./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 176f03b1400c1ac7dc9e88fd771da3300863068aea109920745c2a40ee9af7e9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:49:10,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:49:11,005 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:49:11,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:49:11,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:49:11,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:49:11,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:49:11,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:49:11,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:49:11,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:49:11,036 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:49:11,037 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:49:11,037 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:49:11,038 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:49:11,039 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:49:11,039 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:49:11,040 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:49:11,040 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:49:11,041 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:49:11,041 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:49:11,042 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:49:11,042 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:49:11,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:49:11,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:49:11,044 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:49:11,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:49:11,045 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:49:11,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:49:11,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:49:11,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:49:11,046 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:49:11,047 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:49:11,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:49:11,048 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:49:11,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:49:11,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:49:11,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:11,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:49:11,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:49:11,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:49:11,051 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:49:11,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:49:11,052 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:49:11,052 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:49:11,053 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:49:11,053 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_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 176f03b1400c1ac7dc9e88fd771da3300863068aea109920745c2a40ee9af7e9 [2023-11-19 04:49:11,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:49:11,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:49:11,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:49:11,316 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:49:11,316 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:49:11,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i [2023-11-19 04:49:14,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:49:14,772 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:49:14,773 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i [2023-11-19 04:49:14,784 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/data/68c06df15/641846e3e005473eb5b0474d7f27e051/FLAG04988fd22 [2023-11-19 04:49:14,800 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/data/68c06df15/641846e3e005473eb5b0474d7f27e051 [2023-11-19 04:49:14,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:49:14,805 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:49:14,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:14,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:49:14,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:49:14,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:14" (1/1) ... [2023-11-19 04:49:14,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd70c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:14, skipping insertion in model container [2023-11-19 04:49:14,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:14" (1/1) ... [2023-11-19 04:49:14,852 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:49:15,036 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_a9a7c52d-5cfa-4981-a620-88eff0cbe232/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i[919,932] [2023-11-19 04:49:15,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:15,194 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:49:15,211 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_a9a7c52d-5cfa-4981-a620-88eff0cbe232/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i[919,932] [2023-11-19 04:49:15,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:15,264 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:49:15,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15 WrapperNode [2023-11-19 04:49:15,265 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:15,266 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:15,266 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:49:15,266 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:49:15,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,288 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,359 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 173 [2023-11-19 04:49:15,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:15,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:49:15,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:49:15,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:49:15,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:49:15,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:49:15,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:49:15,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:49:15,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (1/1) ... [2023-11-19 04:49:15,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:15,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:49:15,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:49:15,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:49:15,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:49:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:49:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:49:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:49:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:49:15,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:49:15,668 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:49:15,671 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:49:16,289 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:49:16,685 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:49:16,685 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:49:16,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:49:16 BoogieIcfgContainer [2023-11-19 04:49:16,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:49:16,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:49:16,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:49:16,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:49:16,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:49:14" (1/3) ... [2023-11-19 04:49:16,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3b656f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:49:16, skipping insertion in model container [2023-11-19 04:49:16,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:15" (2/3) ... [2023-11-19 04:49:16,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3b656f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:49:16, skipping insertion in model container [2023-11-19 04:49:16,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:49:16" (3/3) ... [2023-11-19 04:49:16,705 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i [2023-11-19 04:49:16,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:49:16,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:49:16,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:49:16,778 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;@46fc83e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:49:16,779 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:49:16,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:49:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 04:49:16,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:16,794 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:16,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:49:16,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:16,801 INFO L85 PathProgramCache]: Analyzing trace with hash 417257567, now seen corresponding path program 1 times [2023-11-19 04:49:16,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:16,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470401129] [2023-11-19 04:49:16,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:16,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:17,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:49:17,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109635581] [2023-11-19 04:49:17,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:17,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:49:17,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:49:17,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:49:17,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:49:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:49:17,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:49:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:49:17,624 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:49:17,627 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:49:17,629 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:49:17,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:49:17,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 04:49:17,843 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:49:17,847 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:49:17,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:49:17 BoogieIcfgContainer [2023-11-19 04:49:17,963 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:49:17,963 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:49:17,964 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:49:17,964 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:49:17,964 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:49:16" (3/4) ... [2023-11-19 04:49:17,967 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:49:17,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:49:17,969 INFO L158 Benchmark]: Toolchain (without parser) took 3163.67ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 121.3MB in the beginning and 145.8MB in the end (delta: -24.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-11-19 04:49:17,970 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 111.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:49:17,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.99ms. Allocated memory is still 153.1MB. Free memory was 121.3MB in the beginning and 106.0MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:49:17,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.90ms. Allocated memory is still 153.1MB. Free memory was 106.0MB in the beginning and 101.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:49:17,972 INFO L158 Benchmark]: Boogie Preprocessor took 79.33ms. Allocated memory is still 153.1MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:49:17,973 INFO L158 Benchmark]: RCFGBuilder took 1250.99ms. Allocated memory is still 153.1MB. Free memory was 98.9MB in the beginning and 92.1MB in the end (delta: 6.8MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-11-19 04:49:17,974 INFO L158 Benchmark]: TraceAbstraction took 1266.63ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 91.4MB in the beginning and 146.9MB in the end (delta: -55.4MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2023-11-19 04:49:17,975 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 190.8MB. Free memory was 146.9MB in the beginning and 145.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:49:17,985 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 111.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.99ms. Allocated memory is still 153.1MB. Free memory was 121.3MB in the beginning and 106.0MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.90ms. Allocated memory is still 153.1MB. Free memory was 106.0MB in the beginning and 101.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.33ms. Allocated memory is still 153.1MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1250.99ms. Allocated memory is still 153.1MB. Free memory was 98.9MB in the beginning and 92.1MB in the end (delta: 6.8MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1266.63ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 91.4MB in the beginning and 146.9MB in the end (delta: -55.4MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 190.8MB. Free memory was 146.9MB in the beginning and 145.8MB 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 82, overapproximation of bitwiseOr at line 81, overapproximation of someUnaryDOUBLEoperation at line 35, overapproximation of someBinaryDOUBLEComparisonOperation at line 70, overapproximation of someUnaryFLOAToperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] signed short int var_1_4 = -200; [L24] unsigned short int var_1_8 = 5; [L25] unsigned char var_1_9 = 1; [L26] unsigned char var_1_10 = 0; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 16; [L29] unsigned char var_1_15 = 50; [L30] unsigned short int var_1_16 = 1; [L31] float var_1_17 = 25.4; [L32] float var_1_20 = 1.6; [L33] unsigned short int var_1_21 = 0; [L34] float var_1_24 = 128.5; [L35] double var_1_25 = -0.5; [L36] signed long int var_1_26 = 4; [L37] signed char var_1_27 = 2; [L38] signed char var_1_28 = -16; [L39] signed char var_1_29 = 0; [L40] unsigned char var_1_30 = 0; [L41] unsigned long int var_1_34 = 50; [L42] double var_1_35 = 31.1; [L43] unsigned long int var_1_37 = 64; [L44] signed long int var_1_38 = 8; [L45] float var_1_39 = 200.6; [L46] unsigned short int var_1_40 = 2; [L47] signed char var_1_42 = -4; [L48] double var_1_43 = 2.75; [L49] signed char var_1_45 = 32; [L50] unsigned long int var_1_46 = 32; [L51] signed long int var_1_47 = -256; [L52] unsigned char last_1_var_1_9 = 1; [L53] float last_1_var_1_24 = 128.5; [L164] isInitial = 1 [L165] FCALL initially() [L166] COND TRUE 1 [L167] CALL updateLastVariables() [L156] last_1_var_1_9 = var_1_9 [L157] last_1_var_1_24 = var_1_24 [L167] RET updateLastVariables() [L168] CALL updateVariables() [L127] var_1_4 = __VERIFIER_nondet_short() [L128] CALL assume_abort_if_not(var_1_4 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_4 >= -32768) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=5, var_1_9=1] [L129] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=5, var_1_9=1] [L130] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=5, var_1_9=1] [L131] var_1_8 = __VERIFIER_nondet_ushort() [L132] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L133] CALL assume_abort_if_not(var_1_8 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L133] RET assume_abort_if_not(var_1_8 <= 32767) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L134] var_1_10 = __VERIFIER_nondet_uchar() [L135] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L136] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L136] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L137] var_1_11 = __VERIFIER_nondet_uchar() [L138] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L139] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L140] var_1_15 = __VERIFIER_nondet_uchar() [L141] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L142] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L143] var_1_20 = __VERIFIER_nondet_float() [L144] CALL assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L145] var_1_28 = __VERIFIER_nondet_char() [L146] CALL assume_abort_if_not(var_1_28 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_28 >= -126) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L147] CALL assume_abort_if_not(var_1_28 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_28 <= 126) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L148] var_1_29 = __VERIFIER_nondet_char() [L149] CALL assume_abort_if_not(var_1_29 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_29 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L150] CALL assume_abort_if_not(var_1_29 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_29 <= 126) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L151] var_1_39 = __VERIFIER_nondet_float() [L152] CALL assume_abort_if_not((var_1_39 >= -922337.2036854776000e+13F && var_1_39 <= -1.0e-20F) || (var_1_39 <= 9223372.036854776000e+12F && var_1_39 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=3, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not((var_1_39 >= -922337.2036854776000e+13F && var_1_39 <= -1.0e-20F) || (var_1_39 <= 9223372.036854776000e+12F && var_1_39 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=3, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L153] CALL assume_abort_if_not(var_1_39 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=3, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_39 != 0.0F) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=4, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=3, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=1, var_1_8=0, var_1_9=1] [L168] RET updateVariables() [L169] CALL step() [L57] var_1_27 = (((((var_1_28) < 0 ) ? -(var_1_28) : (var_1_28))) - var_1_29) [L58] COND FALSE !(var_1_9 && var_1_11) [L61] COND TRUE var_1_28 > var_1_12 [L62] COND TRUE var_1_29 >= var_1_4 [L63] var_1_34 = 128u [L66] var_1_35 = var_1_20 [L67] COND FALSE !((var_1_9 && var_1_11) && (var_1_21 > var_1_15)) [L70] COND TRUE (((((var_1_20 / var_1_39)) > (var_1_20)) ? ((var_1_20 / var_1_39)) : (var_1_20))) > 100.3 [L71] COND FALSE !((var_1_15 - var_1_29) >= var_1_12) [L75] COND TRUE var_1_12 > ((var_1_29 >> 1) + var_1_21) [L76] var_1_40 = (((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))) + ((((var_1_29) < 0 ) ? -(var_1_29) : (var_1_29)))) [L78] COND TRUE var_1_11 || var_1_9 [L79] var_1_42 = 1 [L81] EXPR var_1_12 | var_1_12 [L81] COND TRUE var_1_28 > (var_1_12 | var_1_12) [L82] var_1_43 = ((((var_1_20) > ((((((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))) < 0 ) ? -((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))) : ((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))))))) ? (var_1_20) : ((((((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))) < 0 ) ? -((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))) : ((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))))))) [L84] var_1_45 = var_1_28 [L85] var_1_46 = var_1_15 [L86] var_1_47 = var_1_12 [L87] COND FALSE !((last_1_var_1_9 && var_1_11) && (50 > var_1_8)) [L94] var_1_12 = var_1_15 [L96] unsigned char stepLocal_1 = var_1_10; [L97] COND TRUE (var_1_12 != var_1_4) || stepLocal_1 [L98] var_1_9 = var_1_11 [L100] var_1_26 = var_1_12 [L101] COND FALSE !((var_1_9 && var_1_11) && var_1_9) [L104] var_1_21 = ((23370 - var_1_15) + var_1_12) [L106] signed long int stepLocal_2 = -4; [L107] COND FALSE !(! (-4 < var_1_12)) [L110] COND FALSE !(stepLocal_2 > var_1_21) [L114] var_1_16 = (((((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) < (var_1_15)) ? ((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) : (var_1_15))) [L115] var_1_25 = var_1_20 [L116] unsigned short int stepLocal_0 = var_1_16; [L117] COND FALSE !(((var_1_16 * var_1_16) / var_1_4) <= stepLocal_0) [L120] var_1_1 = (var_1_12 + var_1_12) [L122] COND TRUE (var_1_16 - ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) < (var_1_12 - var_1_16) [L123] var_1_17 = var_1_20 [L169] RET step() [L170] CALL, EXPR property() [L160-L161] return (((((((((((var_1_16 * var_1_16) / var_1_4) <= var_1_16) ? (var_1_1 == ((unsigned short int) var_1_12)) : (var_1_1 == ((unsigned short int) (var_1_12 + var_1_12)))) && (((var_1_12 != var_1_4) || var_1_10) ? (var_1_9 == ((unsigned char) var_1_11)) : 1)) && (((last_1_var_1_9 && var_1_11) && (50 > var_1_8)) ? (((- last_1_var_1_24) < last_1_var_1_24) ? (last_1_var_1_9 ? (var_1_12 == ((unsigned char) 5)) : 1) : 1) : (var_1_12 == ((unsigned char) var_1_15)))) && (var_1_16 == ((unsigned short int) (((((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) < (var_1_15)) ? ((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) : (var_1_15)))))) && (((var_1_16 - ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) < (var_1_12 - var_1_16)) ? (var_1_17 == ((float) var_1_20)) : 1)) && (((var_1_9 && var_1_11) && var_1_9) ? (var_1_21 == ((unsigned short int) (var_1_26 + (var_1_15 + ((((var_1_12) > (var_1_12)) ? (var_1_12) : (var_1_12))))))) : (var_1_21 == ((unsigned short int) ((23370 - var_1_15) + var_1_12))))) && ((! (-4 < var_1_12)) ? (var_1_24 == ((float) var_1_20)) : ((-4 > var_1_21) ? (var_1_24 == ((float) 10.6f)) : 1))) && (var_1_25 == ((double) var_1_20))) && (var_1_26 == ((signed long int) var_1_12)) ; [L170] RET, EXPR property() [L170] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=4, var_1_15=4, var_1_16=4, var_1_17=2, var_1_1=8, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=4, var_1_27=-1, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=128, var_1_35=2, var_1_37=64, var_1_38=8, var_1_39=3, var_1_40=22, var_1_42=1, var_1_43=2, var_1_45=17, var_1_46=4, var_1_47=16, var_1_4=1, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=4, var_1_15=4, var_1_16=4, var_1_17=2, var_1_1=8, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=4, var_1_27=-1, var_1_28=17, var_1_29=18, var_1_30=0, var_1_34=128, var_1_35=2, var_1_37=64, var_1_38=8, var_1_39=3, var_1_40=22, var_1_42=1, var_1_43=2, var_1_45=17, var_1_46=4, var_1_47=16, var_1_4=1, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 18, 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=36occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 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 [2023-11-19 04:49:18,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 176f03b1400c1ac7dc9e88fd771da3300863068aea109920745c2a40ee9af7e9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:49:20,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:49:20,934 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:49:20,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:49:20,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:49:20,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:49:20,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:49:20,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:49:20,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:49:20,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:49:20,999 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:49:20,999 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:49:21,000 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:49:21,002 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:49:21,003 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:49:21,003 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:49:21,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:49:21,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:49:21,005 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:49:21,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:49:21,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:49:21,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:49:21,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:49:21,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:49:21,008 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:49:21,009 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:49:21,009 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:49:21,010 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:49:21,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:49:21,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:49:21,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:49:21,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:49:21,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:49:21,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:21,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:49:21,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:49:21,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:49:21,014 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:49:21,014 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:49:21,015 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:49:21,015 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:49:21,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:49:21,016 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_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 176f03b1400c1ac7dc9e88fd771da3300863068aea109920745c2a40ee9af7e9 [2023-11-19 04:49:21,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:49:21,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:49:21,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:49:21,426 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:49:21,427 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:49:21,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i [2023-11-19 04:49:24,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:49:24,987 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:49:24,988 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i [2023-11-19 04:49:25,011 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/data/8141fdb3a/6a29774512b340dd9ce59ccb5bb4c07d/FLAG3ae055460 [2023-11-19 04:49:25,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/data/8141fdb3a/6a29774512b340dd9ce59ccb5bb4c07d [2023-11-19 04:49:25,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:49:25,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:49:25,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:25,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:49:25,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:49:25,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a077bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25, skipping insertion in model container [2023-11-19 04:49:25,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,106 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:49:25,267 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_a9a7c52d-5cfa-4981-a620-88eff0cbe232/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i[919,932] [2023-11-19 04:49:25,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:25,409 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:49:25,422 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_a9a7c52d-5cfa-4981-a620-88eff0cbe232/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i[919,932] [2023-11-19 04:49:25,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:25,518 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:49:25,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25 WrapperNode [2023-11-19 04:49:25,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:25,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:25,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:49:25,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:49:25,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,610 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159 [2023-11-19 04:49:25,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:25,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:49:25,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:49:25,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:49:25,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:49:25,702 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:49:25,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:49:25,703 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:49:25,704 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (1/1) ... [2023-11-19 04:49:25,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:25,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:49:25,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:49:25,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:49:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:49:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:49:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:49:25,828 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:49:25,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:49:25,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:49:25,953 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:49:25,955 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:49:30,053 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:49:30,063 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:49:30,063 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:49:30,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:49:30 BoogieIcfgContainer [2023-11-19 04:49:30,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:49:30,071 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:49:30,071 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:49:30,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:49:30,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:49:25" (1/3) ... [2023-11-19 04:49:30,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6abbff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:49:30, skipping insertion in model container [2023-11-19 04:49:30,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:25" (2/3) ... [2023-11-19 04:49:30,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6abbff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:49:30, skipping insertion in model container [2023-11-19 04:49:30,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:49:30" (3/3) ... [2023-11-19 04:49:30,079 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i [2023-11-19 04:49:30,101 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:49:30,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:49:30,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:49:30,165 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e939cd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:49:30,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:49:30,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 49 states have (on average 1.469387755102041) internal successors, (72), 50 states have internal predecessors, (72), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:49:30,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-19 04:49:30,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:30,190 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:30,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:49:30,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1929066064, now seen corresponding path program 1 times [2023-11-19 04:49:30,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:49:30,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521103355] [2023-11-19 04:49:30,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:30,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:30,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:49:30,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:49:30,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:49:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:30,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:49:30,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:49:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-19 04:49:31,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:49:31,059 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:49:31,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521103355] [2023-11-19 04:49:31,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521103355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:31,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:31,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:49:31,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712668710] [2023-11-19 04:49:31,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:31,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:49:31,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:49:31,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:49:31,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:49:31,123 INFO L87 Difference]: Start difference. First operand has 70 states, 49 states have (on average 1.469387755102041) internal successors, (72), 50 states have internal predecessors, (72), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 04:49:31,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:31,179 INFO L93 Difference]: Finished difference Result 133 states and 228 transitions. [2023-11-19 04:49:31,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:49:31,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 127 [2023-11-19 04:49:31,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:31,192 INFO L225 Difference]: With dead ends: 133 [2023-11-19 04:49:31,192 INFO L226 Difference]: Without dead ends: 66 [2023-11-19 04:49:31,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:49:31,198 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:31,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:49:31,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-19 04:49:31,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-19 04:49:31,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 46 states have (on average 1.391304347826087) internal successors, (64), 46 states have internal predecessors, (64), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:49:31,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 100 transitions. [2023-11-19 04:49:31,247 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 100 transitions. Word has length 127 [2023-11-19 04:49:31,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:31,248 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 100 transitions. [2023-11-19 04:49:31,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 04:49:31,249 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 100 transitions. [2023-11-19 04:49:31,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 04:49:31,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:31,253 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:31,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:49:31,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:31,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:49:31,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:31,465 INFO L85 PathProgramCache]: Analyzing trace with hash 976755230, now seen corresponding path program 1 times [2023-11-19 04:49:31,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:49:31,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905535781] [2023-11-19 04:49:31,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:31,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:31,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:49:31,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:49:31,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:49:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:32,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:49:32,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:49:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 321 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 04:49:32,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:49:33,011 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-19 04:49:33,011 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:49:33,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905535781] [2023-11-19 04:49:33,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905535781] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:49:33,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1980359014] [2023-11-19 04:49:33,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:33,018 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:49:33,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:49:33,024 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:49:33,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 04:49:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:33,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:49:33,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:49:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 04:49:33,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:49:33,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1980359014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:33,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:49:33,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 8 [2023-11-19 04:49:33,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613188697] [2023-11-19 04:49:33,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:33,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:49:33,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:49:33,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:49:33,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:49:33,882 INFO L87 Difference]: Start difference. First operand 66 states and 100 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:49:34,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:34,439 INFO L93 Difference]: Finished difference Result 209 states and 312 transitions. [2023-11-19 04:49:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:49:34,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2023-11-19 04:49:34,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:34,446 INFO L225 Difference]: With dead ends: 209 [2023-11-19 04:49:34,450 INFO L226 Difference]: Without dead ends: 146 [2023-11-19 04:49:34,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 373 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:49:34,453 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:34,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 251 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 04:49:34,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-19 04:49:34,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 113. [2023-11-19 04:49:34,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 85 states have (on average 1.411764705882353) internal successors, (120), 86 states have internal predecessors, (120), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 04:49:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 170 transitions. [2023-11-19 04:49:34,500 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 170 transitions. Word has length 128 [2023-11-19 04:49:34,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:34,503 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 170 transitions. [2023-11-19 04:49:34,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:49:34,504 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 170 transitions. [2023-11-19 04:49:34,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 04:49:34,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:34,517 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:34,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:49:34,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:49:34,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 04:49:34,929 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:49:34,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1399457056, now seen corresponding path program 1 times [2023-11-19 04:49:34,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:49:34,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30140097] [2023-11-19 04:49:34,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:34,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:34,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:49:34,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:49:34,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:49:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:35,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:49:35,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:49:35,948 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 321 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 04:49:35,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:49:36,408 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-19 04:49:36,408 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:49:36,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30140097] [2023-11-19 04:49:36,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30140097] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:49:36,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [124290178] [2023-11-19 04:49:36,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:36,410 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:49:36,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:49:36,428 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:49:36,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 04:49:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:36,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:49:36,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:49:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 04:49:37,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:49:37,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [124290178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:37,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:49:37,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 9 [2023-11-19 04:49:37,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738300581] [2023-11-19 04:49:37,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:37,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:49:37,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:49:37,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:49:37,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:49:37,744 INFO L87 Difference]: Start difference. First operand 113 states and 170 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:49:38,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:38,350 INFO L93 Difference]: Finished difference Result 361 states and 537 transitions. [2023-11-19 04:49:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:49:38,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2023-11-19 04:49:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:38,356 INFO L225 Difference]: With dead ends: 361 [2023-11-19 04:49:38,357 INFO L226 Difference]: Without dead ends: 251 [2023-11-19 04:49:38,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 372 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:49:38,360 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 138 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:38,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 310 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 04:49:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-19 04:49:38,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 214. [2023-11-19 04:49:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 159 states have (on average 1.3962264150943395) internal successors, (222), 161 states have internal predecessors, (222), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-19 04:49:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 322 transitions. [2023-11-19 04:49:38,404 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 322 transitions. Word has length 128 [2023-11-19 04:49:38,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:38,405 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 322 transitions. [2023-11-19 04:49:38,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:49:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 322 transitions. [2023-11-19 04:49:38,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 04:49:38,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:38,408 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:38,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 04:49:38,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:49:38,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:38,813 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:49:38,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:38,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2100521634, now seen corresponding path program 1 times [2023-11-19 04:49:38,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:49:38,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840281610] [2023-11-19 04:49:38,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:38,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:38,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:49:38,816 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:49:38,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 04:49:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:39,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:49:39,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:49:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 04:49:39,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:49:39,305 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:49:39,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840281610] [2023-11-19 04:49:39,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840281610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:39,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:39,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:39,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223208095] [2023-11-19 04:49:39,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:39,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:49:39,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:49:39,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:49:39,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:49:39,309 INFO L87 Difference]: Start difference. First operand 214 states and 322 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:49:39,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:39,590 INFO L93 Difference]: Finished difference Result 425 states and 641 transitions. [2023-11-19 04:49:39,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:49:39,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2023-11-19 04:49:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:39,605 INFO L225 Difference]: With dead ends: 425 [2023-11-19 04:49:39,605 INFO L226 Difference]: Without dead ends: 214 [2023-11-19 04:49:39,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:49:39,615 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 6 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:39,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 187 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:49:39,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-19 04:49:39,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2023-11-19 04:49:39,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 159 states have (on average 1.371069182389937) internal successors, (218), 161 states have internal predecessors, (218), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-19 04:49:39,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 318 transitions. [2023-11-19 04:49:39,656 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 318 transitions. Word has length 128 [2023-11-19 04:49:39,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:39,657 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 318 transitions. [2023-11-19 04:49:39,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:49:39,657 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 318 transitions. [2023-11-19 04:49:39,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 04:49:39,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:39,659 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:39,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 04:49:39,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:39,872 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:49:39,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:39,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1291175008, now seen corresponding path program 1 times [2023-11-19 04:49:39,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:49:39,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159952801] [2023-11-19 04:49:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:39,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:39,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:49:39,876 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:49:39,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 04:49:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:40,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:49:40,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:49:40,566 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 04:49:40,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:49:40,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:49:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159952801] [2023-11-19 04:49:40,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159952801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:40,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:40,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:49:40,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282642162] [2023-11-19 04:49:40,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:40,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:49:40,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:49:40,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:49:40,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:49:40,571 INFO L87 Difference]: Start difference. First operand 214 states and 318 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:49:42,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:42,936 INFO L93 Difference]: Finished difference Result 875 states and 1284 transitions. [2023-11-19 04:49:42,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:49:42,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2023-11-19 04:49:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:42,953 INFO L225 Difference]: With dead ends: 875 [2023-11-19 04:49:42,954 INFO L226 Difference]: Without dead ends: 664 [2023-11-19 04:49:42,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:49:42,956 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 188 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:42,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 428 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 04:49:42,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-11-19 04:49:43,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 372. [2023-11-19 04:49:43,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 261 states have (on average 1.2911877394636015) internal successors, (337), 267 states have internal predecessors, (337), 100 states have call successors, (100), 10 states have call predecessors, (100), 10 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-19 04:49:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 537 transitions. [2023-11-19 04:49:43,037 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 537 transitions. Word has length 128 [2023-11-19 04:49:43,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:43,038 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 537 transitions. [2023-11-19 04:49:43,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:49:43,038 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 537 transitions. [2023-11-19 04:49:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 04:49:43,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:43,041 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:43,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-19 04:49:43,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:43,255 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:49:43,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:43,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1293022050, now seen corresponding path program 1 times [2023-11-19 04:49:43,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:49:43,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935112751] [2023-11-19 04:49:43,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:43,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:49:43,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:49:43,261 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:49:43,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a7c52d-5cfa-4981-a620-88eff0cbe232/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-19 04:49:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:43,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 04:49:43,809 INFO L285 TraceCheckSpWp]: Computing forward predicates...