./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.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_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 d7eabdbab374be563cd8848c2ea71ab0b8442a8d3524e27c1a68fc35b28e5144 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:51:58,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:51:59,100 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:51:59,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:51:59,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:51:59,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:51:59,154 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:51:59,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:51:59,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:51:59,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:51:59,157 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:51:59,158 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:51:59,158 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:51:59,159 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:51:59,160 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:51:59,160 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:51:59,161 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:51:59,162 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:51:59,162 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:51:59,163 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:51:59,163 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:51:59,164 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:51:59,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:51:59,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:51:59,166 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:51:59,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:51:59,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:51:59,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:51:59,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:51:59,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:51:59,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:51:59,170 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:51:59,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:51:59,170 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:51:59,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:51:59,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:51:59,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:59,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:51:59,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:51:59,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:51:59,174 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:51:59,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:51:59,175 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:51:59,175 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:51:59,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:51:59,176 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_c43d5a33-b29d-4a3e-8bf4-d31632225967/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7eabdbab374be563cd8848c2ea71ab0b8442a8d3524e27c1a68fc35b28e5144 [2023-11-19 04:51:59,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:51:59,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:51:59,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:51:59,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:51:59,575 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:51:59,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-19 04:52:02,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:52:02,950 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:52:02,950 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-19 04:52:02,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/data/9dbc1c86d/c2f6158d8d384c488aa5ee4195ff4624/FLAG2bd337a7f [2023-11-19 04:52:02,976 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/data/9dbc1c86d/c2f6158d8d384c488aa5ee4195ff4624 [2023-11-19 04:52:02,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:52:02,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:52:02,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:02,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:52:02,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:52:02,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:02" (1/1) ... [2023-11-19 04:52:02,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce693a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:02, skipping insertion in model container [2023-11-19 04:52:02,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:02" (1/1) ... [2023-11-19 04:52:03,038 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:52:03,214 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_c43d5a33-b29d-4a3e-8bf4-d31632225967/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i[915,928] [2023-11-19 04:52:03,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:03,328 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:52:03,341 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_c43d5a33-b29d-4a3e-8bf4-d31632225967/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i[915,928] [2023-11-19 04:52:03,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:03,411 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:52:03,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03 WrapperNode [2023-11-19 04:52:03,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:03,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:03,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:52:03,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:52:03,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,500 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197 [2023-11-19 04:52:03,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:03,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:52:03,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:52:03,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:52:03,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,518 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:52:03,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:52:03,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:52:03,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:52:03,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (1/1) ... [2023-11-19 04:52:03,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:03,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:03,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:52:03,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:52:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:52:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:52:03,654 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:52:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:52:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:52:03,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:52:03,803 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:52:03,805 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:52:04,435 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:52:05,007 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:52:05,008 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:52:05,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:05 BoogieIcfgContainer [2023-11-19 04:52:05,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:52:05,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:52:05,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:52:05,024 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:52:05,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:52:02" (1/3) ... [2023-11-19 04:52:05,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a200a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:05, skipping insertion in model container [2023-11-19 04:52:05,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:03" (2/3) ... [2023-11-19 04:52:05,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a200a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:05, skipping insertion in model container [2023-11-19 04:52:05,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:05" (3/3) ... [2023-11-19 04:52:05,031 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-19 04:52:05,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:52:05,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:52:05,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:52:05,125 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;@18a6a7ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:52:05,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:52:05,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 04:52:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 04:52:05,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:05,145 INFO L195 NwaCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:05,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:05,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:05,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1365826670, now seen corresponding path program 1 times [2023-11-19 04:52:05,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:05,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630751985] [2023-11-19 04:52:05,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:05,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:52:05,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:52:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:52:06,352 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:52:06,356 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:52:06,357 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:52:06,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:52:06,364 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:52:06,371 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:52:06,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:52:06 BoogieIcfgContainer [2023-11-19 04:52:06,503 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:52:06,505 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:52:06,505 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:52:06,506 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:52:06,506 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:05" (3/4) ... [2023-11-19 04:52:06,510 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:52:06,511 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:52:06,513 INFO L158 Benchmark]: Toolchain (without parser) took 3531.96ms. Allocated memory was 188.7MB in the beginning and 253.8MB in the end (delta: 65.0MB). Free memory was 153.8MB in the beginning and 199.8MB in the end (delta: -46.0MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-11-19 04:52:06,513 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 188.7MB. Free memory was 157.8MB in the beginning and 157.6MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:52:06,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.29ms. Allocated memory is still 188.7MB. Free memory was 153.8MB in the beginning and 137.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:52:06,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.88ms. Allocated memory is still 188.7MB. Free memory was 137.3MB in the beginning and 132.2MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 04:52:06,520 INFO L158 Benchmark]: Boogie Preprocessor took 60.52ms. Allocated memory is still 188.7MB. Free memory was 132.2MB in the beginning and 130.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:52:06,521 INFO L158 Benchmark]: RCFGBuilder took 1453.75ms. Allocated memory was 188.7MB in the beginning and 253.8MB in the end (delta: 65.0MB). Free memory was 130.1MB in the beginning and 184.3MB in the end (delta: -54.1MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2023-11-19 04:52:06,523 INFO L158 Benchmark]: TraceAbstraction took 1482.77ms. Allocated memory is still 253.8MB. Free memory was 183.2MB in the beginning and 199.8MB in the end (delta: -16.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2023-11-19 04:52:06,523 INFO L158 Benchmark]: Witness Printer took 6.27ms. Allocated memory is still 253.8MB. Free memory is still 199.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:52:06,531 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 188.7MB. Free memory was 157.8MB in the beginning and 157.6MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.29ms. Allocated memory is still 188.7MB. Free memory was 153.8MB in the beginning and 137.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.88ms. Allocated memory is still 188.7MB. Free memory was 137.3MB in the beginning and 132.2MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.52ms. Allocated memory is still 188.7MB. Free memory was 132.2MB in the beginning and 130.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1453.75ms. Allocated memory was 188.7MB in the beginning and 253.8MB in the end (delta: 65.0MB). Free memory was 130.1MB in the beginning and 184.3MB in the end (delta: -54.1MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1482.77ms. Allocated memory is still 253.8MB. Free memory was 183.2MB in the beginning and 199.8MB in the end (delta: -16.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Witness Printer took 6.27ms. Allocated memory is still 253.8MB. Free memory is still 199.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 179, overapproximation of shiftLeft at line 111, overapproximation of someBinaryArithmeticDOUBLEoperation at line 72, overapproximation of someBinaryDOUBLEComparisonOperation at line 109. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 2; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 0; [L25] unsigned short int var_1_5 = 34011; [L26] unsigned short int var_1_6 = 2; [L27] signed short int var_1_7 = -4; [L28] signed long int var_1_9 = -4; [L29] unsigned short int var_1_10 = 4; [L30] double var_1_12 = 1.8; [L31] double var_1_13 = 49.5; [L32] double var_1_14 = 0.0; [L33] double var_1_15 = 8.5; [L34] unsigned long int var_1_16 = 4; [L35] float var_1_17 = 3.65; [L36] unsigned char var_1_18 = 0; [L37] signed long int var_1_19 = 32; [L38] signed long int var_1_20 = 1000000000; [L39] signed long int var_1_21 = 1141305717; [L40] unsigned char var_1_22 = 50; [L41] unsigned char var_1_23 = 0; [L42] unsigned short int var_1_24 = 2; [L43] signed short int var_1_25 = -16; [L44] double var_1_26 = 15.6; [L45] double var_1_27 = 4.25; [L46] unsigned long int var_1_28 = 10; [L47] unsigned char last_1_var_1_22 = 50; [L183] isInitial = 1 [L184] FCALL initially() [L185] COND TRUE 1 [L186] CALL updateLastVariables() [L176] last_1_var_1_22 = var_1_22 [L186] RET updateLastVariables() [L187] CALL updateVariables() [L138] var_1_2 = __VERIFIER_nondet_uchar() [L139] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L140] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L141] var_1_3 = __VERIFIER_nondet_uchar() [L142] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L143] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L144] var_1_5 = __VERIFIER_nondet_ushort() [L145] CALL assume_abort_if_not(var_1_5 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_5 >= 32767) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=2, var_1_7=-4, var_1_9=-4] [L146] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=2, var_1_7=-4, var_1_9=-4] [L147] var_1_6 = __VERIFIER_nondet_ushort() [L148] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L149] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L150] var_1_13 = __VERIFIER_nondet_double() [L151] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L152] var_1_14 = __VERIFIER_nondet_double() [L153] CALL assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L154] var_1_15 = __VERIFIER_nondet_double() [L155] CALL assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L156] var_1_18 = __VERIFIER_nondet_uchar() [L157] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L158] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L159] var_1_20 = __VERIFIER_nondet_long() [L160] CALL assume_abort_if_not(var_1_20 >= 536870911) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_20 >= 536870911) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L161] CALL assume_abort_if_not(var_1_20 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_20 <= 1073741823) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L162] var_1_21 = __VERIFIER_nondet_long() [L163] CALL assume_abort_if_not(var_1_21 >= 1073741822) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_21 >= 1073741822) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L164] CALL assume_abort_if_not(var_1_21 <= 2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_21 <= 2147483646) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L165] var_1_23 = __VERIFIER_nondet_uchar() [L166] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L167] CALL assume_abort_if_not(var_1_23 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_23 <= 254) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L168] var_1_26 = __VERIFIER_nondet_double() [L169] CALL assume_abort_if_not((var_1_26 >= -922337.2036854776000e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 9223372.036854776000e+12F && var_1_26 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=1141305723, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not((var_1_26 >= -922337.2036854776000e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 9223372.036854776000e+12F && var_1_26 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=1141305723, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L170] CALL assume_abort_if_not(var_1_26 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=1141305723, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_26 != 0.0F) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=1141305723, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L171] var_1_27 = __VERIFIER_nondet_double() [L172] CALL assume_abort_if_not((var_1_27 >= -922337.2036854776000e+13F && var_1_27 <= -1.0e-20F) || (var_1_27 <= 9223372.036854776000e+12F && var_1_27 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=1141305723, var_1_27=1141305724, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not((var_1_27 >= -922337.2036854776000e+13F && var_1_27 <= -1.0e-20F) || (var_1_27 <= 9223372.036854776000e+12F && var_1_27 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=1141305723, var_1_27=1141305724, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L173] CALL assume_abort_if_not(var_1_27 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=1141305723, var_1_27=1141305724, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_27 != 0.0F) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1073741822, var_1_22=50, var_1_23=144, var_1_24=2, var_1_25=-16, var_1_26=1141305723, var_1_27=1141305724, var_1_28=10, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=-4, var_1_9=-4] [L187] RET updateVariables() [L188] CALL step() [L51] var_1_9 = (((((last_1_var_1_22) < 0 ) ? -(last_1_var_1_22) : (last_1_var_1_22))) - last_1_var_1_22) [L52] unsigned char stepLocal_2 = var_1_18; [L53] COND TRUE stepLocal_2 || ((var_1_6 == var_1_9) || (var_1_2 && var_1_3)) [L54] var_1_22 = var_1_23 [L58] COND TRUE var_1_2 || var_1_3 [L59] var_1_1 = ((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))) [L63] COND FALSE !(var_1_22 <= (- 500)) [L68] var_1_7 = var_1_22 [L70] var_1_10 = (var_1_5 - (var_1_22 + 1000)) [L71] COND FALSE !(! var_1_3) [L74] var_1_12 = (var_1_14 - var_1_13) [L76] unsigned char stepLocal_0 = var_1_22; [L77] COND FALSE !(\read(var_1_2)) [L80] COND TRUE ((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22))) <= stepLocal_0 [L81] var_1_16 = 128u [L86] COND FALSE !(\read(var_1_18)) [L89] COND TRUE \read(var_1_3) [L90] COND FALSE !(\read(var_1_2)) [L93] var_1_17 = 0.050000000000000044f [L99] var_1_28 = var_1_21 [L100] COND TRUE ! ((! var_1_3) && var_1_18) [L101] var_1_24 = ((((((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) < (var_1_28)) ? (((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) : (var_1_28))) [L107] unsigned short int stepLocal_4 = var_1_24; [L108] unsigned short int stepLocal_3 = var_1_10; [L109] COND FALSE !(((var_1_14 - var_1_13) / ((((var_1_26) > (var_1_27)) ? (var_1_26) : (var_1_27)))) >= var_1_15) [L122] unsigned char stepLocal_1 = var_1_22; [L123] COND TRUE var_1_24 >= stepLocal_1 [L124] COND TRUE ! var_1_2 [L125] var_1_19 = (var_1_22 - (var_1_22 + (var_1_20 - 5))) [L188] RET step() [L189] CALL, EXPR property() [L179] EXPR (((((((((((var_1_2 || var_1_3) ? (var_1_1 == ((unsigned short int) ((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))))) : (var_1_1 == ((unsigned short int) (((((var_1_5 - var_1_22)) < (var_1_22)) ? ((var_1_5 - var_1_22)) : (var_1_22)))))) && ((var_1_22 <= (- 500)) ? (var_1_2 ? (var_1_7 == ((signed short int) (var_1_22 - 64))) : 1) : (var_1_7 == ((signed short int) var_1_22)))) && (var_1_9 == ((signed long int) (((((last_1_var_1_22) < 0 ) ? -(last_1_var_1_22) : (last_1_var_1_22))) - last_1_var_1_22)))) && (var_1_10 == ((unsigned short int) (var_1_5 - (var_1_22 + 1000))))) && ((! var_1_3) ? (var_1_12 == ((double) ((var_1_13 - (var_1_14 - 63.5)) + var_1_15))) : (var_1_12 == ((double) (var_1_14 - var_1_13))))) && (var_1_2 ? (var_1_16 == ((unsigned long int) (var_1_9 + 200u))) : ((((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22))) <= var_1_22) ? (var_1_16 == ((unsigned long int) 128u)) : (var_1_16 == ((unsigned long int) var_1_22))))) && (var_1_18 ? (var_1_17 == ((float) (((((var_1_14) < (255.4f)) ? (var_1_14) : (255.4f))) + var_1_13))) : (var_1_3 ? (var_1_2 ? (var_1_17 == ((float) var_1_15)) : (var_1_17 == ((float) 0.050000000000000044f))) : (var_1_17 == ((float) var_1_13))))) && ((var_1_24 >= var_1_22) ? ((! var_1_2) ? (var_1_19 == ((signed long int) (var_1_22 - (var_1_22 + (var_1_20 - 5))))) : (var_1_2 ? (var_1_18 ? (var_1_19 == ((signed long int) ((var_1_21 - ((((var_1_20) > (var_1_22)) ? (var_1_20) : (var_1_22)))) - (var_1_22 + ((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25))))))) : 1) : 1)) : (var_1_19 == ((signed long int) var_1_20)))) && ((var_1_18 || ((var_1_6 == var_1_9) || (var_1_2 && var_1_3))) ? (var_1_22 == ((unsigned char) var_1_23)) : (var_1_22 == ((unsigned char) var_1_23)))) && ((! ((! var_1_3) && var_1_18)) ? (var_1_24 == ((unsigned short int) ((((((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) < (var_1_28)) ? (((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) : (var_1_28))))) : ((var_1_22 < ((var_1_5 - var_1_23) * 32)) ? (var_1_24 == ((unsigned short int) var_1_22)) : 1))) && ((((var_1_14 - var_1_13) / ((((var_1_26) > (var_1_27)) ? (var_1_26) : (var_1_27)))) >= var_1_15) ? ((var_1_14 >= var_1_13) ? (((var_1_22 << var_1_22) <= var_1_24) ? (var_1_25 == ((signed short int) (((((var_1_22) < (var_1_16)) ? (var_1_22) : (var_1_16))) - var_1_23))) : (var_1_25 == ((signed short int) (var_1_16 + var_1_23)))) : ((var_1_5 == var_1_10) ? (var_1_25 == ((signed short int) var_1_16)) : 1)) : 1) [L179-L180] return ((((((((((((var_1_2 || var_1_3) ? (var_1_1 == ((unsigned short int) ((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))))) : (var_1_1 == ((unsigned short int) (((((var_1_5 - var_1_22)) < (var_1_22)) ? ((var_1_5 - var_1_22)) : (var_1_22)))))) && ((var_1_22 <= (- 500)) ? (var_1_2 ? (var_1_7 == ((signed short int) (var_1_22 - 64))) : 1) : (var_1_7 == ((signed short int) var_1_22)))) && (var_1_9 == ((signed long int) (((((last_1_var_1_22) < 0 ) ? -(last_1_var_1_22) : (last_1_var_1_22))) - last_1_var_1_22)))) && (var_1_10 == ((unsigned short int) (var_1_5 - (var_1_22 + 1000))))) && ((! var_1_3) ? (var_1_12 == ((double) ((var_1_13 - (var_1_14 - 63.5)) + var_1_15))) : (var_1_12 == ((double) (var_1_14 - var_1_13))))) && (var_1_2 ? (var_1_16 == ((unsigned long int) (var_1_9 + 200u))) : ((((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22))) <= var_1_22) ? (var_1_16 == ((unsigned long int) 128u)) : (var_1_16 == ((unsigned long int) var_1_22))))) && (var_1_18 ? (var_1_17 == ((float) (((((var_1_14) < (255.4f)) ? (var_1_14) : (255.4f))) + var_1_13))) : (var_1_3 ? (var_1_2 ? (var_1_17 == ((float) var_1_15)) : (var_1_17 == ((float) 0.050000000000000044f))) : (var_1_17 == ((float) var_1_13))))) && ((var_1_24 >= var_1_22) ? ((! var_1_2) ? (var_1_19 == ((signed long int) (var_1_22 - (var_1_22 + (var_1_20 - 5))))) : (var_1_2 ? (var_1_18 ? (var_1_19 == ((signed long int) ((var_1_21 - ((((var_1_20) > (var_1_22)) ? (var_1_20) : (var_1_22)))) - (var_1_22 + ((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25))))))) : 1) : 1)) : (var_1_19 == ((signed long int) var_1_20)))) && ((var_1_18 || ((var_1_6 == var_1_9) || (var_1_2 && var_1_3))) ? (var_1_22 == ((unsigned char) var_1_23)) : (var_1_22 == ((unsigned char) var_1_23)))) && ((! ((! var_1_3) && var_1_18)) ? (var_1_24 == ((unsigned short int) ((((((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) < (var_1_28)) ? (((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) : (var_1_28))))) : ((var_1_22 < ((var_1_5 - var_1_23) * 32)) ? (var_1_24 == ((unsigned short int) var_1_22)) : 1))) && ((((var_1_14 - var_1_13) / ((((var_1_26) > (var_1_27)) ? (var_1_26) : (var_1_27)))) >= var_1_15) ? ((var_1_14 >= var_1_13) ? (((var_1_22 << var_1_22) <= var_1_24) ? (var_1_25 == ((signed short int) (((((var_1_22) < (var_1_16)) ? (var_1_22) : (var_1_16))) - var_1_23))) : (var_1_25 == ((signed short int) (var_1_16 + var_1_23)))) : ((var_1_5 == var_1_10) ? (var_1_25 == ((signed short int) var_1_16)) : 1)) : 1)) && (var_1_28 == ((unsigned long int) var_1_21)) ; [L189] RET, EXPR property() [L189] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_22=50, var_1_10=64390, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=128, var_1_17=12500000000000011/250000000000000000, var_1_18=0, var_1_19=-1073741818, var_1_1=144, var_1_20=1073741823, var_1_21=1073741822, var_1_22=144, var_1_23=144, var_1_24=144, var_1_25=-16, var_1_26=1141305723, var_1_27=1141305724, var_1_28=1073741822, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=144, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_22=50, var_1_10=64390, var_1_13=12500000000000011/250000000000000000, var_1_14=1141305722, var_1_15=12500000000000011/250000000000000000, var_1_16=128, var_1_17=12500000000000011/250000000000000000, var_1_18=0, var_1_19=-1073741818, var_1_1=144, var_1_20=1073741823, var_1_21=1073741822, var_1_22=144, var_1_23=144, var_1_24=144, var_1_25=-16, var_1_26=1141305723, var_1_27=1141305724, var_1_28=1073741822, var_1_2=0, var_1_3=1, var_1_5=65534, var_1_6=0, var_1_7=144, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 23, 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=45occurred 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, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 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 04:52:06,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 d7eabdbab374be563cd8848c2ea71ab0b8442a8d3524e27c1a68fc35b28e5144 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:52:09,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:52:09,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:52:09,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:52:09,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:52:09,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:52:09,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:52:09,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:52:09,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:52:09,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:52:09,447 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:52:09,448 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:52:09,448 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:52:09,449 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:52:09,449 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:52:09,450 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:52:09,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:52:09,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:52:09,452 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:52:09,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:52:09,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:52:09,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:52:09,454 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:52:09,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:52:09,455 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:52:09,455 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:52:09,456 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:52:09,456 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:52:09,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:52:09,457 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:52:09,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:52:09,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:52:09,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:52:09,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:09,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:52:09,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:52:09,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:52:09,460 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:52:09,460 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:52:09,460 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:52:09,461 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:52:09,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:52:09,461 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_c43d5a33-b29d-4a3e-8bf4-d31632225967/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7eabdbab374be563cd8848c2ea71ab0b8442a8d3524e27c1a68fc35b28e5144 [2023-11-19 04:52:09,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:52:09,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:52:09,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:52:09,933 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:52:09,934 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:52:09,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-19 04:52:13,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:52:13,537 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:52:13,539 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-19 04:52:13,549 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/data/09fadd269/450a3cf49b3d4b1aaaf23b1fc0701ed2/FLAGc2c1589b2 [2023-11-19 04:52:13,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/data/09fadd269/450a3cf49b3d4b1aaaf23b1fc0701ed2 [2023-11-19 04:52:13,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:52:13,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:52:13,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:13,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:52:13,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:52:13,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:13,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6669297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13, skipping insertion in model container [2023-11-19 04:52:13,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:13,612 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:52:13,778 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_c43d5a33-b29d-4a3e-8bf4-d31632225967/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i[915,928] [2023-11-19 04:52:13,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:13,899 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:52:13,912 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_c43d5a33-b29d-4a3e-8bf4-d31632225967/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i[915,928] [2023-11-19 04:52:13,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:13,979 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:52:13,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13 WrapperNode [2023-11-19 04:52:13,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:13,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:13,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:52:13,981 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:52:13,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,059 INFO L138 Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 174 [2023-11-19 04:52:14,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:14,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:52:14,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:52:14,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:52:14,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:52:14,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:52:14,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:52:14,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:52:14,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (1/1) ... [2023-11-19 04:52:14,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:14,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:14,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:52:14,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:52:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:52:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:52:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:52:14,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:52:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:52:14,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:52:14,301 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:52:14,303 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:52:24,459 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:52:24,470 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:52:24,470 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:52:24,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:24 BoogieIcfgContainer [2023-11-19 04:52:24,476 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:52:24,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:52:24,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:52:24,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:52:24,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:52:13" (1/3) ... [2023-11-19 04:52:24,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a6a24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:24, skipping insertion in model container [2023-11-19 04:52:24,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:13" (2/3) ... [2023-11-19 04:52:24,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a6a24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:24, skipping insertion in model container [2023-11-19 04:52:24,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:24" (3/3) ... [2023-11-19 04:52:24,487 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-19 04:52:24,509 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:52:24,509 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:52:24,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:52:24,567 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;@1eb3187a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:52:24,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:52:24,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 04:52:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 04:52:24,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:24,592 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:24,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:24,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:24,600 INFO L85 PathProgramCache]: Analyzing trace with hash 699911681, now seen corresponding path program 1 times [2023-11-19 04:52:24,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:52:24,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247254747] [2023-11-19 04:52:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:24,618 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 04:52:24,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:52:24,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 04:52:24,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 04:52:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:26,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:52:26,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:52:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2023-11-19 04:52:26,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:52:26,472 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:52:26,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247254747] [2023-11-19 04:52:26,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247254747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:26,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:26,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:52:26,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625511523] [2023-11-19 04:52:26,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:26,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:52:26,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:52:26,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:52:26,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:52:26,525 INFO L87 Difference]: Start difference. First operand has 80 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-19 04:52:26,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:26,567 INFO L93 Difference]: Finished difference Result 152 states and 265 transitions. [2023-11-19 04:52:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:52:26,569 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 151 [2023-11-19 04:52:26,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:26,579 INFO L225 Difference]: With dead ends: 152 [2023-11-19 04:52:26,579 INFO L226 Difference]: Without dead ends: 75 [2023-11-19 04:52:26,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 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 04:52:26,587 INFO L413 NwaCegarLoop]: 115 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, 115 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 04:52:26,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:26,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-19 04:52:26,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-19 04:52:26,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.38) internal successors, (69), 50 states have internal predecessors, (69), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 04:52:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 115 transitions. [2023-11-19 04:52:26,645 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 115 transitions. Word has length 151 [2023-11-19 04:52:26,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:26,646 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 115 transitions. [2023-11-19 04:52:26,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-19 04:52:26,647 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 115 transitions. [2023-11-19 04:52:26,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 04:52:26,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:26,652 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:26,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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)] Ended with exit code 0 [2023-11-19 04:52:26,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 04:52:26,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:26,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:26,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1318276027, now seen corresponding path program 1 times [2023-11-19 04:52:26,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:52:26,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255169614] [2023-11-19 04:52:26,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:26,872 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 04:52:26,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:52:26,874 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 04:52:26,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 04:52:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:28,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:52:28,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:52:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-19 04:52:28,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:52:28,671 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:52:28,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255169614] [2023-11-19 04:52:28,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255169614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:28,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:28,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:52:28,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66197977] [2023-11-19 04:52:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:28,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:52:28,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:52:28,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:52:28,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:28,678 INFO L87 Difference]: Start difference. First operand 75 states and 115 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-19 04:52:30,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:32,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:35,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:37,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:39,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:41,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:43,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:44,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:44,135 INFO L93 Difference]: Finished difference Result 209 states and 314 transitions. [2023-11-19 04:52:44,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:52:44,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 151 [2023-11-19 04:52:44,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:44,144 INFO L225 Difference]: With dead ends: 209 [2023-11-19 04:52:44,147 INFO L226 Difference]: Without dead ends: 137 [2023-11-19 04:52:44,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:44,151 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 105 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:44,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 279 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 6 Unknown, 0 Unchecked, 15.4s Time] [2023-11-19 04:52:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-19 04:52:44,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 119. [2023-11-19 04:52:44,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 91 states have (on average 1.4285714285714286) internal successors, (130), 92 states have internal predecessors, (130), 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 04:52:44,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 180 transitions. [2023-11-19 04:52:44,208 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 180 transitions. Word has length 151 [2023-11-19 04:52:44,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:44,212 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 180 transitions. [2023-11-19 04:52:44,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-19 04:52:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 180 transitions. [2023-11-19 04:52:44,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 04:52:44,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:44,220 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:44,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 04:52:44,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 04:52:44,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:44,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:44,440 INFO L85 PathProgramCache]: Analyzing trace with hash 307158777, now seen corresponding path program 1 times [2023-11-19 04:52:44,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:52:44,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935928098] [2023-11-19 04:52:44,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:44,441 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 04:52:44,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:52:44,443 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/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 04:52:44,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:52:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:46,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:52:46,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:52:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 472 proven. 21 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-19 04:52:48,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:52:50,794 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:52:50,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935928098] [2023-11-19 04:52:50,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935928098] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:52:50,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [995625326] [2023-11-19 04:52:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:50,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:52:50,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:52:50,801 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:52:50,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 04:52:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:55,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:52:55,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:52:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 472 proven. 21 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-19 04:52:57,058 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:52:57,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [995625326] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:52:57,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388107494] [2023-11-19 04:52:57,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:57,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:52:57,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:57,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:52:57,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5a33-b29d-4a3e-8bf4-d31632225967/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process