./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.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_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:23:47,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:23:47,738 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:23:47,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:23:47,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:23:47,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:23:47,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:23:47,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:23:47,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:23:47,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:23:47,799 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:23:47,800 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:23:47,801 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:23:47,803 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:23:47,803 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:23:47,804 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:23:47,804 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:23:47,805 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:23:47,805 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:23:47,806 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:23:47,808 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:23:47,808 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:23:47,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:23:47,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:23:47,811 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:23:47,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:23:47,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:23:47,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:23:47,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:23:47,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:23:47,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:23:47,815 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:23:47,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:23:47,816 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:23:47,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:23:47,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:23:47,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:23:47,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:23:47,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:23:47,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:23:47,818 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:23:47,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:23:47,818 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:23:47,819 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:23:47,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:23:47,820 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_43536ce9-110d-40f3-a1b2-f482f6652a9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd [2023-11-19 05:23:48,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:23:48,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:23:48,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:23:48,273 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:23:48,274 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:23:48,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2023-11-19 05:23:51,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:23:51,951 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:23:51,952 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2023-11-19 05:23:51,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/data/83b825d91/cdbea183fe5e448baad98a824da526e2/FLAGe5440d89a [2023-11-19 05:23:51,977 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/data/83b825d91/cdbea183fe5e448baad98a824da526e2 [2023-11-19 05:23:51,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:23:51,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:23:51,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:23:51,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:23:51,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:23:51,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:23:51" (1/1) ... [2023-11-19 05:23:51,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4d61b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:51, skipping insertion in model container [2023-11-19 05:23:51,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:23:51" (1/1) ... [2023-11-19 05:23:52,023 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:23:52,221 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_43536ce9-110d-40f3-a1b2-f482f6652a9d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2023-11-19 05:23:52,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:23:52,293 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:23:52,309 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_43536ce9-110d-40f3-a1b2-f482f6652a9d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2023-11-19 05:23:52,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:23:52,377 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:23:52,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52 WrapperNode [2023-11-19 05:23:52,378 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:23:52,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:23:52,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:23:52,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:23:52,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,454 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2023-11-19 05:23:52,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:23:52,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:23:52,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:23:52,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:23:52,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,471 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,471 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:23:52,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:23:52,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:23:52,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:23:52,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (1/1) ... [2023-11-19 05:23:52,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:23:52,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:23:52,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:23:52,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:23:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:23:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:23:52,616 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:23:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:23:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:23:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:23:52,767 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:23:52,772 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:23:53,201 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:23:53,508 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:23:53,508 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:23:53,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:23:53 BoogieIcfgContainer [2023-11-19 05:23:53,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:23:53,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:23:53,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:23:53,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:23:53,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:23:51" (1/3) ... [2023-11-19 05:23:53,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef0f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:23:53, skipping insertion in model container [2023-11-19 05:23:53,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:52" (2/3) ... [2023-11-19 05:23:53,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef0f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:23:53, skipping insertion in model container [2023-11-19 05:23:53,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:23:53" (3/3) ... [2023-11-19 05:23:53,533 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-70.i [2023-11-19 05:23:53,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:23:53,558 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:23:53,641 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:23:53,651 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;@e93020f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:23:53,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:23:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:23:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 05:23:53,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:23:53,675 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:23:53,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:23:53,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:23:53,682 INFO L85 PathProgramCache]: Analyzing trace with hash 226768748, now seen corresponding path program 1 times [2023-11-19 05:23:53,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:23:53,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613226684] [2023-11-19 05:23:53,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:23:53,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:23:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:23:54,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:23:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:23:54,385 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:23:54,388 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:23:54,389 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:23:54,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:23:54,397 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:23:54,404 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:23:54,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:23:54 BoogieIcfgContainer [2023-11-19 05:23:54,502 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:23:54,504 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:23:54,504 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:23:54,504 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:23:54,505 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:23:53" (3/4) ... [2023-11-19 05:23:54,508 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:23:54,509 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:23:54,511 INFO L158 Benchmark]: Toolchain (without parser) took 2528.76ms. Allocated memory was 151.0MB in the beginning and 216.0MB in the end (delta: 65.0MB). Free memory was 103.3MB in the beginning and 145.0MB in the end (delta: -41.7MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2023-11-19 05:23:54,512 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 151.0MB. Free memory was 121.4MB in the beginning and 121.3MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:23:54,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.77ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 90.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:23:54,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.64ms. Allocated memory is still 151.0MB. Free memory was 90.4MB in the beginning and 87.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:23:54,515 INFO L158 Benchmark]: Boogie Preprocessor took 42.02ms. Allocated memory is still 151.0MB. Free memory was 87.5MB in the beginning and 85.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:23:54,516 INFO L158 Benchmark]: RCFGBuilder took 1015.29ms. Allocated memory was 151.0MB in the beginning and 216.0MB in the end (delta: 65.0MB). Free memory was 85.8MB in the beginning and 175.4MB in the end (delta: -89.6MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2023-11-19 05:23:54,517 INFO L158 Benchmark]: TraceAbstraction took 982.68ms. Allocated memory is still 216.0MB. Free memory was 174.4MB in the beginning and 145.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 05:23:54,517 INFO L158 Benchmark]: Witness Printer took 5.93ms. Allocated memory is still 216.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:23:54,522 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 151.0MB. Free memory was 121.4MB in the beginning and 121.3MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.77ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 90.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.64ms. Allocated memory is still 151.0MB. Free memory was 90.4MB in the beginning and 87.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.02ms. Allocated memory is still 151.0MB. Free memory was 87.5MB in the beginning and 85.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1015.29ms. Allocated memory was 151.0MB in the beginning and 216.0MB in the end (delta: 65.0MB). Free memory was 85.8MB in the beginning and 175.4MB in the end (delta: -89.6MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * TraceAbstraction took 982.68ms. Allocated memory is still 216.0MB. Free memory was 174.4MB in the beginning and 145.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 5.93ms. Allocated memory is still 216.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of shiftLeft at line 48, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_4 = 19138; [L25] signed char var_1_6 = 25; [L26] signed long int var_1_7 = -50; [L27] double var_1_8 = 8.3; [L28] double var_1_9 = 255.6; [L29] double var_1_10 = 10000000.375; [L30] double var_1_11 = 0.0; [L31] double var_1_12 = 255.375; [L32] unsigned char var_1_13 = 50; [L33] unsigned char var_1_14 = 2; [L34] signed char var_1_15 = 1; [L35] signed char var_1_16 = 5; [L89] isInitial = 1 [L90] FCALL initially() [L91] COND TRUE 1 [L92] FCALL updateLastVariables() [L93] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L64] var_1_4 = __VERIFIER_nondet_ushort() [L65] CALL assume_abort_if_not(var_1_4 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 >= 16383) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L66] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L67] var_1_9 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L69] var_1_10 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10000006, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L71] var_1_11 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L73] var_1_12 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L75] var_1_14 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L77] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L78] var_1_16 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L80] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L93] RET updateVariables() [L94] CALL step() [L39] var_1_13 = var_1_14 [L40] var_1_15 = var_1_16 [L41] COND FALSE !(\read(var_1_2)) [L44] COND FALSE !(var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) [L47] unsigned short int stepLocal_0 = var_1_4; [L48] EXPR var_1_13 << var_1_13 [L48] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) [L48] EXPR var_1_13 << var_1_13 [L48] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) [L48] COND TRUE stepLocal_0 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)))) [L49] var_1_7 = (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))) [L53] unsigned char stepLocal_1 = var_1_13; [L54] COND FALSE !(var_1_13 < stepLocal_1) [L57] var_1_8 = ((var_1_11 - var_1_12) - var_1_9) [L94] RET step() [L95] CALL, EXPR property() [L85] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4))))) [L85] EXPR var_1_13 << var_1_13 [L85] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) [L85] EXPR var_1_13 << var_1_13 [L85] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) [L85] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4))))) [L85-L86] return (((((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4)))))) && ((var_1_13 < var_1_13) ? (var_1_8 == ((double) (var_1_9 - var_1_10))) : (var_1_8 == ((double) ((var_1_11 - var_1_12) - var_1_9))))) && (var_1_13 == ((unsigned char) var_1_14))) && (var_1_15 == ((signed char) var_1_16)) ; [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=254, var_1_14=254, var_1_15=-127, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=0, var_1_9=10000008] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=254, var_1_14=254, var_1_15=-127, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=0, var_1_9=10000008] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 12, 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=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 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 05:23:54,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:23:57,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:23:57,780 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:23:57,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:23:57,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:23:57,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:23:57,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:23:57,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:23:57,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:23:57,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:23:57,862 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:23:57,862 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:23:57,863 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:23:57,865 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:23:57,865 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:23:57,866 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:23:57,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:23:57,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:23:57,868 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:23:57,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:23:57,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:23:57,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:23:57,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:23:57,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:23:57,872 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:23:57,873 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:23:57,873 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:23:57,874 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:23:57,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:23:57,875 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:23:57,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:23:57,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:23:57,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:23:57,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:23:57,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:23:57,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:23:57,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:23:57,879 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:23:57,879 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:23:57,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:23:57,881 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:23:57,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:23:57,882 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_43536ce9-110d-40f3-a1b2-f482f6652a9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd [2023-11-19 05:23:58,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:23:58,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:23:58,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:23:58,447 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:23:58,448 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:23:58,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2023-11-19 05:24:01,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:02,287 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:02,288 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2023-11-19 05:24:02,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/data/6f9074a3e/72e56e77352542b29fe12f74134e6032/FLAG4ed8d49f2 [2023-11-19 05:24:02,320 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/data/6f9074a3e/72e56e77352542b29fe12f74134e6032 [2023-11-19 05:24:02,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:02,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:02,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:02,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:02,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:02,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f459547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02, skipping insertion in model container [2023-11-19 05:24:02,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,389 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:02,572 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_43536ce9-110d-40f3-a1b2-f482f6652a9d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2023-11-19 05:24:02,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:02,666 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:02,683 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_43536ce9-110d-40f3-a1b2-f482f6652a9d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2023-11-19 05:24:02,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:02,769 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:02,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02 WrapperNode [2023-11-19 05:24:02,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:02,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:02,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:02,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:02,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,874 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2023-11-19 05:24:02,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:02,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:02,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:02,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:02,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:02,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:02,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:02,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:02,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (1/1) ... [2023-11-19 05:24:02,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:03,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:03,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:03,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:24:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:24:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:24:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:03,257 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:03,261 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:04,680 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:04,712 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:04,712 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:24:04,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:04 BoogieIcfgContainer [2023-11-19 05:24:04,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:04,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:04,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:04,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:04,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:02" (1/3) ... [2023-11-19 05:24:04,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fb3b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:04, skipping insertion in model container [2023-11-19 05:24:04,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:02" (2/3) ... [2023-11-19 05:24:04,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fb3b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:04, skipping insertion in model container [2023-11-19 05:24:04,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:04" (3/3) ... [2023-11-19 05:24:04,730 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-70.i [2023-11-19 05:24:04,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:04,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:04,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:04,859 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;@27d6b26f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:04,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:04,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:24:04,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 05:24:04,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:04,888 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:04,891 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:04,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:04,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1062525254, now seen corresponding path program 1 times [2023-11-19 05:24:04,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:04,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684210414] [2023-11-19 05:24:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:04,923 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 05:24:04,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:04,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:04,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:05,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:24:05,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:05,533 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-19 05:24:05,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:05,535 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:05,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684210414] [2023-11-19 05:24:05,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684210414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:05,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:05,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:24:05,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54024152] [2023-11-19 05:24:05,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:05,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:24:05,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:05,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:24:05,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:24:05,597 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:24:05,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:05,625 INFO L93 Difference]: Finished difference Result 83 states and 132 transitions. [2023-11-19 05:24:05,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:24:05,627 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2023-11-19 05:24:05,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:05,635 INFO L225 Difference]: With dead ends: 83 [2023-11-19 05:24:05,635 INFO L226 Difference]: Without dead ends: 41 [2023-11-19 05:24:05,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 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 05:24:05,643 INFO L413 NwaCegarLoop]: 56 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, 56 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 05:24:05,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:24:05,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-19 05:24:05,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-19 05:24:05,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:24:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2023-11-19 05:24:05,690 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 83 [2023-11-19 05:24:05,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:05,691 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2023-11-19 05:24:05,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:24:05,692 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2023-11-19 05:24:05,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 05:24:05,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:05,696 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:05,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:05,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:05,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:05,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:05,908 INFO L85 PathProgramCache]: Analyzing trace with hash 960529726, now seen corresponding path program 1 times [2023-11-19 05:24:05,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:05,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095528178] [2023-11-19 05:24:05,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:05,909 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 05:24:05,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:05,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:05,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:06,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:24:06,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:06,456 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 05:24:06,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:06,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:06,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095528178] [2023-11-19 05:24:06,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095528178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:06,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:06,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:06,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762367681] [2023-11-19 05:24:06,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:06,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:06,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:06,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:06,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:06,471 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 05:24:08,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:08,128 INFO L93 Difference]: Finished difference Result 79 states and 109 transitions. [2023-11-19 05:24:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:08,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2023-11-19 05:24:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:08,145 INFO L225 Difference]: With dead ends: 79 [2023-11-19 05:24:08,145 INFO L226 Difference]: Without dead ends: 41 [2023-11-19 05:24:08,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:08,148 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:08,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 98 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 05:24:08,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-19 05:24:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-19 05:24:08,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:24:08,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2023-11-19 05:24:08,159 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 83 [2023-11-19 05:24:08,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:08,161 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2023-11-19 05:24:08,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 05:24:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2023-11-19 05:24:08,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 05:24:08,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:08,164 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:08,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:08,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:08,380 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:08,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash 962376768, now seen corresponding path program 1 times [2023-11-19 05:24:08,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:08,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296706888] [2023-11-19 05:24:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:08,381 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 05:24:08,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:08,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:08,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 (4)] Waiting until timeout for monitored process [2023-11-19 05:24:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:08,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:24:08,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-19 05:24:09,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:24:10,342 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:10,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296706888] [2023-11-19 05:24:10,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296706888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:24:10,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1393807171] [2023-11-19 05:24:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:10,343 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:24:10,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:24:10,352 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:24:10,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 05:24:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:11,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 05:24:11,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-19 05:24:12,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:24:12,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1393807171] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:24:12,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262700527] [2023-11-19 05:24:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:12,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:24:12,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:12,903 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:24:12,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 05:24:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:13,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:24:13,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-19 05:24:13,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:24:14,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262700527] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:24:14,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:24:14,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-19 05:24:14,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455427022] [2023-11-19 05:24:14,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:24:14,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:24:14,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:14,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:24:14,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:24:14,166 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 05:24:17,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:24:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:17,819 INFO L93 Difference]: Finished difference Result 111 states and 140 transitions. [2023-11-19 05:24:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 05:24:17,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 83 [2023-11-19 05:24:17,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:17,824 INFO L225 Difference]: With dead ends: 111 [2023-11-19 05:24:17,825 INFO L226 Difference]: Without dead ends: 73 [2023-11-19 05:24:17,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2023-11-19 05:24:17,828 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 70 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:17,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 123 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-19 05:24:17,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-19 05:24:17,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 66. [2023-11-19 05:24:17,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.127659574468085) internal successors, (53), 48 states have internal predecessors, (53), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:24:17,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2023-11-19 05:24:17,856 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 83 [2023-11-19 05:24:17,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:17,858 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2023-11-19 05:24:17,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 05:24:17,858 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2023-11-19 05:24:17,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 05:24:17,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:17,861 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:17,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:18,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:18,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:18,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 05:24:18,471 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:18,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:18,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1642435138, now seen corresponding path program 1 times [2023-11-19 05:24:18,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:18,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593247755] [2023-11-19 05:24:18,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:18,474 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 05:24:18,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:18,476 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 05:24:18,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43536ce9-110d-40f3-a1b2-f482f6652a9d/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 (7)] Waiting until timeout for monitored process [2023-11-19 05:24:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:18,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-19 05:24:18,884 INFO L285 TraceCheckSpWp]: Computing forward predicates...