./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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 032103455c965390b2cd90e1021eb4797074287a2ad4fda3336b307fb716d96d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:13:30,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:13:30,395 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:13:30,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:13:30,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:13:30,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:13:30,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:13:30,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:13:30,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:13:30,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:13:30,450 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:13:30,452 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:13:30,452 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:13:30,454 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:13:30,455 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:13:30,455 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:13:30,456 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:13:30,456 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:13:30,457 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:13:30,457 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:13:30,458 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:13:30,459 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:13:30,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:13:30,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:13:30,461 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:13:30,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:13:30,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:13:30,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:13:30,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:13:30,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:13:30,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:13:30,466 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:13:30,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:13:30,466 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:13:30,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:13:30,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:13:30,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:30,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:13:30,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:13:30,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:13:30,469 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:13:30,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:13:30,470 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:13:30,470 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:13:30,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:13:30,471 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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 032103455c965390b2cd90e1021eb4797074287a2ad4fda3336b307fb716d96d [2023-11-19 05:13:30,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:13:30,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:13:30,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:13:30,831 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:13:30,832 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:13:30,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i [2023-11-19 05:13:34,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:13:34,384 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:13:34,385 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i [2023-11-19 05:13:34,395 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/data/5e5cbbe6a/ee5b42eb03e44e15888879a81451fd79/FLAG9fc46b4f9 [2023-11-19 05:13:34,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/data/5e5cbbe6a/ee5b42eb03e44e15888879a81451fd79 [2023-11-19 05:13:34,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:13:34,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:13:34,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:34,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:13:34,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:13:34,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:34,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a9e12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34, skipping insertion in model container [2023-11-19 05:13:34,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:34,464 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:13:34,613 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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i[916,929] [2023-11-19 05:13:34,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:34,716 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:13:34,729 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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i[916,929] [2023-11-19 05:13:34,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:34,826 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:13:34,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34 WrapperNode [2023-11-19 05:13:34,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:34,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:34,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:13:34,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:13:34,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:34,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:34,925 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 218 [2023-11-19 05:13:34,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:34,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:13:34,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:13:34,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:13:34,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:34,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:34,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:34,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:34,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:35,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:35,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:35,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:35,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:13:35,032 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:13:35,032 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:13:35,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:13:35,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (1/1) ... [2023-11-19 05:13:35,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:35,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:35,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:13:35,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:13:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:13:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:13:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:13:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:13:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:13:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:13:35,239 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:13:35,242 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:13:35,936 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:13:36,424 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:13:36,424 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:13:36,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:36 BoogieIcfgContainer [2023-11-19 05:13:36,432 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:13:36,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:13:36,436 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:13:36,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:13:36,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:13:34" (1/3) ... [2023-11-19 05:13:36,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644b7034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:36, skipping insertion in model container [2023-11-19 05:13:36,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:34" (2/3) ... [2023-11-19 05:13:36,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644b7034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:36, skipping insertion in model container [2023-11-19 05:13:36,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:36" (3/3) ... [2023-11-19 05:13:36,447 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-63.i [2023-11-19 05:13:36,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:13:36,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:13:36,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:13:36,541 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;@28769a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:13:36,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:13:36,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 05:13:36,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 05:13:36,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:36,563 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:36,564 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:36,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:36,575 INFO L85 PathProgramCache]: Analyzing trace with hash -388892551, now seen corresponding path program 1 times [2023-11-19 05:13:36,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:36,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854273562] [2023-11-19 05:13:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:36,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:36,821 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:13:36,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457812850] [2023-11-19 05:13:36,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:36,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:13:36,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:36,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:13:36,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:13:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:13:37,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:13:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:13:37,378 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:13:37,381 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:13:37,382 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:13:37,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:37,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:13:37,596 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:13:37,600 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:13:37,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:13:37 BoogieIcfgContainer [2023-11-19 05:13:37,767 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:13:37,768 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:13:37,768 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:13:37,768 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:13:37,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:36" (3/4) ... [2023-11-19 05:13:37,773 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:13:37,774 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:13:37,775 INFO L158 Benchmark]: Toolchain (without parser) took 3361.95ms. Allocated memory was 174.1MB in the beginning and 218.1MB in the end (delta: 44.0MB). Free memory was 126.9MB in the beginning and 80.8MB in the end (delta: 46.1MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. [2023-11-19 05:13:37,776 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:13:37,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.14ms. Allocated memory is still 174.1MB. Free memory was 126.9MB in the beginning and 110.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 05:13:37,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.03ms. Allocated memory is still 174.1MB. Free memory was 110.1MB in the beginning and 103.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:13:37,783 INFO L158 Benchmark]: Boogie Preprocessor took 105.31ms. Allocated memory is still 174.1MB. Free memory was 103.8MB in the beginning and 101.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:13:37,785 INFO L158 Benchmark]: RCFGBuilder took 1400.15ms. Allocated memory was 174.1MB in the beginning and 218.1MB in the end (delta: 44.0MB). Free memory was 101.0MB in the beginning and 129.0MB in the end (delta: -28.0MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2023-11-19 05:13:37,786 INFO L158 Benchmark]: TraceAbstraction took 1331.17ms. Allocated memory is still 218.1MB. Free memory was 127.8MB in the beginning and 80.8MB in the end (delta: 47.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-19 05:13:37,786 INFO L158 Benchmark]: Witness Printer took 6.50ms. Allocated memory is still 218.1MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:13:37,794 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.14ms. Allocated memory is still 174.1MB. Free memory was 126.9MB in the beginning and 110.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.03ms. Allocated memory is still 174.1MB. Free memory was 110.1MB in the beginning and 103.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.31ms. Allocated memory is still 174.1MB. Free memory was 103.8MB in the beginning and 101.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1400.15ms. Allocated memory was 174.1MB in the beginning and 218.1MB in the end (delta: 44.0MB). Free memory was 101.0MB in the beginning and 129.0MB in the end (delta: -28.0MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1331.17ms. Allocated memory is still 218.1MB. Free memory was 127.8MB in the beginning and 80.8MB in the end (delta: 47.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 6.50ms. Allocated memory is still 218.1MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 186, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 138. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 4; [L23] unsigned char var_1_5 = 200; [L24] unsigned char var_1_6 = 4; [L25] unsigned char var_1_7 = 100; [L26] signed long int var_1_8 = -256; [L27] unsigned char var_1_9 = 1; [L28] unsigned char var_1_10 = 1; [L29] unsigned char var_1_11 = 0; [L30] unsigned char var_1_12 = 1; [L31] unsigned char var_1_13 = 200; [L32] signed char var_1_14 = 16; [L33] unsigned char var_1_15 = 0; [L34] unsigned char var_1_17 = 1; [L35] signed char var_1_18 = -25; [L36] signed short int var_1_19 = -10; [L37] unsigned char var_1_20 = 2; [L38] unsigned char var_1_22 = 32; [L39] unsigned char var_1_23 = 4; [L40] double var_1_24 = 128.6; [L41] double var_1_25 = 0.6; [L42] double var_1_26 = 99.375; [L43] signed short int var_1_27 = 1; [L44] unsigned long int var_1_29 = 128; [L45] unsigned char last_1_var_1_9 = 1; [L46] unsigned char last_1_var_1_12 = 1; [L47] unsigned char last_1_var_1_13 = 200; [L48] unsigned char last_1_var_1_15 = 0; [L49] signed char last_1_var_1_18 = -25; [L50] signed short int last_1_var_1_19 = -10; [L51] unsigned char last_1_var_1_20 = 2; [L52] signed short int last_1_var_1_27 = 1; [L190] isInitial = 1 [L191] FCALL initially() [L192] int k_loop; [L193] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=200, var_1_6=4, var_1_7=100, var_1_8=-256, var_1_9=1] [L193] COND TRUE k_loop < 1 [L194] CALL updateLastVariables() [L176] last_1_var_1_9 = var_1_9 [L177] last_1_var_1_12 = var_1_12 [L178] last_1_var_1_13 = var_1_13 [L179] last_1_var_1_15 = var_1_15 [L180] last_1_var_1_18 = var_1_18 [L181] last_1_var_1_19 = var_1_19 [L182] last_1_var_1_20 = var_1_20 [L183] last_1_var_1_27 = var_1_27 [L194] RET updateLastVariables() [L195] CALL updateVariables() [L143] var_1_5 = __VERIFIER_nondet_uchar() [L144] CALL assume_abort_if_not(var_1_5 >= 190) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=4, var_1_7=100, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_5 >= 190) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=4, var_1_7=100, var_1_8=-256, var_1_9=1] [L145] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=4, var_1_7=100, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=4, var_1_7=100, var_1_8=-256, var_1_9=1] [L146] var_1_6 = __VERIFIER_nondet_uchar() [L147] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=100, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=100, var_1_8=-256, var_1_9=1] [L148] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=100, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=100, var_1_8=-256, var_1_9=1] [L149] var_1_7 = __VERIFIER_nondet_uchar() [L150] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L151] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L152] var_1_10 = __VERIFIER_nondet_uchar() [L153] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L154] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L155] var_1_11 = __VERIFIER_nondet_uchar() [L156] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L157] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L158] var_1_14 = __VERIFIER_nondet_char() [L159] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L160] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L161] var_1_17 = __VERIFIER_nondet_uchar() [L162] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L163] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L164] var_1_22 = __VERIFIER_nondet_uchar() [L165] CALL assume_abort_if_not(var_1_22 >= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_22 >= 32) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L166] CALL assume_abort_if_not(var_1_22 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_22 <= 64) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L167] var_1_23 = __VERIFIER_nondet_uchar() [L168] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=0, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=0, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L169] CALL assume_abort_if_not(var_1_23 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=0, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_23 <= 32) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=0, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L170] var_1_25 = __VERIFIER_nondet_double() [L171] CALL assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=0, var_1_24=643/5, var_1_25=2, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=0, var_1_24=643/5, var_1_25=2, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L172] var_1_26 = __VERIFIER_nondet_double() [L173] CALL assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=0, var_1_24=643/5, var_1_25=2, var_1_26=3, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=0, var_1_24=643/5, var_1_25=2, var_1_26=3, var_1_27=1, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=-256, var_1_9=1] [L195] RET updateVariables() [L196] CALL step() [L56] var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27)) [L56] COND TRUE var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27)) [L57] COND FALSE !(last_1_var_1_18 >= (last_1_var_1_27 + (var_1_14 / var_1_5))) [L60] COND TRUE (~ last_1_var_1_27) > (var_1_7 - ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))) [L61] var_1_15 = (! (! (last_1_var_1_9 && var_1_11))) [L73] COND FALSE !(((last_1_var_1_19 / -2) <= last_1_var_1_13) && last_1_var_1_15) [L76] var_1_1 = (var_1_6 + var_1_7) [L78] unsigned char stepLocal_4 = last_1_var_1_13 < var_1_5; [L79] COND TRUE (last_1_var_1_12 > -4) || stepLocal_4 [L80] var_1_19 = last_1_var_1_20 [L82] COND FALSE !(\read(var_1_15)) [L85] var_1_8 = (25 + var_1_6) [L87] COND FALSE !(\read(var_1_11)) [L90] COND FALSE !(\read(var_1_11)) [L97] COND TRUE var_1_1 <= var_1_5 [L98] var_1_20 = var_1_6 [L101] signed char stepLocal_5 = var_1_14; [L102] COND TRUE var_1_22 > stepLocal_5 [L103] var_1_27 = var_1_19 [L107] signed short int stepLocal_1 = var_1_27; [L108] COND TRUE \read(var_1_10) [L109] var_1_13 = var_1_7 [L117] unsigned char stepLocal_3 = var_1_1; [L118] signed long int stepLocal_2 = var_1_5 ^ 1; [L119] COND TRUE stepLocal_2 >= (~ -8) [L120] var_1_18 = var_1_6 [L126] signed long int stepLocal_6 = (var_1_18 / var_1_22) / var_1_5; [L127] COND FALSE !(var_1_13 <= stepLocal_6) [L130] unsigned char stepLocal_0 = var_1_15; [L131] COND FALSE !((var_1_18 < var_1_1) && stepLocal_0) [L134] var_1_9 = (! var_1_11) [L136] COND TRUE var_1_7 <= var_1_22 [L137] COND TRUE \read(var_1_9) [L138] var_1_24 = (var_1_25 + var_1_26) [L196] RET step() [L197] CALL, EXPR property() [L186] EXPR ((((((((last_1_var_1_19 / -2) <= last_1_var_1_13) && last_1_var_1_15) ? (var_1_1 == ((unsigned char) ((var_1_5 - var_1_6) - var_1_7))) : (var_1_1 == ((unsigned char) (var_1_6 + var_1_7)))) && (var_1_15 ? (var_1_8 == ((signed long int) ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))) : (var_1_8 == ((signed long int) (25 + var_1_6))))) && (((var_1_18 < var_1_1) && var_1_15) ? (var_1_9 == ((unsigned char) ((var_1_18 > var_1_1) || var_1_10))) : (var_1_9 == ((unsigned char) (! var_1_11))))) && (var_1_11 ? (var_1_12 == ((unsigned char) var_1_6)) : 1)) && (var_1_10 ? (var_1_13 == ((unsigned char) var_1_7)) : ((((var_1_6 + var_1_14) - var_1_7) >= var_1_27) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))))) && ((var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27))) ? ((last_1_var_1_18 >= (last_1_var_1_27 + (var_1_14 / var_1_5))) ? (var_1_15 == ((unsigned char) (! var_1_11))) : (((~ last_1_var_1_27) > (var_1_7 - ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))))) ? (var_1_15 == ((unsigned char) (! (! (last_1_var_1_9 && var_1_11))))) : (var_1_15 == ((unsigned char) (! var_1_11))))) : (var_1_11 ? (var_1_15 == ((unsigned char) var_1_17)) : (var_1_15 == ((unsigned char) var_1_17)))) [L186] EXPR var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27)) [L186] EXPR ((((((((last_1_var_1_19 / -2) <= last_1_var_1_13) && last_1_var_1_15) ? (var_1_1 == ((unsigned char) ((var_1_5 - var_1_6) - var_1_7))) : (var_1_1 == ((unsigned char) (var_1_6 + var_1_7)))) && (var_1_15 ? (var_1_8 == ((signed long int) ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))) : (var_1_8 == ((signed long int) (25 + var_1_6))))) && (((var_1_18 < var_1_1) && var_1_15) ? (var_1_9 == ((unsigned char) ((var_1_18 > var_1_1) || var_1_10))) : (var_1_9 == ((unsigned char) (! var_1_11))))) && (var_1_11 ? (var_1_12 == ((unsigned char) var_1_6)) : 1)) && (var_1_10 ? (var_1_13 == ((unsigned char) var_1_7)) : ((((var_1_6 + var_1_14) - var_1_7) >= var_1_27) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))))) && ((var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27))) ? ((last_1_var_1_18 >= (last_1_var_1_27 + (var_1_14 / var_1_5))) ? (var_1_15 == ((unsigned char) (! var_1_11))) : (((~ last_1_var_1_27) > (var_1_7 - ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))))) ? (var_1_15 == ((unsigned char) (! (! (last_1_var_1_9 && var_1_11))))) : (var_1_15 == ((unsigned char) (! var_1_11))))) : (var_1_11 ? (var_1_15 == ((unsigned char) var_1_17)) : (var_1_15 == ((unsigned char) var_1_17)))) [L186-L187] return ((((((((((((((last_1_var_1_19 / -2) <= last_1_var_1_13) && last_1_var_1_15) ? (var_1_1 == ((unsigned char) ((var_1_5 - var_1_6) - var_1_7))) : (var_1_1 == ((unsigned char) (var_1_6 + var_1_7)))) && (var_1_15 ? (var_1_8 == ((signed long int) ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))) : (var_1_8 == ((signed long int) (25 + var_1_6))))) && (((var_1_18 < var_1_1) && var_1_15) ? (var_1_9 == ((unsigned char) ((var_1_18 > var_1_1) || var_1_10))) : (var_1_9 == ((unsigned char) (! var_1_11))))) && (var_1_11 ? (var_1_12 == ((unsigned char) var_1_6)) : 1)) && (var_1_10 ? (var_1_13 == ((unsigned char) var_1_7)) : ((((var_1_6 + var_1_14) - var_1_7) >= var_1_27) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))))) && ((var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27))) ? ((last_1_var_1_18 >= (last_1_var_1_27 + (var_1_14 / var_1_5))) ? (var_1_15 == ((unsigned char) (! var_1_11))) : (((~ last_1_var_1_27) > (var_1_7 - ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))))) ? (var_1_15 == ((unsigned char) (! (! (last_1_var_1_9 && var_1_11))))) : (var_1_15 == ((unsigned char) (! var_1_11))))) : (var_1_11 ? (var_1_15 == ((unsigned char) var_1_17)) : (var_1_15 == ((unsigned char) var_1_17))))) && (((var_1_5 ^ 1) >= (~ -8)) ? (var_1_18 == ((signed char) var_1_6)) : ((var_1_1 == var_1_20) ? (var_1_18 == ((signed char) var_1_14)) : 1))) && (((last_1_var_1_12 > -4) || (last_1_var_1_13 < var_1_5)) ? (var_1_19 == ((signed short int) last_1_var_1_20)) : 1)) && (var_1_11 ? (((var_1_19 >= var_1_19) || (var_1_19 >= ((((var_1_5) > (var_1_1)) ? (var_1_5) : (var_1_1))))) ? (var_1_20 == ((unsigned char) (var_1_7 + var_1_6))) : (var_1_20 == ((unsigned char) (var_1_6 + ((var_1_22 - var_1_23) + var_1_14))))) : ((var_1_1 <= var_1_5) ? (var_1_20 == ((unsigned char) var_1_6)) : 1))) && ((var_1_7 <= var_1_22) ? (var_1_9 ? (var_1_24 == ((double) (var_1_25 + var_1_26))) : 1) : 1)) && ((var_1_22 > var_1_14) ? (var_1_27 == ((signed short int) var_1_19)) : (var_1_27 == ((signed short int) (((((var_1_5) > ((var_1_6 + var_1_12))) ? (var_1_5) : ((var_1_6 + var_1_12)))) - var_1_14))))) && ((var_1_13 <= ((var_1_18 / var_1_22) / var_1_5)) ? (var_1_29 == ((unsigned long int) var_1_19)) : 1) ; [L197] RET, EXPR property() [L197] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=33, var_1_19=2, var_1_1=34, var_1_20=33, var_1_22=32, var_1_23=0, var_1_24=0, var_1_25=2, var_1_26=3, var_1_27=2, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=58, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_17=1, var_1_18=33, var_1_19=2, var_1_1=34, var_1_20=33, var_1_22=32, var_1_23=0, var_1_24=0, var_1_25=2, var_1_26=3, var_1_27=2, var_1_29=128, var_1_5=190, var_1_6=33, var_1_7=1, var_1_8=58, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:13:37,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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 032103455c965390b2cd90e1021eb4797074287a2ad4fda3336b307fb716d96d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:13:40,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:13:40,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:13:40,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:13:40,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:13:40,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:13:40,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:13:40,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:13:40,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:13:40,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:13:40,781 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:13:40,781 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:13:40,782 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:13:40,783 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:13:40,784 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:13:40,784 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:13:40,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:13:40,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:13:40,786 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:13:40,787 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:13:40,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:13:40,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:13:40,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:13:40,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:13:40,789 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:13:40,789 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:13:40,790 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:13:40,790 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:13:40,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:13:40,791 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:13:40,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:13:40,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:13:40,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:13:40,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:40,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:13:40,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:13:40,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:13:40,794 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:13:40,794 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:13:40,795 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:13:40,795 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:13:40,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:13:40,796 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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 032103455c965390b2cd90e1021eb4797074287a2ad4fda3336b307fb716d96d [2023-11-19 05:13:41,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:13:41,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:13:41,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:13:41,354 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:13:41,355 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:13:41,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i [2023-11-19 05:13:44,996 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:13:45,334 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:13:45,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i [2023-11-19 05:13:45,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/data/0b44cffe5/e74dbd4ae0d7497fbad6d8f4edb0a45c/FLAGdb0310895 [2023-11-19 05:13:45,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/data/0b44cffe5/e74dbd4ae0d7497fbad6d8f4edb0a45c [2023-11-19 05:13:45,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:13:45,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:13:45,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:45,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:13:45,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:13:45,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:45,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2685234d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45, skipping insertion in model container [2023-11-19 05:13:45,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:45,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:13:45,593 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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i[916,929] [2023-11-19 05:13:45,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:45,781 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:13:45,804 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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i[916,929] [2023-11-19 05:13:45,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:45,980 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:13:45,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45 WrapperNode [2023-11-19 05:13:45,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:45,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:45,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:13:45,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:13:45,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,056 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 183 [2023-11-19 05:13:46,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:46,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:13:46,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:13:46,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:13:46,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,152 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:13:46,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:13:46,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:13:46,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:13:46,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (1/1) ... [2023-11-19 05:13:46,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:46,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:46,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:13:46,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:13:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:13:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:13:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:13:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:13:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:13:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:13:46,404 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:13:46,407 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:13:47,518 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:13:47,534 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:13:47,535 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:13:47,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:47 BoogieIcfgContainer [2023-11-19 05:13:47,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:13:47,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:13:47,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:13:47,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:13:47,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:13:45" (1/3) ... [2023-11-19 05:13:47,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d78bbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:47, skipping insertion in model container [2023-11-19 05:13:47,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:45" (2/3) ... [2023-11-19 05:13:47,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d78bbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:47, skipping insertion in model container [2023-11-19 05:13:47,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:47" (3/3) ... [2023-11-19 05:13:47,560 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-63.i [2023-11-19 05:13:47,585 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:13:47,585 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:13:47,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:13:47,677 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;@7c726cdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:13:47,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:13:47,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 05:13:47,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-19 05:13:47,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:47,703 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:47,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:47,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:47,711 INFO L85 PathProgramCache]: Analyzing trace with hash 998950060, now seen corresponding path program 1 times [2023-11-19 05:13:47,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:13:47,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842457360] [2023-11-19 05:13:47,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:47,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:47,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:13:47,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:13:47,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:13:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:48,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:13:48,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:48,217 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-11-19 05:13:48,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:13:48,219 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:13:48,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842457360] [2023-11-19 05:13:48,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842457360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:48,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:48,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:13:48,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840258166] [2023-11-19 05:13:48,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:48,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:13:48,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:13:48,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:13:48,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:13:48,277 INFO L87 Difference]: Start difference. First operand has 77 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 05:13:48,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:48,323 INFO L93 Difference]: Finished difference Result 151 states and 255 transitions. [2023-11-19 05:13:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:13:48,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 140 [2023-11-19 05:13:48,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:48,337 INFO L225 Difference]: With dead ends: 151 [2023-11-19 05:13:48,337 INFO L226 Difference]: Without dead ends: 73 [2023-11-19 05:13:48,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:13:48,347 INFO L413 NwaCegarLoop]: 114 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, 114 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:48,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:13:48,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-19 05:13:48,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-19 05:13:48,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 51 states have internal predecessors, (70), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 05:13:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 110 transitions. [2023-11-19 05:13:48,459 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 110 transitions. Word has length 140 [2023-11-19 05:13:48,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:48,459 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 110 transitions. [2023-11-19 05:13:48,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 05:13:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 110 transitions. [2023-11-19 05:13:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-19 05:13:48,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:48,479 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:48,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:48,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:48,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:48,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:48,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2087389782, now seen corresponding path program 1 times [2023-11-19 05:13:48,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:13:48,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802925800] [2023-11-19 05:13:48,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:48,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:48,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:13:48,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:13:48,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:13:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:49,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 05:13:49,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-19 05:13:52,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:53,569 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:13:53,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802925800] [2023-11-19 05:13:53,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802925800] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:13:53,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1032293770] [2023-11-19 05:13:53,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:53,571 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:13:53,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:13:53,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:13:53,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 05:13:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:54,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:13:54,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:54,706 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 05:13:54,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:13:54,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1032293770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:54,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:13:54,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2023-11-19 05:13:54,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635855457] [2023-11-19 05:13:54,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:54,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:13:54,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:13:54,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:13:54,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:13:54,713 INFO L87 Difference]: Start difference. First operand 73 states and 110 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 05:13:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:55,915 INFO L93 Difference]: Finished difference Result 265 states and 400 transitions. [2023-11-19 05:13:55,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:13:55,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2023-11-19 05:13:55,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:55,934 INFO L225 Difference]: With dead ends: 265 [2023-11-19 05:13:55,934 INFO L226 Difference]: Without dead ends: 195 [2023-11-19 05:13:55,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:13:55,939 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 144 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:55,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 376 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 05:13:55,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-19 05:13:55,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 138. [2023-11-19 05:13:55,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 95 states have (on average 1.3789473684210527) internal successors, (131), 95 states have internal predecessors, (131), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-19 05:13:55,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 211 transitions. [2023-11-19 05:13:55,981 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 211 transitions. Word has length 140 [2023-11-19 05:13:55,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:55,983 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 211 transitions. [2023-11-19 05:13:55,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 05:13:55,984 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 211 transitions. [2023-11-19 05:13:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-19 05:13:55,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:55,988 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:55,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-19 05:13:56,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:56,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:56,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:56,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:56,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1868535064, now seen corresponding path program 1 times [2023-11-19 05:13:56,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:13:56,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655262119] [2023-11-19 05:13:56,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:56,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:56,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:13:56,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:13:56,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 05:13:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:56,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 05:13:56,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-19 05:13:59,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:00,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:00,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655262119] [2023-11-19 05:14:00,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655262119] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:00,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1672108873] [2023-11-19 05:14:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:00,286 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:00,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:14:00,289 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:14:00,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 05:14:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:00,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:14:00,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:00,993 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 05:14:00,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:00,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1672108873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:00,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:00,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-11-19 05:14:00,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307560636] [2023-11-19 05:14:00,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:00,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:00,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:00,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:00,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:14:00,998 INFO L87 Difference]: Start difference. First operand 138 states and 211 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 05:14:01,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:01,834 INFO L93 Difference]: Finished difference Result 401 states and 605 transitions. [2023-11-19 05:14:01,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:14:01,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2023-11-19 05:14:01,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:01,841 INFO L225 Difference]: With dead ends: 401 [2023-11-19 05:14:01,841 INFO L226 Difference]: Without dead ends: 266 [2023-11-19 05:14:01,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:14:01,845 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 161 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:01,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 255 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 05:14:01,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-19 05:14:01,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 223. [2023-11-19 05:14:01,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 162 states have (on average 1.382716049382716) internal successors, (224), 164 states have internal predecessors, (224), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-19 05:14:01,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 336 transitions. [2023-11-19 05:14:01,898 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 336 transitions. Word has length 140 [2023-11-19 05:14:01,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:01,900 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 336 transitions. [2023-11-19 05:14:01,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 05:14:01,900 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 336 transitions. [2023-11-19 05:14:01,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-19 05:14:01,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:01,904 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:01,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:02,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:02,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:02,309 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:02,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:02,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1415442906, now seen corresponding path program 1 times [2023-11-19 05:14:02,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:02,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330551582] [2023-11-19 05:14:02,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:02,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:02,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:02,313 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:02,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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 05:14:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:02,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 05:14:02,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-19 05:14:04,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:05,690 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:05,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330551582] [2023-11-19 05:14:05,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330551582] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:05,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1412866348] [2023-11-19 05:14:05,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:05,691 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:05,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:14:05,697 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:14:05,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 05:14:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:06,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 05:14:06,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:08,769 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-19 05:14:08,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:09,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1412866348] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:09,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377311081] [2023-11-19 05:14:09,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:09,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:09,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:09,579 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:09,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 05:14:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:09,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 05:14:09,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-19 05:14:11,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:12,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377311081] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:12,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:14:12,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-19 05:14:12,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18380334] [2023-11-19 05:14:12,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:14:12,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 05:14:12,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:12,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 05:14:12,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:14:12,140 INFO L87 Difference]: Start difference. First operand 223 states and 336 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:14:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:14,293 INFO L93 Difference]: Finished difference Result 602 states and 900 transitions. [2023-11-19 05:14:14,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 05:14:14,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 140 [2023-11-19 05:14:14,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:14,319 INFO L225 Difference]: With dead ends: 602 [2023-11-19 05:14:14,319 INFO L226 Difference]: Without dead ends: 382 [2023-11-19 05:14:14,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 635 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2023-11-19 05:14:14,325 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 141 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:14,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 504 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 05:14:14,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-11-19 05:14:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 270. [2023-11-19 05:14:14,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 186 states have (on average 1.3387096774193548) internal successors, (249), 188 states have internal predecessors, (249), 76 states have call successors, (76), 7 states have call predecessors, (76), 7 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-19 05:14:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 401 transitions. [2023-11-19 05:14:14,389 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 401 transitions. Word has length 140 [2023-11-19 05:14:14,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:14,390 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 401 transitions. [2023-11-19 05:14:14,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:14:14,390 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 401 transitions. [2023-11-19 05:14:14,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-19 05:14:14,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:14,394 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:14,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:14,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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 05:14:14,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:15,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:15,003 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:15,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:15,004 INFO L85 PathProgramCache]: Analyzing trace with hash 557413512, now seen corresponding path program 1 times [2023-11-19 05:14:15,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:15,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065942413] [2023-11-19 05:14:15,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:15,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:15,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:15,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:15,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-19 05:14:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:15,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:14:15,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:15,611 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 343 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-19 05:14:15,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-19 05:14:15,879 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:15,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065942413] [2023-11-19 05:14:15,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065942413] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:15,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1143388370] [2023-11-19 05:14:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:15,880 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:15,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:14:15,882 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:14:15,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 05:14:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:16,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:14:16,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 05:14:16,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:16,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1143388370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:16,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:14:16,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 8 [2023-11-19 05:14:16,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913048296] [2023-11-19 05:14:16,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:16,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:14:16,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:16,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:14:16,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:16,280 INFO L87 Difference]: Start difference. First operand 270 states and 401 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 05:14:16,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:16,552 INFO L93 Difference]: Finished difference Result 629 states and 932 transitions. [2023-11-19 05:14:16,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:14:16,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2023-11-19 05:14:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:16,559 INFO L225 Difference]: With dead ends: 629 [2023-11-19 05:14:16,559 INFO L226 Difference]: Without dead ends: 409 [2023-11-19 05:14:16,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 410 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:16,562 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 52 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:16,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 246 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:14:16,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-19 05:14:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 403. [2023-11-19 05:14:16,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 291 states have (on average 1.3470790378006874) internal successors, (392), 297 states have internal predecessors, (392), 100 states have call successors, (100), 11 states have call predecessors, (100), 11 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-19 05:14:16,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 592 transitions. [2023-11-19 05:14:16,652 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 592 transitions. Word has length 140 [2023-11-19 05:14:16,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:16,655 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 592 transitions. [2023-11-19 05:14:16,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 05:14:16,656 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 592 transitions. [2023-11-19 05:14:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-19 05:14:16,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:16,659 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:16,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:16,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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 05:14:17,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:17,063 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:17,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:17,063 INFO L85 PathProgramCache]: Analyzing trace with hash 928874267, now seen corresponding path program 1 times [2023-11-19 05:14:17,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:17,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205746981] [2023-11-19 05:14:17,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:17,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:17,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:17,066 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:17,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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 (12)] Waiting until timeout for monitored process [2023-11-19 05:14:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:17,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:14:17,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:17,686 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-19 05:14:17,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:17,951 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-19 05:14:17,951 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:17,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205746981] [2023-11-19 05:14:17,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205746981] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:17,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1647006256] [2023-11-19 05:14:17,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:17,952 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:17,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:14:17,953 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:14:17,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-19 05:14:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:18,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:14:18,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:19,000 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-19 05:14:19,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-19 05:14:19,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1647006256] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:19,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951276089] [2023-11-19 05:14:19,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:19,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:19,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:19,235 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:19,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 05:14:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:19,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:14:19,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-19 05:14:19,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:19,947 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-19 05:14:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951276089] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:19,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:14:19,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5, 5, 5, 5] total 8 [2023-11-19 05:14:19,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216535413] [2023-11-19 05:14:19,948 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:14:19,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 05:14:19,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:19,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 05:14:19,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:19,951 INFO L87 Difference]: Start difference. First operand 403 states and 592 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-19 05:14:21,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:21,329 INFO L93 Difference]: Finished difference Result 759 states and 1096 transitions. [2023-11-19 05:14:21,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 05:14:21,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 141 [2023-11-19 05:14:21,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:21,337 INFO L225 Difference]: With dead ends: 759 [2023-11-19 05:14:21,337 INFO L226 Difference]: Without dead ends: 406 [2023-11-19 05:14:21,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 852 GetRequests, 832 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-11-19 05:14:21,340 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 241 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:21,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 289 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 05:14:21,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-19 05:14:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 378. [2023-11-19 05:14:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 269 states have (on average 1.2899628252788105) internal successors, (347), 274 states have internal predecessors, (347), 94 states have call successors, (94), 14 states have call predecessors, (94), 14 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-19 05:14:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 535 transitions. [2023-11-19 05:14:21,393 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 535 transitions. Word has length 141 [2023-11-19 05:14:21,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:21,394 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 535 transitions. [2023-11-19 05:14:21,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-19 05:14:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 535 transitions. [2023-11-19 05:14:21,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-19 05:14:21,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:21,398 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:21,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:21,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:21,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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 (12)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:22,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:22,026 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:22,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:22,026 INFO L85 PathProgramCache]: Analyzing trace with hash -306977317, now seen corresponding path program 1 times [2023-11-19 05:14:22,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:22,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343261662] [2023-11-19 05:14:22,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:22,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:22,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:22,029 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:22,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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 (15)] Waiting until timeout for monitored process [2023-11-19 05:14:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:22,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:14:22,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-19 05:14:22,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:23,153 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-19 05:14:23,153 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:23,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343261662] [2023-11-19 05:14:23,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343261662] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:23,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2082114544] [2023-11-19 05:14:23,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:23,154 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:23,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:14:23,158 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:14:23,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-19 05:14:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:23,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:23,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 05:14:23,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:23,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2082114544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:23,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:14:23,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7] total 9 [2023-11-19 05:14:23,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814906914] [2023-11-19 05:14:23,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:23,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:23,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:23,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:23,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:14:23,617 INFO L87 Difference]: Start difference. First operand 378 states and 535 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 05:14:24,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:24,358 INFO L93 Difference]: Finished difference Result 704 states and 1000 transitions. [2023-11-19 05:14:24,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:14:24,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2023-11-19 05:14:24,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:24,365 INFO L225 Difference]: With dead ends: 704 [2023-11-19 05:14:24,365 INFO L226 Difference]: Without dead ends: 380 [2023-11-19 05:14:24,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 412 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:14:24,368 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 88 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:24,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 320 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:14:24,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-19 05:14:24,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2023-11-19 05:14:24,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 269 states have (on average 1.275092936802974) internal successors, (343), 274 states have internal predecessors, (343), 94 states have call successors, (94), 14 states have call predecessors, (94), 14 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-19 05:14:24,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 531 transitions. [2023-11-19 05:14:24,419 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 531 transitions. Word has length 141 [2023-11-19 05:14:24,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:24,420 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 531 transitions. [2023-11-19 05:14:24,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 05:14:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 531 transitions. [2023-11-19 05:14:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-19 05:14:24,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:24,423 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:24,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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 (15)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:24,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:24,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:24,840 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:24,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:24,840 INFO L85 PathProgramCache]: Analyzing trace with hash -249719015, now seen corresponding path program 1 times [2023-11-19 05:14:24,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:24,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28067954] [2023-11-19 05:14:24,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:24,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:24,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:24,843 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:24,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bb20d-9007-4eb9-875d-5b8eadb3ac3f/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