./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5348c32fcdaced44818cc57ad4b99ed1bf67b1606619f98ef124078073d409bd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:44:35,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:44:35,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:44:35,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:44:35,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:44:36,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:44:36,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:44:36,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:44:36,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:44:36,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:44:36,040 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:44:36,041 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:44:36,042 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:44:36,043 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:44:36,044 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:44:36,044 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:44:36,044 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:44:36,045 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:44:36,046 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:44:36,046 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:44:36,046 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:44:36,047 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:44:36,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:44:36,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:44:36,049 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:44:36,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:44:36,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:44:36,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:44:36,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:44:36,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:44:36,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:44:36,053 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:44:36,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:44:36,053 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:44:36,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:44:36,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:44:36,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:36,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:44:36,055 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:44:36,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:44:36,055 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:44:36,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:44:36,056 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:44:36,056 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:44:36,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:44:36,057 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_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5348c32fcdaced44818cc57ad4b99ed1bf67b1606619f98ef124078073d409bd [2023-11-12 00:44:36,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:44:36,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:44:36,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:44:36,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:44:36,412 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:44:36,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i [2023-11-12 00:44:39,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:44:39,711 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:44:39,712 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i [2023-11-12 00:44:39,721 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/data/0e7a76460/6d624c20ef2642f0a5dfb9e76e66fd4c/FLAGcec3be8e8 [2023-11-12 00:44:39,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/data/0e7a76460/6d624c20ef2642f0a5dfb9e76e66fd4c [2023-11-12 00:44:39,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:44:39,741 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:44:39,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:39,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:44:39,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:44:39,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:39" (1/1) ... [2023-11-12 00:44:39,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34cd86a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:39, skipping insertion in model container [2023-11-12 00:44:39,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:39" (1/1) ... [2023-11-12 00:44:39,780 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:44:39,955 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_65af6437-5dfe-42fd-a36b-60cc4785c1c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i[915,928] [2023-11-12 00:44:40,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:40,031 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:44:40,044 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_65af6437-5dfe-42fd-a36b-60cc4785c1c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i[915,928] [2023-11-12 00:44:40,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:40,098 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:44:40,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40 WrapperNode [2023-11-12 00:44:40,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:40,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:40,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:44:40,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:44:40,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,195 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2023-11-12 00:44:40,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:40,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:44:40,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:44:40,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:44:40,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,230 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:44:40,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:44:40,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:44:40,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:44:40,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (1/1) ... [2023-11-12 00:44:40,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:40,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:40,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:44:40,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:44:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:44:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:44:40,325 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:44:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:44:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:44:40,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:44:40,451 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:44:40,453 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:44:40,848 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:44:41,130 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:44:41,131 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:44:41,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:41 BoogieIcfgContainer [2023-11-12 00:44:41,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:44:41,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:44:41,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:44:41,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:44:41,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:44:39" (1/3) ... [2023-11-12 00:44:41,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d00d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:41, skipping insertion in model container [2023-11-12 00:44:41,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:40" (2/3) ... [2023-11-12 00:44:41,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d00d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:41, skipping insertion in model container [2023-11-12 00:44:41,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:41" (3/3) ... [2023-11-12 00:44:41,149 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-80.i [2023-11-12 00:44:41,170 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:44:41,170 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:44:41,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:44:41,241 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;@63e399a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:44:41,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:44:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:44:41,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 00:44:41,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:41,264 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:44:41,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:44:41,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:41,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1876586856, now seen corresponding path program 1 times [2023-11-12 00:44:41,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:41,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502436436] [2023-11-12 00:44:41,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:41,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:44:41,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:44:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:44:42,044 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:44:42,046 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:44:42,047 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:44:42,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:44:42,054 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:44:42,061 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:44:42,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:44:42 BoogieIcfgContainer [2023-11-12 00:44:42,137 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:44:42,138 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:44:42,140 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:44:42,140 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:44:42,140 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:41" (3/4) ... [2023-11-12 00:44:42,143 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:44:42,145 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:44:42,146 INFO L158 Benchmark]: Toolchain (without parser) took 2405.32ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 99.2MB in the beginning and 85.5MB in the end (delta: 13.8MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2023-11-12 00:44:42,147 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory was 90.3MB in the beginning and 90.1MB in the end (delta: 152.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:44:42,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.53ms. Allocated memory is still 144.7MB. Free memory was 98.8MB in the beginning and 85.0MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:44:42,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.41ms. Allocated memory is still 144.7MB. Free memory was 85.0MB in the beginning and 81.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:44:42,153 INFO L158 Benchmark]: Boogie Preprocessor took 46.56ms. Allocated memory is still 144.7MB. Free memory was 81.3MB in the beginning and 79.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:44:42,155 INFO L158 Benchmark]: RCFGBuilder took 890.78ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 79.2MB in the beginning and 142.1MB in the end (delta: -62.9MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-11-12 00:44:42,156 INFO L158 Benchmark]: TraceAbstraction took 999.47ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 86.6MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-12 00:44:42,157 INFO L158 Benchmark]: Witness Printer took 6.92ms. Allocated memory is still 186.6MB. Free memory was 86.6MB in the beginning and 85.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:44:42,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory was 90.3MB in the beginning and 90.1MB in the end (delta: 152.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.53ms. Allocated memory is still 144.7MB. Free memory was 98.8MB in the beginning and 85.0MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.41ms. Allocated memory is still 144.7MB. Free memory was 85.0MB in the beginning and 81.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.56ms. Allocated memory is still 144.7MB. Free memory was 81.3MB in the beginning and 79.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 890.78ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 79.2MB in the beginning and 142.1MB in the end (delta: -62.9MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * TraceAbstraction took 999.47ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 86.6MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Witness Printer took 6.92ms. Allocated memory is still 186.6MB. Free memory was 86.6MB in the beginning and 85.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 68. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 128; [L23] double var_1_2 = 24.25; [L24] double var_1_3 = 128.5; [L25] double var_1_4 = 4.5; [L26] double var_1_5 = 49.5; [L27] signed short int var_1_9 = -25; [L28] unsigned char var_1_10 = 200; [L29] unsigned char var_1_11 = 1; [L30] unsigned char var_1_12 = 1; [L31] double var_1_13 = 128.375; [L32] unsigned short int var_1_14 = 0; [L33] float var_1_15 = 0.0; [L34] float var_1_16 = 4.87; [L35] float var_1_17 = 8.875; [L36] signed short int var_1_18 = -128; [L37] unsigned char var_1_19 = 0; [L38] unsigned char var_1_20 = 1; [L39] unsigned char var_1_21 = 0; [L40] unsigned long int var_1_22 = 16; [L41] unsigned long int var_1_23 = 4200661734; [L42] unsigned char last_1_var_1_10 = 200; [L126] isInitial = 1 [L127] FCALL initially() [L128] COND TRUE 1 [L129] CALL updateLastVariables() [L119] last_1_var_1_10 = var_1_10 [L129] RET updateLastVariables() [L130] CALL updateVariables() [L85] var_1_2 = __VERIFIER_nondet_double() [L86] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L87] var_1_3 = __VERIFIER_nondet_double() [L88] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L89] var_1_4 = __VERIFIER_nondet_double() [L90] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=99/2, var_1_9=-25] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=99/2, var_1_9=-25] [L91] var_1_5 = __VERIFIER_nondet_double() [L92] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L93] var_1_11 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L95] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L96] var_1_12 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L98] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L99] var_1_13 = __VERIFIER_nondet_double() [L100] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L101] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L102] var_1_15 = __VERIFIER_nondet_float() [L103] CALL assume_abort_if_not((var_1_15 >= 4611686.018427387900e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_15 >= 4611686.018427387900e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L104] var_1_16 = __VERIFIER_nondet_float() [L105] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427387900e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427387900e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L106] var_1_17 = __VERIFIER_nondet_float() [L107] CALL assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854776000e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854776000e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L108] var_1_20 = __VERIFIER_nondet_uchar() [L109] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L110] CALL assume_abort_if_not(var_1_20 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_20 <= 1) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L111] var_1_21 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L113] CALL assume_abort_if_not(var_1_21 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_21 <= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L114] var_1_23 = __VERIFIER_nondet_ulong() [L115] CALL assume_abort_if_not(var_1_23 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4294967244, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_23 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4294967244, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L116] CALL assume_abort_if_not(var_1_23 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4294967244, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_23 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=0, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=0, var_1_21=0, var_1_22=16, var_1_23=4294967244, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-25] [L130] RET updateVariables() [L131] CALL step() [L46] signed long int stepLocal_0 = last_1_var_1_10; [L47] COND TRUE stepLocal_0 >= last_1_var_1_10 [L48] var_1_9 = (-256 + last_1_var_1_10) [L52] signed short int stepLocal_1 = var_1_9; [L53] COND FALSE !(stepLocal_1 > 0) [L56] COND FALSE !(\read(var_1_19)) [L59] COND TRUE ! (var_1_5 > (255.9 / var_1_13)) [L60] var_1_10 = var_1_12 [L63] COND TRUE ((var_1_2 - var_1_3) * var_1_4) < var_1_5 [L64] var_1_1 = ((((-8) < ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10)))))) ? (-8) : ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10))))))) [L68] COND FALSE !((var_1_17 <= (- var_1_16)) && var_1_19) [L71] COND FALSE !(\read(var_1_19)) [L74] var_1_22 = (((((var_1_23 - var_1_9)) < (var_1_10)) ? ((var_1_23 - var_1_9)) : (var_1_10))) [L76] COND TRUE ! var_1_19 [L77] COND TRUE ((var_1_15 - var_1_16) - var_1_17) <= var_1_13 [L78] var_1_14 = var_1_18 [L131] RET step() [L132] CALL, EXPR property() [L122-L123] return (((((((((var_1_2 - var_1_3) * var_1_4) < var_1_5) ? (var_1_1 == ((signed short int) ((((-8) < ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10)))))) ? (-8) : ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10))))))))) : (var_1_1 == ((signed short int) var_1_10))) && ((last_1_var_1_10 >= last_1_var_1_10) ? (var_1_9 == ((signed short int) (-256 + last_1_var_1_10))) : (var_1_9 == ((signed short int) (last_1_var_1_10 + last_1_var_1_10))))) && (var_1_19 ? (var_1_10 == ((unsigned char) ((((0) < (var_1_12)) ? (0) : (var_1_12))))) : ((! (var_1_5 > (255.9 / var_1_13))) ? (var_1_10 == ((unsigned char) var_1_12)) : 1))) && ((! var_1_19) ? ((((var_1_15 - var_1_16) - var_1_17) <= var_1_13) ? (var_1_14 == ((unsigned short int) var_1_18)) : (var_1_14 == ((unsigned short int) var_1_18))) : 1)) && (((var_1_17 <= (- var_1_16)) && var_1_19) ? (var_1_18 == ((signed short int) var_1_10)) : 1)) && ((var_1_9 > 0) ? (var_1_19 == ((unsigned char) ((var_1_5 >= (- var_1_15)) && (var_1_11 && (var_1_20 && var_1_21))))) : 1)) && (var_1_19 ? (var_1_22 == ((unsigned long int) (var_1_9 + var_1_10))) : (var_1_22 == ((unsigned long int) (((((var_1_23 - var_1_9)) < (var_1_10)) ? ((var_1_23 - var_1_9)) : (var_1_10)))))) ; [L132] RET, EXPR property() [L132] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=200, var_1_10=60, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=65408, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=-8, var_1_20=0, var_1_21=0, var_1_22=4, var_1_23=4294967244, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-56] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=200, var_1_10=60, var_1_11=1, var_1_12=60, var_1_13=4200661745, var_1_14=65408, var_1_15=4200661739, var_1_16=4200661740, var_1_17=4200661742, var_1_18=-128, var_1_19=0, var_1_1=-8, var_1_20=0, var_1_21=0, var_1_22=4, var_1_23=4294967244, var_1_3=4200661743, var_1_4=4200661741, var_1_5=4200661744, var_1_9=-56] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 19, 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=41occurred 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, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:44:42,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5348c32fcdaced44818cc57ad4b99ed1bf67b1606619f98ef124078073d409bd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:44:44,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:44:44,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:44:44,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:44:44,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:44:44,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:44:44,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:44:44,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:44:44,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:44:44,996 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:44:44,997 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:44:44,997 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:44:44,998 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:44:44,999 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:44:44,999 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:44:44,999 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:44:45,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:44:45,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:44:45,001 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:44:45,001 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:44:45,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:44:45,002 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:44:45,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:44:45,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:44:45,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:44:45,004 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:44:45,004 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:44:45,005 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:44:45,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:44:45,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:44:45,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:44:45,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:44:45,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:44:45,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:45,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:44:45,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:44:45,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:44:45,009 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:44:45,009 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:44:45,010 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:44:45,010 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:44:45,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:44:45,011 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_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5348c32fcdaced44818cc57ad4b99ed1bf67b1606619f98ef124078073d409bd [2023-11-12 00:44:45,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:44:45,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:44:45,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:44:45,395 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:44:45,396 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:44:45,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i [2023-11-12 00:44:48,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:44:48,630 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:44:48,630 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i [2023-11-12 00:44:48,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/data/f2a9a1dbc/5dda2b36d8114d5093d1eba6c58e4778/FLAG0a1edf63c [2023-11-12 00:44:48,654 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/data/f2a9a1dbc/5dda2b36d8114d5093d1eba6c58e4778 [2023-11-12 00:44:48,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:44:48,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:44:48,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:48,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:44:48,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:44:48,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:48" (1/1) ... [2023-11-12 00:44:48,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b040e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:48, skipping insertion in model container [2023-11-12 00:44:48,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:48" (1/1) ... [2023-11-12 00:44:48,703 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:44:48,853 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_65af6437-5dfe-42fd-a36b-60cc4785c1c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i[915,928] [2023-11-12 00:44:48,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:48,934 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:44:48,951 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_65af6437-5dfe-42fd-a36b-60cc4785c1c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-80.i[915,928] [2023-11-12 00:44:49,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:49,030 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:44:49,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49 WrapperNode [2023-11-12 00:44:49,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:49,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:49,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:44:49,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:44:49,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,125 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2023-11-12 00:44:49,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:49,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:44:49,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:44:49,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:44:49,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:44:49,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:44:49,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:44:49,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:44:49,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (1/1) ... [2023-11-12 00:44:49,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:49,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:49,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:44:49,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:44:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:44:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:44:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:44:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:44:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:44:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:44:49,437 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:44:49,439 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:45:02,705 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:45:02,712 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:45:02,713 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:45:02,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:45:02 BoogieIcfgContainer [2023-11-12 00:45:02,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:45:02,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:45:02,727 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:45:02,730 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:45:02,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:44:48" (1/3) ... [2023-11-12 00:45:02,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d0bab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:45:02, skipping insertion in model container [2023-11-12 00:45:02,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:49" (2/3) ... [2023-11-12 00:45:02,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d0bab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:45:02, skipping insertion in model container [2023-11-12 00:45:02,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:45:02" (3/3) ... [2023-11-12 00:45:02,734 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-80.i [2023-11-12 00:45:02,757 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:45:02,758 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:45:02,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:45:02,835 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;@5cd7fcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:45:02,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:45:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:45:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-12 00:45:02,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:02,860 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:45:02,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:45:02,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:02,867 INFO L85 PathProgramCache]: Analyzing trace with hash 984032602, now seen corresponding path program 1 times [2023-11-12 00:45:02,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:45:02,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829474258] [2023-11-12 00:45:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:02,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:45:02,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:45:02,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:45:02,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:45:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:04,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:45:04,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:45:04,565 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-12 00:45:04,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:45:04,566 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:45:04,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829474258] [2023-11-12 00:45:04,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829474258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:04,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:04,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:45:04,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991792604] [2023-11-12 00:45:04,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:04,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:45:04,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:45:04,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:45:04,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:45:04,605 INFO L87 Difference]: Start difference. First operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 00:45:07,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:45:09,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:45:11,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:45:13,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:45:13,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:13,821 INFO L93 Difference]: Finished difference Result 169 states and 299 transitions. [2023-11-12 00:45:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:45:14,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2023-11-12 00:45:14,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:14,079 INFO L225 Difference]: With dead ends: 169 [2023-11-12 00:45:14,080 INFO L226 Difference]: Without dead ends: 111 [2023-11-12 00:45:14,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:45:14,089 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 95 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:14,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 234 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 9.1s Time] [2023-11-12 00:45:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-12 00:45:14,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 59. [2023-11-12 00:45:14,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:45:14,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2023-11-12 00:45:14,158 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 125 [2023-11-12 00:45:14,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:14,160 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2023-11-12 00:45:14,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 00:45:14,161 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2023-11-12 00:45:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-12 00:45:14,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:14,171 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:45:14,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:45:14,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:45:14,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:45:14,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:14,395 INFO L85 PathProgramCache]: Analyzing trace with hash 591005592, now seen corresponding path program 1 times [2023-11-12 00:45:14,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:45:14,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656957634] [2023-11-12 00:45:14,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:14,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:45:14,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:45:14,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:45:14,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 00:45:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:15,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:45:15,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:45:17,581 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-12 00:45:17,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:45:17,582 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:45:17,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656957634] [2023-11-12 00:45:17,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656957634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:17,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:17,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:45:17,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524754522] [2023-11-12 00:45:17,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:17,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:45:17,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:45:17,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:45:17,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:45:17,587 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 00:45:20,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:22,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:22,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:22,854 INFO L93 Difference]: Finished difference Result 169 states and 248 transitions. [2023-11-12 00:45:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:45:23,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2023-11-12 00:45:23,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:23,103 INFO L225 Difference]: With dead ends: 169 [2023-11-12 00:45:23,104 INFO L226 Difference]: Without dead ends: 113 [2023-11-12 00:45:23,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:45:23,106 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 14 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:23,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 157 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2023-11-12 00:45:23,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-12 00:45:23,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2023-11-12 00:45:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.2) internal successors, (84), 70 states have internal predecessors, (84), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-12 00:45:23,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2023-11-12 00:45:23,131 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 125 [2023-11-12 00:45:23,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:23,132 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2023-11-12 00:45:23,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 00:45:23,133 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2023-11-12 00:45:23,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-12 00:45:23,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:23,135 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:45:23,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:45:23,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:45:23,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:45:23,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:23,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1242198040, now seen corresponding path program 1 times [2023-11-12 00:45:23,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:45:23,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487663987] [2023-11-12 00:45:23,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:23,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:45:23,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:45:23,347 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:45:23,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65af6437-5dfe-42fd-a36b-60cc4785c1c4/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 00:45:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:24,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:45:24,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:45:26,956 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-12 00:45:26,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:45:26,957 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:45:26,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487663987] [2023-11-12 00:45:26,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487663987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:26,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:26,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:45:26,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678668982] [2023-11-12 00:45:26,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:26,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:45:26,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:45:26,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:45:26,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:45:26,962 INFO L87 Difference]: Start difference. First operand 111 states and 160 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 00:45:30,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:32,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:35,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:37,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:39,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:42,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []