./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0daba001bb4159e329ea4e02bf43fad28551c83f8164fe6d87ea605497512373 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:23,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:23,363 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:10:23,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:23,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:23,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:23,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:23,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:23,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:23,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:23,407 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:23,407 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:23,408 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:23,409 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:23,409 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:23,410 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:23,411 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:23,411 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:23,412 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:23,413 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:23,413 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:23,414 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:23,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:23,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:23,416 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:23,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:23,417 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:23,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:23,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:23,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:23,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:23,421 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:23,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:23,422 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:23,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:23,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:23,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:23,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:23,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:23,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:23,424 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:23,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:23,424 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:23,424 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:23,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:23,425 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_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0daba001bb4159e329ea4e02bf43fad28551c83f8164fe6d87ea605497512373 [2023-11-12 00:10:23,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:23,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:23,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:23,810 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:23,810 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:23,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-12 00:10:27,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:28,035 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:28,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-12 00:10:28,049 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/data/893ec57df/cd75062b71e04ed5a584cffc787b26a2/FLAGd26336cf1 [2023-11-12 00:10:28,070 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/data/893ec57df/cd75062b71e04ed5a584cffc787b26a2 [2023-11-12 00:10:28,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:28,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:28,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:28,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:28,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:28,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7383a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28, skipping insertion in model container [2023-11-12 00:10:28,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,132 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:28,396 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_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i[915,928] [2023-11-12 00:10:28,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:28,529 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:28,551 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_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i[915,928] [2023-11-12 00:10:28,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:28,634 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:28,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28 WrapperNode [2023-11-12 00:10:28,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:28,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:28,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:28,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:28,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,722 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2023-11-12 00:10:28,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:28,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:28,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:28,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:28,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:28,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:28,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:28,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:28,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (1/1) ... [2023-11-12 00:10:28,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:28,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:28,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:28,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:10:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:10:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:28,959 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:28,961 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:29,240 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:29,532 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:29,532 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:10:29,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:29 BoogieIcfgContainer [2023-11-12 00:10:29,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:29,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:29,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:29,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:29,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:28" (1/3) ... [2023-11-12 00:10:29,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a56043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:29, skipping insertion in model container [2023-11-12 00:10:29,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:28" (2/3) ... [2023-11-12 00:10:29,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a56043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:29, skipping insertion in model container [2023-11-12 00:10:29,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:29" (3/3) ... [2023-11-12 00:10:29,553 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-12 00:10:29,575 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:29,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:10:29,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:29,656 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;@50d117be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:29,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:10:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-12 00:10:29,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-12 00:10:29,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:29,678 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:29,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:29,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:29,689 INFO L85 PathProgramCache]: Analyzing trace with hash -331320646, now seen corresponding path program 1 times [2023-11-12 00:10:29,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:29,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208044727] [2023-11-12 00:10:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:29,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:10:30,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:10:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:10:30,407 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:10:30,410 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:10:30,411 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:10:30,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:10:30,419 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:10:30,424 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:10:30,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:10:30 BoogieIcfgContainer [2023-11-12 00:10:30,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:10:30,538 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:10:30,538 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:10:30,538 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:10:30,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:29" (3/4) ... [2023-11-12 00:10:30,541 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:10:30,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:10:30,544 INFO L158 Benchmark]: Toolchain (without parser) took 2467.68ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 118.9MB in the beginning and 115.6MB in the end (delta: 3.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-12 00:10:30,545 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:30,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.71ms. Allocated memory is still 148.9MB. Free memory was 118.7MB in the beginning and 106.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:10:30,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.33ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 104.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:30,547 INFO L158 Benchmark]: Boogie Preprocessor took 51.33ms. Allocated memory is still 148.9MB. Free memory was 104.2MB in the beginning and 102.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:30,548 INFO L158 Benchmark]: RCFGBuilder took 760.72ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 102.9MB in the beginning and 149.2MB in the end (delta: -46.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-12 00:10:30,548 INFO L158 Benchmark]: TraceAbstraction took 994.92ms. Allocated memory is still 180.4MB. Free memory was 148.2MB in the beginning and 115.6MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-12 00:10:30,549 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 180.4MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:30,553 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 115.3MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.71ms. Allocated memory is still 148.9MB. Free memory was 118.7MB in the beginning and 106.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.33ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 104.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.33ms. Allocated memory is still 148.9MB. Free memory was 104.2MB in the beginning and 102.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 760.72ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 102.9MB in the beginning and 149.2MB in the end (delta: -46.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 994.92ms. Allocated memory is still 180.4MB. Free memory was 148.2MB in the beginning and 115.6MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 180.4MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of bitwiseOr at line 52, overapproximation of someBinaryArithmeticFLOAToperation at line 57. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_6 = 1; [L25] signed short int var_1_7 = 32; [L26] signed short int var_1_8 = 20113; [L27] signed short int var_1_9 = 100; [L28] signed char var_1_10 = 100; [L29] signed char var_1_11 = -1; [L30] signed char var_1_12 = 16; [L31] float var_1_13 = 1.2; [L32] float var_1_14 = 3.6; [L33] float var_1_15 = 5.5; [L34] signed char last_1_var_1_10 = 100; [L97] isInitial = 1 [L98] FCALL initially() [L99] int k_loop; [L100] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L100] COND TRUE k_loop < 1 [L101] CALL updateLastVariables() [L90] last_1_var_1_10 = var_1_10 [L101] RET updateLastVariables() [L102] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L65] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L66] var_1_6 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L68] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L69] var_1_7 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_7 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_7 >= -1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=20113, var_1_9=100] [L71] CALL assume_abort_if_not(var_1_7 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 <= 32766) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=20113, var_1_9=100] [L72] var_1_8 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_8 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=100] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_8 >= 16383) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=100] [L74] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=100] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=100] [L75] var_1_9 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L78] var_1_11 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L81] var_1_12 = __VERIFIER_nondet_char() [L82] CALL assume_abort_if_not(var_1_12 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_12 >= -31) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L84] var_1_14 = __VERIFIER_nondet_float() [L85] CALL assume_abort_if_not((var_1_14 >= 0.0F && 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_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=6/5, var_1_14=20119, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not((var_1_14 >= 0.0F && 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_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=6/5, var_1_14=20119, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L86] var_1_15 = __VERIFIER_nondet_float() [L87] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=6/5, var_1_14=20119, var_1_15=20118, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=6/5, var_1_14=20119, var_1_15=20118, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L102] RET updateVariables() [L103] CALL step() [L38] COND TRUE \read(var_1_2) [L39] COND FALSE !(last_1_var_1_10 > last_1_var_1_10) [L46] var_1_1 = 8 [L49] COND FALSE !(var_1_1 == var_1_7) [L52] EXPR 100 | var_1_1 [L52] COND FALSE !((100 | var_1_1) >= var_1_7) [L56] COND TRUE \read(var_1_6) [L57] var_1_13 = ((((16.3f) < ((((((var_1_14 - 1.875f)) > (63.5f)) ? ((var_1_14 - 1.875f)) : (63.5f))))) ? (16.3f) : ((((((var_1_14 - 1.875f)) > (63.5f)) ? ((var_1_14 - 1.875f)) : (63.5f)))))) [L103] RET step() [L104] CALL, EXPR property() [L93] EXPR (var_1_2 ? ((last_1_var_1_10 > last_1_var_1_10) ? (var_1_6 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) last_1_var_1_10))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_1 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : (((100 | var_1_1) >= var_1_7) ? (var_1_10 == ((signed char) var_1_11)) : 1)) [L93] EXPR (var_1_1 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : (((100 | var_1_1) >= var_1_7) ? (var_1_10 == ((signed char) var_1_11)) : 1) [L93] EXPR 100 | var_1_1 [L93] EXPR (var_1_1 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : (((100 | var_1_1) >= var_1_7) ? (var_1_10 == ((signed char) var_1_11)) : 1) [L93] EXPR (var_1_2 ? ((last_1_var_1_10 > last_1_var_1_10) ? (var_1_6 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) last_1_var_1_10))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_1 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : (((100 | var_1_1) >= var_1_7) ? (var_1_10 == ((signed char) var_1_11)) : 1)) [L93-L94] return ((var_1_2 ? ((last_1_var_1_10 > last_1_var_1_10) ? (var_1_6 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) last_1_var_1_10))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_1 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : (((100 | var_1_1) >= var_1_7) ? (var_1_10 == ((signed char) var_1_11)) : 1))) && (var_1_6 ? (var_1_13 == ((float) ((((16.3f) < ((((((var_1_14 - 1.875f)) > (63.5f)) ? ((var_1_14 - 1.875f)) : (63.5f))))) ? (16.3f) : ((((((var_1_14 - 1.875f)) > (63.5f)) ? ((var_1_14 - 1.875f)) : (63.5f)))))))) : (var_1_13 == ((float) (var_1_14 - var_1_15)))) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=163/10, var_1_14=20119, var_1_15=20118, var_1_1=8, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-3, var_1_12=32, var_1_13=163/10, var_1_14=20119, var_1_15=20118, var_1_1=8, var_1_2=1, var_1_6=1, var_1_7=101, var_1_8=16383, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 16, 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=34occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:10:30,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0daba001bb4159e329ea4e02bf43fad28551c83f8164fe6d87ea605497512373 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:33,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:33,536 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:10:33,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:33,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:33,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:33,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:33,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:33,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:33,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:33,594 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:33,595 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:33,596 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:33,602 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:33,603 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:33,603 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:33,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:33,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:33,607 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:33,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:33,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:33,609 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:33,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:33,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:33,610 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:10:33,611 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:10:33,612 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:10:33,612 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:33,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:33,613 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:33,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:33,616 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:10:33,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:33,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:33,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:33,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:33,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:33,619 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:10:33,619 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:10:33,621 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:33,621 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:33,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:33,622 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_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0daba001bb4159e329ea4e02bf43fad28551c83f8164fe6d87ea605497512373 [2023-11-12 00:10:34,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:34,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:34,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:34,240 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:34,242 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:34,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-12 00:10:37,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:38,253 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:38,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-12 00:10:38,264 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/data/6876ae9ac/f1b4207b4dfd45a59e4527f1403f3268/FLAG02ff5e566 [2023-11-12 00:10:38,281 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/data/6876ae9ac/f1b4207b4dfd45a59e4527f1403f3268 [2023-11-12 00:10:38,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:38,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:38,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:38,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:38,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:38,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3968c831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38, skipping insertion in model container [2023-11-12 00:10:38,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,335 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:38,522 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_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i[915,928] [2023-11-12 00:10:38,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:38,595 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:38,620 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_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i[915,928] [2023-11-12 00:10:38,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:38,706 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:38,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38 WrapperNode [2023-11-12 00:10:38,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:38,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:38,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:38,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:38,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,803 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2023-11-12 00:10:38,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:38,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:38,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:38,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:38,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:38,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:38,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:38,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:38,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (1/1) ... [2023-11-12 00:10:38,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:38,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:38,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:38,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:39,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:39,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:10:39,011 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:10:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:10:39,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:39,115 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:39,117 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:39,808 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:39,816 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:39,817 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:10:39,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:39 BoogieIcfgContainer [2023-11-12 00:10:39,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:39,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:39,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:39,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:39,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:38" (1/3) ... [2023-11-12 00:10:39,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cfc349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:39, skipping insertion in model container [2023-11-12 00:10:39,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:38" (2/3) ... [2023-11-12 00:10:39,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cfc349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:39, skipping insertion in model container [2023-11-12 00:10:39,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:39" (3/3) ... [2023-11-12 00:10:39,832 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-12 00:10:39,858 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:39,859 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:10:39,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:39,930 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;@6d949766, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:39,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:10:39,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-12 00:10:39,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 00:10:39,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:39,957 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:39,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:39,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:39,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1959647612, now seen corresponding path program 1 times [2023-11-12 00:10:39,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:10:39,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053254971] [2023-11-12 00:10:39,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:39,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:10:39,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:10:40,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:10:40,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:10:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:40,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:10:40,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:40,530 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-12 00:10:40,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:10:40,536 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:10:40,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053254971] [2023-11-12 00:10:40,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053254971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:40,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:40,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:10:40,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732274253] [2023-11-12 00:10:40,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:40,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:10:40,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:10:40,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:10:40,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:10:40,600 INFO L87 Difference]: Start difference. First operand has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-12 00:10:40,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:40,649 INFO L93 Difference]: Finished difference Result 98 states and 161 transitions. [2023-11-12 00:10:40,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:10:40,652 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2023-11-12 00:10:40,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:40,662 INFO L225 Difference]: With dead ends: 98 [2023-11-12 00:10:40,663 INFO L226 Difference]: Without dead ends: 46 [2023-11-12 00:10:40,668 INFO L412 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 [2023-11-12 00:10:40,672 INFO L413 NwaCegarLoop]: 69 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, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:40,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:10:40,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-12 00:10:40,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-12 00:10:40,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-12 00:10:40,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2023-11-12 00:10:40,733 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 101 [2023-11-12 00:10:40,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:40,734 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2023-11-12 00:10:40,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-12 00:10:40,736 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2023-11-12 00:10:40,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 00:10:40,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:40,742 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:40,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:40,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:10:40,959 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:40,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:40,960 INFO L85 PathProgramCache]: Analyzing trace with hash 12653632, now seen corresponding path program 1 times [2023-11-12 00:10:40,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:10:40,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402316084] [2023-11-12 00:10:40,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:40,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:10:40,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:10:40,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:10:40,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6d03c97-a7ed-47a2-a8e2-895b8391d0bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 00:10:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:41,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 00:10:41,335 INFO L285 TraceCheckSpWp]: Computing forward predicates...