./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ --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 18ef0dddc7c7969694de0928e4b6cb2e80de650c7da321f655a1a1a02ed063b0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:59:14,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:59:14,319 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:59:14,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:59:14,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:59:14,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:59:14,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:59:14,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:59:14,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:59:14,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:59:14,385 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:59:14,387 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:59:14,388 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:59:14,389 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:59:14,390 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:59:14,391 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:59:14,391 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:59:14,391 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:59:14,392 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:59:14,392 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:59:14,393 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:59:14,394 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:59:14,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:59:14,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:59:14,396 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:59:14,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:59:14,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:59:14,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:59:14,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:59:14,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:59:14,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:59:14,400 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:59:14,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:59:14,401 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:59:14,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:59:14,401 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:59:14,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:14,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:59:14,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:59:14,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:59:14,403 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:59:14,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:59:14,404 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:59:14,404 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:59:14,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:59:14,405 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_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18ef0dddc7c7969694de0928e4b6cb2e80de650c7da321f655a1a1a02ed063b0 [2023-11-19 04:59:14,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:59:14,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:59:14,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:59:14,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:59:14,790 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:59:14,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i [2023-11-19 04:59:17,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:59:18,255 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:59:18,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i [2023-11-19 04:59:18,269 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/data/83bcfa6d6/782bfd30873240f0b9d8b287ba41997b/FLAG87c2f73c1 [2023-11-19 04:59:18,286 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/data/83bcfa6d6/782bfd30873240f0b9d8b287ba41997b [2023-11-19 04:59:18,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:59:18,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:59:18,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:18,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:59:18,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:59:18,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623c5b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18, skipping insertion in model container [2023-11-19 04:59:18,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,342 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:18,522 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_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i[915,928] [2023-11-19 04:59:18,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:18,583 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:59:18,595 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_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i[915,928] [2023-11-19 04:59:18,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:18,669 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:59:18,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18 WrapperNode [2023-11-19 04:59:18,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:18,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:18,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:59:18,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:59:18,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,747 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2023-11-19 04:59:18,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:18,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:59:18,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:59:18,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:59:18,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,778 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:59:18,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:59:18,786 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:59:18,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:59:18,787 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (1/1) ... [2023-11-19 04:59:18,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:18,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:18,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:59:18,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:59:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:59:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:59:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:59:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:59:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:59:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:59:18,979 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:59:18,981 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:59:19,250 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:59:19,398 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:59:19,398 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:59:19,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:19 BoogieIcfgContainer [2023-11-19 04:59:19,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:59:19,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:59:19,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:59:19,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:59:19,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:59:18" (1/3) ... [2023-11-19 04:59:19,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38981e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:19, skipping insertion in model container [2023-11-19 04:59:19,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:18" (2/3) ... [2023-11-19 04:59:19,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38981e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:19, skipping insertion in model container [2023-11-19 04:59:19,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:19" (3/3) ... [2023-11-19 04:59:19,413 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-72.i [2023-11-19 04:59:19,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:59:19,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:59:19,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:59:19,496 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;@6dfc4edc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:59:19,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:59:19,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 04:59:19,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 04:59:19,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:19,514 INFO L195 NwaCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:19,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:19,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:19,520 INFO L85 PathProgramCache]: Analyzing trace with hash -223776681, now seen corresponding path program 1 times [2023-11-19 04:59:19,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:59:19,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822558255] [2023-11-19 04:59:19,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:19,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:59:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:59:20,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:59:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:59:20,272 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:59:20,275 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:59:20,276 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:59:20,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:59:20,299 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:59:20,313 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:59:20,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:59:20 BoogieIcfgContainer [2023-11-19 04:59:20,405 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:59:20,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:59:20,406 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:59:20,406 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:59:20,407 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:19" (3/4) ... [2023-11-19 04:59:20,409 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:59:20,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:59:20,412 INFO L158 Benchmark]: Toolchain (without parser) took 2116.94ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 76.3MB in the beginning and 126.3MB in the end (delta: -49.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:59:20,413 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory was 103.2MB in the beginning and 103.2MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:59:20,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.99ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 75.8MB in the beginning and 138.7MB in the end (delta: -62.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:59:20,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.45ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 136.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:59:20,415 INFO L158 Benchmark]: Boogie Preprocessor took 36.56ms. Allocated memory is still 167.8MB. Free memory was 136.6MB in the beginning and 134.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:59:20,416 INFO L158 Benchmark]: RCFGBuilder took 618.27ms. Allocated memory is still 167.8MB. Free memory was 134.5MB in the beginning and 110.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 04:59:20,417 INFO L158 Benchmark]: TraceAbstraction took 998.16ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 126.3MB in the end (delta: -16.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 04:59:20,418 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 167.8MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:59:20,422 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory was 103.2MB in the beginning and 103.2MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.99ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 75.8MB in the beginning and 138.7MB in the end (delta: -62.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.45ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 136.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.56ms. Allocated memory is still 167.8MB. Free memory was 136.6MB in the beginning and 134.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.27ms. Allocated memory is still 167.8MB. Free memory was 134.5MB in the beginning and 110.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 998.16ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 126.3MB in the end (delta: -16.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 167.8MB. Free memory is still 126.3MB. 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 48, overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryArithmeticDOUBLEoperation at line 50. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] double var_1_2 = 128.875; [L24] double var_1_3 = 24.5; [L25] double var_1_4 = 8.2; [L26] double var_1_5 = 10.05; [L27] unsigned char var_1_6 = 0; [L28] unsigned char var_1_7 = 0; [L29] unsigned char var_1_8 = 1; [L30] unsigned char var_1_9 = 0; [L31] unsigned long int var_1_10 = 2; [L32] signed char var_1_11 = -16; [L33] signed char var_1_12 = -2; [L34] signed char var_1_13 = -10; [L35] signed char var_1_14 = 4; [L36] double var_1_15 = 256.4; [L37] float var_1_16 = 0.25; [L38] double var_1_17 = 100000000000.2; [L39] double var_1_18 = 50.5; [L40] double var_1_19 = 9.5; [L106] isInitial = 1 [L107] FCALL initially() [L108] COND TRUE 1 [L109] FCALL updateLastVariables() [L110] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_double() [L61] 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, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=49/2, var_1_4=41/5, var_1_5=201/20, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L61] 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, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=49/2, var_1_4=41/5, var_1_5=201/20, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L62] var_1_3 = __VERIFIER_nondet_double() [L63] 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, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=41/5, var_1_5=201/20, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L63] 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, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=41/5, var_1_5=201/20, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L64] var_1_4 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=201/20, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=201/20, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L66] var_1_5 = __VERIFIER_nondet_double() [L67] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L68] var_1_6 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L70] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L71] var_1_7 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L73] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L74] var_1_8 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L76] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L77] var_1_9 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L79] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-2, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L80] var_1_12 = __VERIFIER_nondet_char() [L81] CALL assume_abort_if_not(var_1_12 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_12 >= -63) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L82] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=-10, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L83] var_1_13 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_13 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_13 >= -63) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L85] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L86] var_1_14 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L88] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=1/4, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L89] var_1_16 = __VERIFIER_nondet_float() [L90] CALL assume_abort_if_not((var_1_16 >= -922337.2036854776000e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854776000e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not((var_1_16 >= -922337.2036854776000e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854776000e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L91] CALL assume_abort_if_not(var_1_16 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 != 0.0F) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=500000000001/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L92] var_1_17 = __VERIFIER_nondet_double() [L93] CALL assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=1282/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=1282/5, var_1_18=101/2, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L94] var_1_18 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=1282/5, var_1_18=100000000010, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=1282/5, var_1_18=100000000010, var_1_19=19/2, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L96] var_1_19 = __VERIFIER_nondet_double() [L97] CALL assume_abort_if_not((var_1_19 >= 0.0F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=1282/5, var_1_18=100000000010, var_1_19=100000000008, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not((var_1_19 >= 0.0F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=-16, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=1282/5, var_1_18=100000000010, var_1_19=100000000008, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L110] RET updateVariables() [L111] CALL step() [L44] COND FALSE !(\read(var_1_9)) [L47] var_1_11 = (((((var_1_12 + var_1_13)) < ((10 - var_1_14))) ? ((var_1_12 + var_1_13)) : ((10 - var_1_14)))) [L48] COND TRUE (var_1_2 + (var_1_3 / var_1_16)) == var_1_5 [L49] COND TRUE var_1_3 >= var_1_4 [L50] var_1_15 = (var_1_17 - (((((var_1_18 + var_1_19)) < (9.9999999999995E12)) ? ((var_1_18 + var_1_19)) : (9.9999999999995E12)))) [L55] COND FALSE !(var_1_15 < (((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15))) * var_1_15)) [L111] RET step() [L112] CALL, EXPR property() [L102-L103] return ((((var_1_15 < (((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15))) * var_1_15)) ? (var_1_1 == ((unsigned char) (var_1_6 && ((var_1_7 || var_1_8) && var_1_9)))) : 1) && (var_1_9 ? (var_1_10 == ((unsigned long int) 2u)) : 1)) && (var_1_11 == ((signed char) (((((var_1_12 + var_1_13)) < ((10 - var_1_14))) ? ((var_1_12 + var_1_13)) : ((10 - var_1_14))))))) && (((var_1_2 + (var_1_3 / var_1_16)) == var_1_5) ? ((var_1_3 >= var_1_4) ? (var_1_15 == ((double) (var_1_17 - (((((var_1_18 + var_1_19)) < (9.9999999999995E12)) ? ((var_1_18 + var_1_19)) : (9.9999999999995E12)))))) : (var_1_15 == ((double) var_1_17))) : 1) ; [L112] RET, EXPR property() [L112] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=6, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=1282/5, var_1_18=100000000010, var_1_19=100000000008, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=6, var_1_12=-57, var_1_13=63, var_1_14=4, var_1_15=1282/5, var_1_16=100000000006, var_1_17=1282/5, var_1_18=100000000010, var_1_19=100000000008, var_1_1=1, var_1_3=100000000007, var_1_4=100000000005, var_1_5=100000000009, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 23, 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=47occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 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 [2023-11-19 04:59:20,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ --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 18ef0dddc7c7969694de0928e4b6cb2e80de650c7da321f655a1a1a02ed063b0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:59:23,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:59:23,504 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:59:23,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:59:23,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:59:23,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:59:23,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:59:23,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:59:23,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:59:23,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:59:23,576 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:59:23,577 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:59:23,577 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:59:23,579 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:59:23,580 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:59:23,580 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:59:23,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:59:23,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:59:23,583 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:59:23,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:59:23,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:59:23,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:59:23,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:59:23,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:59:23,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:59:23,587 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:59:23,587 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:59:23,588 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:59:23,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:59:23,589 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:59:23,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:59:23,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:59:23,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:59:23,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:23,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:59:23,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:59:23,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:59:23,593 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:59:23,593 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:59:23,594 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:59:23,595 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:59:23,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:59:23,595 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_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18ef0dddc7c7969694de0928e4b6cb2e80de650c7da321f655a1a1a02ed063b0 [2023-11-19 04:59:24,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:59:24,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:59:24,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:59:24,068 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:59:24,068 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:59:24,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i [2023-11-19 04:59:27,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:59:27,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:59:27,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i [2023-11-19 04:59:27,536 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/data/f7a7f70d3/8ea3d16b79134a92beef371d6bee7104/FLAG15ff6b282 [2023-11-19 04:59:27,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/data/f7a7f70d3/8ea3d16b79134a92beef371d6bee7104 [2023-11-19 04:59:27,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:59:27,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:59:27,557 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:27,557 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:59:27,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:59:27,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:27" (1/1) ... [2023-11-19 04:59:27,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e21768a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:27, skipping insertion in model container [2023-11-19 04:59:27,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:27" (1/1) ... [2023-11-19 04:59:27,614 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:27,833 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_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i[915,928] [2023-11-19 04:59:27,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:27,945 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:59:27,962 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_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-72.i[915,928] [2023-11-19 04:59:28,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:28,045 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:59:28,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28 WrapperNode [2023-11-19 04:59:28,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:28,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:28,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:59:28,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:59:28,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,135 INFO L138 Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2023-11-19 04:59:28,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:28,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:59:28,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:59:28,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:59:28,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:59:28,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:59:28,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:59:28,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:59:28,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (1/1) ... [2023-11-19 04:59:28,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:28,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:28,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:59:28,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:59:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:59:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:59:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:59:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:59:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:59:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:59:28,449 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:59:28,451 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:59:37,303 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:59:37,319 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:59:37,323 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:59:37,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:37 BoogieIcfgContainer [2023-11-19 04:59:37,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:59:37,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:59:37,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:59:37,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:59:37,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:59:27" (1/3) ... [2023-11-19 04:59:37,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40da0a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:37, skipping insertion in model container [2023-11-19 04:59:37,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:28" (2/3) ... [2023-11-19 04:59:37,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40da0a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:37, skipping insertion in model container [2023-11-19 04:59:37,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:37" (3/3) ... [2023-11-19 04:59:37,345 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-72.i [2023-11-19 04:59:37,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:59:37,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:59:37,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:59:37,442 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;@77a31fb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:59:37,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:59:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 36 states have (on average 1.25) internal successors, (45), 37 states have internal predecessors, (45), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 04:59:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 04:59:37,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:37,470 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:37,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:37,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:37,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1442101837, now seen corresponding path program 1 times [2023-11-19 04:59:37,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:59:37,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150496116] [2023-11-19 04:59:37,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:37,490 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 [2023-11-19 04:59:37,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:59:37,494 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:59:37,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:59:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:39,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:59:39,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:59:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2023-11-19 04:59:39,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:59:39,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:59:39,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150496116] [2023-11-19 04:59:39,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150496116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:59:39,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:59:39,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:59:39,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879286819] [2023-11-19 04:59:39,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:59:39,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:59:39,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:59:39,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:59:39,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:59:39,310 INFO L87 Difference]: Start difference. First operand has 62 states, 36 states have (on average 1.25) internal successors, (45), 37 states have internal predecessors, (45), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-19 04:59:39,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:59:39,359 INFO L93 Difference]: Finished difference Result 117 states and 199 transitions. [2023-11-19 04:59:39,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:59:39,363 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 143 [2023-11-19 04:59:39,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:59:39,374 INFO L225 Difference]: With dead ends: 117 [2023-11-19 04:59:39,374 INFO L226 Difference]: Without dead ends: 58 [2023-11-19 04:59:39,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:59:39,381 INFO L413 NwaCegarLoop]: 84 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, 84 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 [2023-11-19 04:59:39,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:59:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-19 04:59:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-19 04:59:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 33 states have internal predecessors, (38), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 04:59:39,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2023-11-19 04:59:39,428 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 143 [2023-11-19 04:59:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:59:39,429 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2023-11-19 04:59:39,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-19 04:59:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2023-11-19 04:59:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 04:59:39,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:39,434 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:39,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 04:59:39,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:59:39,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:39,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1696472987, now seen corresponding path program 1 times [2023-11-19 04:59:39,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:59:39,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531342036] [2023-11-19 04:59:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:39,641 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 [2023-11-19 04:59:39,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:59:39,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:59:39,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:59:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:41,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:59:41,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:59:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 528 proven. 33 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-19 04:59:43,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:59:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 33 proven. 33 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-19 04:59:44,272 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:59:44,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531342036] [2023-11-19 04:59:44,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531342036] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:59:44,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1726439047] [2023-11-19 04:59:44,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:44,273 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:59:44,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:59:44,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:59:44,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 04:59:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:47,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:59:47,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:59:49,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 528 proven. 33 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-19 04:59:49,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:59:50,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 33 proven. 33 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-19 04:59:50,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1726439047] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:59:50,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660403826] [2023-11-19 04:59:50,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:50,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:59:50,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:50,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:59:50,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 04:59:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:51,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:59:51,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:59:52,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 528 proven. 33 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-19 04:59:52,301 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:59:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 33 proven. 33 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-19 04:59:53,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660403826] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:59:53,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 04:59:53,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 7 [2023-11-19 04:59:53,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899916553] [2023-11-19 04:59:53,230 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 04:59:53,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:59:53,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:59:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:59:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:59:53,237 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-11-19 04:59:57,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:59:59,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:00:01,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:00:01,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:01,887 INFO L93 Difference]: Finished difference Result 121 states and 172 transitions. [2023-11-19 05:00:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 05:00:02,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 143 [2023-11-19 05:00:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:02,003 INFO L225 Difference]: With dead ends: 121 [2023-11-19 05:00:02,003 INFO L226 Difference]: Without dead ends: 66 [2023-11-19 05:00:02,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 844 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:00:02,006 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 65 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 23 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:02,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 118 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 129 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2023-11-19 05:00:02,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-19 05:00:02,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2023-11-19 05:00:02,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 36 states have internal predecessors, (40), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 05:00:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 86 transitions. [2023-11-19 05:00:02,026 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 86 transitions. Word has length 143 [2023-11-19 05:00:02,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:02,027 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 86 transitions. [2023-11-19 05:00:02,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-11-19 05:00:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 86 transitions. [2023-11-19 05:00:02,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 05:00:02,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:02,031 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:02,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:02,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-19 05:00:02,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:02,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:00:02,645 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:00:02,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:02,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1789147683, now seen corresponding path program 1 times [2023-11-19 05:00:02,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:00:02,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442268754] [2023-11-19 05:00:02,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:02,647 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 [2023-11-19 05:00:02,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:00:02,671 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:00:02,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b71e5-5437-473a-bdcd-fb97ae48dd67/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 05:00:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:04,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 05:00:04,046 INFO L285 TraceCheckSpWp]: Computing forward predicates...