./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2 --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 8482a3a56b598e6ea2c53cd178cdc00e135d36f82401302349d04562aa766551 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:22:48,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:22:48,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:22:48,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:22:48,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:22:48,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:22:48,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:22:48,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:22:48,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:22:48,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:22:48,427 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:22:48,427 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:22:48,428 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:22:48,428 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:22:48,429 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:22:48,429 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:22:48,430 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:22:48,430 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:22:48,431 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:22:48,431 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:22:48,432 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:22:48,432 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:22:48,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:22:48,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:22:48,434 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:22:48,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:22:48,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:22:48,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:22:48,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:22:48,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:22:48,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:22:48,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:22:48,437 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:22:48,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:22:48,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:22:48,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:22:48,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:22:48,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:22:48,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:22:48,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:22:48,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:22:48,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:22:48,441 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:22:48,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:22:48,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:22:48,443 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:22:48,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:22:48,443 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_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8482a3a56b598e6ea2c53cd178cdc00e135d36f82401302349d04562aa766551 [2024-11-02 11:22:48,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:22:48,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:22:48,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:22:48,823 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:22:48,828 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:22:48,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i Unable to find full path for "g++" [2024-11-02 11:22:51,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:22:51,335 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:22:51,341 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i [2024-11-02 11:22:51,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/data/82fec6533/beaf04f99b2d448293da5defd8ea24b5/FLAGbc58a2d70 [2024-11-02 11:22:51,389 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/data/82fec6533/beaf04f99b2d448293da5defd8ea24b5 [2024-11-02 11:22:51,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:22:51,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:22:51,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:22:51,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:22:51,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:22:51,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:51,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6163e178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51, skipping insertion in model container [2024-11-02 11:22:51,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:51,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:22:51,672 WARN L251 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_053d1128-a7d0-4752-83bd-b2feec1a259d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i[915,928] [2024-11-02 11:22:51,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:22:51,828 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:22:51,847 WARN L251 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_053d1128-a7d0-4752-83bd-b2feec1a259d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i[915,928] [2024-11-02 11:22:51,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:22:51,930 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:22:51,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51 WrapperNode [2024-11-02 11:22:51,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:22:51,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:22:51,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:22:51,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:22:51,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:51,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,006 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 149 [2024-11-02 11:22:52,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:22:52,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:22:52,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:22:52,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:22:52,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,042 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:22:52,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:22:52,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:22:52,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:22:52,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (1/1) ... [2024-11-02 11:22:52,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:22:52,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:22:52,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:22:52,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:22:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:22:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:22:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:22:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:22:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:22:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:22:52,238 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:22:52,240 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:22:52,904 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-02 11:22:52,904 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:22:53,207 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:22:53,207 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:22:53,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:22:53 BoogieIcfgContainer [2024-11-02 11:22:53,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:22:53,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:22:53,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:22:53,218 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:22:53,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:22:51" (1/3) ... [2024-11-02 11:22:53,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5549006b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:22:53, skipping insertion in model container [2024-11-02 11:22:53,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:51" (2/3) ... [2024-11-02 11:22:53,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5549006b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:22:53, skipping insertion in model container [2024-11-02 11:22:53,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:22:53" (3/3) ... [2024-11-02 11:22:53,224 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-95.i [2024-11-02 11:22:53,246 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:22:53,247 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:22:53,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:22:53,343 INFO L333 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, 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;@13f6c268, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:22:53,343 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:22:53,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-02 11:22:53,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-02 11:22:53,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:22:53,357 INFO L215 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:22:53,358 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:22:53,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:22:53,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1998490200, now seen corresponding path program 1 times [2024-11-02 11:22:53,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:22:53,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805819814] [2024-11-02 11:22:53,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:22:53,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:22:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 11:22:53,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190815081] [2024-11-02 11:22:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:22:53,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:22:53,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:22:53,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:22:53,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:22:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:22:54,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 11:22:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:22:54,323 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 11:22:54,326 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 11:22:54,328 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 11:22:54,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 11:22:54,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-02 11:22:54,534 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 11:22:54,671 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:22:54,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:22:54 BoogieIcfgContainer [2024-11-02 11:22:54,675 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:22:54,675 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:22:54,676 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:22:54,677 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:22:54,677 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:22:53" (3/4) ... [2024-11-02 11:22:54,683 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 11:22:54,685 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:22:54,686 INFO L158 Benchmark]: Toolchain (without parser) took 3290.01ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 97.9MB in the beginning and 147.9MB in the end (delta: -50.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:22:54,688 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:22:54,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.17ms. Allocated memory is still 140.5MB. Free memory was 97.9MB in the beginning and 82.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 11:22:54,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.42ms. Allocated memory is still 140.5MB. Free memory was 82.3MB in the beginning and 79.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 11:22:54,690 INFO L158 Benchmark]: Boogie Preprocessor took 42.00ms. Allocated memory is still 140.5MB. Free memory was 79.0MB in the beginning and 77.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:22:54,691 INFO L158 Benchmark]: RCFGBuilder took 1158.81ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 77.2MB in the beginning and 114.9MB in the end (delta: -37.6MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-11-02 11:22:54,693 INFO L158 Benchmark]: TraceAbstraction took 1462.58ms. Allocated memory is still 184.5MB. Free memory was 113.8MB in the beginning and 148.7MB in the end (delta: -34.9MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-02 11:22:54,694 INFO L158 Benchmark]: Witness Printer took 9.39ms. Allocated memory is still 184.5MB. Free memory was 148.7MB in the beginning and 147.9MB in the end (delta: 755.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:22:54,700 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.17ms. Allocated memory is still 140.5MB. Free memory was 97.9MB in the beginning and 82.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.42ms. Allocated memory is still 140.5MB. Free memory was 82.3MB in the beginning and 79.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.00ms. Allocated memory is still 140.5MB. Free memory was 79.0MB in the beginning and 77.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1158.81ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 77.2MB in the beginning and 114.9MB in the end (delta: -37.6MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1462.58ms. Allocated memory is still 184.5MB. Free memory was 113.8MB in the beginning and 148.7MB in the end (delta: -34.9MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Witness Printer took 9.39ms. Allocated memory is still 184.5MB. Free memory was 148.7MB in the beginning and 147.9MB in the end (delta: 755.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 67, overapproximation of someBinaryFLOATComparisonOperation at line 45, overapproximation of bitwiseOr at line 44. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 32; [L23] double var_1_2 = 32.25; [L24] double var_1_3 = 16.5; [L25] unsigned char var_1_4 = 10; [L26] unsigned char var_1_5 = 100; [L27] unsigned char var_1_6 = 1; [L28] signed char var_1_7 = -5; [L29] unsigned char var_1_8 = 0; [L30] signed char var_1_9 = -10; [L31] signed short int var_1_10 = 64; [L32] unsigned short int var_1_11 = 0; [L33] float var_1_12 = 64.75; [L34] double var_1_13 = 5.4; [L35] float var_1_14 = 5.625; [L36] unsigned long int var_1_15 = 32; [L37] unsigned short int last_1_var_1_11 = 0; [L38] float last_1_var_1_12 = 64.75; [L39] unsigned long int last_1_var_1_15 = 32; [L120] isInitial = 1 [L121] FCALL initially() [L122] COND TRUE 1 [L123] CALL updateLastVariables() [L111] last_1_var_1_11 = var_1_11 [L112] last_1_var_1_12 = var_1_12 [L113] last_1_var_1_15 = var_1_15 [L123] RET updateLastVariables() [L124] CALL updateVariables() [L85] var_1_2 = __VERIFIER_nondet_double() [L86] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=33/2, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=33/2, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L87] var_1_3 = __VERIFIER_nondet_double() [L88] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L89] var_1_4 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L91] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L92] var_1_5 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_5 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_5 >= 63) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L94] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L95] var_1_6 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_7=-5, var_1_8=0, var_1_9=-10] [L97] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-10] [L98] var_1_8 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_9=-10] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_9=-10] [L100] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-10] [L101] var_1_9 = __VERIFIER_nondet_char() [L102] CALL assume_abort_if_not(var_1_9 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_9 >= -63) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L103] CALL assume_abort_if_not(var_1_9 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_9 <= 63) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L104] var_1_13 = __VERIFIER_nondet_double() [L105] 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, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L20] COND FALSE !(!cond) [L105] 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, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L106] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L107] var_1_14 = __VERIFIER_nondet_float() [L108] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_15=32, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=-5, var_1_8=0, var_1_9=-63] [L124] RET updateVariables() [L125] CALL step() [L43] unsigned long int stepLocal_1 = var_1_6 - last_1_var_1_15; [L44] EXPR last_1_var_1_11 ^ last_1_var_1_15 [L44] COND FALSE !(stepLocal_1 < ((last_1_var_1_11 ^ last_1_var_1_15) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))))) [L49] COND FALSE !((var_1_5 <= var_1_4) && var_1_8) [L56] COND TRUE (-8 * var_1_11) < var_1_4 [L57] var_1_7 = 1 [L62] COND TRUE 128 >= last_1_var_1_15 [L63] var_1_15 = (var_1_6 + (var_1_4 + var_1_11)) [L67] COND FALSE !(var_1_2 != (var_1_3 / ((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) [L70] COND FALSE !((10.8 + var_1_12) <= (- var_1_12)) [L73] unsigned char stepLocal_0 = var_1_4; [L74] COND FALSE !(-4 >= stepLocal_0) [L81] var_1_10 = var_1_4 [L125] RET step() [L126] CALL, EXPR property() [L116] EXPR (((((10.8 + var_1_12) <= (- var_1_12)) ? (var_1_1 == ((unsigned char) (((((1) < (var_1_4)) ? (1) : (var_1_4))) + (var_1_5 - var_1_6)))) : 1) && (((var_1_5 <= var_1_4) && var_1_8) ? (var_1_8 ? (var_1_7 == ((signed char) (var_1_6 + ((((5) < (var_1_9)) ? (5) : (var_1_9)))))) : (var_1_7 == ((signed char) ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9)))))) : (((-8 * var_1_11) < var_1_4) ? (var_1_7 == ((signed char) 1)) : (var_1_7 == ((signed char) var_1_9))))) && ((-4 >= var_1_4) ? ((var_1_12 == var_1_12) ? (var_1_10 == ((signed short int) (var_1_7 + var_1_6))) : (var_1_10 == ((signed short int) var_1_5))) : (var_1_10 == ((signed short int) var_1_4)))) && (((var_1_6 - last_1_var_1_15) < ((last_1_var_1_11 ^ last_1_var_1_15) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))))) ? ((last_1_var_1_12 == last_1_var_1_12) ? (var_1_11 == ((unsigned short int) last_1_var_1_15)) : 1) : 1) [L116-L117] return (((((((10.8 + var_1_12) <= (- var_1_12)) ? (var_1_1 == ((unsigned char) (((((1) < (var_1_4)) ? (1) : (var_1_4))) + (var_1_5 - var_1_6)))) : 1) && (((var_1_5 <= var_1_4) && var_1_8) ? (var_1_8 ? (var_1_7 == ((signed char) (var_1_6 + ((((5) < (var_1_9)) ? (5) : (var_1_9)))))) : (var_1_7 == ((signed char) ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9)))))) : (((-8 * var_1_11) < var_1_4) ? (var_1_7 == ((signed char) 1)) : (var_1_7 == ((signed char) var_1_9))))) && ((-4 >= var_1_4) ? ((var_1_12 == var_1_12) ? (var_1_10 == ((signed short int) (var_1_7 + var_1_6))) : (var_1_10 == ((signed short int) var_1_5))) : (var_1_10 == ((signed short int) var_1_4)))) && (((var_1_6 - last_1_var_1_15) < ((last_1_var_1_11 ^ last_1_var_1_15) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))))) ? ((last_1_var_1_12 == last_1_var_1_12) ? (var_1_11 == ((unsigned short int) last_1_var_1_15)) : 1) : 1)) && ((var_1_2 != (var_1_3 / ((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? (var_1_12 == ((float) var_1_14)) : 1)) && ((128 >= last_1_var_1_15) ? (var_1_15 == ((unsigned long int) (var_1_6 + (var_1_4 + var_1_11)))) : (var_1_15 == ((unsigned long int) var_1_7))) ; [L126] RET, EXPR property() [L126] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=127, var_1_11=0, var_1_12=259/4, var_1_14=259/4, var_1_15=158, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=1, var_1_8=0, var_1_9=-63] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=127, var_1_11=0, var_1_12=259/4, var_1_14=259/4, var_1_15=158, var_1_1=32, var_1_4=-129, var_1_5=-961, var_1_6=-737, var_1_7=1, var_1_8=0, var_1_9=-63] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 2 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 [2024-11-02 11:22:54,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/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_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2 --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 8482a3a56b598e6ea2c53cd178cdc00e135d36f82401302349d04562aa766551 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:22:57,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:22:57,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 11:22:57,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:22:57,406 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:22:57,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:22:57,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:22:57,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:22:57,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:22:57,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:22:57,448 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:22:57,448 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:22:57,449 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:22:57,449 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:22:57,449 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:22:57,450 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:22:57,454 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:22:57,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:22:57,455 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:22:57,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:22:57,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:22:57,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:22:57,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:22:57,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:22:57,456 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 11:22:57,456 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 11:22:57,457 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:22:57,457 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 11:22:57,457 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:22:57,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:22:57,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:22:57,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:22:57,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 11:22:57,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:22:57,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:22:57,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:22:57,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:22:57,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:22:57,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:22:57,462 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 11:22:57,463 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 11:22:57,463 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:22:57,463 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:22:57,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:22:57,464 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_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8482a3a56b598e6ea2c53cd178cdc00e135d36f82401302349d04562aa766551 [2024-11-02 11:22:57,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:22:57,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:22:57,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:22:57,938 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:22:57,939 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:22:57,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i Unable to find full path for "g++" [2024-11-02 11:23:00,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:23:00,541 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:23:00,542 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i [2024-11-02 11:23:00,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/data/117092adf/37bc15ec964b4b649e99db3060d5750c/FLAG0738cc239 [2024-11-02 11:23:00,871 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/data/117092adf/37bc15ec964b4b649e99db3060d5750c [2024-11-02 11:23:00,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:23:00,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:23:00,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:00,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:23:00,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:23:00,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:00" (1/1) ... [2024-11-02 11:23:00,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef5aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:00, skipping insertion in model container [2024-11-02 11:23:00,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:00" (1/1) ... [2024-11-02 11:23:00,921 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:23:01,132 WARN L251 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_053d1128-a7d0-4752-83bd-b2feec1a259d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i[915,928] [2024-11-02 11:23:01,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:01,227 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:23:01,245 WARN L251 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_053d1128-a7d0-4752-83bd-b2feec1a259d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-95.i[915,928] [2024-11-02 11:23:01,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:01,337 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:23:01,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01 WrapperNode [2024-11-02 11:23:01,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:01,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:01,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:23:01,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:23:01,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,408 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2024-11-02 11:23:01,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:01,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:23:01,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:23:01,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:23:01,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:23:01,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:23:01,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:23:01,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:23:01,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (1/1) ... [2024-11-02 11:23:01,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:01,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:01,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:23:01,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:23:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:23:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 11:23:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:23:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:23:01,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:23:01,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:23:01,711 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:23:01,715 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:23:09,540 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-02 11:23:09,540 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:23:09,557 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:23:09,558 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:23:09,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:09 BoogieIcfgContainer [2024-11-02 11:23:09,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:23:09,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:23:09,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:23:09,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:23:09,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:23:00" (1/3) ... [2024-11-02 11:23:09,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cee1475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:09, skipping insertion in model container [2024-11-02 11:23:09,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:01" (2/3) ... [2024-11-02 11:23:09,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cee1475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:09, skipping insertion in model container [2024-11-02 11:23:09,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:09" (3/3) ... [2024-11-02 11:23:09,568 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-95.i [2024-11-02 11:23:09,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:23:09,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:23:09,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:23:09,664 INFO L333 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, 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;@58447d27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:23:09,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:23:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-02 11:23:09,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-02 11:23:09,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:09,682 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:09,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:09,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:09,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1733124500, now seen corresponding path program 1 times [2024-11-02 11:23:09,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:23:09,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704214743] [2024-11-02 11:23:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:09,724 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 [2024-11-02 11:23:09,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:23:09,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:23:09,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:23:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:10,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 11:23:10,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-02 11:23:10,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:23:10,943 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:23:10,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704214743] [2024-11-02 11:23:10,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704214743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:10,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:10,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:10,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367371313] [2024-11-02 11:23:10,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:10,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:23:10,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:23:10,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:23:10,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:23:11,000 INFO L87 Difference]: Start difference. First operand has 54 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-02 11:23:11,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:11,053 INFO L93 Difference]: Finished difference Result 100 states and 169 transitions. [2024-11-02 11:23:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:23:11,057 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2024-11-02 11:23:11,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:11,068 INFO L225 Difference]: With dead ends: 100 [2024-11-02 11:23:11,068 INFO L226 Difference]: Without dead ends: 49 [2024-11-02 11:23:11,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:23:11,081 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:11,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:23:11,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-02 11:23:11,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-02 11:23:11,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-02 11:23:11,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2024-11-02 11:23:11,151 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 101 [2024-11-02 11:23:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:11,152 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2024-11-02 11:23:11,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-02 11:23:11,153 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2024-11-02 11:23:11,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-02 11:23:11,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:11,159 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:11,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:23:11,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:23:11,361 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:11,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:11,362 INFO L85 PathProgramCache]: Analyzing trace with hash -614349018, now seen corresponding path program 1 times [2024-11-02 11:23:11,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:23:11,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979436325] [2024-11-02 11:23:11,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:11,364 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 [2024-11-02 11:23:11,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:23:11,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:23:11,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053d1128-a7d0-4752-83bd-b2feec1a259d/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:23:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:12,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 11:23:12,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-02 11:23:16,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:23:16,426 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:23:16,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979436325] [2024-11-02 11:23:16,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979436325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:16,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:16,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:16,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138394559] [2024-11-02 11:23:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:16,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:23:16,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:23:16,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:23:16,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:23:16,431 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 11:23:18,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:20,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:22,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:26,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []