./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:10:23,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:10:23,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:10:23,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:10:23,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:10:23,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:10:23,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:10:23,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:10:23,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:10:23,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:10:23,282 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:10:23,283 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:10:23,284 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:10:23,285 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:10:23,286 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:10:23,286 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:10:23,287 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:10:23,287 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:10:23,288 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:10:23,288 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:10:23,289 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:10:23,290 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:10:23,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:10:23,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:10:23,292 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:10:23,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:10:23,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:10:23,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:10:23,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:10:23,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:10:23,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:10:23,296 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:10:23,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:10:23,296 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:10:23,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:10:23,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:10:23,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:23,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:10:23,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:10:23,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:10:23,299 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:10:23,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:10:23,299 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:10:23,300 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:10:23,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:10:23,301 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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 [2023-11-19 04:10:23,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:10:23,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:10:23,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:10:23,624 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:10:23,625 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:10:23,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-19 04:10:26,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:10:27,073 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:10:27,074 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-19 04:10:27,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/data/aa79444a7/baeedef2c15b4aef95d972601a3f4d75/FLAG55eb346d5 [2023-11-19 04:10:27,101 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/data/aa79444a7/baeedef2c15b4aef95d972601a3f4d75 [2023-11-19 04:10:27,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:10:27,109 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:10:27,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:27,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:10:27,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:10:27,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b361b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27, skipping insertion in model container [2023-11-19 04:10:27,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,170 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:10:27,335 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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-19 04:10:27,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:27,413 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:10:27,435 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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-19 04:10:27,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:27,547 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:10:27,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27 WrapperNode [2023-11-19 04:10:27,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:27,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:27,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:10:27,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:10:27,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,636 INFO L138 Inliner]: procedures = 29, calls = 159, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 438 [2023-11-19 04:10:27,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:27,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:10:27,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:10:27,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:10:27,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:10:27,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:10:27,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:10:27,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:10:27,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (1/1) ... [2023-11-19 04:10:27,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:27,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:10:27,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:10:27,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:10:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:10:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:10:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 04:10:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 04:10:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:10:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 04:10:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:10:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:10:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:10:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:10:27,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:10:27,912 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:10:27,915 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:10:28,601 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:10:29,812 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:10:29,812 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:10:29,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:29 BoogieIcfgContainer [2023-11-19 04:10:29,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:10:29,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:10:29,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:10:29,826 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:10:29,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:10:27" (1/3) ... [2023-11-19 04:10:29,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55018e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:29, skipping insertion in model container [2023-11-19 04:10:29,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:27" (2/3) ... [2023-11-19 04:10:29,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55018e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:29, skipping insertion in model container [2023-11-19 04:10:29,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:29" (3/3) ... [2023-11-19 04:10:29,833 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-26.i [2023-11-19 04:10:29,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:10:29,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:10:29,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:10:29,928 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;@59e89750, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:10:29,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:10:29,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:10:29,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 04:10:29,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:29,945 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:29,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:10:29,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:29,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1318685439, now seen corresponding path program 1 times [2023-11-19 04:10:29,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:29,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699151002] [2023-11-19 04:10:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:29,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:30,271 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:10:30,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061764307] [2023-11-19 04:10:30,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:30,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:10:30,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:10:30,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:10:30,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:10:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:10:32,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:10:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:10:38,142 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:10:38,145 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:10:38,146 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:10:38,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:38,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 04:10:38,367 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:10:38,371 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:10:38,466 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-19 04:10:38,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-19 04:10:38,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-19 04:10:38,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-19 04:10:38,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-19 04:10:38,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 04:10:38,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-19 04:10:38,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-11-19 04:10:38,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-19 04:10:38,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-19 04:10:38,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-19 04:10:38,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-19 04:10:38,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-19 04:10:38,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 04:10:38,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-19 04:10:38,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-11-19 04:10:38,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-19 04:10:38,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-19 04:10:38,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-19 04:10:38,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-19 04:10:38,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-19 04:10:38,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-11-19 04:10:38,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-11-19 04:10:38,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-19 04:10:38,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-11-19 04:10:38,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-19 04:10:38,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-11-19 04:10:38,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-11-19 04:10:38,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-19 04:10:38,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-19 04:10:38,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-19 04:10:38,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-11-19 04:10:38,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-19 04:10:38,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-19 04:10:38,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-19 04:10:38,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-19 04:10:38,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-19 04:10:38,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-19 04:10:38,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-19 04:10:38,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-19 04:10:38,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-19 04:10:38,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-19 04:10:38,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:10:38 BoogieIcfgContainer [2023-11-19 04:10:38,508 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:10:38,508 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:10:38,509 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:10:38,509 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:10:38,509 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:29" (3/4) ... [2023-11-19 04:10:38,511 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:10:38,512 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:10:38,514 INFO L158 Benchmark]: Toolchain (without parser) took 11404.04ms. Allocated memory was 201.3MB in the beginning and 257.9MB in the end (delta: 56.6MB). Free memory was 152.7MB in the beginning and 114.7MB in the end (delta: 38.0MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2023-11-19 04:10:38,514 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:10:38,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.44ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 138.1MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:10:38,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.27ms. Allocated memory is still 201.3MB. Free memory was 137.6MB in the beginning and 133.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:10:38,516 INFO L158 Benchmark]: Boogie Preprocessor took 54.71ms. Allocated memory is still 201.3MB. Free memory was 133.9MB in the beginning and 131.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:10:38,517 INFO L158 Benchmark]: RCFGBuilder took 2125.09ms. Allocated memory was 201.3MB in the beginning and 257.9MB in the end (delta: 56.6MB). Free memory was 131.3MB in the beginning and 194.4MB in the end (delta: -63.1MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2023-11-19 04:10:38,517 INFO L158 Benchmark]: TraceAbstraction took 8686.58ms. Allocated memory is still 257.9MB. Free memory was 193.3MB in the beginning and 114.7MB in the end (delta: 78.6MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2023-11-19 04:10:38,518 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 257.9MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:10:38,521 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.44ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 138.1MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.27ms. Allocated memory is still 201.3MB. Free memory was 137.6MB in the beginning and 133.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.71ms. Allocated memory is still 201.3MB. Free memory was 133.9MB in the beginning and 131.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2125.09ms. Allocated memory was 201.3MB in the beginning and 257.9MB in the end (delta: 56.6MB). Free memory was 131.3MB in the beginning and 194.4MB in the end (delta: -63.1MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8686.58ms. Allocated memory is still 257.9MB. Free memory was 193.3MB in the beginning and 114.7MB in the end (delta: 78.6MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 257.9MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 51, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -1; [L23] signed short int* var_1_1_Pointer = &(var_1_1); [L24] signed short int var_1_4 = 1; [L25] signed short int* var_1_4_Pointer = &(var_1_4); [L26] float var_1_12 = 1.125; [L27] float* var_1_12_Pointer = &(var_1_12); [L28] float var_1_13 = 199.5; [L29] float* var_1_13_Pointer = &(var_1_13); [L30] float var_1_14 = 100000000000000.3; [L31] float* var_1_14_Pointer = &(var_1_14); [L32] unsigned char var_1_15 = 64; [L33] unsigned char* var_1_15_Pointer = &(var_1_15); [L34] unsigned char var_1_16 = 2; [L35] unsigned char* var_1_16_Pointer = &(var_1_16); [L36] unsigned long int var_1_17 = 50; [L37] unsigned long int* var_1_17_Pointer = &(var_1_17); [L38] signed long int var_1_19 = -32; [L39] signed long int* var_1_19_Pointer = &(var_1_19); [L40] float var_1_20 = 8.75; [L41] float* var_1_20_Pointer = &(var_1_20); [L42] unsigned char last_1_var_1_15 = 64; [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L78] EXPR \read(var_1_15) [L78] last_1_var_1_15 = var_1_15 [L88] RET updateLastVariables() [L89] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_short() [L63] EXPR \read(var_1_4) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L63] CALL assume_abort_if_not(var_1_4 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_4 >= -32767) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L64] EXPR \read(var_1_4) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L64] CALL assume_abort_if_not(var_1_4 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 <= 32766) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L65] var_1_13 = __VERIFIER_nondet_float() [L66] EXPR \read(var_1_13) [L66] EXPR var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F [L66] EXPR \read(var_1_13) [L66] EXPR var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F [L66] EXPR (var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L66] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L67] var_1_14 = __VERIFIER_nondet_float() [L68] EXPR \read(var_1_14) [L68] EXPR var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F [L68] EXPR (var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F ) [L68] EXPR \read(var_1_14) [L68] EXPR var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F [L68] EXPR \read(var_1_14) [L68] EXPR var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F [L68] EXPR (var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L68] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L69] var_1_16 = __VERIFIER_nondet_uchar() [L70] EXPR \read(var_1_16) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L70] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L71] EXPR \read(var_1_16) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L71] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L72] var_1_19 = __VERIFIER_nondet_long() [L73] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L73] CALL assume_abort_if_not(var_1_19 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_19 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L74] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L74] CALL assume_abort_if_not(var_1_19 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_19 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L75] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L75] CALL assume_abort_if_not(var_1_19 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_19 != 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L89] RET updateVariables() [L90] CALL step() [L46] EXPR \read(*var_1_13_Pointer) [L46] EXPR \read(*var_1_14_Pointer) [L46] (*(var_1_12_Pointer)) = ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer))) [L47] EXPR \read(*var_1_4_Pointer) [L47] COND TRUE (- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4)))) [L48] EXPR \read(*var_1_16_Pointer) [L48] (*(var_1_15_Pointer)) = (*(var_1_16_Pointer)) [L50] EXPR \read(*var_1_13_Pointer) [L50] (*(var_1_20_Pointer)) = (*(var_1_13_Pointer)) [L51] EXPR \read(*var_1_20_Pointer) [L51] EXPR \read(*var_1_20_Pointer) [L51] COND TRUE (*(var_1_20_Pointer)) > (*(var_1_20_Pointer)) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L52] (*(var_1_1_Pointer)) = (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))) [L56] EXPR \read(*var_1_15_Pointer) [L56] EXPR \read(*var_1_15_Pointer) [L56] EXPR \read(*var_1_1_Pointer) [L56] signed long int stepLocal_0 = (*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer))); [L57] EXPR \read(*var_1_15_Pointer) [L57] EXPR \read(*var_1_1_Pointer) [L57] EXPR \read(*var_1_19_Pointer) [L57] COND TRUE stepLocal_0 != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer)))) [L58] EXPR \read(*var_1_1_Pointer) [L58] EXPR \read(*var_1_15_Pointer) [L58] EXPR ((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))) [L58] EXPR \read(*var_1_15_Pointer) [L58] (*(var_1_17_Pointer)) = (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))) [L90] RET step() [L91] CALL, EXPR property() [L81] EXPR \read(*var_1_20_Pointer) [L81] EXPR \read(*var_1_20_Pointer) [L81] EXPR ((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))))))) [L81] EXPR \read(*var_1_1_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR ((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR ((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) [L81] EXPR ((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))))))) [L81] EXPR (((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer))))) [L81] EXPR ((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1) [L81] EXPR (((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1) [L81] EXPR ((((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1)) && ((*(var_1_20_Pointer)) == ((float) (*(var_1_13_Pointer)))) [L81-L82] return ((((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1)) && ((*(var_1_20_Pointer)) == ((float) (*(var_1_13_Pointer)))) ; [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 1, TraceHistogramMax: 9, 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=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:10:38,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:10:41,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:10:41,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:10:41,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:10:41,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:10:41,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:10:41,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:10:41,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:10:41,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:10:41,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:10:41,407 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:10:41,407 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:10:41,408 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:10:41,408 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:10:41,409 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:10:41,409 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:10:41,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:10:41,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:10:41,412 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:10:41,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:10:41,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:10:41,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:10:41,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:10:41,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:10:41,415 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:10:41,416 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:10:41,416 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:10:41,417 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:10:41,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:10:41,418 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:10:41,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:10:41,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:10:41,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:10:41,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:41,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:10:41,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:10:41,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:10:41,423 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:10:41,423 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:10:41,424 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:10:41,424 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:10:41,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:10:41,425 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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 [2023-11-19 04:10:41,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:10:41,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:10:41,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:10:41,913 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:10:41,913 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:10:41,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-19 04:10:45,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:10:45,457 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:10:45,458 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-19 04:10:45,467 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/data/815e64f43/35103218636c4a18a4d012a404e427c8/FLAG51ad113da [2023-11-19 04:10:45,482 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/data/815e64f43/35103218636c4a18a4d012a404e427c8 [2023-11-19 04:10:45,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:10:45,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:10:45,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:45,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:10:45,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:10:45,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:45,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f047b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45, skipping insertion in model container [2023-11-19 04:10:45,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:45,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:10:45,666 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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-19 04:10:45,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:45,747 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:10:45,760 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_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-19 04:10:45,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:45,825 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:10:45,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45 WrapperNode [2023-11-19 04:10:45,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:45,829 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:45,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:10:45,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:10:45,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:45,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:45,931 INFO L138 Inliner]: procedures = 36, calls = 159, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 436 [2023-11-19 04:10:45,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:45,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:10:45,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:10:45,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:10:45,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:45,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:45,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:45,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:46,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:46,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:46,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:46,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:46,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:10:46,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:10:46,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:10:46,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:10:46,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (1/1) ... [2023-11-19 04:10:46,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:46,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:10:46,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:10:46,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:10:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:10:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 04:10:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-19 04:10:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:10:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 04:10:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 04:10:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:10:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 04:10:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 04:10:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-19 04:10:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:10:46,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:10:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:10:46,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:10:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 04:10:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 04:10:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:10:46,397 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:10:46,401 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:10:48,043 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:10:48,059 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:10:48,060 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:10:48,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:48 BoogieIcfgContainer [2023-11-19 04:10:48,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:10:48,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:10:48,070 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:10:48,074 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:10:48,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:10:45" (1/3) ... [2023-11-19 04:10:48,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a97de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:48, skipping insertion in model container [2023-11-19 04:10:48,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:45" (2/3) ... [2023-11-19 04:10:48,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a97de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:48, skipping insertion in model container [2023-11-19 04:10:48,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:48" (3/3) ... [2023-11-19 04:10:48,082 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-26.i [2023-11-19 04:10:48,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:10:48,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:10:48,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:10:48,183 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;@37701b44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:10:48,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:10:48,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:10:48,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 04:10:48,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:48,214 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:48,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:10:48,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:48,224 INFO L85 PathProgramCache]: Analyzing trace with hash -877936993, now seen corresponding path program 1 times [2023-11-19 04:10:48,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:48,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359513604] [2023-11-19 04:10:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:48,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:48,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:48,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:10:48,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:10:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:48,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:10:48,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:48,984 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-19 04:10:48,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:48,987 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:48,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359513604] [2023-11-19 04:10:48,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359513604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:48,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:48,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:10:48,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778595334] [2023-11-19 04:10:48,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:49,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:10:49,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:49,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:10:49,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:10:49,042 INFO L87 Difference]: Start difference. First operand has 93 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:10:49,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:49,080 INFO L93 Difference]: Finished difference Result 179 states and 271 transitions. [2023-11-19 04:10:49,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:10:49,084 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2023-11-19 04:10:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:49,091 INFO L225 Difference]: With dead ends: 179 [2023-11-19 04:10:49,091 INFO L226 Difference]: Without dead ends: 89 [2023-11-19 04:10:49,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:10:49,099 INFO L413 NwaCegarLoop]: 127 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, 127 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:49,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:10:49,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-19 04:10:49,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-19 04:10:49,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:10:49,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2023-11-19 04:10:49,145 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 89 [2023-11-19 04:10:49,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:49,146 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2023-11-19 04:10:49,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:10:49,146 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2023-11-19 04:10:49,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 04:10:49,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:49,152 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:49,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:49,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:49,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:10:49,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:49,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1465375761, now seen corresponding path program 1 times [2023-11-19 04:10:49,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:49,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869204813] [2023-11-19 04:10:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:49,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:49,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:49,369 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:10:49,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:10:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:49,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:10:49,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:49,868 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-19 04:10:49,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:49,869 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:49,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869204813] [2023-11-19 04:10:49,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869204813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:49,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:49,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:10:49,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746253106] [2023-11-19 04:10:49,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:49,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:10:49,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:49,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:10:49,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:10:49,874 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:10:50,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:50,216 INFO L93 Difference]: Finished difference Result 181 states and 260 transitions. [2023-11-19 04:10:50,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:10:50,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2023-11-19 04:10:50,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:50,230 INFO L225 Difference]: With dead ends: 181 [2023-11-19 04:10:50,230 INFO L226 Difference]: Without dead ends: 95 [2023-11-19 04:10:50,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:10:50,232 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 10 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:50,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 366 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:10:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-19 04:10:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2023-11-19 04:10:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.3875) internal successors, (111), 80 states have internal predecessors, (111), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:10:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2023-11-19 04:10:50,248 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 89 [2023-11-19 04:10:50,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:50,248 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2023-11-19 04:10:50,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:10:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2023-11-19 04:10:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 04:10:50,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:50,251 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:50,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:50,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:50,454 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:10:50,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1388474963, now seen corresponding path program 1 times [2023-11-19 04:10:50,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:50,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276344367] [2023-11-19 04:10:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:50,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:50,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:50,458 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:10:50,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:10:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:50,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:10:50,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:50,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-19 04:10:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:10:50,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:50,998 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:50,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276344367] [2023-11-19 04:10:50,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276344367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:50,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:51,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:51,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790823863] [2023-11-19 04:10:51,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:51,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:10:51,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:51,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:10:51,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:51,003 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:10:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:51,245 INFO L93 Difference]: Finished difference Result 179 states and 255 transitions. [2023-11-19 04:10:51,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:10:51,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2023-11-19 04:10:51,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:51,248 INFO L225 Difference]: With dead ends: 179 [2023-11-19 04:10:51,248 INFO L226 Difference]: Without dead ends: 91 [2023-11-19 04:10:51,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:51,251 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 1 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:51,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 246 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:10:51,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-19 04:10:51,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-19 04:10:51,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.375) internal successors, (110), 80 states have internal predecessors, (110), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:10:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2023-11-19 04:10:51,265 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 128 transitions. Word has length 89 [2023-11-19 04:10:51,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:51,266 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 128 transitions. [2023-11-19 04:10:51,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:10:51,266 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 128 transitions. [2023-11-19 04:10:51,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 04:10:51,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:51,269 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:51,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 04:10:51,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:51,480 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:10:51,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:51,481 INFO L85 PathProgramCache]: Analyzing trace with hash 570826513, now seen corresponding path program 1 times [2023-11-19 04:10:51,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:51,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509164032] [2023-11-19 04:10:51,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:51,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:51,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:10:51,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:10:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:51,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:10:51,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:51,985 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:10:51,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:51,986 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:51,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509164032] [2023-11-19 04:10:51,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509164032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:51,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:51,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:10:51,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577560927] [2023-11-19 04:10:51,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:51,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:10:51,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:51,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:10:51,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:10:51,990 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:10:52,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:52,094 INFO L93 Difference]: Finished difference Result 188 states and 265 transitions. [2023-11-19 04:10:52,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:10:52,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2023-11-19 04:10:52,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:52,097 INFO L225 Difference]: With dead ends: 188 [2023-11-19 04:10:52,098 INFO L226 Difference]: Without dead ends: 100 [2023-11-19 04:10:52,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:10:52,100 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 10 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:52,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 473 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:10:52,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-19 04:10:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 95. [2023-11-19 04:10:52,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 84 states have internal predecessors, (114), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:10:52,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2023-11-19 04:10:52,114 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 89 [2023-11-19 04:10:52,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:52,115 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2023-11-19 04:10:52,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:10:52,116 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2023-11-19 04:10:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 04:10:52,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:52,119 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:52,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:52,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:52,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:10:52,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:52,333 INFO L85 PathProgramCache]: Analyzing trace with hash 572673555, now seen corresponding path program 1 times [2023-11-19 04:10:52,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:52,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174787507] [2023-11-19 04:10:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:52,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:52,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:52,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:10:52,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 04:10:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:52,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:10:52,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:52,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2023-11-19 04:10:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-19 04:10:52,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:52,999 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:52,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174787507] [2023-11-19 04:10:53,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174787507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:53,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:53,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:10:53,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687693543] [2023-11-19 04:10:53,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:53,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:10:53,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:53,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:10:53,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:10:53,003 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:10:54,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:54,349 INFO L93 Difference]: Finished difference Result 191 states and 267 transitions. [2023-11-19 04:10:54,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:10:54,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2023-11-19 04:10:54,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:54,353 INFO L225 Difference]: With dead ends: 191 [2023-11-19 04:10:54,353 INFO L226 Difference]: Without dead ends: 99 [2023-11-19 04:10:54,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:10:54,355 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 137 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:54,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 373 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 04:10:54,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-19 04:10:54,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2023-11-19 04:10:54,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:10:54,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 129 transitions. [2023-11-19 04:10:54,369 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 129 transitions. Word has length 89 [2023-11-19 04:10:54,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:54,369 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 129 transitions. [2023-11-19 04:10:54,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:10:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 129 transitions. [2023-11-19 04:10:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 04:10:54,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:54,372 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:54,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:54,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:54,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:10:54,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:54,580 INFO L85 PathProgramCache]: Analyzing trace with hash 107335243, now seen corresponding path program 1 times [2023-11-19 04:10:54,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:54,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321618954] [2023-11-19 04:10:54,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:54,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:54,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:54,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:10:54,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 04:10:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:55,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:10:55,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:55,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-19 04:10:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 04:10:55,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:10:55,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-19 04:10:55,643 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 04:10:55,644 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:55,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321618954] [2023-11-19 04:10:55,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321618954] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:10:55,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2120942973] [2023-11-19 04:10:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:55,645 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:10:55,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:10:55,650 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:10:55,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 04:10:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:56,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 04:10:56,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:57,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-19 04:10:57,496 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 04:10:57,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:10:58,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-11-19 04:10:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 04:10:58,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2120942973] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:10:58,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214085212] [2023-11-19 04:10:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:58,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:10:58,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:10:58,021 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:10:58,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 04:10:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:58,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:10:58,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:58,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-11-19 04:10:58,458 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:10:58,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:58,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214085212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:58,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-19 04:10:58,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-11-19 04:10:58,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436786868] [2023-11-19 04:10:58,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:58,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:10:58,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:58,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:10:58,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-19 04:10:58,462 INFO L87 Difference]: Start difference. First operand 93 states and 129 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:10:58,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:58,732 INFO L93 Difference]: Finished difference Result 181 states and 253 transitions. [2023-11-19 04:10:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:10:58,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-11-19 04:10:58,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:58,735 INFO L225 Difference]: With dead ends: 181 [2023-11-19 04:10:58,735 INFO L226 Difference]: Without dead ends: 91 [2023-11-19 04:10:58,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-19 04:10:58,737 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:58,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:10:58,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-19 04:10:58,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-19 04:10:58,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.35) internal successors, (108), 80 states have internal predecessors, (108), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:10:58,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 126 transitions. [2023-11-19 04:10:58,748 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 126 transitions. Word has length 91 [2023-11-19 04:10:58,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:58,748 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 126 transitions. [2023-11-19 04:10:58,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:10:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 126 transitions. [2023-11-19 04:10:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 04:10:58,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:58,752 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:58,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:58,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:59,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:59,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:10:59,363 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:10:59,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:59,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2061512608, now seen corresponding path program 1 times [2023-11-19 04:10:59,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:59,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468567406] [2023-11-19 04:10:59,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:59,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:59,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:59,366 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:10:59,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 04:10:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:59,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:10:59,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:59,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-19 04:10:59,892 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:10:59,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:59,892 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:59,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468567406] [2023-11-19 04:10:59,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468567406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:59,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:59,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:59,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659159734] [2023-11-19 04:10:59,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:59,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:10:59,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:59,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:10:59,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:59,895 INFO L87 Difference]: Start difference. First operand 91 states and 126 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:00,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:00,123 INFO L93 Difference]: Finished difference Result 179 states and 249 transitions. [2023-11-19 04:11:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:11:00,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-19 04:11:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:00,125 INFO L225 Difference]: With dead ends: 179 [2023-11-19 04:11:00,126 INFO L226 Difference]: Without dead ends: 91 [2023-11-19 04:11:00,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:11:00,127 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 12 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:00,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 225 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:11:00,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-19 04:11:00,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-19 04:11:00,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.3375) internal successors, (107), 80 states have internal predecessors, (107), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:11:00,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 125 transitions. [2023-11-19 04:11:00,136 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 125 transitions. Word has length 96 [2023-11-19 04:11:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:00,136 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 125 transitions. [2023-11-19 04:11:00,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:00,137 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions. [2023-11-19 04:11:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 04:11:00,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:00,139 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:00,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:00,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:00,350 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:00,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:00,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1920963998, now seen corresponding path program 1 times [2023-11-19 04:11:00,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:00,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367214269] [2023-11-19 04:11:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:00,352 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 04:11:00,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:00,352 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:00,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (11)] Waiting until timeout for monitored process [2023-11-19 04:11:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:00,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:11:00,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:00,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-19 04:11:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 04:11:01,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:11:01,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-19 04:11:01,292 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 04:11:01,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:01,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367214269] [2023-11-19 04:11:01,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367214269] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:11:01,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [319445633] [2023-11-19 04:11:01,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:01,293 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:01,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:11:01,295 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:11:01,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-19 04:11:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:02,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 04:11:02,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:02,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 04:11:03,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-19 04:11:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 04:11:03,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:11:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 04:11:03,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [319445633] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:11:03,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408204376] [2023-11-19 04:11:03,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:03,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:11:03,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:11:03,620 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:11:03,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 04:11:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:03,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:11:03,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:11:04,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:04,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408204376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:04,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-19 04:11:04,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-11-19 04:11:04,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791638149] [2023-11-19 04:11:04,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:04,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:11:04,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:04,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:11:04,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-19 04:11:04,104 INFO L87 Difference]: Start difference. First operand 91 states and 125 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:05,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:05,401 INFO L93 Difference]: Finished difference Result 179 states and 247 transitions. [2023-11-19 04:11:05,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:11:05,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-19 04:11:05,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:05,404 INFO L225 Difference]: With dead ends: 179 [2023-11-19 04:11:05,404 INFO L226 Difference]: Without dead ends: 91 [2023-11-19 04:11:05,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-19 04:11:05,406 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 9 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:05,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 171 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 04:11:05,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-19 04:11:05,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-19 04:11:05,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:11:05,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 124 transitions. [2023-11-19 04:11:05,415 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 124 transitions. Word has length 96 [2023-11-19 04:11:05,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:05,416 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 124 transitions. [2023-11-19 04:11:05,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:05,416 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 124 transitions. [2023-11-19 04:11:05,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 04:11:05,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:05,418 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:05,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:05,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:05,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (11)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:06,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:06,032 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:06,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:06,032 INFO L85 PathProgramCache]: Analyzing trace with hash 568564964, now seen corresponding path program 1 times [2023-11-19 04:11:06,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:06,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47445365] [2023-11-19 04:11:06,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:06,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:06,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:06,035 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:06,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (14)] Waiting until timeout for monitored process [2023-11-19 04:11:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:06,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:11:06,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:06,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-19 04:11:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 04:11:06,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:11:07,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-19 04:11:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 04:11:07,040 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:07,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47445365] [2023-11-19 04:11:07,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47445365] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:11:07,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [861172504] [2023-11-19 04:11:07,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:07,042 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:07,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:11:07,047 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:11:07,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-19 04:11:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:08,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 04:11:08,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:08,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-19 04:11:08,834 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 04:11:08,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:11:09,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-11-19 04:11:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 04:11:09,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [861172504] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:11:09,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145526640] [2023-11-19 04:11:09,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:09,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:11:09,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:11:09,257 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:11:09,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 04:11:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:09,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:11:09,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:09,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-19 04:11:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:11:09,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:09,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145526640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:09,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-19 04:11:09,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-11-19 04:11:09,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039081369] [2023-11-19 04:11:09,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:09,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:11:09,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:09,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:11:09,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-19 04:11:09,731 INFO L87 Difference]: Start difference. First operand 91 states and 124 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:10,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:10,121 INFO L93 Difference]: Finished difference Result 180 states and 246 transitions. [2023-11-19 04:11:10,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:11:10,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-19 04:11:10,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:10,123 INFO L225 Difference]: With dead ends: 180 [2023-11-19 04:11:10,123 INFO L226 Difference]: Without dead ends: 92 [2023-11-19 04:11:10,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-19 04:11:10,125 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 2 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:10,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 231 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:11:10,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-19 04:11:10,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2023-11-19 04:11:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.3125) internal successors, (105), 80 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:11:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2023-11-19 04:11:10,134 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 96 [2023-11-19 04:11:10,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:10,135 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2023-11-19 04:11:10,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:10,135 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2023-11-19 04:11:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 04:11:10,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:10,137 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:10,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-11-19 04:11:10,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (14)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:10,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-19 04:11:10,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:11:10,748 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:10,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash 991266790, now seen corresponding path program 1 times [2023-11-19 04:11:10,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:10,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861071254] [2023-11-19 04:11:10,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:10,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:10,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:10,750 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:10,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (17)] Waiting until timeout for monitored process [2023-11-19 04:11:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:11,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:11:11,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:11,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-19 04:11:11,423 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 04:11:11,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:11:11,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-19 04:11:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 04:11:11,686 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:11,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861071254] [2023-11-19 04:11:11,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861071254] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:11:11,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1090290731] [2023-11-19 04:11:11,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:11,687 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:11,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:11:11,688 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:11:11,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-19 04:11:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:12,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 04:11:12,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:13,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 04:11:13,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-19 04:11:13,474 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 04:11:13,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:11:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 04:11:13,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1090290731] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:11:13,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527167969] [2023-11-19 04:11:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:13,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:11:13,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:11:13,861 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:11:13,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 04:11:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:14,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:11:14,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:14,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-19 04:11:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 04:11:14,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:14,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527167969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:14,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-19 04:11:14,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 8, 10, 9] total 21 [2023-11-19 04:11:14,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918339858] [2023-11-19 04:11:14,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:14,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:11:14,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:14,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:11:14,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2023-11-19 04:11:14,369 INFO L87 Difference]: Start difference. First operand 91 states and 123 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-19 04:11:16,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:16,044 INFO L93 Difference]: Finished difference Result 192 states and 258 transitions. [2023-11-19 04:11:16,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 04:11:16,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 96 [2023-11-19 04:11:16,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:16,046 INFO L225 Difference]: With dead ends: 192 [2023-11-19 04:11:16,046 INFO L226 Difference]: Without dead ends: 93 [2023-11-19 04:11:16,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2023-11-19 04:11:16,048 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 22 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:16,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 592 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 04:11:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-19 04:11:16,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2023-11-19 04:11:16,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.2875) internal successors, (103), 80 states have internal predecessors, (103), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:11:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 121 transitions. [2023-11-19 04:11:16,057 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 121 transitions. Word has length 96 [2023-11-19 04:11:16,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:16,058 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 121 transitions. [2023-11-19 04:11:16,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-19 04:11:16,058 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 121 transitions. [2023-11-19 04:11:16,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 04:11:16,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:16,060 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:16,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-19 04:11:16,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (17)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:16,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:16,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:16,684 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:16,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:16,684 INFO L85 PathProgramCache]: Analyzing trace with hash 751027044, now seen corresponding path program 1 times [2023-11-19 04:11:16,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:16,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75239482] [2023-11-19 04:11:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:16,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:16,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:16,686 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:16,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (20)] Waiting until timeout for monitored process [2023-11-19 04:11:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:17,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:11:17,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:17,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-11-19 04:11:17,257 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:11:17,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:17,257 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:17,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75239482] [2023-11-19 04:11:17,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75239482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:17,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:17,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:11:17,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896683340] [2023-11-19 04:11:17,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:17,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:11:17,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:17,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:11:17,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:11:17,261 INFO L87 Difference]: Start difference. First operand 91 states and 121 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:17,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:17,289 INFO L93 Difference]: Finished difference Result 177 states and 236 transitions. [2023-11-19 04:11:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:11:17,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-19 04:11:17,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:17,292 INFO L225 Difference]: With dead ends: 177 [2023-11-19 04:11:17,292 INFO L226 Difference]: Without dead ends: 89 [2023-11-19 04:11:17,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:11:17,294 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 36 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:17,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 186 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:11:17,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-19 04:11:17,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-19 04:11:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.2692307692307692) internal successors, (99), 78 states have internal predecessors, (99), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:11:17,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2023-11-19 04:11:17,303 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 96 [2023-11-19 04:11:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:17,303 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2023-11-19 04:11:17,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:17,305 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2023-11-19 04:11:17,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 04:11:17,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:17,306 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:17,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (20)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:17,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:17,515 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:17,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:17,516 INFO L85 PathProgramCache]: Analyzing trace with hash -79956123, now seen corresponding path program 1 times [2023-11-19 04:11:17,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:17,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4801359] [2023-11-19 04:11:17,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:17,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:17,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:17,518 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:17,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (21)] Waiting until timeout for monitored process [2023-11-19 04:11:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:18,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:11:18,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:18,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-19 04:11:18,109 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:11:18,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:18,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:18,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4801359] [2023-11-19 04:11:18,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4801359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:18,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:18,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:11:18,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117086200] [2023-11-19 04:11:18,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:18,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:11:18,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:18,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:11:18,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:11:18,112 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:18,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:18,134 INFO L93 Difference]: Finished difference Result 175 states and 231 transitions. [2023-11-19 04:11:18,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:11:18,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 101 [2023-11-19 04:11:18,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:18,136 INFO L225 Difference]: With dead ends: 175 [2023-11-19 04:11:18,137 INFO L226 Difference]: Without dead ends: 89 [2023-11-19 04:11:18,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:11:18,138 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 34 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:18,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 185 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:11:18,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-19 04:11:18,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-19 04:11:18,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 78 states have internal predecessors, (98), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:11:18,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2023-11-19 04:11:18,145 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 116 transitions. Word has length 101 [2023-11-19 04:11:18,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:18,145 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 116 transitions. [2023-11-19 04:11:18,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 116 transitions. [2023-11-19 04:11:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 04:11:18,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:18,153 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:18,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (21)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:18,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:18,364 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:18,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:18,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1768899865, now seen corresponding path program 1 times [2023-11-19 04:11:18,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:18,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736273863] [2023-11-19 04:11:18,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:18,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:18,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:18,367 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:18,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (22)] Waiting until timeout for monitored process [2023-11-19 04:11:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:18,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:11:18,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:18,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-19 04:11:18,911 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:11:18,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:18,911 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:18,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736273863] [2023-11-19 04:11:18,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736273863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:18,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:18,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:11:18,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695897039] [2023-11-19 04:11:18,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:18,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:11:18,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:18,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:11:18,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:11:18,914 INFO L87 Difference]: Start difference. First operand 89 states and 116 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:18,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:18,938 INFO L93 Difference]: Finished difference Result 195 states and 256 transitions. [2023-11-19 04:11:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:11:18,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 101 [2023-11-19 04:11:18,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:18,940 INFO L225 Difference]: With dead ends: 195 [2023-11-19 04:11:18,940 INFO L226 Difference]: Without dead ends: 109 [2023-11-19 04:11:18,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:11:18,942 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 24 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:18,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 215 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:11:18,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-19 04:11:18,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 89. [2023-11-19 04:11:18,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 78 states have internal predecessors, (97), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:11:18,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 115 transitions. [2023-11-19 04:11:18,949 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 115 transitions. Word has length 101 [2023-11-19 04:11:18,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:18,949 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 115 transitions. [2023-11-19 04:11:18,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:11:18,950 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 115 transitions. [2023-11-19 04:11:18,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 04:11:18,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:18,951 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:18,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (22)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:19,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:19,163 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:19,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:19,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1246203753, now seen corresponding path program 1 times [2023-11-19 04:11:19,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:19,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954751328] [2023-11-19 04:11:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:19,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:19,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:19,165 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:19,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2486ad6c-8dbe-4c1e-8bf4-2e81fb1b1218/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 (23)] Waiting until timeout for monitored process