./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c51934b75642007b7e5ba630000c4f6d9fea2369763db606575965ad8705e431 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:06,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:06,724 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:35:06,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:06,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:06,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:06,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:06,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:06,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:06,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:06,763 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:06,764 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:06,764 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:06,765 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:35:06,766 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:06,766 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:06,767 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:35:06,767 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:35:06,768 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:06,769 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:35:06,769 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:35:06,770 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:35:06,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:06,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:06,772 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:35:06,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:35:06,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:35:06,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:06,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:06,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:06,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:06,776 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:35:06,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:06,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:06,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:06,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:06,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:06,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:06,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:06,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:06,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:06,781 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:35:06,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:35:06,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:06,783 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:06,783 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:06,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:06,783 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_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c51934b75642007b7e5ba630000c4f6d9fea2369763db606575965ad8705e431 [2023-11-23 20:35:07,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:07,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:07,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:07,150 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:07,151 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:07,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i [2023-11-23 20:35:10,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:10,524 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:10,525 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i [2023-11-23 20:35:10,535 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/data/c39b3d23a/723deeda8bac450e8efb72cf229d82e8/FLAG510ec7c33 [2023-11-23 20:35:10,550 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/data/c39b3d23a/723deeda8bac450e8efb72cf229d82e8 [2023-11-23 20:35:10,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:10,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:10,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:10,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:10,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:10,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:10,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11358dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10, skipping insertion in model container [2023-11-23 20:35:10,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:10,598 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:10,779 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_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i[917,930] [2023-11-23 20:35:10,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:10,862 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:10,874 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i[917,930] [2023-11-23 20:35:10,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:10,935 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:10,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10 WrapperNode [2023-11-23 20:35:10,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:10,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:10,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:10,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:10,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:10,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:10,993 INFO L138 Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 156 [2023-11-23 20:35:10,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:10,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:10,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:10,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:11,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:11,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:11,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:11,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:11,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:11,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:11,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:11,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:11,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:11,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:11,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:11,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:11,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (1/1) ... [2023-11-23 20:35:11,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:11,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:11,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:35:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:35:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:11,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:11,276 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:11,278 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:11,680 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:11,911 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:11,912 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:35:11,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:11 BoogieIcfgContainer [2023-11-23 20:35:11,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:11,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:11,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:11,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:11,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:10" (1/3) ... [2023-11-23 20:35:11,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af46859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:11, skipping insertion in model container [2023-11-23 20:35:11,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:10" (2/3) ... [2023-11-23 20:35:11,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af46859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:11, skipping insertion in model container [2023-11-23 20:35:11,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:11" (3/3) ... [2023-11-23 20:35:11,927 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-80.i [2023-11-23 20:35:11,948 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:11,948 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:12,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:12,031 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;@1f923bac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:12,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:12,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 20:35:12,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 20:35:12,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:12,054 INFO L195 NwaCegarLoop]: trace histogram [25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:12,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:12,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:12,063 INFO L85 PathProgramCache]: Analyzing trace with hash -575589831, now seen corresponding path program 1 times [2023-11-23 20:35:12,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:12,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774708717] [2023-11-23 20:35:12,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:12,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:12,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:35:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:13,004 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:35:13,006 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:35:13,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:35:13,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:35:13,014 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:35:13,019 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:35:13,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:35:13 BoogieIcfgContainer [2023-11-23 20:35:13,099 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:35:13,100 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:35:13,100 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:35:13,100 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:35:13,101 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:11" (3/4) ... [2023-11-23 20:35:13,103 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:35:13,104 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:35:13,105 INFO L158 Benchmark]: Toolchain (without parser) took 2550.86ms. Allocated memory is still 174.1MB. Free memory was 128.7MB in the beginning and 129.4MB in the end (delta: -714.5kB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2023-11-23 20:35:13,106 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:13,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.67ms. Allocated memory is still 174.1MB. Free memory was 128.5MB in the beginning and 114.4MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:35:13,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.19ms. Allocated memory is still 174.1MB. Free memory was 114.4MB in the beginning and 111.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:35:13,108 INFO L158 Benchmark]: Boogie Preprocessor took 40.88ms. Allocated memory is still 174.1MB. Free memory was 111.3MB in the beginning and 109.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:13,109 INFO L158 Benchmark]: RCFGBuilder took 878.08ms. Allocated memory is still 174.1MB. Free memory was 109.8MB in the beginning and 118.7MB in the end (delta: -8.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-23 20:35:13,109 INFO L158 Benchmark]: TraceAbstraction took 1182.75ms. Allocated memory is still 174.1MB. Free memory was 117.6MB in the beginning and 130.5MB in the end (delta: -12.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-23 20:35:13,110 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 174.1MB. Free memory was 130.5MB in the beginning and 129.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:35:13,114 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.67ms. Allocated memory is still 174.1MB. Free memory was 128.5MB in the beginning and 114.4MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.19ms. Allocated memory is still 174.1MB. Free memory was 114.4MB in the beginning and 111.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.88ms. Allocated memory is still 174.1MB. Free memory was 111.3MB in the beginning and 109.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 878.08ms. Allocated memory is still 174.1MB. Free memory was 109.8MB in the beginning and 118.7MB in the end (delta: -8.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1182.75ms. Allocated memory is still 174.1MB. Free memory was 117.6MB in the beginning and 130.5MB in the end (delta: -12.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 174.1MB. Free memory was 130.5MB in the beginning and 129.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 48, overapproximation of someBinaryFLOATComparisonOperation at line 73. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 128; [L23] double var_1_2 = 24.25; [L24] double var_1_3 = 128.5; [L25] double var_1_4 = 4.5; [L26] double var_1_5 = 49.5; [L27] signed short int var_1_6 = -16; [L28] signed short int var_1_7 = -2; [L29] signed short int var_1_8 = 5; [L30] signed short int var_1_9 = -25; [L31] unsigned char var_1_10 = 200; [L32] unsigned char var_1_11 = 1; [L33] unsigned char var_1_12 = 1; [L34] double var_1_13 = 128.375; [L35] unsigned short int var_1_14 = 0; [L36] float var_1_15 = 0.0; [L37] float var_1_16 = 4.87; [L38] float var_1_17 = 8.875; [L39] signed short int var_1_18 = -128; [L40] unsigned char var_1_19 = 0; [L41] unsigned char var_1_20 = 1; [L42] unsigned char var_1_21 = 0; [L43] unsigned long int var_1_22 = 16; [L44] unsigned long int var_1_23 = 4200661734; [L136] isInitial = 1 [L137] FCALL initially() [L138] COND TRUE 1 [L139] FCALL updateLastVariables() [L140] CALL updateVariables() [L87] var_1_2 = __VERIFIER_nondet_double() [L88] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_6=-16, var_1_7=-2, var_1_8=5, var_1_9=-25] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_6=-16, var_1_7=-2, var_1_8=5, var_1_9=-25] [L89] var_1_3 = __VERIFIER_nondet_double() [L90] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_4=9/2, var_1_5=99/2, var_1_6=-16, var_1_7=-2, var_1_8=5, var_1_9=-25] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_4=9/2, var_1_5=99/2, var_1_6=-16, var_1_7=-2, var_1_8=5, var_1_9=-25] [L91] var_1_4 = __VERIFIER_nondet_double() [L92] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_5=99/2, var_1_6=-16, var_1_7=-2, var_1_8=5, var_1_9=-25] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_5=99/2, var_1_6=-16, var_1_7=-2, var_1_8=5, var_1_9=-25] [L93] var_1_5 = __VERIFIER_nondet_double() [L94] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=-16, var_1_7=-2, var_1_8=5, var_1_9=-25] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=-16, var_1_7=-2, var_1_8=5, var_1_9=-25] [L95] var_1_6 = __VERIFIER_nondet_short() [L96] CALL assume_abort_if_not(var_1_6 >= -16383) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-2, var_1_8=5, var_1_9=-25] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_6 >= -16383) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-2, var_1_8=5, var_1_9=-25] [L97] CALL assume_abort_if_not(var_1_6 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-2, var_1_8=5, var_1_9=-25] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_6 <= 16383) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-2, var_1_8=5, var_1_9=-25] [L98] var_1_7 = __VERIFIER_nondet_short() [L99] CALL assume_abort_if_not(var_1_7 >= -16383) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=5, var_1_9=-25] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_7 >= -16383) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=5, var_1_9=-25] [L100] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=5, var_1_9=-25] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=5, var_1_9=-25] [L101] var_1_8 = __VERIFIER_nondet_short() [L102] CALL assume_abort_if_not(var_1_8 >= -16383) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_8 >= -16383) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L103] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L104] var_1_11 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=200, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L106] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L107] var_1_12 = __VERIFIER_nondet_uchar() [L108] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L109] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L110] var_1_13 = __VERIFIER_nondet_double() [L111] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L112] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L113] var_1_15 = __VERIFIER_nondet_float() [L114] CALL assume_abort_if_not((var_1_15 >= 4611686.018427387900e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not((var_1_15 >= 4611686.018427387900e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L115] var_1_16 = __VERIFIER_nondet_float() [L116] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427387900e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427387900e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L117] var_1_17 = __VERIFIER_nondet_float() [L118] CALL assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854776000e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854776000e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L119] var_1_20 = __VERIFIER_nondet_uchar() [L120] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L121] CALL assume_abort_if_not(var_1_20 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_20 <= 1) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L122] var_1_21 = __VERIFIER_nondet_uchar() [L123] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L124] CALL assume_abort_if_not(var_1_21 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_21 <= 0) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L125] var_1_23 = __VERIFIER_nondet_ulong() [L126] CALL assume_abort_if_not(var_1_23 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=2147483647, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_23 >= 2147483647) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=2147483647, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L127] CALL assume_abort_if_not(var_1_23 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=2147483647, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not(var_1_23 <= 4294967294) VAL [isInitial=1, var_1_10=200, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=2147483647, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=-25] [L140] RET updateVariables() [L141] CALL step() [L48] COND FALSE !(((var_1_2 - var_1_3) * var_1_4) < var_1_5) [L51] var_1_1 = var_1_6 [L53] signed short int stepLocal_0 = var_1_8; [L54] COND TRUE stepLocal_0 >= var_1_7 [L55] var_1_9 = (-256 + var_1_6) [L59] COND TRUE \read(var_1_11) [L60] var_1_10 = ((((0) < (var_1_12)) ? (0) : (var_1_12))) [L66] COND FALSE !(! var_1_11) [L73] COND FALSE !((var_1_17 <= (- var_1_16)) && var_1_11) [L76] signed long int stepLocal_1 = 0; [L77] COND TRUE var_1_9 > stepLocal_1 [L78] var_1_19 = ((var_1_5 >= (- var_1_15)) && (var_1_11 && (var_1_20 && var_1_21))) [L80] COND FALSE !(\read(var_1_19)) [L83] var_1_22 = (((((var_1_23 - var_1_10)) < (var_1_14)) ? ((var_1_23 - var_1_10)) : (var_1_14))) [L141] RET step() [L142] CALL, EXPR property() [L132-L133] return (((((((((var_1_2 - var_1_3) * var_1_4) < var_1_5) ? (var_1_1 == ((signed short int) ((((-8) < ((var_1_6 + ((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))))) ? (-8) : ((var_1_6 + ((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8))))))))) : (var_1_1 == ((signed short int) var_1_6))) && ((var_1_8 >= var_1_7) ? (var_1_9 == ((signed short int) (-256 + var_1_6))) : (var_1_9 == ((signed short int) (var_1_7 + var_1_6))))) && (var_1_11 ? (var_1_10 == ((unsigned char) ((((0) < (var_1_12)) ? (0) : (var_1_12))))) : ((! (var_1_5 > (255.9 / var_1_13))) ? (var_1_10 == ((unsigned char) var_1_12)) : 1))) && ((! var_1_11) ? ((((var_1_15 - var_1_16) - var_1_17) <= var_1_13) ? (var_1_14 == ((unsigned short int) var_1_10)) : (var_1_14 == ((unsigned short int) var_1_10))) : 1)) && (((var_1_17 <= (- var_1_16)) && var_1_11) ? (var_1_18 == ((signed short int) var_1_6)) : 1)) && ((var_1_9 > 0) ? (var_1_19 == ((unsigned char) ((var_1_5 >= (- var_1_15)) && (var_1_11 && (var_1_20 && var_1_21))))) : 1)) && (var_1_19 ? (var_1_22 == ((unsigned long int) (var_1_10 + var_1_14))) : (var_1_22 == ((unsigned long int) (((((var_1_23 - var_1_10)) < (var_1_14)) ? ((var_1_23 - var_1_10)) : (var_1_14)))))) ; [L142] RET, EXPR property() [L142] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=16383, var_1_20=1, var_1_21=0, var_1_22=0, var_1_23=2147483647, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=16127] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=0, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=16383, var_1_20=1, var_1_21=0, var_1_22=0, var_1_23=2147483647, var_1_6=16383, var_1_7=-16379, var_1_8=-16379, var_1_9=16127] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 25, 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=50occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:35:13,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c51934b75642007b7e5ba630000c4f6d9fea2369763db606575965ad8705e431 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:15,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:15,878 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:35:15,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:15,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:15,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:15,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:15,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:15,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:15,934 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:15,935 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:15,935 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:15,936 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:15,937 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:15,938 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:15,938 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:15,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:15,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:15,940 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:35:15,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:35:15,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:15,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:15,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:15,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:15,944 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:35:15,944 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:35:15,945 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:35:15,945 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:35:15,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:15,946 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:15,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:15,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:35:15,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:15,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:15,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:15,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:15,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:15,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:15,950 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:35:15,951 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:35:15,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:15,951 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:15,952 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:15,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:15,952 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_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c51934b75642007b7e5ba630000c4f6d9fea2369763db606575965ad8705e431 [2023-11-23 20:35:16,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:16,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:16,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:16,363 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:16,364 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:16,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i [2023-11-23 20:35:19,590 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:19,871 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:19,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i [2023-11-23 20:35:19,883 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/data/ac3ca4ede/fba5794797ef43bb8ecdbabaf498d0b8/FLAG36503590d [2023-11-23 20:35:19,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/data/ac3ca4ede/fba5794797ef43bb8ecdbabaf498d0b8 [2023-11-23 20:35:19,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:19,900 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:19,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:19,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:19,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:19,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1718af3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19, skipping insertion in model container [2023-11-23 20:35:19,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,945 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:20,107 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_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i[917,930] [2023-11-23 20:35:20,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:20,209 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:20,231 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_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-80.i[917,930] [2023-11-23 20:35:20,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:20,346 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:20,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20 WrapperNode [2023-11-23 20:35:20,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:20,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:20,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:20,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:20,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,410 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2023-11-23 20:35:20,416 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:20,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:20,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:20,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:20,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:20,463 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:20,463 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:20,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:20,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (1/1) ... [2023-11-23 20:35:20,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:20,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:20,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:20,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:20,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:35:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:35:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:35:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:20,713 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:20,718 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:33,882 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:33,937 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:33,938 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:35:33,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:33 BoogieIcfgContainer [2023-11-23 20:35:33,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:33,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:33,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:33,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:33,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:19" (1/3) ... [2023-11-23 20:35:33,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb73dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:33, skipping insertion in model container [2023-11-23 20:35:33,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:20" (2/3) ... [2023-11-23 20:35:33,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb73dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:33, skipping insertion in model container [2023-11-23 20:35:33,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:33" (3/3) ... [2023-11-23 20:35:33,953 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-80.i [2023-11-23 20:35:33,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:33,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:34,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:34,071 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;@3c3efebc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:34,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 38 states have internal predecessors, (51), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 20:35:34,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 20:35:34,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:34,101 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:34,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:34,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:34,110 INFO L85 PathProgramCache]: Analyzing trace with hash -30641210, now seen corresponding path program 1 times [2023-11-23 20:35:34,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:34,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476902175] [2023-11-23 20:35:34,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:34,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:35:34,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:34,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:35:34,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 20:35:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:35,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:35:35,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-23 20:35:35,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:35,634 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:35:35,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476902175] [2023-11-23 20:35:35,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476902175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:35,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:35,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:35:35,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171002056] [2023-11-23 20:35:35,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:35,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:35:35,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:35:35,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:35:35,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:35:35,685 INFO L87 Difference]: Start difference. First operand has 65 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 38 states have internal predecessors, (51), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 20:35:38,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:38,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:38,078 INFO L93 Difference]: Finished difference Result 127 states and 225 transitions. [2023-11-23 20:35:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:35:38,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 155 [2023-11-23 20:35:38,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:38,198 INFO L225 Difference]: With dead ends: 127 [2023-11-23 20:35:38,198 INFO L226 Difference]: Without dead ends: 63 [2023-11-23 20:35:38,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:35:38,207 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:38,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 20:35:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-23 20:35:38,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-23 20:35:38,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 20:35:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 96 transitions. [2023-11-23 20:35:38,270 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 96 transitions. Word has length 155 [2023-11-23 20:35:38,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:38,271 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 96 transitions. [2023-11-23 20:35:38,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 20:35:38,272 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 96 transitions. [2023-11-23 20:35:38,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 20:35:38,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:38,276 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:38,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 20:35:38,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:35:38,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:38,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:38,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1080171796, now seen corresponding path program 1 times [2023-11-23 20:35:38,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:38,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844417735] [2023-11-23 20:35:38,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:38,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:35:38,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:38,485 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:35:38,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 20:35:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:39,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:35:39,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 244 proven. 6 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2023-11-23 20:35:40,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:35:41,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 66 proven. 6 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-11-23 20:35:41,961 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:35:41,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844417735] [2023-11-23 20:35:41,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844417735] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:35:41,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [924644292] [2023-11-23 20:35:41,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:41,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:35:41,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:35:41,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:35:41,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:35:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:44,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:35:44,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 244 proven. 6 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2023-11-23 20:35:45,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:35:45,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 66 proven. 6 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-11-23 20:35:45,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [924644292] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:35:45,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052400896] [2023-11-23 20:35:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:45,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:45,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:45,960 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:35:45,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 20:35:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:46,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:35:46,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:47,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 244 proven. 6 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2023-11-23 20:35:47,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:35:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 66 proven. 6 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-11-23 20:35:48,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052400896] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:35:48,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:35:48,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 8 [2023-11-23 20:35:48,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182423268] [2023-11-23 20:35:48,330 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:35:48,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 20:35:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:35:48,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 20:35:48,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:35:48,335 INFO L87 Difference]: Start difference. First operand 63 states and 96 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 20:35:53,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:55,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:57,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:57,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:57,289 INFO L93 Difference]: Finished difference Result 133 states and 198 transitions. [2023-11-23 20:35:57,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 20:35:57,422 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 155 [2023-11-23 20:35:57,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:57,425 INFO L225 Difference]: With dead ends: 133 [2023-11-23 20:35:57,425 INFO L226 Difference]: Without dead ends: 71 [2023-11-23 20:35:57,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 932 GetRequests, 916 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:35:57,428 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 89 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 95 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:57,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 138 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 148 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2023-11-23 20:35:57,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-23 20:35:57,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2023-11-23 20:35:57,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 20:35:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 98 transitions. [2023-11-23 20:35:57,450 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 98 transitions. Word has length 155 [2023-11-23 20:35:57,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:57,452 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 98 transitions. [2023-11-23 20:35:57,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 20:35:57,452 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 98 transitions. [2023-11-23 20:35:57,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 20:35:57,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:57,456 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:57,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:57,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:57,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:58,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 20:35:58,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:58,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:58,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1080231378, now seen corresponding path program 1 times [2023-11-23 20:35:58,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:58,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804320747] [2023-11-23 20:35:58,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:58,075 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:35:58,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:58,076 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:35:58,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df159772-5993-4ec8-ab8d-f8ed35ae1bbb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 20:35:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:59,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-23 20:35:59,383 INFO L285 TraceCheckSpWp]: Computing forward predicates...