./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.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_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 b5fd059d5a759507a96afa6a0d4588ef4f04a7933448ee3dd4bfcf9210da23be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:42:56,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:42:56,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:42:56,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:42:56,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:42:56,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:42:56,278 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:42:56,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:42:56,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:42:56,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:42:56,285 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:42:56,286 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:42:56,286 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:42:56,295 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:42:56,296 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:42:56,297 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:42:56,298 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:42:56,298 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:42:56,299 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:42:56,300 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:42:56,300 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:42:56,301 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:42:56,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:42:56,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:42:56,303 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:42:56,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:42:56,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:42:56,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:42:56,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:42:56,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:42:56,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:42:56,308 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:42:56,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:42:56,308 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:42:56,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:42:56,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:42:56,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:56,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:42:56,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:42:56,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:42:56,311 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:42:56,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:42:56,311 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:42:56,312 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:42:56,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:42:56,313 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_3f557b3f-1123-421b-8c88-4c8711ef8b99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5fd059d5a759507a96afa6a0d4588ef4f04a7933448ee3dd4bfcf9210da23be [2023-11-12 00:42:56,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:42:56,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:42:56,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:42:56,732 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:42:56,733 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:42:56,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i [2023-11-12 00:43:00,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:43:00,427 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:43:00,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i [2023-11-12 00:43:00,441 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/data/08a80fb69/4e1273a48535414d98df7d2e8944fc2d/FLAG827f4b74c [2023-11-12 00:43:00,458 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/data/08a80fb69/4e1273a48535414d98df7d2e8944fc2d [2023-11-12 00:43:00,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:43:00,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:43:00,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:00,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:43:00,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:43:00,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1020bdc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00, skipping insertion in model container [2023-11-12 00:43:00,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,532 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:43:00,712 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_3f557b3f-1123-421b-8c88-4c8711ef8b99/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i[919,932] [2023-11-12 00:43:00,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:00,786 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:43:00,797 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_3f557b3f-1123-421b-8c88-4c8711ef8b99/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i[919,932] [2023-11-12 00:43:00,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:00,851 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:43:00,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00 WrapperNode [2023-11-12 00:43:00,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:00,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:00,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:43:00,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:43:00,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,915 INFO L138 Inliner]: procedures = 30, calls = 38, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 198 [2023-11-12 00:43:00,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:00,916 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:43:00,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:43:00,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:43:00,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:43:00,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:43:00,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:43:00,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:43:00,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (1/1) ... [2023-11-12 00:43:00,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:00,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:00,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:43:01,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:43:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:43:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:43:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:43:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:43:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:43:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:43:01,121 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:43:01,123 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:43:01,560 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:43:02,140 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:43:02,140 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:43:02,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:02 BoogieIcfgContainer [2023-11-12 00:43:02,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:43:02,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:43:02,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:43:02,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:43:02,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:43:00" (1/3) ... [2023-11-12 00:43:02,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7c52ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:02, skipping insertion in model container [2023-11-12 00:43:02,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:00" (2/3) ... [2023-11-12 00:43:02,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7c52ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:02, skipping insertion in model container [2023-11-12 00:43:02,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:02" (3/3) ... [2023-11-12 00:43:02,160 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_functionizing_file-9.i [2023-11-12 00:43:02,181 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:43:02,181 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:43:02,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:43:02,261 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;@5db3fbad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:43:02,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:43:02,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:43:02,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-12 00:43:02,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:43:02,284 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:02,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:43:02,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:43:02,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1820086399, now seen corresponding path program 1 times [2023-11-12 00:43:02,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:43:02,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012536832] [2023-11-12 00:43:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:02,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:43:02,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:43:02,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185047524] [2023-11-12 00:43:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:02,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:43:02,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:02,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:43:02,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:43:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:43:03,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:43:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:43:03,224 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:43:03,227 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:43:03,229 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:43:03,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:43:03,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:43:03,443 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:43:03,446 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:43:03,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:43:03 BoogieIcfgContainer [2023-11-12 00:43:03,558 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:43:03,559 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:43:03,559 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:43:03,560 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:43:03,560 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:02" (3/4) ... [2023-11-12 00:43:03,564 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:43:03,565 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:43:03,566 INFO L158 Benchmark]: Toolchain (without parser) took 3101.22ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 114.5MB in the end (delta: 7.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-11-12 00:43:03,567 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 113.2MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:43:03,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.48ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 108.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:43:03,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.22ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 105.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:43:03,569 INFO L158 Benchmark]: Boogie Preprocessor took 40.38ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 103.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:43:03,570 INFO L158 Benchmark]: RCFGBuilder took 1186.81ms. Allocated memory is still 167.8MB. Free memory was 103.8MB in the beginning and 88.0MB in the end (delta: 15.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-12 00:43:03,570 INFO L158 Benchmark]: TraceAbstraction took 1410.54ms. Allocated memory is still 167.8MB. Free memory was 86.8MB in the beginning and 114.5MB in the end (delta: -27.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:43:03,571 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 167.8MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:43:03,574 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 113.2MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.48ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 108.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.22ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 105.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.38ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 103.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1186.81ms. Allocated memory is still 167.8MB. Free memory was 103.8MB in the beginning and 88.0MB in the end (delta: 15.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1410.54ms. Allocated memory is still 167.8MB. Free memory was 86.8MB in the beginning and 114.5MB in the end (delta: -27.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 167.8MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 74, overapproximation of shiftRight at line 72, overapproximation of shiftLeft at line 44. Possible FailurePath: [L25] unsigned char isInitial = 0; [L26] double var_1_1 = 5.5; [L27] signed char var_1_2 = 100; [L28] signed short int var_1_3 = 1; [L29] signed long int var_1_4 = -16; [L30] signed long int var_1_5 = -64; [L31] signed char var_1_6 = 10; [L32] signed char var_1_7 = 5; [L33] double var_1_8 = 16.25; [L34] double var_1_9 = 1.8; [L35] unsigned char var_1_10 = 32; [L36] unsigned char var_1_11 = 64; [L37] unsigned short int var_1_12 = 16; [L38] unsigned long int var_1_13 = 128; [L39] unsigned char var_1_15 = 1; [L40] unsigned short int var_1_16 = 256; [L41] unsigned short int var_1_17 = 8; [L42] signed char var_1_18 = -2; [L140] isInitial = 1 [L141] FCALL initially() [L142] COND TRUE 1 [L143] FCALL updateLastVariables() [L144] CALL updateVariables() [L100] var_1_2 = __VERIFIER_nondet_char() [L101] CALL assume_abort_if_not(var_1_2 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_2 >= -128) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L102] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L103] var_1_3 = __VERIFIER_nondet_short() [L104] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L105] CALL assume_abort_if_not(var_1_3 <= 8) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_3 <= 8) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L106] var_1_4 = __VERIFIER_nondet_long() [L107] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L108] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L109] var_1_5 = __VERIFIER_nondet_long() [L110] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L111] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L112] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L113] var_1_6 = __VERIFIER_nondet_char() [L114] CALL assume_abort_if_not(var_1_6 >= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_6 >= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L115] CALL assume_abort_if_not(var_1_6 <= 12) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_6 <= 12) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L116] var_1_7 = __VERIFIER_nondet_char() [L117] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L118] CALL assume_abort_if_not(var_1_7 <= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_7 <= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L119] var_1_8 = __VERIFIER_nondet_double() [L120] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=9/5] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=9/5] [L121] var_1_9 = __VERIFIER_nondet_double() [L122] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L123] var_1_11 = __VERIFIER_nondet_uchar() [L124] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L125] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L126] var_1_15 = __VERIFIER_nondet_uchar() [L127] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L128] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L129] var_1_17 = __VERIFIER_nondet_ushort() [L130] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=1, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=1, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L131] CALL assume_abort_if_not(var_1_17 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=1, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_17 <= 65535) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=1, var_1_18=-2, var_1_1=11/2, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L144] RET updateVariables() [L145] CALL step() [L72] EXPR var_1_2 >> var_1_3 [L72] COND TRUE (var_1_2 >> var_1_3) == (var_1_4 / var_1_5) [L73] CALL, EXPR functionized0(var_1_6, var_1_3) [L44] EXPR functionized0_localFunctionVar1 << (functionized0_localFunctionVar0 - var_1_7) [L44] return (functionized0_localFunctionVar1 << (functionized0_localFunctionVar0 - var_1_7)); [L73] RET, EXPR functionized0(var_1_6, var_1_3) [L73] CALL, EXPR functionized1(var_1_4) [L47] return ((functionized1_localFunctionVar0 & 0) * var_1_5); [L73] RET, EXPR functionized1(var_1_4) [L73] COND TRUE (functionized0(var_1_6, var_1_3)) > functionized1(var_1_4) [L74] var_1_1 = ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) [L79] COND TRUE var_1_6 <= (var_1_4 + var_1_7) [L80] var_1_10 = var_1_11 [L84] COND FALSE !(((var_1_6 >> 2) * var_1_10) > var_1_4) [L87] EXPR 1 << var_1_2 [L87] COND FALSE !((1 << var_1_2) != (-500 / -100)) [L94] var_1_13 = var_1_6 [L96] CALL functionized3(var_1_17, var_1_8, var_1_10, var_1_9, var_1_15, 256) [L53] COND TRUE (- functionized3_localFunctionVar3) <= functionized3_localFunctionVar1 [L54] COND TRUE \read(functionized3_localFunctionVar4) [L55] COND TRUE ((((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64)))) < var_1_2 [L56] COND FALSE !(functionized3_localFunctionVar0 == functionized3_localFunctionVar2) [L96] RET functionized3(var_1_17, var_1_8, var_1_10, var_1_9, var_1_15, 256) [L97] var_1_18 = var_1_3 [L145] RET step() [L146] CALL, EXPR property() [L136] EXPR var_1_2 >> var_1_3 [L136] EXPR ((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 [L136] EXPR var_1_3 << (var_1_6 - var_1_7) [L136] EXPR ((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 [L136] EXPR (((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) [L136-L137] return (((((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6)))) && (((- var_1_9) <= var_1_8) ? (var_1_15 ? ((((((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64)))) < var_1_2) ? ((var_1_17 == var_1_10) ? (var_1_16 == ((unsigned short int) var_1_11)) : 1) : (var_1_16 == ((unsigned short int) 256))) : (var_1_16 == ((unsigned short int) var_1_3))) : (var_1_16 == ((unsigned short int) var_1_10)))) && (var_1_18 == ((signed char) var_1_3)) ; [L146] RET, EXPR property() [L146] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=6, var_1_15=1, var_1_16=256, var_1_17=1, var_1_18=8, var_1_1=3, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=6, var_1_15=1, var_1_16=256, var_1_17=1, var_1_18=8, var_1_1=3, var_1_2=127, var_1_3=8, var_1_4=253, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=2, var_1_9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 21, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 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 00:43:03,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 b5fd059d5a759507a96afa6a0d4588ef4f04a7933448ee3dd4bfcf9210da23be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:43:06,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:43:06,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:43:06,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:43:06,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:43:06,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:43:06,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:43:06,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:43:06,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:43:06,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:43:06,442 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:43:06,442 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:43:06,443 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:43:06,445 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:43:06,445 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:43:06,446 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:43:06,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:43:06,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:43:06,448 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:43:06,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:43:06,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:43:06,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:43:06,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:43:06,450 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:43:06,451 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:43:06,451 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:43:06,451 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:43:06,452 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:43:06,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:43:06,453 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:43:06,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:43:06,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:43:06,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:43:06,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:06,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:43:06,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:43:06,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:43:06,456 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:43:06,456 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:43:06,457 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:43:06,457 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:43:06,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:43:06,458 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_3f557b3f-1123-421b-8c88-4c8711ef8b99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5fd059d5a759507a96afa6a0d4588ef4f04a7933448ee3dd4bfcf9210da23be [2023-11-12 00:43:06,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:43:06,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:43:06,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:43:06,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:43:06,953 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:43:06,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i [2023-11-12 00:43:10,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:43:10,392 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:43:10,395 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i [2023-11-12 00:43:10,405 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/data/a3601766b/7609075b7ccf4ca0946927f8a4088849/FLAGbf76e0f8b [2023-11-12 00:43:10,420 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/data/a3601766b/7609075b7ccf4ca0946927f8a4088849 [2023-11-12 00:43:10,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:43:10,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:43:10,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:10,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:43:10,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:43:10,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:10,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bb06ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10, skipping insertion in model container [2023-11-12 00:43:10,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:10,485 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:43:10,680 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_3f557b3f-1123-421b-8c88-4c8711ef8b99/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i[919,932] [2023-11-12 00:43:10,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:10,786 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:43:10,798 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_3f557b3f-1123-421b-8c88-4c8711ef8b99/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-9.i[919,932] [2023-11-12 00:43:10,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:10,924 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:43:10,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10 WrapperNode [2023-11-12 00:43:10,925 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:10,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:10,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:43:10,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:43:10,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:10,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,021 INFO L138 Inliner]: procedures = 31, calls = 38, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 155 [2023-11-12 00:43:11,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:11,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:43:11,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:43:11,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:43:11,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:43:11,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:43:11,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:43:11,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:43:11,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (1/1) ... [2023-11-12 00:43:11,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:11,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:11,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:43:11,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:43:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:43:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:43:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:43:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:43:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:43:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:43:11,329 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:43:11,331 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:43:11,789 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:43:11,796 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:43:11,797 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:43:11,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:11 BoogieIcfgContainer [2023-11-12 00:43:11,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:43:11,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:43:11,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:43:11,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:43:11,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:43:10" (1/3) ... [2023-11-12 00:43:11,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f9ddba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:11, skipping insertion in model container [2023-11-12 00:43:11,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:10" (2/3) ... [2023-11-12 00:43:11,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f9ddba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:11, skipping insertion in model container [2023-11-12 00:43:11,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:11" (3/3) ... [2023-11-12 00:43:11,809 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_functionizing_file-9.i [2023-11-12 00:43:11,828 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:43:11,828 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:43:11,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:43:11,885 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;@2fa2d782, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:43:11,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:43:11,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 43 states have internal predecessors, (57), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:43:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-12 00:43:11,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:43:11,933 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:11,935 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:43:11,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:43:11,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1971917253, now seen corresponding path program 1 times [2023-11-12 00:43:11,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:43:11,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355092410] [2023-11-12 00:43:11,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:11,960 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 00:43:11,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:43:11,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 00:43:12,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 00:43:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:12,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:43:12,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:43:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-12 00:43:12,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:43:12,415 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:43:12,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355092410] [2023-11-12 00:43:12,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355092410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:43:12,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:43:12,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:43:12,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706289571] [2023-11-12 00:43:12,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:43:12,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:43:12,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:43:12,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:43:12,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:43:12,471 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 43 states have internal predecessors, (57), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-12 00:43:12,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:43:12,522 INFO L93 Difference]: Finished difference Result 125 states and 213 transitions. [2023-11-12 00:43:12,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:43:12,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 132 [2023-11-12 00:43:12,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:43:12,537 INFO L225 Difference]: With dead ends: 125 [2023-11-12 00:43:12,537 INFO L226 Difference]: Without dead ends: 62 [2023-11-12 00:43:12,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:43:12,544 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:43:12,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:43:12,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-12 00:43:12,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-12 00:43:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:43:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2023-11-12 00:43:12,593 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 132 [2023-11-12 00:43:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:43:12,595 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2023-11-12 00:43:12,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-12 00:43:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2023-11-12 00:43:12,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 00:43:12,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:43:12,600 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:12,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 00:43:12,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 00:43:12,816 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:43:12,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:43:12,817 INFO L85 PathProgramCache]: Analyzing trace with hash -2079072756, now seen corresponding path program 1 times [2023-11-12 00:43:12,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:43:12,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100658063] [2023-11-12 00:43:12,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:12,818 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 00:43:12,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:43:12,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 00:43:12,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 00:43:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:13,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 00:43:13,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:43:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 129 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-12 00:43:14,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:43:14,920 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:43:14,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100658063] [2023-11-12 00:43:14,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100658063] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:43:14,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [700711718] [2023-11-12 00:43:14,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:14,927 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:43:14,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:43:14,930 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:43:14,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 00:43:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:16,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-12 00:43:16,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:43:17,195 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 129 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-12 00:43:17,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:43:17,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [700711718] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:43:17,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58185134] [2023-11-12 00:43:17,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:17,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:43:17,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:17,275 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:43:17,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:43:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:17,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-12 00:43:17,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:43:19,056 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 459 proven. 150 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-12 00:43:19,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:43:19,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58185134] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:43:19,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:43:19,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 16] total 18 [2023-11-12 00:43:19,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244417473] [2023-11-12 00:43:19,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:43:19,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 00:43:19,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:43:19,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 00:43:19,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2023-11-12 00:43:19,109 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand has 18 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 17 states have internal predecessors, (66), 5 states have call successors, (31), 5 states have call predecessors, (31), 8 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-12 00:43:23,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:43:23,628 INFO L93 Difference]: Finished difference Result 182 states and 261 transitions. [2023-11-12 00:43:23,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-12 00:43:23,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 17 states have internal predecessors, (66), 5 states have call successors, (31), 5 states have call predecessors, (31), 8 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) Word has length 134 [2023-11-12 00:43:23,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:43:23,633 INFO L225 Difference]: With dead ends: 182 [2023-11-12 00:43:23,634 INFO L226 Difference]: Without dead ends: 123 [2023-11-12 00:43:23,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2023-11-12 00:43:23,637 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 128 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:43:23,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 687 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-12 00:43:23,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-12 00:43:23,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 78. [2023-11-12 00:43:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 51 states have internal predecessors, (60), 21 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:43:23,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2023-11-12 00:43:23,662 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 102 transitions. Word has length 134 [2023-11-12 00:43:23,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:43:23,663 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 102 transitions. [2023-11-12 00:43:23,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 17 states have internal predecessors, (66), 5 states have call successors, (31), 5 states have call predecessors, (31), 8 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-12 00:43:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 102 transitions. [2023-11-12 00:43:23,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 00:43:23,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:43:23,667 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:23,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:43:23,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 00:43:24,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:43:24,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt [2023-11-12 00:43:24,278 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:43:24,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:43:24,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1406547914, now seen corresponding path program 1 times [2023-11-12 00:43:24,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:43:24,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154635766] [2023-11-12 00:43:24,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:24,287 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 00:43:24,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:43:24,292 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 00:43:24,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f557b3f-1123-421b-8c88-4c8711ef8b99/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 (6)] Waiting until timeout for monitored process [2023-11-12 00:43:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:24,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-12 00:43:24,593 INFO L285 TraceCheckSpWp]: Computing forward predicates...