49, skipping insertion in model container [2023-11-12 00:55:49,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:48" (2/3) ... [2023-11-12 00:55:49,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3138ba9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:49, skipping insertion in model container [2023-11-12 00:55:49,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:49" (3/3) ... [2023-11-12 00:55:49,854 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-38.i [2023-11-12 00:55:49,875 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:49,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:55:49,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:55:49,960 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;@4054c527, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:55:49,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:55:49,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 00:55:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-12 00:55:49,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:49,976 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:49,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:49,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:49,981 INFO L85 PathProgramCache]: Analyzing trace with hash 572303870, now seen corresponding path program 1 times [2023-11-12 00:55:49,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:49,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294447722] [2023-11-12 00:55:49,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:49,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:50,214 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:55:50,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612819371] [2023-11-12 00:55:50,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:50,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:50,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:50,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:55:50,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:55:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:55:50,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:55:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:55:50,696 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:55:50,701 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:55:50,703 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:55:50,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:55:50,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:55:50,916 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:55:50,920 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:55:51,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:55:51 BoogieIcfgContainer [2023-11-12 00:55:51,033 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:55:51,034 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:55:51,034 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:55:51,035 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:55:51,035 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:49" (3/4) ... [2023-11-12 00:55:51,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:55:51,039 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:55:51,040 INFO L158 Benchmark]: Toolchain (without parser) took 2530.88ms. Allocated memory is still 190.8MB. Free memory was 158.3MB in the beginning and 132.0MB in the end (delta: 26.3MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2023-11-12 00:55:51,041 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:51,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.51ms. Allocated memory is still 190.8MB. Free memory was 158.0MB in the beginning and 144.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:55:51,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.38ms. Allocated memory is still 190.8MB. Free memory was 144.8MB in the beginning and 142.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:55:51,043 INFO L158 Benchmark]: Boogie Preprocessor took 49.78ms. Allocated memory is still 190.8MB. Free memory was 142.0MB in the beginning and 140.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:55:51,044 INFO L158 Benchmark]: RCFGBuilder took 862.55ms. Allocated memory is still 190.8MB. Free memory was 140.6MB in the beginning and 100.0MB in the end (delta: 40.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-12 00:55:51,045 INFO L158 Benchmark]: TraceAbstraction took 1190.54ms. Allocated memory is still 190.8MB. Free memory was 99.3MB in the beginning and 132.0MB in the end (delta: -32.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:51,045 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 190.8MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:51,049 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.51ms. Allocated memory is still 190.8MB. Free memory was 158.0MB in the beginning and 144.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.38ms. Allocated memory is still 190.8MB. Free memory was 144.8MB in the beginning and 142.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.78ms. Allocated memory is still 190.8MB. Free memory was 142.0MB in the beginning and 140.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 862.55ms. Allocated memory is still 190.8MB. Free memory was 140.6MB in the beginning and 100.0MB in the end (delta: 40.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1190.54ms. Allocated memory is still 190.8MB. Free memory was 99.3MB in the beginning and 132.0MB in the end (delta: -32.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 190.8MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 74, overapproximation of shiftRight at line 46, overapproximation of someBinaryArithmeticDOUBLEoperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_6 = 0; [L25] unsigned char var_1_7 = 0; [L26] unsigned short int var_1_8 = 4; [L27] signed long int var_1_11 = 100; [L28] signed long int var_1_12 = 8; [L29] unsigned short int var_1_13 = 128; [L30] double var_1_14 = 64.5; [L31] signed short int var_1_15 = 4; [L32] signed long int var_1_16 = -8; [L33] double var_1_17 = 255.5; [L34] double var_1_18 = 0.6; [L35] double var_1_19 = 1000000000000.5; [L36] double var_1_20 = 999999.25; [L37] signed short int var_1_21 = -64; [L38] signed char var_1_25 = -128; [L39] signed char var_1_26 = -8; [L40] unsigned short int last_1_var_1_8 = 4; [L41] signed short int last_1_var_1_21 = -64; [L42] signed char last_1_var_1_25 = -128; [L133] isInitial = 1 [L134] FCALL initially() [L135] COND TRUE 1 [L136] CALL updateLastVariables() [L124] last_1_var_1_8 = var_1_8 [L125] last_1_var_1_21 = var_1_21 [L126] last_1_var_1_25 = var_1_25 [L136] RET updateLastVariables() [L137] CALL updateVariables() [L88] var_1_4 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_4 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=100, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_4 >= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=100, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L90] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=100, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=100, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L91] var_1_6 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=100, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=100, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L93] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=100, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=100, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L94] var_1_11 = __VERIFIER_nondet_long() [L95] CALL assume_abort_if_not(var_1_11 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_11 >= -1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L96] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=8, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L97] var_1_12 = __VERIFIER_nondet_long() [L98] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L99] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=128, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L100] var_1_13 = __VERIFIER_nondet_ushort() [L101] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L102] CALL assume_abort_if_not(var_1_13 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_13 <= 65534) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=4, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L103] var_1_15 = __VERIFIER_nondet_short() [L104] CALL assume_abort_if_not(var_1_15 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_15 >= -32768) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L105] CALL assume_abort_if_not(var_1_15 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_15 <= 32767) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L106] CALL assume_abort_if_not(var_1_15 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_15 != 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=-8, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L107] var_1_16 = __VERIFIER_nondet_long() [L108] CALL assume_abort_if_not(var_1_16 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_16 >= -2147483648) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L109] CALL assume_abort_if_not(var_1_16 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_16 <= 2147483647) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L110] CALL assume_abort_if_not(var_1_16 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_16 != 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=511/2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L111] var_1_17 = __VERIFIER_nondet_double() [L112] CALL assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3/5, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L113] var_1_18 = __VERIFIER_nondet_double() [L114] CALL assume_abort_if_not((var_1_18 >= 0.0F && 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_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not((var_1_18 >= 0.0F && 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_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=2000000000001/2, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L115] var_1_19 = __VERIFIER_nondet_double() [L116] CALL assume_abort_if_not((var_1_19 >= 0.0F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not((var_1_19 >= 0.0F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=3999997/4, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L117] var_1_20 = __VERIFIER_nondet_double() [L118] CALL assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 4611686.018427382800e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=5, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 4611686.018427382800e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=5, var_1_21=-64, var_1_25=-128, var_1_26=-8, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L119] var_1_26 = __VERIFIER_nondet_char() [L120] CALL assume_abort_if_not(var_1_26 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=5, var_1_21=-64, var_1_25=-128, var_1_26=126, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_26 >= -127) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=5, var_1_21=-64, var_1_25=-128, var_1_26=126, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L121] CALL assume_abort_if_not(var_1_26 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=5, var_1_21=-64, var_1_25=-128, var_1_26=126, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_26 <= 126) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=129/2, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=5, var_1_21=-64, var_1_25=-128, var_1_26=126, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=4] [L137] RET updateVariables() [L138] CALL step() [L46] EXPR last_1_var_1_8 >> var_1_15 [L46] COND TRUE (last_1_var_1_8 + 4u) <= (last_1_var_1_8 >> var_1_15) [L47] var_1_21 = (((((last_1_var_1_25 + last_1_var_1_25)) < (last_1_var_1_25)) ? ((last_1_var_1_25 + last_1_var_1_25)) : (last_1_var_1_25))) [L51] signed long int stepLocal_1 = ((((-1) > (var_1_11)) ? (-1) : (var_1_11))) - var_1_12; [L52] signed long int stepLocal_0 = last_1_var_1_21 + last_1_var_1_21; [L53] COND FALSE !((last_1_var_1_21 * last_1_var_1_21) < stepLocal_1) [L58] var_1_8 = var_1_13 [L60] COND TRUE ! (var_1_21 > var_1_8) [L61] COND TRUE \read(var_1_4) [L62] var_1_25 = var_1_26 [L65] COND TRUE (8 / var_1_15) < (64 / var_1_16) [L66] COND TRUE var_1_8 >= var_1_15 [L67] var_1_14 = (var_1_17 - var_1_18) [L74] COND FALSE !((- var_1_14) <= var_1_14) [L77] COND FALSE !(var_1_14 <= var_1_14) [L80] var_1_1 = var_1_4 [L83] COND FALSE !(var_1_14 < ((((var_1_14) > ((128.5 * var_1_14))) ? (var_1_14) : ((128.5 * var_1_14))))) [L138] RET step() [L139] CALL, EXPR property() [L129] EXPR ((((((- var_1_14) <= var_1_14) ? (var_1_1 == ((unsigned char) var_1_4)) : ((var_1_14 <= var_1_14) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) var_1_4)))) && ((var_1_14 < ((((var_1_14) > ((128.5 * var_1_14))) ? (var_1_14) : ((128.5 * var_1_14))))) ? (var_1_7 == ((unsigned char) (var_1_1 && (! 1)))) : 1)) && (((last_1_var_1_21 * last_1_var_1_21) < (((((-1) > (var_1_11)) ? (-1) : (var_1_11))) - var_1_12)) ? (((last_1_var_1_21 + last_1_var_1_21) < var_1_12) ? (var_1_8 == ((unsigned short int) var_1_13)) : 1) : (var_1_8 == ((unsigned short int) var_1_13)))) && (((8 / var_1_15) < (64 / var_1_16)) ? ((var_1_8 >= var_1_15) ? (var_1_14 == ((double) (var_1_17 - var_1_18))) : (var_1_14 == ((double) (var_1_18 - (64.25 + ((((var_1_19) > (var_1_20)) ? (var_1_19) : (var_1_20)))))))) : (var_1_14 == ((double) var_1_18)))) && (((last_1_var_1_8 + 4u) <= (last_1_var_1_8 >> var_1_15)) ? (var_1_21 == ((signed short int) (((((last_1_var_1_25 + last_1_var_1_25)) < (last_1_var_1_25)) ? ((last_1_var_1_25 + last_1_var_1_25)) : (last_1_var_1_25))))) : (var_1_21 == ((signed short int) last_1_var_1_25))) [L129] EXPR last_1_var_1_8 >> var_1_15 [L129] EXPR ((((((- var_1_14) <= var_1_14) ? (var_1_1 == ((unsigned char) var_1_4)) : ((var_1_14 <= var_1_14) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) var_1_4)))) && ((var_1_14 < ((((var_1_14) > ((128.5 * var_1_14))) ? (var_1_14) : ((128.5 * var_1_14))))) ? (var_1_7 == ((unsigned char) (var_1_1 && (! 1)))) : 1)) && (((last_1_var_1_21 * last_1_var_1_21) < (((((-1) > (var_1_11)) ? (-1) : (var_1_11))) - var_1_12)) ? (((last_1_var_1_21 + last_1_var_1_21) < var_1_12) ? (var_1_8 == ((unsigned short int) var_1_13)) : 1) : (var_1_8 == ((unsigned short int) var_1_13)))) && (((8 / var_1_15) < (64 / var_1_16)) ? ((var_1_8 >= var_1_15) ? (var_1_14 == ((double) (var_1_17 - var_1_18))) : (var_1_14 == ((double) (var_1_18 - (64.25 + ((((var_1_19) > (var_1_20)) ? (var_1_19) : (var_1_20)))))))) : (var_1_14 == ((double) var_1_18)))) && (((last_1_var_1_8 + 4u) <= (last_1_var_1_8 >> var_1_15)) ? (var_1_21 == ((signed short int) (((((last_1_var_1_25 + last_1_var_1_25)) < (last_1_var_1_25)) ? ((last_1_var_1_25 + last_1_var_1_25)) : (last_1_var_1_25))))) : (var_1_21 == ((signed short int) last_1_var_1_25))) [L129-L130] return (((((((- var_1_14) <= var_1_14) ? (var_1_1 == ((unsigned char) var_1_4)) : ((var_1_14 <= var_1_14) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) var_1_4)))) && ((var_1_14 < ((((var_1_14) > ((128.5 * var_1_14))) ? (var_1_14) : ((128.5 * var_1_14))))) ? (var_1_7 == ((unsigned char) (var_1_1 && (! 1)))) : 1)) && (((last_1_var_1_21 * last_1_var_1_21) < (((((-1) > (var_1_11)) ? (-1) : (var_1_11))) - var_1_12)) ? (((last_1_var_1_21 + last_1_var_1_21) < var_1_12) ? (var_1_8 == ((unsigned short int) var_1_13)) : 1) : (var_1_8 == ((unsigned short int) var_1_13)))) && (((8 / var_1_15) < (64 / var_1_16)) ? ((var_1_8 >= var_1_15) ? (var_1_14 == ((double) (var_1_17 - var_1_18))) : (var_1_14 == ((double) (var_1_18 - (64.25 + ((((var_1_19) > (var_1_20)) ? (var_1_19) : (var_1_20)))))))) : (var_1_14 == ((double) var_1_18)))) && (((last_1_var_1_8 + 4u) <= (last_1_var_1_8 >> var_1_15)) ? (var_1_21 == ((signed short int) (((((last_1_var_1_25 + last_1_var_1_25)) < (last_1_var_1_25)) ? ((last_1_var_1_25 + last_1_var_1_25)) : (last_1_var_1_25))))) : (var_1_21 == ((signed short int) last_1_var_1_25)))) && ((! (var_1_21 > var_1_8)) ? (var_1_4 ? (var_1_25 == ((signed char) var_1_26)) : 1) : 1) ; [L139] RET, EXPR property() [L139] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=0, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=5, var_1_21=-256, var_1_25=126, var_1_26=126, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=-64, last_1_var_1_25=-128, last_1_var_1_8=4, var_1_11=2147483647, var_1_12=2147479551, var_1_13=1, var_1_14=0, var_1_15=1, var_1_16=4, var_1_17=2, var_1_18=3, var_1_19=4, var_1_1=1, var_1_20=5, var_1_21=-256, var_1_25=126, var_1_26=126, var_1_4=1, var_1_6=0, var_1_7=0, var_1_8=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 22, 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=43occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 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 [2023-11-12 00:55:51,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX --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 8acf6a74ca8d699ffcb22293fc16bf11fc1097ba870cc3f6ecda64023dbb2e2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:53,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:53,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:55:53,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:53,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:53,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:53,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:53,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:53,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:53,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:53,976 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:53,977 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:53,977 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:53,979 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:53,980 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:53,980 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:53,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:53,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:53,982 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:55:53,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:55:53,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:53,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:53,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:53,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:53,986 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:55:53,987 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:55:53,987 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:55:53,988 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:55:53,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:53,989 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:53,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:53,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:55:53,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:53,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:53,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:53,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:53,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:53,993 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:55:53,993 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:55:53,994 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:53,994 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:53,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:53,995 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_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8acf6a74ca8d699ffcb22293fc16bf11fc1097ba870cc3f6ecda64023dbb2e2b [2023-11-12 00:55:54,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:54,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:54,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:54,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:54,456 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:54,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i [2023-11-12 00:55:57,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:58,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:58,056 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i [2023-11-12 00:55:58,066 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/data/a23ff507d/6a82d719eb0548c3886a0d2e83b74855/FLAG5c81e590c [2023-11-12 00:55:58,091 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/data/a23ff507d/6a82d719eb0548c3886a0d2e83b74855 [2023-11-12 00:55:58,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:58,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:58,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:58,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:58,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:58,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3863eb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58, skipping insertion in model container [2023-11-12 00:55:58,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,152 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:58,344 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_01b02d8c-e57b-46af-83aa-566c8cdd612f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i[915,928] [2023-11-12 00:55:58,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:58,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:58,483 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_01b02d8c-e57b-46af-83aa-566c8cdd612f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-38.i[915,928] [2023-11-12 00:55:58,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:58,550 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:58,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58 WrapperNode [2023-11-12 00:55:58,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:58,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:58,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:58,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:58,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,614 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2023-11-12 00:55:58,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:58,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:58,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:58,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:58,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:58,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:58,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:58,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:58,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:58,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:58,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:58,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:55:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:55:58,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:55:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:58,864 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:58,866 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:56:02,962 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:56:02,970 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:56:02,970 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:56:02,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:02 BoogieIcfgContainer [2023-11-12 00:56:02,973 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:56:02,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:56:02,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:56:02,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:56:02,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:58" (1/3) ... [2023-11-12 00:56:02,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733cd93c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:02, skipping insertion in model container [2023-11-12 00:56:02,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (2/3) ... [2023-11-12 00:56:02,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733cd93c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:02, skipping insertion in model container [2023-11-12 00:56:02,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:02" (3/3) ... [2023-11-12 00:56:02,984 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-38.i [2023-11-12 00:56:03,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:56:03,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:56:03,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:03,064 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;@c438280, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:03,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:56:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 00:56:03,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-12 00:56:03,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:03,091 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:03,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:03,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:03,098 INFO L85 PathProgramCache]: Analyzing trace with hash 320053936, now seen corresponding path program 1 times [2023-11-12 00:56:03,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:03,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390037806] [2023-11-12 00:56:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:03,115 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 [2023-11-12 00:56:03,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:03,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:56:03,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:03,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:56:03,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:03,876 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2023-11-12 00:56:03,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:03,877 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:03,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390037806] [2023-11-12 00:56:03,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390037806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:03,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:03,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:03,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131367173] [2023-11-12 00:56:03,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:03,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:56:03,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:03,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:56:03,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:56:03,917 INFO L87 Difference]: Start difference. First operand has 64 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-12 00:56:03,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:03,946 INFO L93 Difference]: Finished difference Result 121 states and 212 transitions. [2023-11-12 00:56:03,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:56:03,949 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 138 [2023-11-12 00:56:03,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:03,957 INFO L225 Difference]: With dead ends: 121 [2023-11-12 00:56:03,957 INFO L226 Difference]: Without dead ends: 60 [2023-11-12 00:56:03,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:56:03,965 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:03,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-12 00:56:04,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-12 00:56:04,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 00:56:04,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2023-11-12 00:56:04,034 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 138 [2023-11-12 00:56:04,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:04,035 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2023-11-12 00:56:04,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-12 00:56:04,038 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2023-11-12 00:56:04,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-12 00:56:04,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:04,048 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:04,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:04,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:04,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:04,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:04,250 INFO L85 PathProgramCache]: Analyzing trace with hash 505512230, now seen corresponding path program 1 times [2023-11-12 00:56:04,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:04,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855189159] [2023-11-12 00:56:04,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:04,252 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 [2023-11-12 00:56:04,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:04,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:56:04,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:04,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:56:04,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:05,786 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-12 00:56:05,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:05,786 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:05,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855189159] [2023-11-12 00:56:05,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855189159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:05,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:05,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:56:05,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032923412] [2023-11-12 00:56:05,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:05,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:56:05,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:05,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:56:05,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:05,801 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 00:56:08,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:10,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:12,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:12,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:12,091 INFO L93 Difference]: Finished difference Result 267 states and 404 transitions. [2023-11-12 00:56:12,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:56:12,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 138 [2023-11-12 00:56:12,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:12,098 INFO L225 Difference]: With dead ends: 267 [2023-11-12 00:56:12,098 INFO L226 Difference]: Without dead ends: 210 [2023-11-12 00:56:12,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:56:12,102 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 151 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 45 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:12,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 474 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 18 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2023-11-12 00:56:12,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-12 00:56:12,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 115. [2023-11-12 00:56:12,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 68 states have internal predecessors, (87), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-12 00:56:12,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 175 transitions. [2023-11-12 00:56:12,147 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 175 transitions. Word has length 138 [2023-11-12 00:56:12,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:12,148 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 175 transitions. [2023-11-12 00:56:12,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 00:56:12,149 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 175 transitions. [2023-11-12 00:56:12,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-12 00:56:12,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:12,152 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:12,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:12,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:12,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:12,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash 929014557, now seen corresponding path program 1 times [2023-11-12 00:56:12,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:12,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84929464] [2023-11-12 00:56:12,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:12,368 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 [2023-11-12 00:56:12,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:12,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:56:12,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b02d8c-e57b-46af-83aa-566c8cdd612f/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:12,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 00:56:12,904 INFO L285 TraceCheckSpWp]: Computing forward predicates...