./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.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_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/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_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/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_2cb59715-03c1-4881-9af6-06e8bbd11efa/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 f51ee4a7220dc2b51ff1b4163bfc3c5ced88b90b523c25a3c78fe5519978425e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:14:31,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:14:31,910 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:14:31,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:14:31,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:14:31,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:14:31,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:14:31,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:14:31,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:14:31,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:14:31,946 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:14:31,946 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:14:31,947 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:14:31,948 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:14:31,948 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:14:31,949 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:14:31,949 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:14:31,950 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:14:31,951 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:14:31,951 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:14:31,952 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:14:31,955 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:14:31,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:14:31,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:14:31,964 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:14:31,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:14:31,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:14:31,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:14:31,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:14:31,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:14:31,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:14:31,967 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:14:31,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:14:31,968 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:14:31,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:14:31,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:14:31,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:31,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:14:31,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:14:31,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:14:31,971 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:14:31,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:14:31,972 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:14:31,973 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:14:31,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:14:31,973 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_2cb59715-03c1-4881-9af6-06e8bbd11efa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f51ee4a7220dc2b51ff1b4163bfc3c5ced88b90b523c25a3c78fe5519978425e [2023-11-19 05:14:32,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:14:32,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:14:32,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:14:32,364 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:14:32,365 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:14:32,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i [2023-11-19 05:14:35,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:14:35,961 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:14:35,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i [2023-11-19 05:14:35,985 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/data/9fb423911/8d39b849a3ea4fad8b8c2d2186417d14/FLAG6ca95f684 [2023-11-19 05:14:35,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/data/9fb423911/8d39b849a3ea4fad8b8c2d2186417d14 [2023-11-19 05:14:36,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:14:36,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:14:36,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:36,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:14:36,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:14:36,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26aaa60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36, skipping insertion in model container [2023-11-19 05:14:36,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,048 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:14:36,210 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_2cb59715-03c1-4881-9af6-06e8bbd11efa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i[915,928] [2023-11-19 05:14:36,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:36,296 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:14:36,312 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_2cb59715-03c1-4881-9af6-06e8bbd11efa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i[915,928] [2023-11-19 05:14:36,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:36,368 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:14:36,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36 WrapperNode [2023-11-19 05:14:36,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:36,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:36,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:14:36,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:14:36,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,431 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 178 [2023-11-19 05:14:36,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:36,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:14:36,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:14:36,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:14:36,447 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:14:36,478 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:14:36,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:14:36,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:14:36,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2023-11-19 05:14:36,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:36,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:36,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:14:36,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:14:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:14:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:14:36,584 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:14:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:14:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:14:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:14:36,725 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:14:36,727 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:14:37,135 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:14:37,515 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:14:37,515 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:14:37,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:37 BoogieIcfgContainer [2023-11-19 05:14:37,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:14:37,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:14:37,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:14:37,531 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:14:37,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:14:36" (1/3) ... [2023-11-19 05:14:37,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bf5177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:37, skipping insertion in model container [2023-11-19 05:14:37,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (2/3) ... [2023-11-19 05:14:37,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bf5177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:37, skipping insertion in model container [2023-11-19 05:14:37,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:37" (3/3) ... [2023-11-19 05:14:37,537 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-11.i [2023-11-19 05:14:37,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:14:37,558 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:14:37,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:14:37,637 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;@653ace68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:14:37,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:14:37,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 05:14:37,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 05:14:37,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:37,659 INFO L195 NwaCegarLoop]: trace histogram [24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:37,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:37,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:37,667 INFO L85 PathProgramCache]: Analyzing trace with hash -447553662, now seen corresponding path program 1 times [2023-11-19 05:14:37,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:37,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235597965] [2023-11-19 05:14:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:37,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:37,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:14:37,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617093315] [2023-11-19 05:14:37,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:37,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:37,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:37,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:37,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:14:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:14:38,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:14:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:14:38,393 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:14:38,396 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:14:38,397 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:14:38,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:38,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:14:38,618 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:14:38,623 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:14:38,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:14:38 BoogieIcfgContainer [2023-11-19 05:14:38,780 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:14:38,781 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:14:38,781 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:14:38,781 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:14:38,782 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:37" (3/4) ... [2023-11-19 05:14:38,784 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:14:38,785 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:14:38,787 INFO L158 Benchmark]: Toolchain (without parser) took 2783.23ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 100.3MB in the beginning and 98.5MB in the end (delta: 1.8MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2023-11-19 05:14:38,788 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 148.9MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:14:38,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.06ms. Allocated memory is still 148.9MB. Free memory was 100.3MB in the beginning and 86.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:14:38,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.43ms. Allocated memory is still 148.9MB. Free memory was 86.0MB in the beginning and 83.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:14:38,792 INFO L158 Benchmark]: Boogie Preprocessor took 45.17ms. Allocated memory is still 148.9MB. Free memory was 83.2MB in the beginning and 81.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:14:38,796 INFO L158 Benchmark]: RCFGBuilder took 1043.52ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 81.5MB in the beginning and 147.9MB in the end (delta: -66.4MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-11-19 05:14:38,797 INFO L158 Benchmark]: TraceAbstraction took 1253.48ms. Allocated memory is still 199.2MB. Free memory was 146.8MB in the beginning and 98.5MB in the end (delta: 48.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-19 05:14:38,797 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 199.2MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:14:38,800 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 148.9MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.06ms. Allocated memory is still 148.9MB. Free memory was 100.3MB in the beginning and 86.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.43ms. Allocated memory is still 148.9MB. Free memory was 86.0MB in the beginning and 83.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.17ms. Allocated memory is still 148.9MB. Free memory was 83.2MB in the beginning and 81.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1043.52ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 81.5MB in the beginning and 147.9MB in the end (delta: -66.4MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1253.48ms. Allocated memory is still 199.2MB. Free memory was 146.8MB in the beginning and 98.5MB in the end (delta: 48.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 199.2MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of someUnaryDOUBLEoperation at line 96. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 0; [L25] signed char var_1_4 = 5; [L26] signed char var_1_7 = 0; [L27] signed char var_1_8 = 16; [L28] signed char var_1_9 = 4; [L29] unsigned long int var_1_10 = 128; [L30] unsigned long int var_1_11 = 1422462314; [L31] signed short int var_1_12 = 8; [L32] signed short int var_1_15 = -50; [L33] unsigned long int var_1_16 = 1; [L34] unsigned long int var_1_17 = 3609236770; [L35] unsigned long int var_1_18 = 2902762324; [L36] double var_1_19 = 3.8; [L37] double var_1_20 = 255.75; [L38] unsigned short int var_1_21 = 0; [L39] signed char var_1_22 = -8; [L40] signed long int var_1_23 = -32; [L41] signed long int var_1_24 = 16; [L42] signed char var_1_25 = 5; [L43] signed long int var_1_26 = -4; [L44] unsigned char var_1_27 = 0; [L45] signed short int var_1_28 = -16; [L46] float var_1_29 = 99999999.5; [L47] float var_1_30 = 24.63; [L48] float var_1_31 = 49.4; [L49] unsigned char var_1_32 = 1; [L50] unsigned long int last_1_var_1_10 = 128; [L51] unsigned long int last_1_var_1_16 = 1; [L52] double last_1_var_1_19 = 3.8; [L172] isInitial = 1 [L173] FCALL initially() [L174] COND TRUE 1 [L175] CALL updateLastVariables() [L163] last_1_var_1_10 = var_1_10 [L164] last_1_var_1_16 = var_1_16 [L165] last_1_var_1_19 = var_1_19 [L175] RET updateLastVariables() [L176] CALL updateVariables() [L123] var_1_2 = __VERIFIER_nondet_uchar() [L124] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L125] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L126] var_1_3 = __VERIFIER_nondet_uchar() [L127] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L128] CALL assume_abort_if_not(var_1_3 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_3 <= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L129] var_1_7 = __VERIFIER_nondet_char() [L130] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L131] CALL assume_abort_if_not(var_1_7 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_7 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L132] var_1_8 = __VERIFIER_nondet_char() [L133] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L133] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=4] [L134] CALL assume_abort_if_not(var_1_8 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L134] RET assume_abort_if_not(var_1_8 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=4] [L135] var_1_9 = __VERIFIER_nondet_char() [L136] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L136] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L137] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L137] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L138] var_1_11 = __VERIFIER_nondet_ulong() [L139] CALL assume_abort_if_not(var_1_11 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_11 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L140] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L141] var_1_17 = __VERIFIER_nondet_ulong() [L142] CALL assume_abort_if_not(var_1_17 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_17 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L143] CALL assume_abort_if_not(var_1_17 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_17 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L144] var_1_18 = __VERIFIER_nondet_ulong() [L145] CALL assume_abort_if_not(var_1_18 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_18 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L146] CALL assume_abort_if_not(var_1_18 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_18 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L147] var_1_20 = __VERIFIER_nondet_double() [L148] CALL assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=0, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L149] var_1_27 = __VERIFIER_nondet_uchar() [L150] CALL assume_abort_if_not(var_1_27 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_27 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L151] CALL assume_abort_if_not(var_1_27 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_27 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=199999999/2, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L152] var_1_29 = __VERIFIER_nondet_float() [L153] CALL assume_abort_if_not((var_1_29 >= -922337.2036854776000e+13F && var_1_29 <= -1.0e-20F) || (var_1_29 <= 9223372.036854776000e+12F && var_1_29 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not((var_1_29 >= -922337.2036854776000e+13F && var_1_29 <= -1.0e-20F) || (var_1_29 <= 9223372.036854776000e+12F && var_1_29 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=2463/100, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L154] var_1_30 = __VERIFIER_nondet_float() [L155] CALL assume_abort_if_not((var_1_30 >= -922337.2036854776000e+13F && var_1_30 <= -1.0e-20F) || (var_1_30 <= 9223372.036854776000e+12F && var_1_30 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not((var_1_30 >= -922337.2036854776000e+13F && var_1_30 <= -1.0e-20F) || (var_1_30 <= 9223372.036854776000e+12F && var_1_30 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=247/5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L156] var_1_31 = __VERIFIER_nondet_float() [L157] CALL assume_abort_if_not((var_1_31 >= -922337.2036854776000e+13F && var_1_31 <= -1.0e-20F) || (var_1_31 <= 9223372.036854776000e+12F && var_1_31 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not((var_1_31 >= -922337.2036854776000e+13F && var_1_31 <= -1.0e-20F) || (var_1_31 <= 9223372.036854776000e+12F && var_1_31 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L158] var_1_32 = __VERIFIER_nondet_uchar() [L159] CALL assume_abort_if_not(var_1_32 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_32 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L160] CALL assume_abort_if_not(var_1_32 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_32 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=2147483647, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=2147483648, var_1_18=2147483647, var_1_19=19/5, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=-8, var_1_23=-32, var_1_24=16, var_1_25=5, var_1_26=-4, var_1_27=1, var_1_28=-16, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=5, var_1_32=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=0, var_1_9=0] [L176] RET updateVariables() [L177] CALL step() [L56] var_1_22 = ((((-25) < 0 ) ? -(-25) : (-25))) [L57] var_1_23 = 8 [L58] var_1_24 = var_1_22 [L59] var_1_25 = 32 [L60] COND TRUE var_1_25 > 1 [L61] COND TRUE \read(var_1_27) [L62] COND FALSE !((var_1_23 * var_1_24) < var_1_25) [L67] COND FALSE !(! var_1_27) [L74] COND TRUE \read(var_1_32) [L75] var_1_28 = var_1_25 [L80] unsigned long int stepLocal_1 = last_1_var_1_16; [L81] unsigned long int stepLocal_0 = last_1_var_1_16; [L82] COND TRUE stepLocal_1 != last_1_var_1_10 [L83] COND TRUE var_1_8 <= stepLocal_0 [L84] COND FALSE !((- last_1_var_1_19) >= last_1_var_1_19) [L91] COND TRUE var_1_12 == var_1_12 [L92] var_1_4 = ((8 + ((((var_1_7) > (var_1_8)) ? (var_1_7) : (var_1_8)))) - var_1_9) [L94] var_1_1 = (var_1_2 || (! var_1_3)) [L95] var_1_10 = (4027026809u - (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) - var_1_7)) [L96] var_1_19 = ((((((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))) < (1.4)) ? (((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))) : (1.4))) [L97] COND TRUE \read(var_1_1) [L98] COND FALSE !(var_1_19 >= var_1_19) [L103] var_1_15 = var_1_7 [L108] COND TRUE var_1_19 != var_1_19 [L109] var_1_16 = (((((var_1_11) < (var_1_7)) ? (var_1_11) : (var_1_7))) + var_1_8) [L117] unsigned char stepLocal_2 = var_1_1; [L118] COND TRUE (var_1_16 == (var_1_8 - var_1_9)) && stepLocal_2 [L119] var_1_21 = var_1_9 [L177] RET step() [L178] CALL, EXPR property() [L168-L169] return (((((((var_1_1 == ((unsigned char) (var_1_2 || (! var_1_3)))) && ((var_1_12 == var_1_12) ? (var_1_4 == ((signed char) ((8 + ((((var_1_7) > (var_1_8)) ? (var_1_7) : (var_1_8)))) - var_1_9))) : 1)) && (var_1_10 == ((unsigned long int) (4027026809u - (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) - var_1_7))))) && ((last_1_var_1_16 != last_1_var_1_10) ? ((var_1_8 <= last_1_var_1_16) ? (((- last_1_var_1_19) >= last_1_var_1_19) ? (var_1_12 == ((signed short int) var_1_8)) : 1) : 1) : (var_1_12 == ((signed short int) var_1_9)))) && (var_1_1 ? ((var_1_19 >= var_1_19) ? ((! var_1_3) ? (var_1_15 == ((signed short int) var_1_8)) : 1) : (var_1_15 == ((signed short int) var_1_7))) : (var_1_15 == ((signed short int) 5)))) && ((var_1_19 != var_1_19) ? (var_1_16 == ((unsigned long int) (((((var_1_11) < (var_1_7)) ? (var_1_11) : (var_1_7))) + var_1_8))) : ((var_1_4 > var_1_12) ? (var_1_16 == ((unsigned long int) (var_1_17 - (var_1_11 - var_1_8)))) : (var_1_16 == ((unsigned long int) (((((var_1_17) > (var_1_18)) ? (var_1_17) : (var_1_18))) - var_1_9)))))) && (var_1_19 == ((double) ((((((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))) < (1.4)) ? (((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))) : (1.4)))))) && (((var_1_16 == (var_1_8 - var_1_9)) && var_1_1) ? (var_1_21 == ((unsigned short int) var_1_9)) : 1) ; [L178] RET, EXPR property() [L178] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=1879543162, var_1_11=2147483647, var_1_12=8, var_1_15=0, var_1_16=0, var_1_17=2147483648, var_1_18=2147483647, var_1_19=6, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=25, var_1_23=8, var_1_24=25, var_1_25=32, var_1_26=-4, var_1_27=1, var_1_28=32, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=5, var_1_32=1, var_1_3=0, var_1_4=8, var_1_7=0, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=1879543162, var_1_11=2147483647, var_1_12=8, var_1_15=0, var_1_16=0, var_1_17=2147483648, var_1_18=2147483647, var_1_19=6, var_1_1=1, var_1_20=2, var_1_21=0, var_1_22=25, var_1_23=8, var_1_24=25, var_1_25=32, var_1_26=-4, var_1_27=1, var_1_28=32, var_1_29=3, var_1_2=1, var_1_30=4, var_1_31=5, var_1_32=1, var_1_3=0, var_1_4=8, var_1_7=0, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 24, 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=47occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 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 05:14:38,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/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_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/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_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/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_2cb59715-03c1-4881-9af6-06e8bbd11efa/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 f51ee4a7220dc2b51ff1b4163bfc3c5ced88b90b523c25a3c78fe5519978425e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:14:41,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:14:41,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:14:41,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:14:41,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:14:41,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:14:41,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:14:41,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:14:41,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:14:41,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:14:41,772 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:14:41,774 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:14:41,775 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:14:41,775 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:14:41,776 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:14:41,777 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:14:41,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:14:41,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:14:41,779 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:14:41,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:14:41,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:14:41,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:14:41,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:14:41,785 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:14:41,787 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:14:41,787 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:14:41,788 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:14:41,788 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:14:41,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:14:41,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:14:41,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:14:41,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:14:41,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:14:41,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:41,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:14:41,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:14:41,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:14:41,793 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:14:41,794 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:41,794 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:14:41,794 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:14:41,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:14:41,799 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_2cb59715-03c1-4881-9af6-06e8bbd11efa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f51ee4a7220dc2b51ff1b4163bfc3c5ced88b90b523c25a3c78fe5519978425e [2023-11-19 05:14:42,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:14:42,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:14:42,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:14:42,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:14:42,234 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:14:42,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i [2023-11-19 05:14:45,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:14:45,894 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:14:45,895 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i [2023-11-19 05:14:45,916 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/data/f41e073e0/1a8d32006aa749879bf0e16cb8e83031/FLAG740f0ff19 [2023-11-19 05:14:45,930 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/data/f41e073e0/1a8d32006aa749879bf0e16cb8e83031 [2023-11-19 05:14:45,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:14:45,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:14:45,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:45,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:14:45,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:14:45,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7213d010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45, skipping insertion in model container [2023-11-19 05:14:45,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,984 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:14:46,203 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_2cb59715-03c1-4881-9af6-06e8bbd11efa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i[915,928] [2023-11-19 05:14:46,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:46,337 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:14:46,354 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_2cb59715-03c1-4881-9af6-06e8bbd11efa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-11.i[915,928] [2023-11-19 05:14:46,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:46,439 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:14:46,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46 WrapperNode [2023-11-19 05:14:46,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:46,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:46,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:14:46,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:14:46,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,529 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 175 [2023-11-19 05:14:46,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:46,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:14:46,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:14:46,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:14:46,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:14:46,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:14:46,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:14:46,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:14:46,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (1/1) ... [2023-11-19 05:14:46,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:46,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:46,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:14:46,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:14:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:14:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:14:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:14:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:14:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:14:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:14:46,810 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:14:46,813 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:14:47,654 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:14:47,663 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:14:47,670 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:14:47,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:47 BoogieIcfgContainer [2023-11-19 05:14:47,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:14:47,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:14:47,682 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:14:47,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:14:47,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:14:45" (1/3) ... [2023-11-19 05:14:47,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669142f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:47, skipping insertion in model container [2023-11-19 05:14:47,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:46" (2/3) ... [2023-11-19 05:14:47,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669142f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:47, skipping insertion in model container [2023-11-19 05:14:47,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:47" (3/3) ... [2023-11-19 05:14:47,690 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-11.i [2023-11-19 05:14:47,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:14:47,712 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:14:47,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:14:47,781 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;@668e5130, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:14:47,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:14:47,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 50 states have (on average 1.44) internal successors, (72), 51 states have internal predecessors, (72), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 05:14:47,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-19 05:14:47,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:47,809 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:47,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:47,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:47,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1292399176, now seen corresponding path program 1 times [2023-11-19 05:14:47,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:47,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160812659] [2023-11-19 05:14:47,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:47,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:47,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:47,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:47,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:14:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:48,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:14:48,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2023-11-19 05:14:48,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:48,297 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:48,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160812659] [2023-11-19 05:14:48,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160812659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:48,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:48,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:14:48,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785817521] [2023-11-19 05:14:48,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:48,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:14:48,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:14:48,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:14:48,345 INFO L87 Difference]: Start difference. First operand has 77 states, 50 states have (on average 1.44) internal successors, (72), 51 states have internal predecessors, (72), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-19 05:14:48,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:48,418 INFO L93 Difference]: Finished difference Result 147 states and 258 transitions. [2023-11-19 05:14:48,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:14:48,421 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 154 [2023-11-19 05:14:48,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:48,435 INFO L225 Difference]: With dead ends: 147 [2023-11-19 05:14:48,435 INFO L226 Difference]: Without dead ends: 73 [2023-11-19 05:14:48,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:14:48,447 INFO L413 NwaCegarLoop]: 112 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, 112 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:48,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:14:48,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-19 05:14:48,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-19 05:14:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 47 states have internal predecessors, (64), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 05:14:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 112 transitions. [2023-11-19 05:14:48,531 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 112 transitions. Word has length 154 [2023-11-19 05:14:48,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:48,532 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 112 transitions. [2023-11-19 05:14:48,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-19 05:14:48,533 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 112 transitions. [2023-11-19 05:14:48,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-19 05:14:48,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:48,545 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:48,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:48,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:48,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:48,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:48,754 INFO L85 PathProgramCache]: Analyzing trace with hash -455105020, now seen corresponding path program 1 times [2023-11-19 05:14:48,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:48,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892898312] [2023-11-19 05:14:48,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:48,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:48,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:48,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:48,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:14:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:49,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:14:49,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:49,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 05:14:49,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:49,164 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:49,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892898312] [2023-11-19 05:14:49,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892898312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:49,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:49,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:14:49,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123312736] [2023-11-19 05:14:49,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:49,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:14:49,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:49,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:14:49,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:49,170 INFO L87 Difference]: Start difference. First operand 73 states and 112 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:14:49,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:49,276 INFO L93 Difference]: Finished difference Result 187 states and 288 transitions. [2023-11-19 05:14:49,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:14:49,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 154 [2023-11-19 05:14:49,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:49,281 INFO L225 Difference]: With dead ends: 187 [2023-11-19 05:14:49,281 INFO L226 Difference]: Without dead ends: 117 [2023-11-19 05:14:49,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:49,284 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 107 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:49,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 241 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:49,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-19 05:14:49,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 73. [2023-11-19 05:14:49,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 47 states have internal predecessors, (63), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 05:14:49,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 111 transitions. [2023-11-19 05:14:49,301 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 111 transitions. Word has length 154 [2023-11-19 05:14:49,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:49,304 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 111 transitions. [2023-11-19 05:14:49,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:14:49,304 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2023-11-19 05:14:49,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-19 05:14:49,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:49,307 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:49,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/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 05:14:49,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:49,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:49,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1586414604, now seen corresponding path program 1 times [2023-11-19 05:14:49,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:49,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557073978] [2023-11-19 05:14:49,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:49,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:49,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:49,522 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:49,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 05:14:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:49,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:14:49,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 05:14:49,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:49,870 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:49,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557073978] [2023-11-19 05:14:49,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557073978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:49,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:49,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:14:49,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673896137] [2023-11-19 05:14:49,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:49,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:14:49,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:49,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:14:49,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:49,896 INFO L87 Difference]: Start difference. First operand 73 states and 111 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:14:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:49,958 INFO L93 Difference]: Finished difference Result 195 states and 297 transitions. [2023-11-19 05:14:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:14:49,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 155 [2023-11-19 05:14:49,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:49,968 INFO L225 Difference]: With dead ends: 195 [2023-11-19 05:14:49,968 INFO L226 Difference]: Without dead ends: 125 [2023-11-19 05:14:49,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:49,977 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 81 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:49,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 205 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:14:49,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-19 05:14:50,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 122. [2023-11-19 05:14:50,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 79 states have internal predecessors, (103), 41 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-19 05:14:50,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 185 transitions. [2023-11-19 05:14:50,033 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 185 transitions. Word has length 155 [2023-11-19 05:14:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:50,036 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 185 transitions. [2023-11-19 05:14:50,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:14:50,037 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 185 transitions. [2023-11-19 05:14:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-19 05:14:50,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:50,040 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:50,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:50,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:50,244 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:50,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1338110404, now seen corresponding path program 1 times [2023-11-19 05:14:50,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:50,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429023989] [2023-11-19 05:14:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:50,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:50,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:50,251 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:50,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 05:14:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:50,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:14:50,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 05:14:52,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:52,059 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:52,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429023989] [2023-11-19 05:14:52,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429023989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:52,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:52,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:14:52,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37339379] [2023-11-19 05:14:52,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:52,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:14:52,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:52,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:14:52,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:14:52,072 INFO L87 Difference]: Start difference. First operand 122 states and 185 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:14:52,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:52,609 INFO L93 Difference]: Finished difference Result 335 states and 507 transitions. [2023-11-19 05:14:52,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:14:52,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 155 [2023-11-19 05:14:52,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:52,616 INFO L225 Difference]: With dead ends: 335 [2023-11-19 05:14:52,616 INFO L226 Difference]: Without dead ends: 216 [2023-11-19 05:14:52,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:52,619 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 95 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:52,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 362 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:14:52,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-19 05:14:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 182. [2023-11-19 05:14:52,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 112 states have (on average 1.2678571428571428) internal successors, (142), 113 states have internal predecessors, (142), 65 states have call successors, (65), 4 states have call predecessors, (65), 4 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-19 05:14:52,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 272 transitions. [2023-11-19 05:14:52,679 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 272 transitions. Word has length 155 [2023-11-19 05:14:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:52,682 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 272 transitions. [2023-11-19 05:14:52,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:14:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 272 transitions. [2023-11-19 05:14:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-19 05:14:52,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:52,685 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:52,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:52,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:52,894 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:52,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:52,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1360657666, now seen corresponding path program 1 times [2023-11-19 05:14:52,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:52,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010401255] [2023-11-19 05:14:52,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:52,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:52,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:52,898 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:52,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 05:14:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:53,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:14:53,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:53,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 269 proven. 60 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2023-11-19 05:14:53,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 9 proven. 60 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-19 05:14:54,037 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:54,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010401255] [2023-11-19 05:14:54,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010401255] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:54,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [305796399] [2023-11-19 05:14:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:54,038 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:54,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:14:54,050 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:14:54,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 05:14:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:54,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:54,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 05:14:54,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:54,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [305796399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:54,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:14:54,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 6] total 11 [2023-11-19 05:14:54,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598354269] [2023-11-19 05:14:54,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:54,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:54,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:54,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:54,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:14:54,732 INFO L87 Difference]: Start difference. First operand 182 states and 272 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, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:14:54,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:54,876 INFO L93 Difference]: Finished difference Result 414 states and 624 transitions. [2023-11-19 05:14:54,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:14:54,878 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, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 156 [2023-11-19 05:14:54,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:54,882 INFO L225 Difference]: With dead ends: 414 [2023-11-19 05:14:54,882 INFO L226 Difference]: Without dead ends: 295 [2023-11-19 05:14:54,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 455 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:14:54,884 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 99 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:54,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 489 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:54,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-19 05:14:54,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 190. [2023-11-19 05:14:54,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 120 states have (on average 1.2833333333333334) internal successors, (154), 121 states have internal predecessors, (154), 65 states have call successors, (65), 4 states have call predecessors, (65), 4 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-19 05:14:54,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 284 transitions. [2023-11-19 05:14:54,933 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 284 transitions. Word has length 156 [2023-11-19 05:14:54,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:54,934 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 284 transitions. [2023-11-19 05:14:54,934 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, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:14:54,934 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 284 transitions. [2023-11-19 05:14:54,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-19 05:14:54,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:54,938 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:54,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-19 05:14:55,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:55,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:55,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:55,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:55,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1358810624, now seen corresponding path program 1 times [2023-11-19 05:14:55,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:55,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311639010] [2023-11-19 05:14:55,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:55,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:55,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:55,354 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:55,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 05:14:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:55,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:14:55,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 269 proven. 60 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2023-11-19 05:14:56,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 9 proven. 60 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-19 05:14:56,484 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:56,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311639010] [2023-11-19 05:14:56,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311639010] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:56,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [70514722] [2023-11-19 05:14:56,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:56,487 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:56,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:14:56,490 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:14:56,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 05:14:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:57,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:57,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 05:14:58,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:58,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [70514722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:58,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:14:58,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 11 [2023-11-19 05:14:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81571800] [2023-11-19 05:14:58,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:58,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:58,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:58,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:58,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:14:58,428 INFO L87 Difference]: Start difference. First operand 190 states and 284 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:15:00,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:00,385 INFO L93 Difference]: Finished difference Result 325 states and 490 transitions. [2023-11-19 05:15:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:15:00,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 156 [2023-11-19 05:15:00,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:00,389 INFO L225 Difference]: With dead ends: 325 [2023-11-19 05:15:00,389 INFO L226 Difference]: Without dead ends: 198 [2023-11-19 05:15:00,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 455 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:15:00,391 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 85 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:00,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 254 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 05:15:00,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-19 05:15:00,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 190. [2023-11-19 05:15:00,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 120 states have (on average 1.2333333333333334) internal successors, (148), 121 states have internal predecessors, (148), 65 states have call successors, (65), 4 states have call predecessors, (65), 4 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-19 05:15:00,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 278 transitions. [2023-11-19 05:15:00,433 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 278 transitions. Word has length 156 [2023-11-19 05:15:00,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:00,434 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 278 transitions. [2023-11-19 05:15:00,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:15:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 278 transitions. [2023-11-19 05:15:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-19 05:15:00,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:00,437 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:00,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:00,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:00,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:00,845 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:00,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:00,846 INFO L85 PathProgramCache]: Analyzing trace with hash 617094403, now seen corresponding path program 1 times [2023-11-19 05:15:00,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:15:00,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495423004] [2023-11-19 05:15:00,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:00,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:00,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:15:00,848 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:15:00,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/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 (10)] Waiting until timeout for monitored process [2023-11-19 05:15:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:01,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:15:01,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 269 proven. 60 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2023-11-19 05:15:01,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:15:01,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 9 proven. 60 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-19 05:15:01,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:15:01,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495423004] [2023-11-19 05:15:01,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495423004] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:15:01,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2107144626] [2023-11-19 05:15:01,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:01,960 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:15:01,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:15:01,962 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:15:01,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb59715-03c1-4881-9af6-06e8bbd11efa/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 05:15:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:03,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 05:15:03,202 INFO L285 TraceCheckSpWp]: Computing forward predicates...