./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1211a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1211a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11de8b1d34bf28c678335a47cf13777a2fdebca168e06294b055c2a549d4333e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:17:05,466 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:17:05,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:17:05,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:17:05,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:17:05,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:17:05,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:17:05,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:17:05,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:17:05,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:17:05,568 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:17:05,569 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:17:05,569 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:17:05,570 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:17:05,570 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:17:05,571 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:17:05,571 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:17:05,572 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:17:05,572 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:17:05,573 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:17:05,574 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:17:05,574 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:17:05,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:17:05,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:17:05,576 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:17:05,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:17:05,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:17:05,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:17:05,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:17:05,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:17:05,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:17:05,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:17:05,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:17:05,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:17:05,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:17:05,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:17:05,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:05,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:17:05,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:17:05,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:17:05,584 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:17:05,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:17:05,585 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:17:05,586 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:17:05,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:17:05,586 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_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11de8b1d34bf28c678335a47cf13777a2fdebca168e06294b055c2a549d4333e [2023-11-19 05:17:05,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:17:05,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:17:05,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:17:05,836 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:17:05,837 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:17:05,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_1211a.c [2023-11-19 05:17:09,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:09,220 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:09,221 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c [2023-11-19 05:17:09,232 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/data/f6df18c75/14a4b44dc4864b40a89f21ee895cc737/FLAG5c44fe43a [2023-11-19 05:17:09,247 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/data/f6df18c75/14a4b44dc4864b40a89f21ee895cc737 [2023-11-19 05:17:09,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:09,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:09,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:09,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:09,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:09,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669a9618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09, skipping insertion in model container [2023-11-19 05:17:09,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:09,538 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_12bd45b3-68be-4ed2-997a-8258d5f76937/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c[2576,2589] [2023-11-19 05:17:09,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:09,559 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:09,590 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_12bd45b3-68be-4ed2-997a-8258d5f76937/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c[2576,2589] [2023-11-19 05:17:09,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:09,607 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:09,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09 WrapperNode [2023-11-19 05:17:09,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:09,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:09,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:09,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:09,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,663 INFO L138 Inliner]: procedures = 19, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 213 [2023-11-19 05:17:09,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:09,665 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:09,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:09,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:09,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:09,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:09,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:09,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:09,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:09,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:09,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:09,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:17:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:17:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 05:17:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:17:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 05:17:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:09,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:09,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 05:17:09,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:17:09,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:17:09,897 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:09,899 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:10,199 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:17:10,310 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:17:10,311 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-19 05:17:10,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:10 BoogieIcfgContainer [2023-11-19 05:17:10,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:17:10,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:17:10,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:17:10,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:17:10,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:17:09" (1/3) ... [2023-11-19 05:17:10,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1288b841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:10, skipping insertion in model container [2023-11-19 05:17:10,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (2/3) ... [2023-11-19 05:17:10,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1288b841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:10, skipping insertion in model container [2023-11-19 05:17:10,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:10" (3/3) ... [2023-11-19 05:17:10,326 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a.c [2023-11-19 05:17:10,341 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:17:10,342 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:17:10,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:17:10,393 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;@2057186, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:17:10,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:17:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:10,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 05:17:10,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:10,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:10,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:10,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:10,412 INFO L85 PathProgramCache]: Analyzing trace with hash 731035718, now seen corresponding path program 1 times [2023-11-19 05:17:10,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:10,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581448661] [2023-11-19 05:17:10,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:10,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:10,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:10,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:10,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581448661] [2023-11-19 05:17:10,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581448661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:10,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:10,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:10,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866280032] [2023-11-19 05:17:10,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:10,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:17:10,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:10,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:17:10,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:17:10,627 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:10,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:10,679 INFO L93 Difference]: Finished difference Result 75 states and 121 transitions. [2023-11-19 05:17:10,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:17:10,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 05:17:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:10,690 INFO L225 Difference]: With dead ends: 75 [2023-11-19 05:17:10,691 INFO L226 Difference]: Without dead ends: 36 [2023-11-19 05:17:10,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:17:10,701 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:10,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:17:10,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-19 05:17:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-19 05:17:10,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:10,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-11-19 05:17:10,746 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 13 [2023-11-19 05:17:10,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:10,746 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-19 05:17:10,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:10,747 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-11-19 05:17:10,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 05:17:10,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:10,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:10,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:17:10,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:10,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:10,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1424154798, now seen corresponding path program 1 times [2023-11-19 05:17:10,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:10,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848555784] [2023-11-19 05:17:10,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:10,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:11,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:11,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848555784] [2023-11-19 05:17:11,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848555784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:11,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:11,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:17:11,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127917724] [2023-11-19 05:17:11,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:11,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:11,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:11,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:11,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:11,038 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:11,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:11,080 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2023-11-19 05:17:11,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:11,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-19 05:17:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:11,084 INFO L225 Difference]: With dead ends: 39 [2023-11-19 05:17:11,084 INFO L226 Difference]: Without dead ends: 36 [2023-11-19 05:17:11,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:11,093 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:11,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:17:11,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-19 05:17:11,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-19 05:17:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:11,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2023-11-19 05:17:11,101 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 16 [2023-11-19 05:17:11,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:11,101 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2023-11-19 05:17:11,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:11,102 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2023-11-19 05:17:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 05:17:11,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:11,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:11,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:17:11,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:11,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:11,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1459402812, now seen corresponding path program 1 times [2023-11-19 05:17:11,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833070337] [2023-11-19 05:17:11,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:11,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:17:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:11,338 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:17:11,338 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:17:11,339 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:17:11,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:17:11,345 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 05:17:11,348 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:17:11,369 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret20 could not be translated [2023-11-19 05:17:11,370 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-19 05:17:11,370 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated [2023-11-19 05:17:11,371 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem19 could not be translated [2023-11-19 05:17:11,371 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret20 could not be translated [2023-11-19 05:17:11,371 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated [2023-11-19 05:17:11,372 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem19 could not be translated [2023-11-19 05:17:11,372 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-19 05:17:11,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:17:11 BoogieIcfgContainer [2023-11-19 05:17:11,381 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:17:11,382 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:17:11,382 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:17:11,382 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:17:11,383 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:10" (3/4) ... [2023-11-19 05:17:11,385 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:17:11,386 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:17:11,387 INFO L158 Benchmark]: Toolchain (without parser) took 2135.57ms. Allocated memory is still 186.6MB. Free memory was 140.4MB in the beginning and 133.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-11-19 05:17:11,387 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:11,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.69ms. Allocated memory is still 186.6MB. Free memory was 139.9MB in the beginning and 127.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:17:11,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.90ms. Allocated memory is still 186.6MB. Free memory was 127.9MB in the beginning and 125.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:11,389 INFO L158 Benchmark]: Boogie Preprocessor took 37.81ms. Allocated memory is still 186.6MB. Free memory was 125.5MB in the beginning and 123.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:11,389 INFO L158 Benchmark]: RCFGBuilder took 612.34ms. Allocated memory is still 186.6MB. Free memory was 123.7MB in the beginning and 98.0MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 05:17:11,390 INFO L158 Benchmark]: TraceAbstraction took 1062.53ms. Allocated memory is still 186.6MB. Free memory was 97.2MB in the beginning and 133.1MB in the end (delta: -35.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:11,390 INFO L158 Benchmark]: Witness Printer took 4.40ms. Allocated memory is still 186.6MB. Free memory is still 133.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:11,392 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.69ms. Allocated memory is still 186.6MB. Free memory was 139.9MB in the beginning and 127.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.90ms. Allocated memory is still 186.6MB. Free memory was 127.9MB in the beginning and 125.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.81ms. Allocated memory is still 186.6MB. Free memory was 125.5MB in the beginning and 123.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 612.34ms. Allocated memory is still 186.6MB. Free memory was 123.7MB in the beginning and 98.0MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1062.53ms. Allocated memory is still 186.6MB. Free memory was 97.2MB in the beginning and 133.1MB in the end (delta: -35.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.40ms. Allocated memory is still 186.6MB. Free memory is still 133.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 112]: 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 111, overapproximation of someBinaryArithmeticFLOAToperation at line 106. Possible FailurePath: [L14] static const float one_modf = 1.0; [L106] float x = 1.0f / 0.0f; [L107] float iptr = __VERIFIER_nondet_float(); [L107] float iptr = __VERIFIER_nondet_float(); [L108] CALL, EXPR modf_float(x, &iptr) [L17] __int32_t i0, j0; [L18] __uint32_t i; VAL [\old(x)=6450839571, iptr={6:0}, iptr={6:0}, one_modf=1, x=6450839571] [L20] ieee_float_shape_type gf_u; [L21] EXPR gf_u.value = (x) [L22] EXPR gf_u.word [L22] EXPR (i0) = gf_u.word [L19-L23] { ieee_float_shape_type gf_u; gf_u.value = (x); (i0) = gf_u.word; } VAL [\old(x)=6450839571, i0=-2139095040, iptr={6:0}, iptr={6:0}, one_modf=1, x=6450839571] [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=6450839571, i0=-2139095040, iptr={6:0}, iptr={6:0}, j0=-126, one_modf=1, x=6450839571] [L25] COND TRUE j0 < 23 VAL [\old(x)=6450839571, i0=-2139095040, iptr={6:0}, iptr={6:0}, j0=-126, one_modf=1, x=6450839571] [L26] COND TRUE j0 < 0 VAL [\old(x)=6450839571, i0=-2139095040, iptr={6:0}, iptr={6:0}, j0=-126, one_modf=1, x=6450839571] [L28] ieee_float_shape_type sf_u; [L29] EXPR sf_u.word = (i0 & 0x80000000) [L30] EXPR sf_u.value [L30] EXPR (*iptr) = sf_u.value [L27-L31] { ieee_float_shape_type sf_u; sf_u.word = (i0 & 0x80000000); (*iptr) = sf_u.value; } VAL [\old(x)=6450839571, i0=-2139095040, iptr={6:0}, iptr={6:0}, j0=-126, one_modf=1, x=6450839571] [L32] return x; VAL [\old(x)=6450839571, \result=6450839571, i0=-2139095040, iptr={6:0}, iptr={6:0}, j0=-126, one_modf=1, x=6450839571] [L108] RET, EXPR modf_float(x, &iptr) [L108] float res = modf_float(x, &iptr); [L111] EXPR \read(iptr) [L111] CALL, EXPR isinf_float(iptr) [L89] __int32_t ix; VAL [\old(x)=6450839570, one_modf=1, x=6450839570] [L91] ieee_float_shape_type gf_u; [L92] EXPR gf_u.value = (x) [L93] EXPR gf_u.word [L93] EXPR (ix) = gf_u.word [L90-L94] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=6450839570, ix=-8388608, one_modf=1, x=6450839570] [L95] ix &= 0x7fffffff [L96] return ((ix) == 0x7f800000L); [L111] RET, EXPR isinf_float(iptr) [L111] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L111] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [iptr={6:0}, one_modf=1, res=6450839571, x=6450839571] [L111] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [iptr={6:0}, one_modf=1, res=6450839571, x=6450839571] [L111] COND TRUE isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L112] reach_error() VAL [iptr={6:0}, one_modf=1, res=6450839571, x=6450839571] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 71 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:17:11,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1211a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11de8b1d34bf28c678335a47cf13777a2fdebca168e06294b055c2a549d4333e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:17:14,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:17:14,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:17:14,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:17:14,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:17:14,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:17:14,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:17:14,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:17:14,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:17:14,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:17:14,288 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:17:14,288 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:17:14,289 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:17:14,290 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:17:14,291 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:17:14,291 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:17:14,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:17:14,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:17:14,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:17:14,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:17:14,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:17:14,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:17:14,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:17:14,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:17:14,296 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:17:14,297 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:17:14,297 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:17:14,298 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:17:14,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:17:14,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:17:14,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:17:14,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:17:14,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:17:14,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:14,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:17:14,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:17:14,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:17:14,302 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:17:14,302 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:17:14,303 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:17:14,303 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:17:14,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:17:14,304 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_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11de8b1d34bf28c678335a47cf13777a2fdebca168e06294b055c2a549d4333e [2023-11-19 05:17:14,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:17:14,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:17:14,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:17:14,726 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:17:14,726 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:17:14,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_1211a.c [2023-11-19 05:17:18,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:18,277 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:18,278 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c [2023-11-19 05:17:18,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/data/0dff0b034/b58f46dedca64b6a993a14273d3a5f4c/FLAG2243ca646 [2023-11-19 05:17:18,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/data/0dff0b034/b58f46dedca64b6a993a14273d3a5f4c [2023-11-19 05:17:18,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:18,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:18,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:18,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:18,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:18,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e980897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18, skipping insertion in model container [2023-11-19 05:17:18,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,341 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:18,569 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_12bd45b3-68be-4ed2-997a-8258d5f76937/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c[2576,2589] [2023-11-19 05:17:18,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:18,598 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:18,651 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_12bd45b3-68be-4ed2-997a-8258d5f76937/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c[2576,2589] [2023-11-19 05:17:18,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:18,683 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:18,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18 WrapperNode [2023-11-19 05:17:18,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:18,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:18,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:18,687 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:18,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,769 INFO L138 Inliner]: procedures = 22, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 193 [2023-11-19 05:17:18,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:18,772 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:18,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:18,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:18,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:18,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:18,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:18,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:18,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (1/1) ... [2023-11-19 05:17:18,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:18,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:18,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:18,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-19 05:17:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:17:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:17:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 05:17:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:17:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 05:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:17:19,087 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:19,089 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:19,561 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:17:19,568 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:17:19,568 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-19 05:17:19,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:19 BoogieIcfgContainer [2023-11-19 05:17:19,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:17:19,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:17:19,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:17:19,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:17:19,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:17:18" (1/3) ... [2023-11-19 05:17:19,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1237881c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:19, skipping insertion in model container [2023-11-19 05:17:19,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:18" (2/3) ... [2023-11-19 05:17:19,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1237881c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:19, skipping insertion in model container [2023-11-19 05:17:19,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:19" (3/3) ... [2023-11-19 05:17:19,581 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a.c [2023-11-19 05:17:19,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:17:19,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:17:19,661 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:17:19,669 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;@c34a2a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:17:19,670 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:17:19,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.625) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 05:17:19,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:19,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:19,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:19,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:19,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1888439402, now seen corresponding path program 1 times [2023-11-19 05:17:19,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:17:19,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076545975] [2023-11-19 05:17:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:19,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:19,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:17:19,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:17:19,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:17:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:19,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:17:19,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:19,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:19,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:17:19,952 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:17:19,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076545975] [2023-11-19 05:17:19,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076545975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:19,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:19,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:19,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125958509] [2023-11-19 05:17:19,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:19,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:17:19,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:17:19,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:17:19,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:17:19,991 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.625) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:20,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:20,010 INFO L93 Difference]: Finished difference Result 82 states and 128 transitions. [2023-11-19 05:17:20,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:17:20,013 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-19 05:17:20,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:20,021 INFO L225 Difference]: With dead ends: 82 [2023-11-19 05:17:20,021 INFO L226 Difference]: Without dead ends: 39 [2023-11-19 05:17:20,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:17:20,027 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:20,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:17:20,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-19 05:17:20,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-19 05:17:20,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.131578947368421) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2023-11-19 05:17:20,062 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 15 [2023-11-19 05:17:20,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:20,062 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2023-11-19 05:17:20,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:20,063 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2023-11-19 05:17:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 05:17:20,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:20,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:20,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:17:20,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:20,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:20,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:20,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1291452088, now seen corresponding path program 1 times [2023-11-19 05:17:20,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:17:20,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6506328] [2023-11-19 05:17:20,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:20,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:20,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:17:20,273 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:17:20,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:17:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:20,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 05:17:20,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:20,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:20,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:17:20,660 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:17:20,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6506328] [2023-11-19 05:17:20,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6506328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:20,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:20,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:17:20,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418130478] [2023-11-19 05:17:20,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:20,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:17:20,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:17:20,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:17:20,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:17:20,665 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:20,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:20,966 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2023-11-19 05:17:20,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:17:20,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-19 05:17:20,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:20,968 INFO L225 Difference]: With dead ends: 54 [2023-11-19 05:17:20,968 INFO L226 Difference]: Without dead ends: 26 [2023-11-19 05:17:20,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:17:20,970 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 19 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:20,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 73 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:17:20,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-19 05:17:20,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-19 05:17:20,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:20,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-11-19 05:17:20,980 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2023-11-19 05:17:20,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:20,980 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-11-19 05:17:20,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:20,981 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2023-11-19 05:17:20,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 05:17:20,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:20,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:20,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 05:17:21,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:21,186 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:21,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:21,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1647807069, now seen corresponding path program 1 times [2023-11-19 05:17:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:17:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012719398] [2023-11-19 05:17:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:21,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:21,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:17:21,195 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:17:21,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 05:17:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:21,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:17:21,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:21,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:17:21,424 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:17:21,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012719398] [2023-11-19 05:17:21,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012719398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:21,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:21,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:17:21,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124720560] [2023-11-19 05:17:21,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:21,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:21,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:17:21,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:21,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:21,427 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:21,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:21,447 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2023-11-19 05:17:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:21,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-19 05:17:21,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:21,449 INFO L225 Difference]: With dead ends: 29 [2023-11-19 05:17:21,449 INFO L226 Difference]: Without dead ends: 26 [2023-11-19 05:17:21,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:21,451 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:21,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:17:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-19 05:17:21,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-19 05:17:21,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:21,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2023-11-19 05:17:21,458 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 19 [2023-11-19 05:17:21,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:21,459 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2023-11-19 05:17:21,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:21,459 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2023-11-19 05:17:21,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 05:17:21,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:21,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:21,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:17:21,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:21,666 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:21,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1322743609, now seen corresponding path program 1 times [2023-11-19 05:17:21,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:17:21,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832902355] [2023-11-19 05:17:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:21,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:21,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:17:21,669 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:17:21,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 05:17:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:21,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 05:17:21,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:22,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 05:17:22,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 30 [2023-11-19 05:17:22,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:22,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:17:22,427 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:17:22,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832902355] [2023-11-19 05:17:22,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832902355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:22,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:22,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 05:17:22,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374192372] [2023-11-19 05:17:22,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:22,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 05:17:22,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:17:22,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 05:17:22,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:17:22,430 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:23,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:23,132 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2023-11-19 05:17:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:17:23,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-19 05:17:23,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:23,135 INFO L225 Difference]: With dead ends: 30 [2023-11-19 05:17:23,135 INFO L226 Difference]: Without dead ends: 26 [2023-11-19 05:17:23,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:17:23,137 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:23,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 77 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:17:23,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-19 05:17:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-19 05:17:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2023-11-19 05:17:23,143 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 21 [2023-11-19 05:17:23,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:23,144 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2023-11-19 05:17:23,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:23,144 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2023-11-19 05:17:23,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 05:17:23,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:23,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:23,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:17:23,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:23,346 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:23,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:23,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1202751826, now seen corresponding path program 1 times [2023-11-19 05:17:23,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:17:23,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698835105] [2023-11-19 05:17:23,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:23,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:23,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:17:23,350 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:17:23,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 05:17:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:23,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 05:17:23,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:23,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 05:17:23,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 30 [2023-11-19 05:17:24,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:24,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:17:24,570 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:17:24,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698835105] [2023-11-19 05:17:24,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1698835105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:24,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:24,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 05:17:24,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072370223] [2023-11-19 05:17:24,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:24,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:17:24,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:17:24,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:17:24,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:17:24,573 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:26,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:26,343 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2023-11-19 05:17:26,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 05:17:26,344 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-19 05:17:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:26,344 INFO L225 Difference]: With dead ends: 26 [2023-11-19 05:17:26,344 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:17:26,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2023-11-19 05:17:26,346 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 32 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:26,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 93 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:17:26,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:17:26,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:17:26,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:26,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:17:26,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2023-11-19 05:17:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:26,348 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:17:26,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:26,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:17:26,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:17:26,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:17:26,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:17:26,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:17:26,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:17:26,932 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 27 31) no Hoare annotation was computed. [2023-11-19 05:17:26,933 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 31) the Hoare annotation is: false [2023-11-19 05:17:26,933 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 31) no Hoare annotation was computed. [2023-11-19 05:17:26,933 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2023-11-19 05:17:26,933 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_modf_float_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) [2023-11-19 05:17:26,933 INFO L899 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2023-11-19 05:17:26,933 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 99 117) no Hoare annotation was computed. [2023-11-19 05:17:26,934 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 05:17:26,934 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2023-11-19 05:17:26,934 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_modf_float_~i0~0#1|) ((_ extract 30 23) |ULTIMATE.start_modf_float_~i0~0#1|) ((_ extract 22 0) |ULTIMATE.start_modf_float_~i0~0#1|)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_modf_float_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) (exists ((v_subst_1 (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) v_subst_1) ((_ extract 30 23) v_subst_1) ((_ extract 22 0) v_subst_1)))) (= (bvand (_ bv255 32) (bvashr v_subst_1 (_ bv23 32))) (bvadd (_ bv127 32) |ULTIMATE.start_modf_float_~j0~0#1|))))) [2023-11-19 05:17:26,934 INFO L899 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2023-11-19 05:17:26,934 INFO L899 garLoopResultBuilder]: For program point L111-1(line 111) no Hoare annotation was computed. [2023-11-19 05:17:26,934 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2023-11-19 05:17:26,935 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19#1| (exists ((currentRoundingMode RoundingMode) (v_arrayElimCell_2 (_ BitVec 32))) (and (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (= (let ((.cse0 (bvand v_arrayElimCell_2 (_ bv2147483648 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) |ULTIMATE.start___signbit_float_~x#1|))) (exists ((currentRoundingMode RoundingMode) (v_arrayElimCell_2 (_ BitVec 32))) (and (= (let ((.cse1 (bvand v_arrayElimCell_2 (_ bv2147483648 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) |ULTIMATE.start_main_~res~0#1|) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))))) (exists ((currentRoundingMode RoundingMode) (v_arrayElimCell_2 (_ BitVec 32))) (and (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (= (let ((.cse2 (bvand v_arrayElimCell_2 (_ bv2147483648 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) |ULTIMATE.start_modf_float_#res#1|)))) [2023-11-19 05:17:26,935 INFO L899 garLoopResultBuilder]: For program point L111-3(line 111) no Hoare annotation was computed. [2023-11-19 05:17:26,935 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2023-11-19 05:17:26,935 INFO L899 garLoopResultBuilder]: For program point L111-5(lines 111 114) no Hoare annotation was computed. [2023-11-19 05:17:26,935 INFO L899 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2023-11-19 05:17:26,935 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:17:26,935 INFO L899 garLoopResultBuilder]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2023-11-19 05:17:26,936 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 42) the Hoare annotation is: false [2023-11-19 05:17:26,936 INFO L899 garLoopResultBuilder]: For program point __signbit_float_returnLabel#1(lines 75 85) no Hoare annotation was computed. [2023-11-19 05:17:26,936 INFO L899 garLoopResultBuilder]: For program point isinf_float_returnLabel#1(lines 88 97) no Hoare annotation was computed. [2023-11-19 05:17:26,936 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 05:17:26,936 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2023-11-19 05:17:26,937 INFO L895 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode) (v_arrayElimCell_2 (_ BitVec 32))) (and (= (let ((.cse0 (bvand v_arrayElimCell_2 (_ bv2147483648 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) |ULTIMATE.start_main_~res~0#1|) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))))) (exists ((currentRoundingMode RoundingMode) (v_arrayElimCell_2 (_ BitVec 32))) (and (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (= (let ((.cse1 (bvand v_arrayElimCell_2 (_ bv2147483648 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) |ULTIMATE.start_modf_float_#res#1|)))) [2023-11-19 05:17:26,937 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2023-11-19 05:17:26,937 INFO L899 garLoopResultBuilder]: For program point L90-3(lines 90 94) no Hoare annotation was computed. [2023-11-19 05:17:26,937 INFO L899 garLoopResultBuilder]: For program point modf_float_returnLabel#1(lines 16 73) no Hoare annotation was computed. [2023-11-19 05:17:26,937 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-11-19 05:17:26,938 INFO L895 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_modf_float_~i0~0#1|) ((_ extract 30 23) |ULTIMATE.start_modf_float_~i0~0#1|) ((_ extract 22 0) |ULTIMATE.start_modf_float_~i0~0#1|)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) (exists ((|v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11|) (_ bv0 32)))) (and (= .cse0 |ULTIMATE.start_modf_float_~ix~1#1|) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_modf_float_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) (exists ((v_subst_1 (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) v_subst_1) ((_ extract 30 23) v_subst_1) ((_ extract 22 0) v_subst_1)))) (= (bvand (_ bv255 32) (bvashr v_subst_1 (_ bv23 32))) (bvadd (_ bv127 32) |ULTIMATE.start_modf_float_~j0~0#1|))))) [2023-11-19 05:17:26,938 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:17:26,938 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2023-11-19 05:17:26,938 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 72) no Hoare annotation was computed. [2023-11-19 05:17:26,938 INFO L899 garLoopResultBuilder]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2023-11-19 05:17:26,938 INFO L895 garLoopResultBuilder]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2023-11-19 05:17:26,938 INFO L899 garLoopResultBuilder]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2023-11-19 05:17:26,938 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 57) no Hoare annotation was computed. [2023-11-19 05:17:26,939 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 47) no Hoare annotation was computed. [2023-11-19 05:17:26,939 INFO L895 garLoopResultBuilder]: At program point L43-1(lines 43 47) the Hoare annotation is: false [2023-11-19 05:17:26,939 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 47) no Hoare annotation was computed. [2023-11-19 05:17:26,939 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 56) no Hoare annotation was computed. [2023-11-19 05:17:26,949 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 05:17:26,953 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:17:26,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated [2023-11-19 05:17:26,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp~32(~i0~0[31:31], ~i0~0[30:23], ~i0~0[22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated [2023-11-19 05:17:26,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11 : bv32, currentRoundingMode : FloatRoundingMode :: #memory_int[v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11][0bv32] == ~ix~1 && ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11][0bv32][31:31], #memory_int[v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11][0bv32][30:23], #memory_int[v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11][0bv32][22:0])) could not be translated [2023-11-19 05:17:26,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated [2023-11-19 05:17:26,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0])) && ~bvand~32(255bv32, ~bvashr~32(v_subst_1, 23bv32)) == ~bvadd~32(127bv32, ~j0~0)) could not be translated [2023-11-19 05:17:26,972 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-19 05:17:26,972 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0]) && ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == ~x) could not be translated [2023-11-19 05:17:26,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == ~res~0 && ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0])) could not be translated [2023-11-19 05:17:26,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0]) && ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == #res) could not be translated [2023-11-19 05:17:26,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == ~res~0 && ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0])) could not be translated [2023-11-19 05:17:26,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0]) && ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == #res) could not be translated [2023-11-19 05:17:26,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp~32(~i0~0[31:31], ~i0~0[30:23], ~i0~0[22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated [2023-11-19 05:17:26,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated [2023-11-19 05:17:26,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0])) && ~bvand~32(255bv32, ~bvashr~32(v_subst_1, 23bv32)) == ~bvadd~32(127bv32, ~j0~0)) could not be translated [2023-11-19 05:17:26,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:17:26 BoogieIcfgContainer [2023-11-19 05:17:26,975 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:17:26,976 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:17:26,976 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:17:26,976 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:17:26,976 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:19" (3/4) ... [2023-11-19 05:17:26,979 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:17:26,990 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-19 05:17:26,990 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 05:17:26,991 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 05:17:26,991 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:17:27,092 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:17:27,092 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:17:27,092 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:17:27,093 INFO L158 Benchmark]: Toolchain (without parser) took 8788.61ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 74.0MB in the beginning and 74.8MB in the end (delta: -880.6kB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-11-19 05:17:27,094 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 64.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:27,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.46ms. Allocated memory is still 98.6MB. Free memory was 73.7MB in the beginning and 61.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:17:27,095 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.29ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 59.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:27,095 INFO L158 Benchmark]: Boogie Preprocessor took 85.52ms. Allocated memory is still 98.6MB. Free memory was 59.2MB in the beginning and 57.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:27,095 INFO L158 Benchmark]: RCFGBuilder took 713.56ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 67.7MB in the end (delta: -10.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-11-19 05:17:27,096 INFO L158 Benchmark]: TraceAbstraction took 7400.67ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.7MB in the beginning and 80.1MB in the end (delta: -13.4MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-11-19 05:17:27,096 INFO L158 Benchmark]: Witness Printer took 117.02ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 74.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:17:27,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 64.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.46ms. Allocated memory is still 98.6MB. Free memory was 73.7MB in the beginning and 61.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.29ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 59.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.52ms. Allocated memory is still 98.6MB. Free memory was 59.2MB in the beginning and 57.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 713.56ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 67.7MB in the end (delta: -10.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7400.67ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.7MB in the beginning and 80.1MB in the end (delta: -13.4MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Witness Printer took 117.02ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 74.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp~32(~i0~0[31:31], ~i0~0[30:23], ~i0~0[22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11 : bv32, currentRoundingMode : FloatRoundingMode :: #memory_int[v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11][0bv32] == ~ix~1 && ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11][0bv32][31:31], #memory_int[v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11][0bv32][30:23], #memory_int[v_ULTIMATE.start_modf_float_~#gf_u~2#1.base_11][0bv32][22:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0])) && ~bvand~32(255bv32, ~bvashr~32(v_subst_1, 23bv32)) == ~bvadd~32(127bv32, ~j0~0)) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0]) && ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == ~res~0 && ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0]) && ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == #res) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == ~res~0 && ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode, v_arrayElimCell_2 : bv32 :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0]) && ~fp~32(~bvand~32(v_arrayElimCell_2, 2147483648bv32)[31:31], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[30:23], ~bvand~32(v_arrayElimCell_2, 2147483648bv32)[22:0]) == #res) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp~32(~i0~0[31:31], ~i0~0[30:23], ~i0~0[22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32())) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0])) && ~bvand~32(255bv32, ~bvashr~32(v_subst_1, 23bv32)) == ~bvadd~32(127bv32, ~j0~0)) could not be translated * 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 - PositiveResult [Line: 112]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 337 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 124 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 308 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 159 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 93 ConstructedInterpolants, 38 QuantifiedInterpolants, 986 SizeOfPredicates, 32 NumberOfNonLiveVariables, 463 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-19 05:17:27,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd45b3-68be-4ed2-997a-8258d5f76937/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE