./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh --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 6568da6d70491d0e7c183d700177071276bba2ccead1095511d807fbd8d57527 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:35:35,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:35:35,269 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:35:35,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:35:35,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:35:35,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:35:35,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:35:35,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:35:35,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:35:35,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:35:35,304 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:35:35,305 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:35:35,305 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:35:35,306 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:35:35,306 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:35:35,307 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:35:35,307 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:35:35,308 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:35:35,308 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:35:35,309 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:35:35,310 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:35:35,310 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:35:35,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:35:35,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:35:35,312 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:35:35,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:35:35,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:35:35,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:35:35,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:35:35,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:35:35,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:35:35,315 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:35:35,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:35:35,316 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:35:35,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:35:35,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:35:35,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:35:35,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:35:35,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:35:35,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:35:35,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:35:35,318 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:35:35,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:35:35,318 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:35:35,319 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:35:35,319 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:35:35,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:35:35,319 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_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6568da6d70491d0e7c183d700177071276bba2ccead1095511d807fbd8d57527 [2023-12-02 13:35:35,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:35:35,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:35:35,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:35:35,545 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:35:35,545 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:35:35,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i [2023-12-02 13:35:38,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:35:38,512 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:35:38,513 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i [2023-12-02 13:35:38,522 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/data/50f2bd21d/b2f3017e47bc4b0d8238b3c8c7f0db33/FLAGf8c3919b8 [2023-12-02 13:35:38,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/data/50f2bd21d/b2f3017e47bc4b0d8238b3c8c7f0db33 [2023-12-02 13:35:38,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:35:38,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:35:38,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:35:38,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:35:38,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:35:38,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3956eb60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38, skipping insertion in model container [2023-12-02 13:35:38,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,578 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:35:38,710 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_f1e441ee-da28-49a0-b155-ae7b1bf01669/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i[919,932] [2023-12-02 13:35:38,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:35:38,766 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:35:38,776 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_f1e441ee-da28-49a0-b155-ae7b1bf01669/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i[919,932] [2023-12-02 13:35:38,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:35:38,818 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:35:38,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38 WrapperNode [2023-12-02 13:35:38,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:35:38,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:35:38,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:35:38,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:35:38,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,863 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 150 [2023-12-02 13:35:38,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:35:38,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:35:38,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:35:38,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:35:38,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:35:38,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:35:38,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:35:38,895 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:35:38,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (1/1) ... [2023-12-02 13:35:38,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:35:38,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:35:38,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:35:38,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:35:38,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:35:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:35:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:35:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:35:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:35:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:35:39,051 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:35:39,053 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:35:39,287 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:35:39,451 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:35:39,451 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:35:39,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:35:39 BoogieIcfgContainer [2023-12-02 13:35:39,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:35:39,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:35:39,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:35:39,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:35:39,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:35:38" (1/3) ... [2023-12-02 13:35:39,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d0bd88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:35:39, skipping insertion in model container [2023-12-02 13:35:39,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:38" (2/3) ... [2023-12-02 13:35:39,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d0bd88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:35:39, skipping insertion in model container [2023-12-02 13:35:39,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:35:39" (3/3) ... [2023-12-02 13:35:39,462 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-15.i [2023-12-02 13:35:39,482 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:35:39,482 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:35:39,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:35:39,540 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;@341030d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:35:39,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:35:39,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 13:35:39,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 13:35:39,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:35:39,553 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:35:39,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:35:39,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:35:39,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2060288953, now seen corresponding path program 1 times [2023-12-02 13:35:39,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:35:39,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369847834] [2023-12-02 13:35:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:35:39,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:35:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:35:39,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:35:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:35:40,003 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:35:40,005 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:35:40,006 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:35:40,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:35:40,013 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:35:40,018 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:35:40,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:35:40 BoogieIcfgContainer [2023-12-02 13:35:40,096 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:35:40,097 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:35:40,097 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:35:40,097 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:35:40,097 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:35:39" (3/4) ... [2023-12-02 13:35:40,099 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:35:40,101 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:35:40,101 INFO L158 Benchmark]: Toolchain (without parser) took 1564.65ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 72.5MB in the end (delta: 35.2MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2023-12-02 13:35:40,102 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:35:40,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.56ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 94.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 13:35:40,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.16ms. Allocated memory is still 148.9MB. Free memory was 94.2MB in the beginning and 91.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:35:40,104 INFO L158 Benchmark]: Boogie Preprocessor took 29.48ms. Allocated memory is still 148.9MB. Free memory was 91.8MB in the beginning and 90.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:35:40,104 INFO L158 Benchmark]: RCFGBuilder took 558.96ms. Allocated memory is still 148.9MB. Free memory was 90.1MB in the beginning and 115.3MB in the end (delta: -25.2MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2023-12-02 13:35:40,105 INFO L158 Benchmark]: TraceAbstraction took 640.30ms. Allocated memory is still 148.9MB. Free memory was 114.5MB in the beginning and 73.4MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-12-02 13:35:40,105 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 148.9MB. Free memory was 73.4MB in the beginning and 73.4MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:35:40,109 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.56ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 94.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.16ms. Allocated memory is still 148.9MB. Free memory was 94.2MB in the beginning and 91.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.48ms. Allocated memory is still 148.9MB. Free memory was 91.8MB in the beginning and 90.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 558.96ms. Allocated memory is still 148.9MB. Free memory was 90.1MB in the beginning and 115.3MB in the end (delta: -25.2MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * TraceAbstraction took 640.30ms. Allocated memory is still 148.9MB. Free memory was 114.5MB in the beginning and 73.4MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 148.9MB. Free memory was 73.4MB in the beginning and 73.4MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55, overapproximation of someUnaryDOUBLEoperation at line 55, overapproximation of someBinaryDOUBLEComparisonOperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -10; [L23] float var_1_3 = 32.4; [L24] float var_1_4 = 49.2; [L25] signed short int var_1_7 = 10; [L26] signed short int var_1_8 = 64; [L27] signed short int var_1_9 = 256; [L28] signed char var_1_10 = -5; [L29] signed char var_1_11 = 5; [L30] double var_1_12 = 256.4; [L31] float var_1_13 = 2.6; [L32] float var_1_14 = 128.125; [L33] double var_1_15 = 32.5; [L34] double var_1_16 = 10000000000.25; [L35] signed char var_1_17 = -5; [L36] unsigned char var_1_19 = 0; [L37] unsigned char var_1_20 = 0; [L38] signed long int var_1_21 = 1; [L39] signed short int var_1_22 = 17178; [L40] signed short int var_1_23 = 5; [L41] signed long int var_1_25 = -4; [L42] signed char last_1_var_1_10 = -5; [L43] signed long int last_1_var_1_21 = 1; [L44] signed long int last_1_var_1_25 = -4; [L137] isInitial = 1 [L138] FCALL initially() [L139] COND TRUE 1 [L140] CALL updateLastVariables() [L128] last_1_var_1_10 = var_1_10 [L129] last_1_var_1_21 = var_1_21 [L130] last_1_var_1_25 = var_1_25 [L140] RET updateLastVariables() [L141] CALL updateVariables() [L93] var_1_3 = __VERIFIER_nondet_float() [L94] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_4=246/5, var_1_7=10, var_1_8=64, var_1_9=256] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_4=246/5, var_1_7=10, var_1_8=64, var_1_9=256] [L95] var_1_4 = __VERIFIER_nondet_float() [L96] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=10, var_1_8=64, var_1_9=256] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=10, var_1_8=64, var_1_9=256] [L97] var_1_7 = __VERIFIER_nondet_short() [L98] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=64, var_1_9=256] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=64, var_1_9=256] [L99] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=64, var_1_9=256] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=64, var_1_9=256] [L100] var_1_8 = __VERIFIER_nondet_short() [L101] CALL assume_abort_if_not(var_1_8 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=256] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_8 >= -1) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=256] [L102] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=256] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=256] [L103] var_1_9 = __VERIFIER_nondet_short() [L104] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L105] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=5, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L106] var_1_11 = __VERIFIER_nondet_char() [L107] CALL assume_abort_if_not(var_1_11 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_11 >= -127) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L108] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_13=13/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L109] var_1_13 = __VERIFIER_nondet_float() [L110] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_14=1025/8, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L111] var_1_14 = __VERIFIER_nondet_float() [L112] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_15=65/2, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L113] var_1_15 = __VERIFIER_nondet_double() [L114] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_16=40000000001/4, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L115] var_1_16 = __VERIFIER_nondet_double() [L116] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L117] var_1_20 = __VERIFIER_nondet_uchar() [L118] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L119] CALL assume_abort_if_not(var_1_20 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_20 <= 0) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=17178, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L120] var_1_22 = __VERIFIER_nondet_short() [L121] CALL assume_abort_if_not(var_1_22 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=16383, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_22 >= 16383) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=16383, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L122] CALL assume_abort_if_not(var_1_22 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=16383, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_22 <= 32767) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=16383, var_1_23=5, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L123] var_1_23 = __VERIFIER_nondet_short() [L124] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=16383, var_1_23=0, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=16383, var_1_23=0, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L125] CALL assume_abort_if_not(var_1_23 <= 16384) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=16383, var_1_23=0, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not(var_1_23 <= 16384) VAL [isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=-5, var_1_11=126, var_1_12=1282/5, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=1, var_1_22=16383, var_1_23=0, var_1_25=-4, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L141] RET updateVariables() [L142] CALL step() [L48] COND TRUE last_1_var_1_10 < last_1_var_1_25 [L49] COND FALSE !(var_1_11 <= last_1_var_1_25) [L53] var_1_10 = var_1_11 [L54] COND TRUE var_1_4 >= (var_1_3 * (var_1_13 + var_1_14)) [L55] var_1_12 = (((((var_1_15 - var_1_16)) < (-0.85)) ? ((var_1_15 - var_1_16)) : (-0.85))) [L59] COND FALSE !(var_1_12 <= ((((var_1_12) < (var_1_12)) ? (var_1_12) : (var_1_12)))) [L66] COND FALSE !(\read(var_1_19)) [L69] var_1_25 = var_1_10 [L71] COND TRUE var_1_19 || (var_1_12 > var_1_12) [L72] var_1_1 = (var_1_17 + var_1_17) [L76] COND FALSE !(\read(var_1_20)) [L89] var_1_21 = var_1_9 [L142] RET step() [L143] CALL, EXPR property() [L133-L134] return (((((((var_1_19 || (var_1_12 > var_1_12)) ? (var_1_1 == ((signed short int) (var_1_17 + var_1_17))) : (var_1_1 == ((signed short int) ((((((var_1_7 + 1)) < (var_1_8)) ? ((var_1_7 + 1)) : (var_1_8))) - (24762 - var_1_9))))) && (var_1_10 == ((signed char) var_1_11))) && ((var_1_4 >= (var_1_3 * (var_1_13 + var_1_14))) ? (var_1_12 == ((double) (((((var_1_15 - var_1_16)) < (-0.85)) ? ((var_1_15 - var_1_16)) : (-0.85))))) : (var_1_12 == ((double) var_1_16)))) && ((var_1_12 <= ((((var_1_12) < (var_1_12)) ? (var_1_12) : (var_1_12)))) ? ((var_1_19 || var_1_19) ? (var_1_17 == ((signed char) var_1_11)) : (var_1_17 == ((signed char) var_1_11))) : 1)) && ((last_1_var_1_10 < last_1_var_1_25) ? ((var_1_11 <= last_1_var_1_25) ? (var_1_19 == ((unsigned char) var_1_20)) : 1) : 1)) && (var_1_20 ? ((var_1_10 < ((var_1_22 - var_1_23) - var_1_9)) ? (var_1_19 ? ((last_1_var_1_21 == (var_1_22 + var_1_11)) ? (var_1_21 == ((signed long int) var_1_1)) : 1) : (var_1_21 == ((signed long int) var_1_10))) : (var_1_21 == ((signed long int) var_1_11))) : (var_1_21 == ((signed long int) var_1_9)))) && (var_1_19 ? (var_1_25 == ((signed long int) (var_1_17 + ((((var_1_17) < (((((var_1_8) < (var_1_17)) ? (var_1_8) : (var_1_17))))) ? (var_1_17) : (((((var_1_8) < (var_1_17)) ? (var_1_8) : (var_1_17))))))))) : (var_1_25 == ((signed long int) var_1_10))) ; [L143] RET, EXPR property() [L143] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=126, var_1_11=126, var_1_12=10000000005, var_1_16=10000000005, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=8368, var_1_22=16383, var_1_23=0, var_1_25=126, var_1_7=16383, var_1_8=16384, var_1_9=8368] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=-5, last_1_var_1_21=1, last_1_var_1_25=-4, var_1_10=126, var_1_11=126, var_1_12=10000000005, var_1_16=10000000005, var_1_17=-5, var_1_19=0, var_1_1=-10, var_1_20=0, var_1_21=8368, var_1_22=16383, var_1_23=0, var_1_25=126, var_1_7=16383, var_1_8=16384, var_1_9=8368] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 20, 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=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 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 [2023-12-02 13:35:40,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh --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 6568da6d70491d0e7c183d700177071276bba2ccead1095511d807fbd8d57527 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:35:42,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:35:42,090 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 13:35:42,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:35:42,097 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:35:42,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:35:42,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:35:42,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:35:42,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:35:42,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:35:42,129 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:35:42,129 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:35:42,130 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:35:42,130 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:35:42,131 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:35:42,131 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:35:42,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:35:42,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:35:42,133 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:35:42,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:35:42,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:35:42,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:35:42,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:35:42,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:35:42,136 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:35:42,137 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:35:42,137 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:35:42,137 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:35:42,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:35:42,138 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:35:42,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:35:42,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:35:42,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:35:42,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:35:42,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:35:42,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:35:42,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:35:42,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:35:42,141 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:35:42,142 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:35:42,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:35:42,142 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:35:42,142 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:35:42,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:35:42,143 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_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6568da6d70491d0e7c183d700177071276bba2ccead1095511d807fbd8d57527 [2023-12-02 13:35:42,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:35:42,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:35:42,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:35:42,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:35:42,444 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:35:42,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i [2023-12-02 13:35:45,247 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:35:45,456 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:35:45,457 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i [2023-12-02 13:35:45,467 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/data/21f74c3f0/5bbb38451ed340568303459d75d3103f/FLAG48c7c9fa3 [2023-12-02 13:35:45,482 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/data/21f74c3f0/5bbb38451ed340568303459d75d3103f [2023-12-02 13:35:45,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:35:45,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:35:45,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:35:45,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:35:45,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:35:45,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1761af5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45, skipping insertion in model container [2023-12-02 13:35:45,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:35:45,668 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_f1e441ee-da28-49a0-b155-ae7b1bf01669/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i[919,932] [2023-12-02 13:35:45,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:35:45,740 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:35:45,751 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_f1e441ee-da28-49a0-b155-ae7b1bf01669/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-15.i[919,932] [2023-12-02 13:35:45,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:35:45,800 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:35:45,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45 WrapperNode [2023-12-02 13:35:45,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:35:45,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:35:45,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:35:45,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:35:45,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,847 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2023-12-02 13:35:45,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:35:45,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:35:45,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:35:45,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:35:45,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:35:45,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:35:45,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:35:45,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:35:45,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (1/1) ... [2023-12-02 13:35:45,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:35:45,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:35:45,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:35:45,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:35:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:35:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:35:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:35:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:35:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:35:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:35:46,061 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:35:46,063 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:35:48,824 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:35:48,871 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:35:48,872 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:35:48,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:35:48 BoogieIcfgContainer [2023-12-02 13:35:48,873 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:35:48,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:35:48,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:35:48,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:35:48,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:35:45" (1/3) ... [2023-12-02 13:35:48,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1483ade2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:35:48, skipping insertion in model container [2023-12-02 13:35:48,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:45" (2/3) ... [2023-12-02 13:35:48,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1483ade2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:35:48, skipping insertion in model container [2023-12-02 13:35:48,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:35:48" (3/3) ... [2023-12-02 13:35:48,881 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-15.i [2023-12-02 13:35:48,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:35:48,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:35:48,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:35:48,947 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;@463e8f30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:35:48,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:35:48,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 35 states have (on average 1.457142857142857) internal successors, (51), 36 states have internal predecessors, (51), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 13:35:48,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-02 13:35:48,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:35:48,993 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:35:48,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:35:49,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:35:49,002 INFO L85 PathProgramCache]: Analyzing trace with hash 490304764, now seen corresponding path program 1 times [2023-12-02 13:35:49,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:35:49,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545801638] [2023-12-02 13:35:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:35:49,025 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 [2023-12-02 13:35:49,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:35:49,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:35:49,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:35:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:35:49,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 13:35:49,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:35:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-12-02 13:35:49,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:35:49,497 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:35:49,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545801638] [2023-12-02 13:35:49,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545801638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:35:49,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:35:49,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:35:49,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367307570] [2023-12-02 13:35:49,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:35:49,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:35:49,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:35:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:35:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:35:49,538 INFO L87 Difference]: Start difference. First operand has 58 states, 35 states have (on average 1.457142857142857) internal successors, (51), 36 states have internal predecessors, (51), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 13:35:50,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:50,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:35:50,975 INFO L93 Difference]: Finished difference Result 113 states and 200 transitions. [2023-12-02 13:35:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:35:50,996 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 125 [2023-12-02 13:35:50,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:35:51,005 INFO L225 Difference]: With dead ends: 113 [2023-12-02 13:35:51,005 INFO L226 Difference]: Without dead ends: 56 [2023-12-02 13:35:51,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:35:51,013 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:35:51,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-02 13:35:51,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-02 13:35:51,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-12-02 13:35:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 13:35:51,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 86 transitions. [2023-12-02 13:35:51,058 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 86 transitions. Word has length 125 [2023-12-02 13:35:51,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:35:51,059 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 86 transitions. [2023-12-02 13:35:51,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 13:35:51,060 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 86 transitions. [2023-12-02 13:35:51,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-02 13:35:51,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:35:51,063 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:35:51,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:35:51,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:35:51,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:35:51,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:35:51,265 INFO L85 PathProgramCache]: Analyzing trace with hash -843425208, now seen corresponding path program 1 times [2023-12-02 13:35:51,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:35:51,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069004356] [2023-12-02 13:35:51,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:35:51,266 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 [2023-12-02 13:35:51,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:35:51,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:35:51,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:35:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:35:51,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 13:35:51,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:35:52,922 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 13:35:52,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:35:52,923 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:35:52,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069004356] [2023-12-02 13:35:52,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069004356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:35:52,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:35:52,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:35:52,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168094637] [2023-12-02 13:35:52,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:35:52,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:35:52,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:35:52,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:35:52,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:35:52,927 INFO L87 Difference]: Start difference. First operand 56 states and 86 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 13:35:54,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:56,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:56,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:35:56,204 INFO L93 Difference]: Finished difference Result 167 states and 257 transitions. [2023-12-02 13:35:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:35:56,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2023-12-02 13:35:56,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:35:56,228 INFO L225 Difference]: With dead ends: 167 [2023-12-02 13:35:56,228 INFO L226 Difference]: Without dead ends: 112 [2023-12-02 13:35:56,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:35:56,230 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 47 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:35:56,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 236 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-02 13:35:56,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-02 13:35:56,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 95. [2023-12-02 13:35:56,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 52 states have internal predecessors, (64), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 13:35:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 144 transitions. [2023-12-02 13:35:56,261 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 144 transitions. Word has length 125 [2023-12-02 13:35:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:35:56,263 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 144 transitions. [2023-12-02 13:35:56,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 13:35:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 144 transitions. [2023-12-02 13:35:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 13:35:56,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:35:56,266 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:35:56,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 13:35:56,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:35:56,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:35:56,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:35:56,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1239782105, now seen corresponding path program 1 times [2023-12-02 13:35:56,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:35:56,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550130056] [2023-12-02 13:35:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:35:56,469 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 [2023-12-02 13:35:56,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:35:56,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:35:56,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 13:35:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:35:56,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:35:56,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:35:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 13:35:58,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:35:58,494 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:35:58,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550130056] [2023-12-02 13:35:58,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550130056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:35:58,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:35:58,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:35:58,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488451540] [2023-12-02 13:35:58,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:35:58,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:35:58,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:35:58,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:35:58,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:35:58,498 INFO L87 Difference]: Start difference. First operand 95 states and 144 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 13:35:59,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:02,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:04,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:13,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:36:14,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:36:14,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:36:14,811 INFO L93 Difference]: Finished difference Result 205 states and 314 transitions. [2023-12-02 13:36:14,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:36:14,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 126 [2023-12-02 13:36:14,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:36:14,834 INFO L225 Difference]: With dead ends: 205 [2023-12-02 13:36:14,834 INFO L226 Difference]: Without dead ends: 150 [2023-12-02 13:36:14,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:36:14,836 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 70 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:36:14,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 208 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 15.4s Time] [2023-12-02 13:36:14,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-02 13:36:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 96. [2023-12-02 13:36:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 53 states have internal predecessors, (65), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 13:36:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 145 transitions. [2023-12-02 13:36:14,877 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 145 transitions. Word has length 126 [2023-12-02 13:36:14,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:36:14,878 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 145 transitions. [2023-12-02 13:36:14,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 13:36:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 145 transitions. [2023-12-02 13:36:14,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 13:36:14,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:36:14,881 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:36:14,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 13:36:15,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:36:15,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:36:15,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:36:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash 430435479, now seen corresponding path program 1 times [2023-12-02 13:36:15,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:36:15,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246002782] [2023-12-02 13:36:15,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:15,090 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 [2023-12-02 13:36:15,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:36:15,092 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:36:15,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 (5)] Waiting until timeout for monitored process [2023-12-02 13:36:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:36:15,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:36:15,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:36:16,469 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 336 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-12-02 13:36:16,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:36:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 13:36:17,077 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:36:17,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246002782] [2023-12-02 13:36:17,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246002782] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:36:17,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [683184399] [2023-12-02 13:36:17,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:17,078 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:36:17,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:36:17,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:36:17,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 13:36:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:36:17,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:36:17,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:36:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 13:36:17,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:36:17,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [683184399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:36:17,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:36:17,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 14 [2023-12-02 13:36:17,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610837054] [2023-12-02 13:36:17,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:36:17,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:36:17,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:36:17,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:36:17,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-02 13:36:17,725 INFO L87 Difference]: Start difference. First operand 96 states and 145 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 13:36:19,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:21,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:22,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:36:22,002 INFO L93 Difference]: Finished difference Result 272 states and 401 transitions. [2023-12-02 13:36:22,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 13:36:22,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 126 [2023-12-02 13:36:22,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:36:22,008 INFO L225 Difference]: With dead ends: 272 [2023-12-02 13:36:22,008 INFO L226 Difference]: Without dead ends: 216 [2023-12-02 13:36:22,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-02 13:36:22,010 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 191 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:36:22,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 244 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-02 13:36:22,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-12-02 13:36:22,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 144. [2023-12-02 13:36:22,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 86 states have internal predecessors, (105), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-02 13:36:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 213 transitions. [2023-12-02 13:36:22,051 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 213 transitions. Word has length 126 [2023-12-02 13:36:22,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:36:22,052 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 213 transitions. [2023-12-02 13:36:22,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 13:36:22,052 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 213 transitions. [2023-12-02 13:36:22,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 13:36:22,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:36:22,055 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:36:22,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 13:36:22,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 (5)] Ended with exit code 0 [2023-12-02 13:36:22,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:36:22,458 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:36:22,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:36:22,459 INFO L85 PathProgramCache]: Analyzing trace with hash 489540823, now seen corresponding path program 1 times [2023-12-02 13:36:22,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:36:22,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246430703] [2023-12-02 13:36:22,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:22,460 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 [2023-12-02 13:36:22,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:36:22,461 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:36:22,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 13:36:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:36:22,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:36:22,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:36:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 336 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-12-02 13:36:23,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:36:24,047 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 13:36:24,047 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:36:24,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246430703] [2023-12-02 13:36:24,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246430703] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:36:24,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2137247895] [2023-12-02 13:36:24,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:24,048 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:36:24,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:36:24,049 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:36:24,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 13:36:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:36:25,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:36:25,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:36:25,762 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 357 proven. 18 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-12-02 13:36:25,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:36:26,193 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 13:36:26,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2137247895] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:36:26,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128771253] [2023-12-02 13:36:26,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:26,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:36:26,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:36:26,196 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:36:26,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 13:36:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:36:26,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 13:36:26,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:36:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 357 proven. 18 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-12-02 13:36:26,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:36:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 13:36:27,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128771253] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:36:27,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:36:27,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 13 [2023-12-02 13:36:27,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474091149] [2023-12-02 13:36:27,245 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:36:27,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 13:36:27,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:36:27,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 13:36:27,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-12-02 13:36:27,247 INFO L87 Difference]: Start difference. First operand 144 states and 213 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2023-12-02 13:36:29,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:36:32,459 INFO L93 Difference]: Finished difference Result 366 states and 530 transitions. [2023-12-02 13:36:32,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 13:36:32,474 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 126 [2023-12-02 13:36:32,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:36:32,479 INFO L225 Difference]: With dead ends: 366 [2023-12-02 13:36:32,479 INFO L226 Difference]: Without dead ends: 266 [2023-12-02 13:36:32,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 766 GetRequests, 739 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2023-12-02 13:36:32,481 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 239 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:36:32,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 262 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-02 13:36:32,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-12-02 13:36:32,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 148. [2023-12-02 13:36:32,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 88 states have (on average 1.2045454545454546) internal successors, (106), 89 states have internal predecessors, (106), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-02 13:36:32,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 212 transitions. [2023-12-02 13:36:32,523 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 212 transitions. Word has length 126 [2023-12-02 13:36:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:36:32,524 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 212 transitions. [2023-12-02 13:36:32,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2023-12-02 13:36:32,525 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 212 transitions. [2023-12-02 13:36:32,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-02 13:36:32,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:36:32,527 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:36:32,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 13:36:32,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-02 13:36:32,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 13:36:33,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:36:33,129 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:36:33,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:36:33,129 INFO L85 PathProgramCache]: Analyzing trace with hash 959488771, now seen corresponding path program 1 times [2023-12-02 13:36:33,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:36:33,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173017913] [2023-12-02 13:36:33,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:33,130 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 [2023-12-02 13:36:33,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:36:33,131 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:36:33,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e441ee-da28-49a0-b155-ae7b1bf01669/bin/utaipan-verify-nQ1chXbOIh/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 (10)] Waiting until timeout for monitored process [2023-12-02 13:36:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:36:33,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 13:36:33,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:36:52,367 WARN L876 $PredicateComparison]: unable to prove that (and (= c_~var_1_10~0 c_~var_1_11~0) (fp.geq c_~var_1_4~0 (fp.mul c_currentRoundingMode c_~var_1_3~0 (fp.add c_currentRoundingMode c_~var_1_13~0 c_~var_1_14~0))) (bvsle ((_ zero_extend 24) c_~var_1_20~0) (_ bv0 32)) (let ((.cse2 (fp.sub c_currentRoundingMode c_~var_1_15~0 c_~var_1_16~0)) (.cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 17.0 20.0))))) (let ((.cse0 (fp.lt .cse2 .cse1))) (or (and (not .cse0) (= c_~var_1_12~0 .cse1)) (and .cse0 (= c_~var_1_12~0 .cse2))))) (= c_~var_1_19~0 c_~var_1_20~0)) is different from true [2023-12-02 13:38:00,249 WARN L293 SmtUtils]: Spent 16.70s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:38:21,331 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~var_1_10~0 c_~var_1_11~0) (= c_~var_1_25~0 ((_ sign_extend 24) c_~var_1_10~0)) (fp.geq c_~var_1_4~0 (fp.mul c_currentRoundingMode c_~var_1_3~0 (fp.add c_currentRoundingMode c_~var_1_13~0 c_~var_1_14~0))) (bvsle ((_ zero_extend 24) c_~var_1_20~0) (_ bv0 32)) (let ((.cse2 (fp.sub c_currentRoundingMode c_~var_1_15~0 c_~var_1_16~0)) (.cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 17.0 20.0))))) (let ((.cse0 (fp.lt .cse2 .cse1))) (or (and (not .cse0) (= c_~var_1_12~0 .cse1)) (and .cse0 (= c_~var_1_12~0 .cse2))))) (= c_~var_1_17~0 c_~var_1_11~0) (= c_~var_1_19~0 c_~var_1_20~0)) is different from false [2023-12-02 13:39:29,495 WARN L293 SmtUtils]: Spent 20.92s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:40:39,585 WARN L293 SmtUtils]: Spent 19.93s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)