./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire --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 908ebf0ce710b19ef334a87c76f83c10f178a5493f5ed2ea191592b95f89ac2f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:26:57,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:26:57,364 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:26:57,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:26:57,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:26:57,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:26:57,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:26:57,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:26:57,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:26:57,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:26:57,406 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:26:57,407 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:26:57,408 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:26:57,408 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:26:57,409 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:26:57,410 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:26:57,410 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:26:57,411 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:26:57,412 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:26:57,412 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:26:57,413 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:26:57,414 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:26:57,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:26:57,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:26:57,416 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:26:57,416 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:26:57,417 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:26:57,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:26:57,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:26:57,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:26:57,419 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:26:57,419 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:26:57,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:26:57,420 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:26:57,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:26:57,421 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:26:57,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:26:57,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:26:57,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:26:57,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:26:57,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:26:57,423 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:26:57,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:26:57,424 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:26:57,424 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:26:57,424 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:26:57,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:26:57,425 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_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 908ebf0ce710b19ef334a87c76f83c10f178a5493f5ed2ea191592b95f89ac2f [2023-11-23 21:26:57,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:26:57,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:26:57,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:26:57,748 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:26:57,749 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:26:57,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i [2023-11-23 21:27:00,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:01,272 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:01,272 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i [2023-11-23 21:27:01,298 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/data/f753a66bd/70fe43cecd674b0b88bd2861a025bc99/FLAG0427e30b0 [2023-11-23 21:27:01,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/data/f753a66bd/70fe43cecd674b0b88bd2861a025bc99 [2023-11-23 21:27:01,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:01,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:01,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:01,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:01,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:01,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f6a6f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01, skipping insertion in model container [2023-11-23 21:27:01,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,401 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:01,580 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_9329399d-eb18-4af2-8c92-50b923992487/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i[919,932] [2023-11-23 21:27:01,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:01,691 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:01,707 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_9329399d-eb18-4af2-8c92-50b923992487/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i[919,932] [2023-11-23 21:27:01,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:01,779 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:01,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01 WrapperNode [2023-11-23 21:27:01,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:01,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:01,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:01,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:01,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,895 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 253 [2023-11-23 21:27:01,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:01,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:01,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:01,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:01,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:01,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:01,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:01,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:01,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (1/1) ... [2023-11-23 21:27:01,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:02,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:02,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:27:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:27:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:02,184 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:02,187 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:02,916 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:03,639 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:03,639 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:27:03,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:03 BoogieIcfgContainer [2023-11-23 21:27:03,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:03,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:03,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:03,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:03,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:01" (1/3) ... [2023-11-23 21:27:03,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3320f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:03, skipping insertion in model container [2023-11-23 21:27:03,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:01" (2/3) ... [2023-11-23 21:27:03,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3320f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:03, skipping insertion in model container [2023-11-23 21:27:03,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:03" (3/3) ... [2023-11-23 21:27:03,657 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i [2023-11-23 21:27:03,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:03,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:27:03,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:03,773 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;@430fb7d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:03,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:27:03,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:27:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 21:27:03,793 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:03,794 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:03,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:03,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:03,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1667326090, now seen corresponding path program 1 times [2023-11-23 21:27:03,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:03,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314756826] [2023-11-23 21:27:03,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:03,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:04,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:27:04,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1742582270] [2023-11-23 21:27:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:04,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:27:04,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:04,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:27:04,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:27:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:04,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:27:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:04,751 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:27:04,753 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:27:04,755 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:27:04,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 21:27:04,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:27:04,988 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:27:04,991 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:27:05,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:27:05 BoogieIcfgContainer [2023-11-23 21:27:05,142 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:27:05,143 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:27:05,143 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:27:05,143 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:27:05,144 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:03" (3/4) ... [2023-11-23 21:27:05,146 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:27:05,148 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:27:05,149 INFO L158 Benchmark]: Toolchain (without parser) took 3828.15ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 117.2MB in the beginning and 148.7MB in the end (delta: -31.5MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2023-11-23 21:27:05,150 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:05,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.46ms. Allocated memory is still 155.2MB. Free memory was 116.7MB in the beginning and 101.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 21:27:05,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.14ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 94.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:27:05,152 INFO L158 Benchmark]: Boogie Preprocessor took 75.69ms. Allocated memory is still 155.2MB. Free memory was 94.7MB in the beginning and 91.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:05,153 INFO L158 Benchmark]: RCFGBuilder took 1667.89ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 91.4MB in the beginning and 114.2MB in the end (delta: -22.8MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2023-11-23 21:27:05,153 INFO L158 Benchmark]: TraceAbstraction took 1495.92ms. Allocated memory is still 218.1MB. Free memory was 113.1MB in the beginning and 149.8MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:05,154 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 218.1MB. Free memory was 149.8MB in the beginning and 148.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:05,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.46ms. Allocated memory is still 155.2MB. Free memory was 116.7MB in the beginning and 101.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.14ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 94.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.69ms. Allocated memory is still 155.2MB. Free memory was 94.7MB in the beginning and 91.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1667.89ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 91.4MB in the beginning and 114.2MB in the end (delta: -22.8MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1495.92ms. Allocated memory is still 218.1MB. Free memory was 113.1MB in the beginning and 149.8MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 218.1MB. Free memory was 149.8MB in the beginning and 148.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 52, overapproximation of bitwiseOr at line 92, overapproximation of bitwiseAnd at line 62, overapproximation of someBinaryDOUBLEComparisonOperation at line 117. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 2; [L23] signed long int var_1_5 = 5; [L24] unsigned char var_1_8 = 0; [L25] float var_1_9 = 128.6; [L26] float var_1_10 = 32.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 64; [L29] unsigned char var_1_13 = 4; [L30] unsigned char var_1_14 = 4; [L31] unsigned long int var_1_15 = 0; [L32] signed short int var_1_16 = 0; [L33] signed char var_1_17 = 1; [L34] signed char var_1_18 = -1; [L35] signed char var_1_19 = 0; [L36] signed long int var_1_20 = -64; [L37] unsigned char var_1_22 = 0; [L38] unsigned char var_1_23 = 0; [L39] signed short int var_1_24 = -4; [L40] unsigned short int var_1_29 = 8; [L41] unsigned short int var_1_33 = 48416; [L42] unsigned char var_1_35 = 4; [L43] unsigned long int var_1_37 = 32; [L44] unsigned char var_1_38 = 8; [L45] double var_1_40 = 31.75; [L46] double var_1_41 = 5.5; [L47] signed char var_1_43 = 100; [L48] signed long int last_1_var_1_5 = 5; [L178] isInitial = 1 [L179] FCALL initially() [L180] COND TRUE 1 [L181] CALL updateLastVariables() [L171] last_1_var_1_5 = var_1_5 [L181] RET updateLastVariables() [L182] CALL updateVariables() [L137] var_1_9 = __VERIFIER_nondet_float() [L138] 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_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L138] 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_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L139] var_1_10 = __VERIFIER_nondet_float() [L140] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L141] var_1_11 = __VERIFIER_nondet_uchar() [L142] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L143] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L144] var_1_12 = __VERIFIER_nondet_uchar() [L145] CALL assume_abort_if_not(var_1_12 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_12 >= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L146] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L147] var_1_13 = __VERIFIER_nondet_uchar() [L148] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L149] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L150] var_1_14 = __VERIFIER_nondet_uchar() [L151] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L152] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L153] var_1_18 = __VERIFIER_nondet_char() [L154] CALL assume_abort_if_not(var_1_18 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_18 >= -31) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L155] CALL assume_abort_if_not(var_1_18 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_18 <= 32) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L156] var_1_19 = __VERIFIER_nondet_char() [L157] CALL assume_abort_if_not(var_1_19 >= -15) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_19 >= -15) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L158] CALL assume_abort_if_not(var_1_19 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_19 <= 16) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L159] var_1_23 = __VERIFIER_nondet_uchar() [L160] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L161] CALL assume_abort_if_not(var_1_23 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_23 <= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L162] var_1_33 = __VERIFIER_nondet_ushort() [L163] CALL assume_abort_if_not(var_1_33 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_33 >= 32767) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L164] CALL assume_abort_if_not(var_1_33 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_33 <= 65534) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L165] var_1_40 = __VERIFIER_nondet_double() [L166] CALL assume_abort_if_not((var_1_40 >= 0.0F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854776000e+12F && var_1_40 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not((var_1_40 >= 0.0F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854776000e+12F && var_1_40 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L167] var_1_41 = __VERIFIER_nondet_double() [L168] CALL assume_abort_if_not((var_1_41 >= 0.0F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854776000e+12F && var_1_41 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not((var_1_41 >= 0.0F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854776000e+12F && var_1_41 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L182] RET updateVariables() [L183] CALL step() [L52] COND FALSE !(var_1_9 > var_1_10) [L55] var_1_20 = var_1_8 [L56] var_1_22 = var_1_23 [L57] COND FALSE !(\read(var_1_22)) [L60] var_1_16 = (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11) [L61] COND FALSE !(\read(var_1_22)) [L68] var_1_17 = -32 [L70] unsigned long int stepLocal_1 = var_1_20 + var_1_15; [L71] signed long int stepLocal_0 = var_1_20; [L72] COND TRUE stepLocal_1 < -200 [L73] COND FALSE !(\read(var_1_22)) [L80] var_1_1 = var_1_20 [L85] signed long int stepLocal_4 = 256; [L86] unsigned char stepLocal_3 = var_1_22; [L87] unsigned long int stepLocal_2 = var_1_15; [L88] COND FALSE !(stepLocal_4 > (var_1_15 - (last_1_var_1_5 + var_1_8))) [L91] COND FALSE !(stepLocal_3 || var_1_22) [L96] var_1_5 = -10000 [L99] COND FALSE !(\read(var_1_23)) [L104] var_1_24 = ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) [L106] COND FALSE !((var_1_20 / var_1_12) < var_1_11) [L109] var_1_29 = ((((((((((((var_1_12) < (var_1_8)) ? (var_1_12) : (var_1_8)))) > (var_1_12)) ? (((((var_1_12) < (var_1_8)) ? (var_1_12) : (var_1_8)))) : (var_1_12)))) > ((var_1_33 - var_1_11))) ? (((((((((var_1_12) < (var_1_8)) ? (var_1_12) : (var_1_8)))) > (var_1_12)) ? (((((var_1_12) < (var_1_8)) ? (var_1_12) : (var_1_8)))) : (var_1_12)))) : ((var_1_33 - var_1_11)))) [L111] COND FALSE !(\read(var_1_22)) [L114] COND TRUE ((((var_1_8) < (var_1_12)) ? (var_1_8) : (var_1_12))) >= var_1_20 [L115] var_1_37 = var_1_8 [L117] COND TRUE (var_1_9 * (var_1_40 - var_1_41)) >= var_1_9 [L118] COND TRUE (~ var_1_14) <= (((((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14))) < 0 ) ? -((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14))) : ((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14))))) [L119] var_1_38 = var_1_14 [L126] COND FALSE !(((((var_1_10) > (64.75f)) ? (var_1_10) : (64.75f))) <= var_1_40) [L133] var_1_43 = var_1_13 [L183] RET step() [L184] CALL, EXPR property() [L174] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) [L174] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) [L174] EXPR (var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)) [L174] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) [L174] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) [L174] EXPR (((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32))) [L174-L175] return (((((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32)))) && (var_1_20 == ((signed long int) var_1_8))) && (var_1_22 == ((unsigned char) var_1_23)) ; [L184] RET, EXPR property() [L184] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=1, var_1_43=0, var_1_5=-10000, var_1_8=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=1, var_1_43=0, var_1_5=-10000, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:27:05,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire --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 908ebf0ce710b19ef334a87c76f83c10f178a5493f5ed2ea191592b95f89ac2f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:07,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:07,913 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:27:07,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:07,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:07,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:07,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:07,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:07,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:07,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:07,976 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:07,976 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:07,977 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:07,978 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:07,979 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:07,979 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:07,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:07,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:07,982 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:07,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:07,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:07,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:07,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:07,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:07,985 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:27:07,985 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:27:07,986 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:27:07,986 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:07,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:07,987 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:07,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:07,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:27:07,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:07,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:07,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:07,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:07,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:07,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:07,991 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:27:07,992 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:07,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:07,993 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:07,993 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:07,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:07,994 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_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 908ebf0ce710b19ef334a87c76f83c10f178a5493f5ed2ea191592b95f89ac2f [2023-11-23 21:27:08,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:08,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:08,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:08,499 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:08,500 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:08,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i [2023-11-23 21:27:11,485 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:11,808 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:11,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i [2023-11-23 21:27:11,831 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/data/a7e730bc1/56c70668e11c4c45a10f267d33990cee/FLAG106094b6c [2023-11-23 21:27:11,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/data/a7e730bc1/56c70668e11c4c45a10f267d33990cee [2023-11-23 21:27:11,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:11,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:11,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:11,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:11,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:11,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:11" (1/1) ... [2023-11-23 21:27:11,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d32ac95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:11, skipping insertion in model container [2023-11-23 21:27:11,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:11" (1/1) ... [2023-11-23 21:27:11,935 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:12,155 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_9329399d-eb18-4af2-8c92-50b923992487/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i[919,932] [2023-11-23 21:27:12,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:12,248 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:12,263 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_9329399d-eb18-4af2-8c92-50b923992487/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i[919,932] [2023-11-23 21:27:12,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:12,329 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:12,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12 WrapperNode [2023-11-23 21:27:12,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:12,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:12,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:12,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:12,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,401 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-11-23 21:27:12,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:12,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:12,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:12,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:12,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:12,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:12,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:12,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:12,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (1/1) ... [2023-11-23 21:27:12,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:12,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:12,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:12,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:27:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:27:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:27:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:12,796 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:12,800 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:17,778 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:17,881 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:17,882 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:27:17,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:17 BoogieIcfgContainer [2023-11-23 21:27:17,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:17,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:17,886 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:17,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:17,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:11" (1/3) ... [2023-11-23 21:27:17,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2f8c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:17, skipping insertion in model container [2023-11-23 21:27:17,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:12" (2/3) ... [2023-11-23 21:27:17,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2f8c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:17, skipping insertion in model container [2023-11-23 21:27:17,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:17" (3/3) ... [2023-11-23 21:27:17,896 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i [2023-11-23 21:27:17,916 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:17,916 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:27:17,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:17,985 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;@319b4e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:17,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:27:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:27:18,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 21:27:18,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:18,010 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:18,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:18,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:18,017 INFO L85 PathProgramCache]: Analyzing trace with hash -104616159, now seen corresponding path program 1 times [2023-11-23 21:27:18,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:18,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758807709] [2023-11-23 21:27:18,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:18,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:18,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:18,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:27:18,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:27:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:18,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:27:18,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:18,713 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-23 21:27:18,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:18,714 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:18,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758807709] [2023-11-23 21:27:18,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758807709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:18,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:18,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:27:18,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296522617] [2023-11-23 21:27:18,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:18,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:27:18,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:18,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:27:18,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:27:18,777 INFO L87 Difference]: Start difference. First operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:27:18,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:18,864 INFO L93 Difference]: Finished difference Result 134 states and 238 transitions. [2023-11-23 21:27:18,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:27:18,870 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 132 [2023-11-23 21:27:18,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:18,887 INFO L225 Difference]: With dead ends: 134 [2023-11-23 21:27:18,887 INFO L226 Difference]: Without dead ends: 66 [2023-11-23 21:27:18,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:27:18,899 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:18,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:27:18,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-23 21:27:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-23 21:27:18,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 44 states have internal predecessors, (61), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:27:18,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 101 transitions. [2023-11-23 21:27:18,967 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 101 transitions. Word has length 132 [2023-11-23 21:27:18,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:18,969 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 101 transitions. [2023-11-23 21:27:18,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:27:18,970 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 101 transitions. [2023-11-23 21:27:18,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 21:27:18,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:18,989 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:19,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:19,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:19,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:19,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:19,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1739282151, now seen corresponding path program 1 times [2023-11-23 21:27:19,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:19,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940105980] [2023-11-23 21:27:19,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:19,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:19,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:19,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:27:19,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:27:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:19,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:27:19,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-11-23 21:27:20,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:27:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 21:27:20,953 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:20,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940105980] [2023-11-23 21:27:20,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940105980] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:27:20,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1723949196] [2023-11-23 21:27:20,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:20,954 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:20,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:27:20,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:27:20,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 21:27:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:21,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:27:21,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 21:27:21,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:21,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1723949196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:21,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:27:21,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 8 [2023-11-23 21:27:21,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631108461] [2023-11-23 21:27:21,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:21,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:27:21,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:21,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:27:21,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:27:21,534 INFO L87 Difference]: Start difference. First operand 66 states and 101 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:21,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:21,685 INFO L93 Difference]: Finished difference Result 193 states and 295 transitions. [2023-11-23 21:27:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:27:21,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2023-11-23 21:27:21,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:21,691 INFO L225 Difference]: With dead ends: 193 [2023-11-23 21:27:21,691 INFO L226 Difference]: Without dead ends: 128 [2023-11-23 21:27:21,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 385 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:27:21,695 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 83 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:21,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 180 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:27:21,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-23 21:27:21,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 79. [2023-11-23 21:27:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 57 states have internal predecessors, (80), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:27:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 120 transitions. [2023-11-23 21:27:21,719 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 120 transitions. Word has length 132 [2023-11-23 21:27:21,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:21,721 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 120 transitions. [2023-11-23 21:27:21,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 120 transitions. [2023-11-23 21:27:21,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 21:27:21,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:21,725 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:21,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-23 21:27:21,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:22,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:22,129 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:22,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:22,130 INFO L85 PathProgramCache]: Analyzing trace with hash 35725211, now seen corresponding path program 1 times [2023-11-23 21:27:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:22,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730316268] [2023-11-23 21:27:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:22,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:22,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:22,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:27:22,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 21:27:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:22,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:27:22,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:23,037 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-11-23 21:27:23,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:27:23,547 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 21:27:23,548 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:23,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730316268] [2023-11-23 21:27:23,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730316268] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:27:23,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [590555486] [2023-11-23 21:27:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:23,549 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:23,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:27:23,551 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:27:23,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-23 21:27:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:23,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:27:23,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:24,103 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 21:27:24,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:24,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [590555486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:24,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:27:24,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 9 [2023-11-23 21:27:24,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048338539] [2023-11-23 21:27:24,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:24,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:27:24,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:24,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:27:24,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:27:24,107 INFO L87 Difference]: Start difference. First operand 79 states and 120 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:24,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:24,282 INFO L93 Difference]: Finished difference Result 206 states and 311 transitions. [2023-11-23 21:27:24,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:27:24,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2023-11-23 21:27:24,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:24,287 INFO L225 Difference]: With dead ends: 206 [2023-11-23 21:27:24,288 INFO L226 Difference]: Without dead ends: 128 [2023-11-23 21:27:24,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 385 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:27:24,291 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 86 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:24,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 259 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:27:24,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-23 21:27:24,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 79. [2023-11-23 21:27:24,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 57 states have internal predecessors, (76), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:27:24,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 116 transitions. [2023-11-23 21:27:24,309 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 116 transitions. Word has length 132 [2023-11-23 21:27:24,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:24,310 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 116 transitions. [2023-11-23 21:27:24,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:24,310 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 116 transitions. [2023-11-23 21:27:24,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 21:27:24,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:24,314 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:24,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:24,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:24,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:24,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:24,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:24,727 INFO L85 PathProgramCache]: Analyzing trace with hash -985343143, now seen corresponding path program 1 times [2023-11-23 21:27:24,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:24,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409722326] [2023-11-23 21:27:24,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:24,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:24,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:24,740 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:27:24,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-23 21:27:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:25,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:27:25,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 21:27:26,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:26,495 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:26,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409722326] [2023-11-23 21:27:26,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409722326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:26,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:26,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:27:26,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521928569] [2023-11-23 21:27:26,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:26,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:27:26,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:26,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:27:26,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:27:26,499 INFO L87 Difference]: Start difference. First operand 79 states and 116 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:27,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:27,567 INFO L93 Difference]: Finished difference Result 259 states and 383 transitions. [2023-11-23 21:27:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:27:27,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2023-11-23 21:27:27,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:27,572 INFO L225 Difference]: With dead ends: 259 [2023-11-23 21:27:27,572 INFO L226 Difference]: Without dead ends: 181 [2023-11-23 21:27:27,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:27:27,575 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 111 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:27,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 453 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 21:27:27,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-23 21:27:27,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 140. [2023-11-23 21:27:27,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 97 states have (on average 1.309278350515464) internal successors, (127), 97 states have internal predecessors, (127), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 21:27:27,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 207 transitions. [2023-11-23 21:27:27,611 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 207 transitions. Word has length 132 [2023-11-23 21:27:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:27,612 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 207 transitions. [2023-11-23 21:27:27,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:27,613 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 207 transitions. [2023-11-23 21:27:27,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-23 21:27:27,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:27,616 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:27,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:27,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:27,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:27,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:27,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2032398969, now seen corresponding path program 1 times [2023-11-23 21:27:27,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:27,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088516267] [2023-11-23 21:27:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:27,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:27,833 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:27:27,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:27:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:28,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:27:28,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-11-23 21:27:28,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:27:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 21:27:29,181 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:29,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088516267] [2023-11-23 21:27:29,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088516267] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:27:29,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [898606633] [2023-11-23 21:27:29,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:29,182 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:29,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:27:29,184 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:27:29,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-23 21:27:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:29,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:27:29,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 21:27:29,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:29,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [898606633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:29,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:27:29,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 6] total 9 [2023-11-23 21:27:29,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813932520] [2023-11-23 21:27:29,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:29,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:27:29,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:29,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:27:29,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:27:29,824 INFO L87 Difference]: Start difference. First operand 140 states and 207 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:30,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:30,472 INFO L93 Difference]: Finished difference Result 340 states and 495 transitions. [2023-11-23 21:27:30,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:27:30,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2023-11-23 21:27:30,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:30,476 INFO L225 Difference]: With dead ends: 340 [2023-11-23 21:27:30,476 INFO L226 Difference]: Without dead ends: 199 [2023-11-23 21:27:30,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 388 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:27:30,479 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 160 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:30,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 156 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:27:30,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-23 21:27:30,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 146. [2023-11-23 21:27:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 101 states have (on average 1.2673267326732673) internal successors, (128), 101 states have internal predecessors, (128), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 21:27:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 208 transitions. [2023-11-23 21:27:30,510 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 208 transitions. Word has length 133 [2023-11-23 21:27:30,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:30,511 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 208 transitions. [2023-11-23 21:27:30,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 208 transitions. [2023-11-23 21:27:30,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-23 21:27:30,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:30,514 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:30,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:30,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:30,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:30,926 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:30,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1113340114, now seen corresponding path program 1 times [2023-11-23 21:27:30,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:30,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384432239] [2023-11-23 21:27:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:30,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:30,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:30,929 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:27:30,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:27:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:31,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:27:31,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 21:27:33,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:33,905 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:33,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384432239] [2023-11-23 21:27:33,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384432239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:33,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:33,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:27:33,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217869630] [2023-11-23 21:27:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:33,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:27:33,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:33,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:27:33,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:27:33,909 INFO L87 Difference]: Start difference. First operand 146 states and 208 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:34,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:34,658 INFO L93 Difference]: Finished difference Result 371 states and 526 transitions. [2023-11-23 21:27:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:27:34,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2023-11-23 21:27:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:34,662 INFO L225 Difference]: With dead ends: 371 [2023-11-23 21:27:34,662 INFO L226 Difference]: Without dead ends: 226 [2023-11-23 21:27:34,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:27:34,664 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 86 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:34,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 343 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:27:34,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-23 21:27:34,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 210. [2023-11-23 21:27:34,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 143 states have (on average 1.2517482517482517) internal successors, (179), 143 states have internal predecessors, (179), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-23 21:27:34,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 299 transitions. [2023-11-23 21:27:34,708 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 299 transitions. Word has length 133 [2023-11-23 21:27:34,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:34,708 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 299 transitions. [2023-11-23 21:27:34,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:34,709 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 299 transitions. [2023-11-23 21:27:34,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 21:27:34,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:34,711 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:34,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:27:34,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:34,922 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:34,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:34,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1568421334, now seen corresponding path program 1 times [2023-11-23 21:27:34,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:34,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110578100] [2023-11-23 21:27:34,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:34,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:34,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:34,925 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:27:34,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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 (11)] Waiting until timeout for monitored process [2023-11-23 21:27:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:35,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:27:35,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-11-23 21:27:35,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:27:36,227 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 21:27:36,227 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:36,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110578100] [2023-11-23 21:27:36,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110578100] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:27:36,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [560373440] [2023-11-23 21:27:36,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:36,229 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:36,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:27:36,230 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:27:36,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-23 21:27:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:37,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:27:37,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 21:27:37,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:37,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [560373440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:37,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:27:37,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 11 [2023-11-23 21:27:37,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314831659] [2023-11-23 21:27:37,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:37,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:27:37,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:37,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:27:37,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:27:37,510 INFO L87 Difference]: Start difference. First operand 210 states and 299 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:39,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:39,107 INFO L93 Difference]: Finished difference Result 403 states and 573 transitions. [2023-11-23 21:27:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:27:39,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2023-11-23 21:27:39,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:39,111 INFO L225 Difference]: With dead ends: 403 [2023-11-23 21:27:39,111 INFO L226 Difference]: Without dead ends: 322 [2023-11-23 21:27:39,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 390 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:27:39,112 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 181 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:39,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 556 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:27:39,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-23 21:27:39,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 274. [2023-11-23 21:27:39,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 185 states have (on average 1.2432432432432432) internal successors, (230), 185 states have internal predecessors, (230), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-23 21:27:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 390 transitions. [2023-11-23 21:27:39,162 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 390 transitions. Word has length 134 [2023-11-23 21:27:39,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:39,163 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 390 transitions. [2023-11-23 21:27:39,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:27:39,163 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 390 transitions. [2023-11-23 21:27:39,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 21:27:39,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:39,166 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:39,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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 (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:39,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:39,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:39,583 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:39,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:39,584 INFO L85 PathProgramCache]: Analyzing trace with hash -368747334, now seen corresponding path program 1 times [2023-11-23 21:27:39,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:39,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569104942] [2023-11-23 21:27:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:39,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:27:39,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:39,587 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:27:39,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9329399d-eb18-4af2-8c92-50b923992487/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:27:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:40,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-23 21:27:40,525 INFO L285 TraceCheckSpWp]: Computing forward predicates...