./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5466bf06a7e4128c8eade79479cd5c3b324b73667698a27af81adcadb4a0f58c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:41:43,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:41:43,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:41:43,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:41:43,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:41:43,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:41:43,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:41:43,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:41:43,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:41:43,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:41:43,434 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:41:43,434 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:41:43,435 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:41:43,435 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:41:43,436 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:41:43,437 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:41:43,437 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:41:43,438 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:41:43,438 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:41:43,439 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:41:43,439 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:41:43,440 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:41:43,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:41:43,441 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:41:43,442 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:41:43,442 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:41:43,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:41:43,443 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:41:43,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:41:43,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:41:43,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:41:43,445 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:41:43,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:41:43,446 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:41:43,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:41:43,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:41:43,447 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:41:43,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:41:43,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:41:43,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:41:43,448 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:41:43,448 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:41:43,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:41:43,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:41:43,449 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:41:43,449 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:41:43,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:41:43,449 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_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5466bf06a7e4128c8eade79479cd5c3b324b73667698a27af81adcadb4a0f58c [2023-12-02 15:41:43,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:41:43,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:41:43,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:41:43,748 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:41:43,749 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:41:43,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i [2023-12-02 15:41:46,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:41:46,833 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:41:46,834 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i [2023-12-02 15:41:46,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/data/863f899b9/dd4b8c83a1644467aefc4af37e1da344/FLAGbcfc40cf3 [2023-12-02 15:41:46,865 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/data/863f899b9/dd4b8c83a1644467aefc4af37e1da344 [2023-12-02 15:41:46,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:41:46,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:41:46,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:41:46,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:41:46,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:41:46,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:41:46" (1/1) ... [2023-12-02 15:41:46,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@91050c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:46, skipping insertion in model container [2023-12-02 15:41:46,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:41:46" (1/1) ... [2023-12-02 15:41:46,929 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:41:47,093 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_d3229912-8769-4439-a030-7263c110e9ff/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i[916,929] [2023-12-02 15:41:47,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:41:47,198 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:41:47,213 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_d3229912-8769-4439-a030-7263c110e9ff/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i[916,929] [2023-12-02 15:41:47,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:41:47,279 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:41:47,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47 WrapperNode [2023-12-02 15:41:47,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:41:47,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:41:47,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:41:47,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:41:47,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,358 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 168 [2023-12-02 15:41:47,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:41:47,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:41:47,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:41:47,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:41:47,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:41:47,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:41:47,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:41:47,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:41:47,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (1/1) ... [2023-12-02 15:41:47,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:41:47,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:41:47,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:41:47,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:41:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:41:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:41:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:41:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:41:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:41:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:41:47,587 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:41:47,590 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:41:48,032 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:41:48,330 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:41:48,330 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:41:48,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:41:48 BoogieIcfgContainer [2023-12-02 15:41:48,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:41:48,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:41:48,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:41:48,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:41:48,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:41:46" (1/3) ... [2023-12-02 15:41:48,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e996fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:41:48, skipping insertion in model container [2023-12-02 15:41:48,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:47" (2/3) ... [2023-12-02 15:41:48,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e996fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:41:48, skipping insertion in model container [2023-12-02 15:41:48,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:41:48" (3/3) ... [2023-12-02 15:41:48,343 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-38.i [2023-12-02 15:41:48,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:41:48,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:41:48,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:41:48,432 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;@7bdd5042, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:41:48,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:41:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 15:41:48,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 15:41:48,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:41:48,450 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:41:48,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:41:48,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:41:48,457 INFO L85 PathProgramCache]: Analyzing trace with hash -573928216, now seen corresponding path program 1 times [2023-12-02 15:41:48,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:41:48,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763648381] [2023-12-02 15:41:48,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:41:48,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:41:48,642 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:41:48,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286019273] [2023-12-02 15:41:48,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:41:48,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:41:48,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:41:48,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:41:48,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:41:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:41:49,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:41:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:41:49,306 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:41:49,309 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:41:49,310 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:41:49,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:41:49,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 15:41:49,516 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:41:49,519 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:41:49,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:41:49 BoogieIcfgContainer [2023-12-02 15:41:49,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:41:49,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:41:49,598 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:41:49,598 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:41:49,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:41:48" (3/4) ... [2023-12-02 15:41:49,601 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:41:49,602 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:41:49,604 INFO L158 Benchmark]: Toolchain (without parser) took 2734.14ms. Allocated memory is still 146.8MB. Free memory was 117.6MB in the beginning and 60.3MB in the end (delta: 57.3MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2023-12-02 15:41:49,604 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 146.8MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:41:49,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.20ms. Allocated memory is still 146.8MB. Free memory was 117.0MB in the beginning and 100.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 15:41:49,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.08ms. Allocated memory is still 146.8MB. Free memory was 100.8MB in the beginning and 96.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:41:49,607 INFO L158 Benchmark]: Boogie Preprocessor took 60.00ms. Allocated memory is still 146.8MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:41:49,608 INFO L158 Benchmark]: RCFGBuilder took 913.19ms. Allocated memory is still 146.8MB. Free memory was 93.9MB in the beginning and 102.2MB in the end (delta: -8.3MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2023-12-02 15:41:49,608 INFO L158 Benchmark]: TraceAbstraction took 1261.54ms. Allocated memory is still 146.8MB. Free memory was 101.5MB in the beginning and 60.3MB in the end (delta: 41.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-12-02 15:41:49,609 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 146.8MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:41:49,612 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 146.8MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.20ms. Allocated memory is still 146.8MB. Free memory was 117.0MB in the beginning and 100.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.08ms. Allocated memory is still 146.8MB. Free memory was 100.8MB in the beginning and 96.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.00ms. Allocated memory is still 146.8MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 913.19ms. Allocated memory is still 146.8MB. Free memory was 93.9MB in the beginning and 102.2MB in the end (delta: -8.3MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1261.54ms. Allocated memory is still 146.8MB. Free memory was 101.5MB in the beginning and 60.3MB in the end (delta: 41.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 146.8MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 57, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryArithmeticFLOAToperation at line 129. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 200; [L23] unsigned short int var_1_5 = 42139; [L24] unsigned short int var_1_7 = 1; [L25] double var_1_9 = 0.1; [L26] float var_1_12 = 10000000000.5; [L27] float var_1_13 = 255.6; [L28] float var_1_14 = 128.2; [L29] signed long int var_1_15 = 500; [L30] unsigned char var_1_16 = 0; [L31] unsigned char var_1_17 = 0; [L32] unsigned char var_1_18 = 0; [L33] signed char var_1_19 = -5; [L34] signed char var_1_20 = -1; [L35] signed char var_1_21 = 8; [L36] float var_1_22 = 3.75; [L37] signed short int var_1_23 = 10; [L38] unsigned long int var_1_24 = 8; [L39] unsigned char var_1_25 = 5; [L40] unsigned char var_1_26 = 50; [L41] float var_1_27 = 4.5; [L42] unsigned short int var_1_28 = 5; [L43] unsigned long int var_1_29 = 50; [L44] double var_1_30 = 3.5; [L45] unsigned char var_1_31 = 1; [L46] float last_1_var_1_12 = 10000000000.5; [L47] signed short int last_1_var_1_23 = 10; [L48] unsigned long int last_1_var_1_24 = 8; [L49] unsigned char last_1_var_1_25 = 5; [L50] unsigned long int last_1_var_1_29 = 50; [L51] unsigned char last_1_var_1_31 = 1; [L183] isInitial = 1 [L184] FCALL initially() [L185] COND TRUE 1 [L186] CALL updateLastVariables() [L171] last_1_var_1_12 = var_1_12 [L172] last_1_var_1_23 = var_1_23 [L173] last_1_var_1_24 = var_1_24 [L174] last_1_var_1_25 = var_1_25 [L175] last_1_var_1_29 = var_1_29 [L176] last_1_var_1_31 = var_1_31 [L186] RET updateLastVariables() [L187] CALL updateVariables() [L144] var_1_5 = __VERIFIER_nondet_ushort() [L145] CALL assume_abort_if_not(var_1_5 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_13=1278/5, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1, var_1_9=1/10] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_5 >= 32767) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_13=1278/5, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1, var_1_9=1/10] [L146] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_13=1278/5, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1, var_1_9=1/10] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_13=1278/5, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1, var_1_9=1/10] [L147] var_1_9 = __VERIFIER_nondet_double() [L148] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_13=1278/5, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_13=1278/5, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L149] CALL assume_abort_if_not(var_1_9 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_13=1278/5, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_9 != 0.0F) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_13=1278/5, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L150] var_1_13 = __VERIFIER_nondet_float() [L151] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_14=641/5, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L152] var_1_14 = __VERIFIER_nondet_float() [L153] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L154] var_1_17 = __VERIFIER_nondet_uchar() [L155] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L156] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L157] var_1_18 = __VERIFIER_nondet_uchar() [L158] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L159] CALL assume_abort_if_not(var_1_18 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_18 <= 0) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=-1, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L160] var_1_20 = __VERIFIER_nondet_char() [L161] CALL assume_abort_if_not(var_1_20 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_20 >= -127) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L162] CALL assume_abort_if_not(var_1_20 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_20 <= 126) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=8, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L163] var_1_21 = __VERIFIER_nondet_char() [L164] CALL assume_abort_if_not(var_1_21 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=0, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_21 >= -127) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=0, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L165] CALL assume_abort_if_not(var_1_21 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=0, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_21 <= 126) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=0, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=50, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L166] var_1_26 = __VERIFIER_nondet_uchar() [L167] CALL assume_abort_if_not(var_1_26 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=0, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_26 >= 0) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=0, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L168] CALL assume_abort_if_not(var_1_26 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=0, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=0, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_26 <= 254) VAL [isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=20000000001/2, var_1_15=500, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-5, var_1_1=200, var_1_20=0, var_1_21=0, var_1_22=15/4, var_1_23=10, var_1_24=8, var_1_25=5, var_1_26=0, var_1_27=9/2, var_1_28=5, var_1_29=50, var_1_30=7/2, var_1_31=1, var_1_5=65534, var_1_7=1] [L187] RET updateVariables() [L188] CALL step() [L55] unsigned short int stepLocal_1 = var_1_5; [L56] unsigned long int stepLocal_0 = (last_1_var_1_25 + last_1_var_1_23) + (last_1_var_1_29 / var_1_5); [L57] COND TRUE (last_1_var_1_12 / var_1_9) != last_1_var_1_12 [L58] COND FALSE !(var_1_9 >= last_1_var_1_12) [L61] COND FALSE !(stepLocal_1 <= last_1_var_1_25) [L72] var_1_7 = last_1_var_1_25 [L78] COND FALSE !(\read(var_1_18)) [L81] COND TRUE \read(var_1_17) [L82] COND FALSE !(((((var_1_29) > (var_1_5)) ? (var_1_29) : (var_1_5))) < ((((4) < 0 ) ? -(4) : (4)))) [L86] var_1_19 = ((((var_1_20) > (var_1_21)) ? (var_1_20) : (var_1_21))) [L87] var_1_30 = var_1_14 [L88] var_1_31 = var_1_17 [L89] COND FALSE !(var_1_13 != 4.5f) [L96] var_1_16 = (var_1_18 || (! var_1_17)) [L98] COND TRUE var_1_16 || var_1_17 [L99] var_1_22 = ((((var_1_14) > (var_1_13)) ? (var_1_14) : (var_1_13))) [L101] COND TRUE \read(var_1_31) [L102] var_1_25 = (4 + 8) [L106] COND TRUE var_1_13 != var_1_22 [L107] var_1_28 = var_1_25 [L111] COND FALSE !(\read(var_1_16)) [L114] var_1_1 = (((((var_1_5 - var_1_25)) < ((var_1_25 + (256 + 1)))) ? ((var_1_5 - var_1_25)) : ((var_1_25 + (256 + 1))))) [L116] unsigned short int stepLocal_3 = var_1_5; [L117] COND TRUE stepLocal_3 >= ((((var_1_25) < (var_1_7)) ? (var_1_25) : (var_1_7))) [L118] COND TRUE ! var_1_16 [L119] var_1_15 = var_1_25 [L122] COND FALSE !(var_1_16 || var_1_18) [L125] var_1_24 = ((((2u) > (100u)) ? (2u) : (100u))) [L127] signed long int stepLocal_2 = ((((-64) < (var_1_28)) ? (-64) : (var_1_28))) + (var_1_25 << 1); [L128] COND TRUE stepLocal_2 < var_1_7 [L129] var_1_12 = (((((var_1_13 - 128.9f)) < (var_1_14)) ? ((var_1_13 - 128.9f)) : (var_1_14))) [L131] COND TRUE var_1_1 != var_1_25 [L132] COND TRUE var_1_23 >= -128 [L133] COND FALSE !(var_1_30 != ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))) [L136] var_1_27 = ((((0.8f) > (var_1_13)) ? (0.8f) : (var_1_13))) [L188] RET step() [L189] CALL, EXPR property() [L179-L180] return ((((((((((((((var_1_16 ? (var_1_1 == ((unsigned short int) (((((var_1_25 + var_1_25)) < ((var_1_5 - ((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25)))))) ? ((var_1_25 + var_1_25)) : ((var_1_5 - ((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25))))))))) : (var_1_1 == ((unsigned short int) (((((var_1_5 - var_1_25)) < ((var_1_25 + (256 + 1)))) ? ((var_1_5 - var_1_25)) : ((var_1_25 + (256 + 1)))))))) && (((last_1_var_1_12 / var_1_9) != last_1_var_1_12) ? ((var_1_9 >= last_1_var_1_12) ? (var_1_7 == ((unsigned short int) last_1_var_1_25)) : ((var_1_5 <= last_1_var_1_25) ? ((last_1_var_1_25 < ((last_1_var_1_25 + last_1_var_1_23) + (last_1_var_1_29 / var_1_5))) ? (last_1_var_1_31 ? (var_1_7 == ((unsigned short int) 5)) : (var_1_7 == ((unsigned short int) last_1_var_1_25))) : (var_1_7 == ((unsigned short int) last_1_var_1_25))) : (var_1_7 == ((unsigned short int) last_1_var_1_25)))) : (var_1_7 == ((unsigned short int) var_1_5)))) && (((((((-64) < (var_1_28)) ? (-64) : (var_1_28))) + (var_1_25 << 1)) < var_1_7) ? (var_1_12 == ((float) (((((var_1_13 - 128.9f)) < (var_1_14)) ? ((var_1_13 - 128.9f)) : (var_1_14))))) : 1)) && ((var_1_5 >= ((((var_1_25) < (var_1_7)) ? (var_1_25) : (var_1_7)))) ? ((! var_1_16) ? (var_1_15 == ((signed long int) var_1_25)) : 1) : 1)) && ((var_1_13 != 4.5f) ? (var_1_31 ? (var_1_16 == ((unsigned char) var_1_17)) : (var_1_16 == ((unsigned char) (! 0)))) : (var_1_16 == ((unsigned char) (var_1_18 || (! var_1_17)))))) && (var_1_19 == ((signed char) ((((var_1_20) > (var_1_21)) ? (var_1_20) : (var_1_21)))))) && ((var_1_16 || var_1_17) ? (var_1_22 == ((float) ((((var_1_14) > (var_1_13)) ? (var_1_14) : (var_1_13))))) : 1)) && (var_1_17 ? ((((((var_1_29) > (var_1_5)) ? (var_1_29) : (var_1_5))) < ((((4) < 0 ) ? -(4) : (4)))) ? (var_1_23 == ((signed short int) var_1_20)) : 1) : 1)) && ((var_1_16 || var_1_18) ? (var_1_24 == ((unsigned long int) ((((last_1_var_1_24) > (var_1_25)) ? (last_1_var_1_24) : (var_1_25))))) : (var_1_24 == ((unsigned long int) ((((2u) > (100u)) ? (2u) : (100u))))))) && (var_1_31 ? (var_1_25 == ((unsigned char) (4 + 8))) : (var_1_25 == ((unsigned char) ((((var_1_26) < 0 ) ? -(var_1_26) : (var_1_26))))))) && ((var_1_1 != var_1_25) ? ((var_1_23 >= -128) ? ((var_1_30 != ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))) ? (var_1_27 == ((float) (var_1_13 - (99999.4f + 9.999999999125E9f)))) : (var_1_27 == ((float) ((((0.8f) > (var_1_13)) ? (0.8f) : (var_1_13)))))) : 1) : (var_1_27 == ((float) var_1_14)))) && ((var_1_13 != var_1_22) ? (var_1_28 == ((unsigned short int) var_1_25)) : (var_1_28 == ((unsigned short int) (var_1_5 - 10))))) && (var_1_18 ? (var_1_29 == ((unsigned long int) (((((var_1_7 + 100000000u)) > (var_1_26)) ? ((var_1_7 + 100000000u)) : (var_1_26))))) : 1)) && (var_1_30 == ((double) var_1_14))) && (var_1_31 == ((unsigned char) var_1_17)) ; [L189] RET, EXPR property() [L189] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=2, var_1_13=0, var_1_14=3, var_1_15=12, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=269, var_1_20=0, var_1_21=0, var_1_22=3, var_1_23=10, var_1_24=100, var_1_25=12, var_1_26=0, var_1_27=4/5, var_1_28=12, var_1_29=50, var_1_30=3, var_1_31=1, var_1_5=65534, var_1_7=5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=20000000001/2, last_1_var_1_23=10, last_1_var_1_24=8, last_1_var_1_25=5, last_1_var_1_29=50, last_1_var_1_31=1, var_1_12=2, var_1_13=0, var_1_14=3, var_1_15=12, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=269, var_1_20=0, var_1_21=0, var_1_22=3, var_1_23=10, var_1_24=100, var_1_25=12, var_1_26=0, var_1_27=4/5, var_1_28=12, var_1_29=50, var_1_30=3, var_1_31=1, var_1_5=65534, var_1_7=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 15:41:49,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5466bf06a7e4128c8eade79479cd5c3b324b73667698a27af81adcadb4a0f58c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:41:51,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:41:51,949 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 15:41:51,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:41:51,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:41:51,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:41:51,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:41:51,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:41:51,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:41:51,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:41:51,988 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:41:51,989 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:41:51,989 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:41:51,990 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:41:51,990 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:41:51,991 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:41:51,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:41:51,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:41:51,993 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:41:51,994 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:41:51,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:41:51,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:41:51,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:41:51,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:41:51,999 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:41:52,000 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:41:52,000 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:41:52,001 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:41:52,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:41:52,001 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:41:52,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:41:52,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:41:52,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:41:52,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:41:52,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:41:52,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:41:52,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:41:52,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:41:52,004 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:41:52,005 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:41:52,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:41:52,005 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:41:52,006 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:41:52,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:41:52,006 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_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5466bf06a7e4128c8eade79479cd5c3b324b73667698a27af81adcadb4a0f58c [2023-12-02 15:41:52,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:41:52,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:41:52,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:41:52,350 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:41:52,350 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:41:52,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i [2023-12-02 15:41:55,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:41:55,565 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:41:55,566 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i [2023-12-02 15:41:55,578 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/data/a173ac8b2/07eae59300b249dbb242c0dd130de6eb/FLAGd7ffb8390 [2023-12-02 15:41:55,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/data/a173ac8b2/07eae59300b249dbb242c0dd130de6eb [2023-12-02 15:41:55,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:41:55,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:41:55,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:41:55,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:41:55,610 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:41:55,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:41:55" (1/1) ... [2023-12-02 15:41:55,612 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149b15e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:55, skipping insertion in model container [2023-12-02 15:41:55,612 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:41:55" (1/1) ... [2023-12-02 15:41:55,658 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:41:55,842 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_d3229912-8769-4439-a030-7263c110e9ff/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i[916,929] [2023-12-02 15:41:55,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:41:55,959 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:41:55,975 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_d3229912-8769-4439-a030-7263c110e9ff/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-38.i[916,929] [2023-12-02 15:41:56,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:41:56,052 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:41:56,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56 WrapperNode [2023-12-02 15:41:56,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:41:56,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:41:56,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:41:56,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:41:56,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,120 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 166 [2023-12-02 15:41:56,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:41:56,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:41:56,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:41:56,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:41:56,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,169 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:41:56,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:41:56,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:41:56,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:41:56,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (1/1) ... [2023-12-02 15:41:56,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:41:56,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:41:56,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:41:56,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:41:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:41:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:41:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:41:56,287 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:41:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:41:56,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:41:56,382 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:41:56,385 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:42:05,013 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:42:05,071 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:42:05,072 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:42:05,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:42:05 BoogieIcfgContainer [2023-12-02 15:42:05,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:42:05,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:42:05,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:42:05,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:42:05,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:41:55" (1/3) ... [2023-12-02 15:42:05,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb1a990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:42:05, skipping insertion in model container [2023-12-02 15:42:05,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:56" (2/3) ... [2023-12-02 15:42:05,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb1a990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:42:05, skipping insertion in model container [2023-12-02 15:42:05,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:42:05" (3/3) ... [2023-12-02 15:42:05,084 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-38.i [2023-12-02 15:42:05,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:42:05,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:42:05,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:42:05,165 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;@2f74746, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:42:05,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:42:05,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 44 states have internal predecessors, (69), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 15:42:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 15:42:05,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:42:05,183 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:42:05,183 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:42:05,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:42:05,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1878883737, now seen corresponding path program 1 times [2023-12-02 15:42:05,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:42:05,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20749302] [2023-12-02 15:42:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:05,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:42:05,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:42:05,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:42:05,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 15:42:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:06,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 15:42:06,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:06,526 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-12-02 15:42:06,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:42:06,527 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:42:06,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20749302] [2023-12-02 15:42:06,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20749302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:42:06,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:42:06,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:42:06,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413845498] [2023-12-02 15:42:06,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:42:06,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:42:06,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:42:06,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:42:06,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:42:06,573 INFO L87 Difference]: Start difference. First operand has 62 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 44 states have internal predecessors, (69), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 15:42:10,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:10,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:42:10,383 INFO L93 Difference]: Finished difference Result 121 states and 216 transitions. [2023-12-02 15:42:10,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:42:10,843 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 109 [2023-12-02 15:42:10,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:42:10,851 INFO L225 Difference]: With dead ends: 121 [2023-12-02 15:42:10,851 INFO L226 Difference]: Without dead ends: 60 [2023-12-02 15:42:10,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:42:10,858 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:42:10,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2023-12-02 15:42:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-02 15:42:10,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-12-02 15:42:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 42 states have internal predecessors, (64), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 15:42:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 96 transitions. [2023-12-02 15:42:10,911 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 96 transitions. Word has length 109 [2023-12-02 15:42:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:42:10,912 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 96 transitions. [2023-12-02 15:42:10,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 15:42:10,912 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 96 transitions. [2023-12-02 15:42:10,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 15:42:10,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:42:10,916 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:42:10,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-02 15:42:11,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:42:11,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:42:11,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:42:11,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2036010581, now seen corresponding path program 1 times [2023-12-02 15:42:11,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:42:11,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900219068] [2023-12-02 15:42:11,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:11,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:42:11,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:42:11,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:42:11,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 15:42:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:12,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:42:12,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:13,231 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 249 proven. 18 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-12-02 15:42:13,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:42:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 27 proven. 18 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 15:42:14,171 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:42:14,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900219068] [2023-12-02 15:42:14,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900219068] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:42:14,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [546530067] [2023-12-02 15:42:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:14,173 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:42:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:42:14,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:42:14,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 15:42:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:16,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:42:16,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 27 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 15:42:17,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:42:18,961 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 15:42:18,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [546530067] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:42:18,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677022733] [2023-12-02 15:42:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:18,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:42:18,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:42:18,964 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:42:18,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:42:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:21,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:42:21,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 27 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 15:42:22,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:42:23,206 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 15:42:23,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677022733] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:42:23,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 15:42:23,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2023-12-02 15:42:23,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188719902] [2023-12-02 15:42:23,208 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 15:42:23,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 15:42:23,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:42:23,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 15:42:23,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:42:23,211 INFO L87 Difference]: Start difference. First operand 60 states and 96 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-02 15:42:29,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:31,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:33,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:34,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:34,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:42:34,780 INFO L93 Difference]: Finished difference Result 142 states and 218 transitions. [2023-12-02 15:42:34,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 15:42:34,781 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 109 [2023-12-02 15:42:34,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:42:34,785 INFO L225 Difference]: With dead ends: 142 [2023-12-02 15:42:34,785 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 15:42:34,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 638 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2023-12-02 15:42:34,789 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 114 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:42:34,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 194 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 189 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2023-12-02 15:42:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 15:42:34,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2023-12-02 15:42:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 53 states have internal predecessors, (71), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-02 15:42:34,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 115 transitions. [2023-12-02 15:42:34,811 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 115 transitions. Word has length 109 [2023-12-02 15:42:34,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:42:34,812 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 115 transitions. [2023-12-02 15:42:34,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-02 15:42:34,813 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 115 transitions. [2023-12-02 15:42:34,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 15:42:34,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:42:34,816 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:42:34,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-02 15:42:35,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 15:42:35,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 15:42:35,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:42:35,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:42:35,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:42:35,419 INFO L85 PathProgramCache]: Analyzing trace with hash 153536445, now seen corresponding path program 1 times [2023-12-02 15:42:35,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:42:35,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573309179] [2023-12-02 15:42:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:35,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:42:35,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:42:35,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:42:35,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 15:42:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:36,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:42:36,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:40,347 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:42:40,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:42:43,545 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 15:42:43,545 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:42:43,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573309179] [2023-12-02 15:42:43,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573309179] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:42:43,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2084865591] [2023-12-02 15:42:43,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:43,546 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:42:43,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:42:43,548 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:42:43,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 15:42:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:44,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:42:44,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-02 15:42:44,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:42:44,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2084865591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:42:44,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:42:44,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 11 [2023-12-02 15:42:44,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82151155] [2023-12-02 15:42:44,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:42:44,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:42:44,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:42:44,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:42:44,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-12-02 15:42:44,446 INFO L87 Difference]: Start difference. First operand 78 states and 115 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:42:48,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:49,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:42:49,017 INFO L93 Difference]: Finished difference Result 150 states and 217 transitions. [2023-12-02 15:42:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:42:49,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2023-12-02 15:42:49,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:42:49,020 INFO L225 Difference]: With dead ends: 150 [2023-12-02 15:42:49,020 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 15:42:49,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-02 15:42:49,022 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 126 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:42:49,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 154 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2023-12-02 15:42:49,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 15:42:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2023-12-02 15:42:49,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 55 states have (on average 1.309090909090909) internal successors, (72), 56 states have internal predecessors, (72), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-02 15:42:49,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 116 transitions. [2023-12-02 15:42:49,035 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 116 transitions. Word has length 110 [2023-12-02 15:42:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:42:49,035 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 116 transitions. [2023-12-02 15:42:49,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:42:49,036 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 116 transitions. [2023-12-02 15:42:49,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 15:42:49,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:42:49,038 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:42:49,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 15:42:49,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 15:42:49,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:42:49,439 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:42:49,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:42:49,439 INFO L85 PathProgramCache]: Analyzing trace with hash -104628993, now seen corresponding path program 1 times [2023-12-02 15:42:49,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:42:49,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660027632] [2023-12-02 15:42:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:49,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:42:49,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:42:49,441 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:42:49,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 15:42:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:50,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:42:50,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:42:54,342 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:42:57,542 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 15:42:57,542 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:42:57,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660027632] [2023-12-02 15:42:57,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660027632] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:42:57,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1418758160] [2023-12-02 15:42:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:57,543 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:42:57,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:42:57,545 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:42:57,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 15:42:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:58,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:42:58,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:58,718 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-02 15:42:58,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:42:58,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1418758160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:42:58,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:42:58,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2023-12-02 15:42:58,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418446692] [2023-12-02 15:42:58,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:42:58,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:42:58,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:42:58,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:42:58,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-02 15:42:58,722 INFO L87 Difference]: Start difference. First operand 82 states and 116 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:43:03,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:05,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:07,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:43:08,508 INFO L93 Difference]: Finished difference Result 233 states and 321 transitions. [2023-12-02 15:43:08,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:43:08,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2023-12-02 15:43:08,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:43:08,515 INFO L225 Difference]: With dead ends: 233 [2023-12-02 15:43:08,515 INFO L226 Difference]: Without dead ends: 162 [2023-12-02 15:43:08,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-02 15:43:08,517 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 170 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 51 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:43:08,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 242 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 45 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2023-12-02 15:43:08,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-02 15:43:08,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 122. [2023-12-02 15:43:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 85 states have (on average 1.2823529411764707) internal successors, (109), 87 states have internal predecessors, (109), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 15:43:08,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 167 transitions. [2023-12-02 15:43:08,536 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 167 transitions. Word has length 110 [2023-12-02 15:43:08,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:43:08,537 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 167 transitions. [2023-12-02 15:43:08,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:43:08,537 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 167 transitions. [2023-12-02 15:43:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 15:43:08,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:43:08,539 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:43:08,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-02 15:43:08,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 15:43:08,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 15:43:08,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:43:08,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:43:08,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1277351359, now seen corresponding path program 1 times [2023-12-02 15:43:08,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:43:08,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773059038] [2023-12-02 15:43:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:43:08,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:43:08,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:43:08,942 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:43:08,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 15:43:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:43:10,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:43:10,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:43:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:43:14,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:43:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 15:43:17,331 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:43:17,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773059038] [2023-12-02 15:43:17,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773059038] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:43:17,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1042049148] [2023-12-02 15:43:17,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:43:17,332 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:43:17,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:43:17,333 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:43:17,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 15:43:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:43:19,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:43:19,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:43:21,735 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-02 15:43:21,735 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:43:21,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1042049148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:43:21,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:43:21,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5] total 9 [2023-12-02 15:43:21,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931337709] [2023-12-02 15:43:21,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:43:21,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:43:21,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:43:21,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:43:21,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:43:21,738 INFO L87 Difference]: Start difference. First operand 122 states and 167 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:43:25,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:25,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:43:25,351 INFO L93 Difference]: Finished difference Result 233 states and 317 transitions. [2023-12-02 15:43:25,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:43:25,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2023-12-02 15:43:25,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:43:25,823 INFO L225 Difference]: With dead ends: 233 [2023-12-02 15:43:25,823 INFO L226 Difference]: Without dead ends: 122 [2023-12-02 15:43:25,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:43:25,825 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:43:25,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 86 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2023-12-02 15:43:25,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-12-02 15:43:25,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-12-02 15:43:25,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 87 states have internal predecessors, (108), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 15:43:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 166 transitions. [2023-12-02 15:43:25,847 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 166 transitions. Word has length 110 [2023-12-02 15:43:25,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:43:25,848 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 166 transitions. [2023-12-02 15:43:25,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:43:25,848 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 166 transitions. [2023-12-02 15:43:25,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 15:43:25,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:43:25,851 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:43:25,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 15:43:26,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-02 15:43:26,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:43:26,252 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:43:26,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:43:26,252 INFO L85 PathProgramCache]: Analyzing trace with hash 256283005, now seen corresponding path program 1 times [2023-12-02 15:43:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:43:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796921815] [2023-12-02 15:43:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:43:26,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:43:26,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:43:26,254 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:43:26,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-02 15:43:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:43:27,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:43:27,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:43:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:43:29,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:43:31,771 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-02 15:43:31,771 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:43:31,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796921815] [2023-12-02 15:43:31,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796921815] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 15:43:31,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:43:31,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-02 15:43:31,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147207641] [2023-12-02 15:43:31,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:43:31,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:43:31,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:43:31,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:43:31,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:43:31,774 INFO L87 Difference]: Start difference. First operand 122 states and 166 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:43:35,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:43:40,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:43:42,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:43:44,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:46,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:43:48,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:43:48,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:43:48,742 INFO L93 Difference]: Finished difference Result 275 states and 374 transitions. [2023-12-02 15:43:49,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:43:49,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2023-12-02 15:43:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:43:49,229 INFO L225 Difference]: With dead ends: 275 [2023-12-02 15:43:49,229 INFO L226 Difference]: Without dead ends: 164 [2023-12-02 15:43:49,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:43:49,231 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 38 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:43:49,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 219 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 6 Unknown, 0 Unchecked, 16.6s Time] [2023-12-02 15:43:49,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-12-02 15:43:49,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 140. [2023-12-02 15:43:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 105 states have internal predecessors, (130), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 15:43:49,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 188 transitions. [2023-12-02 15:43:49,248 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 188 transitions. Word has length 110 [2023-12-02 15:43:49,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:43:49,249 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 188 transitions. [2023-12-02 15:43:49,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:43:49,249 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 188 transitions. [2023-12-02 15:43:49,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 15:43:49,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:43:49,251 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:43:49,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-02 15:43:49,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:43:49,451 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:43:49,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:43:49,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1352162887, now seen corresponding path program 1 times [2023-12-02 15:43:49,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:43:49,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357007909] [2023-12-02 15:43:49,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:43:49,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:43:49,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:43:49,453 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:43:49,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-02 15:43:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:43:50,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:43:50,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:43:53,256 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:43:53,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:43:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 15:43:55,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:43:55,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357007909] [2023-12-02 15:43:55,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357007909] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:43:55,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1218140783] [2023-12-02 15:43:55,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:43:55,323 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:43:55,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:43:55,324 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:43:55,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 15:43:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:43:58,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 15:43:58,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:44:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:44:00,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:44:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 15:44:02,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1218140783] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:44:02,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639988603] [2023-12-02 15:44:02,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:44:02,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:44:02,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:44:02,272 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:44:02,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 15:44:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:44:04,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:44:04,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:44:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:44:06,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:44:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 15:44:08,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639988603] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:44:08,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 15:44:08,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 12 [2023-12-02 15:44:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928204511] [2023-12-02 15:44:08,134 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 15:44:08,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 15:44:08,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:44:08,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 15:44:08,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-02 15:44:08,137 INFO L87 Difference]: Start difference. First operand 140 states and 188 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2023-12-02 15:44:13,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:15,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:17,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:19,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:21,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:26,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:28,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:30,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:32,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:34,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:36,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:38,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:44,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:46,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:48,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:49,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:44:49,111 INFO L93 Difference]: Finished difference Result 383 states and 497 transitions. [2023-12-02 15:44:49,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 15:44:49,112 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) Word has length 111 [2023-12-02 15:44:49,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:44:49,115 INFO L225 Difference]: With dead ends: 383 [2023-12-02 15:44:49,115 INFO L226 Difference]: Without dead ends: 254 [2023-12-02 15:44:49,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 651 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2023-12-02 15:44:49,117 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 218 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 97 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:44:49,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 302 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 347 Invalid, 15 Unknown, 0 Unchecked, 39.5s Time] [2023-12-02 15:44:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-12-02 15:44:49,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 153. [2023-12-02 15:44:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 113 states have (on average 1.2212389380530972) internal successors, (138), 115 states have internal predecessors, (138), 29 states have call successors, (29), 10 states have call predecessors, (29), 10 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 15:44:49,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 196 transitions. [2023-12-02 15:44:49,150 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 196 transitions. Word has length 111 [2023-12-02 15:44:49,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:44:49,150 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 196 transitions. [2023-12-02 15:44:49,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2023-12-02 15:44:49,151 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 196 transitions. [2023-12-02 15:44:49,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 15:44:49,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:44:49,153 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:44:49,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 15:44:49,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-02 15:44:49,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 15:44:49,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:44:49,754 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:44:49,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:44:49,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1047609182, now seen corresponding path program 1 times [2023-12-02 15:44:49,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:44:49,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446413068] [2023-12-02 15:44:49,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:44:49,755 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:44:49,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:44:49,756 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:44:49,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-02 15:44:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:44:50,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:44:50,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:44:52,738 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-02 15:44:52,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:44:52,739 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:44:52,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446413068] [2023-12-02 15:44:52,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446413068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:44:52,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:44:52,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:44:52,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680675064] [2023-12-02 15:44:52,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:44:52,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:44:52,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:44:52,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:44:52,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:44:52,741 INFO L87 Difference]: Start difference. First operand 153 states and 196 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:44:56,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:56,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:44:56,603 INFO L93 Difference]: Finished difference Result 291 states and 372 transitions. [2023-12-02 15:44:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:44:57,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 112 [2023-12-02 15:44:57,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:44:57,021 INFO L225 Difference]: With dead ends: 291 [2023-12-02 15:44:57,021 INFO L226 Difference]: Without dead ends: 153 [2023-12-02 15:44:57,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:44:57,022 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:44:57,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 84 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2023-12-02 15:44:57,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-12-02 15:44:57,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-12-02 15:44:57,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 115 states have internal predecessors, (136), 29 states have call successors, (29), 10 states have call predecessors, (29), 10 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 15:44:57,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 194 transitions. [2023-12-02 15:44:57,048 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 194 transitions. Word has length 112 [2023-12-02 15:44:57,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:44:57,048 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 194 transitions. [2023-12-02 15:44:57,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 15:44:57,048 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 194 transitions. [2023-12-02 15:44:57,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 15:44:57,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:44:57,050 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:44:57,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-02 15:44:57,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:44:57,250 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:44:57,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:44:57,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1874260178, now seen corresponding path program 1 times [2023-12-02 15:44:57,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:44:57,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798417603] [2023-12-02 15:44:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:44:57,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:44:57,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:44:57,252 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:44:57,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-02 15:44:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:44:58,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 15:44:58,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:45:13,265 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:45:18,322 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:45:29,196 WARN L293 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:45:36,425 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (bvsge .cse0 (_ bv1 32)) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (bvsle .cse0 (_ bv1 32)) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse1 c_~var_1_9~0) .cse1)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-12-02 15:45:38,834 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (bvsge .cse0 (_ bv1 32)) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (bvsle .cse0 (_ bv1 32)) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse1 c_~var_1_9~0) .cse1)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2023-12-02 15:45:48,310 WARN L293 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:45:53,435 WARN L293 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:46:04,263 WARN L293 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:46:09,268 WARN L293 SmtUtils]: Spent 5.00s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:46:18,783 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:46:24,040 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:46:34,975 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:46:44,947 WARN L293 SmtUtils]: Spent 5.00s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:46:59,419 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:47:14,211 WARN L293 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:47:19,276 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:47:24,288 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:47:29,342 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:47:31,579 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse1 (bvugt c_~var_1_29~0 .cse2)) (.cse0 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (bvsge .cse0 (_ bv1 32)) (or .cse1 (not (bvult .cse2 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (or (not .cse1) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (bvsle .cse0 (_ bv1 32)) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse3 c_~var_1_9~0) .cse3)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-02 15:47:33,986 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse1 (bvugt c_~var_1_29~0 .cse2)) (.cse0 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (bvsge .cse0 (_ bv1 32)) (or .cse1 (not (bvult .cse2 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (or (not .cse1) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (bvsle .cse0 (_ bv1 32)) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse3 c_~var_1_9~0) .cse3)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-02 15:47:39,032 WARN L293 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:47:44,127 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:47:53,653 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:47:58,738 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:03,915 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:08,921 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:13,960 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:19,064 WARN L293 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:24,146 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:29,181 WARN L293 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:35,163 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:40,275 WARN L293 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:45,324 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:50,359 WARN L293 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:55,551 WARN L293 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:48:57,793 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse4 (bvugt c_~var_1_29~0 .cse5)) (.cse3 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (= c_~var_1_31~0 c_~var_1_17~0) (let ((.cse2 ((_ sign_extend 24) c_~var_1_20~0)) (.cse1 ((_ sign_extend 24) c_~var_1_21~0))) (let ((.cse0 (bvsgt .cse2 .cse1))) (or (and (not .cse0) (= ((_ extract 7 0) .cse1) c_~var_1_19~0)) (and (= ((_ extract 7 0) .cse2) c_~var_1_19~0) .cse0)))) (bvsge .cse3 (_ bv1 32)) (or .cse4 (not (bvult .cse5 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (= ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0) c_~var_1_30~0) (or (not .cse4) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (bvsle .cse3 (_ bv1 32)) (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse6 c_~var_1_9~0) .cse6)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-02 15:49:00,215 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse4 (bvugt c_~var_1_29~0 .cse5)) (.cse3 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (= c_~var_1_31~0 c_~var_1_17~0) (let ((.cse2 ((_ sign_extend 24) c_~var_1_20~0)) (.cse1 ((_ sign_extend 24) c_~var_1_21~0))) (let ((.cse0 (bvsgt .cse2 .cse1))) (or (and (not .cse0) (= ((_ extract 7 0) .cse1) c_~var_1_19~0)) (and (= ((_ extract 7 0) .cse2) c_~var_1_19~0) .cse0)))) (bvsge .cse3 (_ bv1 32)) (or .cse4 (not (bvult .cse5 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (= ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0) c_~var_1_30~0) (or (not .cse4) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (bvsle .cse3 (_ bv1 32)) (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse6 c_~var_1_9~0) .cse6)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-02 15:49:05,268 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:49:10,302 WARN L293 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:49:19,923 WARN L293 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:49:25,104 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:49:30,119 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:49:35,157 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:49:40,248 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:49:45,343 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:49:50,421 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:49:55,491 WARN L293 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:50:00,572 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:50:06,600 WARN L293 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:50:11,716 WARN L293 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:50:25,584 WARN L293 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:50:31,934 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:50:37,270 WARN L293 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:50:42,622 WARN L293 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:50:44,877 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse4 (bvugt c_~var_1_29~0 .cse5)) (.cse3 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (= c_~var_1_31~0 c_~var_1_17~0) (let ((.cse2 ((_ sign_extend 24) c_~var_1_20~0)) (.cse1 ((_ sign_extend 24) c_~var_1_21~0))) (let ((.cse0 (bvsgt .cse2 .cse1))) (or (and (not .cse0) (= ((_ extract 7 0) .cse1) c_~var_1_19~0)) (and (= ((_ extract 7 0) .cse2) c_~var_1_19~0) .cse0)))) (bvsge .cse3 (_ bv1 32)) (or .cse4 (not (bvult .cse5 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (= ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0) c_~var_1_30~0) (or (not .cse4) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (fp.eq c_~var_1_13~0 ((_ to_fp 8 24) c_currentRoundingMode (/ 9.0 2.0))) (bvsle .cse3 (_ bv1 32)) (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse6 c_~var_1_9~0) .cse6)) (= c_~var_1_16~0 (_ bv0 8)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-02 15:50:47,349 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse4 (bvugt c_~var_1_29~0 .cse5)) (.cse3 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (= c_~var_1_31~0 c_~var_1_17~0) (let ((.cse2 ((_ sign_extend 24) c_~var_1_20~0)) (.cse1 ((_ sign_extend 24) c_~var_1_21~0))) (let ((.cse0 (bvsgt .cse2 .cse1))) (or (and (not .cse0) (= ((_ extract 7 0) .cse1) c_~var_1_19~0)) (and (= ((_ extract 7 0) .cse2) c_~var_1_19~0) .cse0)))) (bvsge .cse3 (_ bv1 32)) (or .cse4 (not (bvult .cse5 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (= ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0) c_~var_1_30~0) (or (not .cse4) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (fp.eq c_~var_1_13~0 ((_ to_fp 8 24) c_currentRoundingMode (/ 9.0 2.0))) (bvsle .cse3 (_ bv1 32)) (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse6 c_~var_1_9~0) .cse6)) (= c_~var_1_16~0 (_ bv0 8)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-02 15:50:52,642 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:50:58,010 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:07,883 WARN L293 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:17,063 WARN L293 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:22,320 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:27,588 WARN L293 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:32,836 WARN L293 SmtUtils]: Spent 5.25s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:38,081 WARN L293 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:43,319 WARN L293 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:48,548 WARN L293 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:53,793 WARN L293 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:51:59,018 WARN L293 SmtUtils]: Spent 5.22s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:04,278 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:09,760 WARN L293 SmtUtils]: Spent 5.48s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:14,949 WARN L293 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:21,217 WARN L293 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:26,691 WARN L293 SmtUtils]: Spent 5.47s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:32,077 WARN L293 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:37,432 WARN L293 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:42,941 WARN L293 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:45,235 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse5 (bvugt c_~var_1_29~0 .cse6)) (.cse4 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (let ((.cse0 (fp.gt c_~var_1_14~0 c_~var_1_13~0))) (or (and (= c_~var_1_22~0 c_~var_1_13~0) (not .cse0)) (and (= c_~var_1_22~0 c_~var_1_14~0) .cse0))) (= c_~var_1_31~0 c_~var_1_17~0) (let ((.cse3 ((_ sign_extend 24) c_~var_1_20~0)) (.cse2 ((_ sign_extend 24) c_~var_1_21~0))) (let ((.cse1 (bvsgt .cse3 .cse2))) (or (and (not .cse1) (= ((_ extract 7 0) .cse2) c_~var_1_19~0)) (and (= ((_ extract 7 0) .cse3) c_~var_1_19~0) .cse1)))) (bvsge .cse4 (_ bv1 32)) (or .cse5 (not (bvult .cse6 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (= ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0) c_~var_1_30~0) (or (not .cse5) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (fp.eq c_~var_1_13~0 ((_ to_fp 8 24) c_currentRoundingMode (/ 9.0 2.0))) (bvsle .cse4 (_ bv1 32)) (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse7 c_~var_1_9~0) .cse7)) (= c_~var_1_16~0 (_ bv0 8)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-02 15:52:47,966 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ zero_extend 16) c_~var_1_5~0))) (let ((.cse5 (bvugt c_~var_1_29~0 .cse6)) (.cse4 ((_ zero_extend 24) c_~var_1_17~0))) (and (= c_~var_1_7~0 c_~var_1_5~0) (let ((.cse0 (fp.gt c_~var_1_14~0 c_~var_1_13~0))) (or (and (= c_~var_1_22~0 c_~var_1_13~0) (not .cse0)) (and (= c_~var_1_22~0 c_~var_1_14~0) .cse0))) (= c_~var_1_31~0 c_~var_1_17~0) (let ((.cse3 ((_ sign_extend 24) c_~var_1_20~0)) (.cse2 ((_ sign_extend 24) c_~var_1_21~0))) (let ((.cse1 (bvsgt .cse3 .cse2))) (or (and (not .cse1) (= ((_ extract 7 0) .cse2) c_~var_1_19~0)) (and (= ((_ extract 7 0) .cse3) c_~var_1_19~0) .cse1)))) (bvsge .cse4 (_ bv1 32)) (or .cse5 (not (bvult .cse6 (_ bv4 32)))) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv0 32)) (= ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0) c_~var_1_30~0) (or (not .cse5) (not (bvult c_~var_1_29~0 (_ bv4 32)))) (fp.eq c_~var_1_13~0 ((_ to_fp 8 24) c_currentRoundingMode (/ 9.0 2.0))) (bvsle .cse4 (_ bv1 32)) (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_12~0))) (fp.eq (fp.div c_currentRoundingMode .cse7 c_~var_1_9~0) .cse7)) (= c_~var_1_16~0 (_ bv0 8)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-02 15:52:53,250 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:52:58,528 WARN L293 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:03,793 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:13,643 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:18,935 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:24,245 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:29,582 WARN L293 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:35,178 WARN L293 SmtUtils]: Spent 5.59s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:40,618 WARN L293 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:45,927 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:51,448 WARN L293 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:53:56,848 WARN L293 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:54:02,265 WARN L293 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:54:07,639 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:54:12,988 WARN L293 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:54:18,566 WARN L293 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:54:23,946 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 15:54:25,972 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:54:25,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798417603] [2023-12-02 15:54:25,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: line 102321 column 7: canceled [2023-12-02 15:54:25,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [974713835] [2023-12-02 15:54:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:54:25,973 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:54:25,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:54:25,975 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:54:25,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3229912-8769-4439-a030-7263c110e9ff/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 15:54:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:54:30,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 15:54:30,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:54:40,662 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 8 treesize of output 4 [2023-12-02 15:54:46,688 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-12-02 15:54:48,711 WARN L876 $PredicateComparison]: unable to prove that (and (= c_~var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2023-12-02 15:54:58,844 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~last_1_var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-12-02 15:55:00,859 WARN L876 $PredicateComparison]: unable to prove that (and (= c_~last_1_var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2023-12-02 15:55:23,138 WARN L854 $PredicateComparison]: unable to prove that (and (= |c_assume_abort_if_not_#in~cond| c_assume_abort_if_not_~cond) (= c_~last_1_var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-12-02 15:55:25,143 WARN L876 $PredicateComparison]: unable to prove that (and (= |c_assume_abort_if_not_#in~cond| c_assume_abort_if_not_~cond) (= c_~last_1_var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2023-12-02 15:55:39,258 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~last_1_var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from false [2023-12-02 15:55:41,272 WARN L876 $PredicateComparison]: unable to prove that (and (= c_~last_1_var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2023-12-02 15:56:07,436 WARN L854 $PredicateComparison]: unable to prove that (and (bvsge ((_ zero_extend 16) c_~var_1_5~0) (_ bv32767 32)) (= c_~last_1_var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-12-02 15:56:09,511 WARN L876 $PredicateComparison]: unable to prove that (and (bvsge ((_ zero_extend 16) c_~var_1_5~0) (_ bv32767 32)) (= c_~last_1_var_1_12~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20000000001.0 2.0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true