./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire --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 bc4343435e8b0f90e9fafca790203e82878241d49cdad6f8cc3fc03787f7fe2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:30,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:30,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:33:30,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:30,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:30,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:30,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:30,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:30,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:30,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:30,439 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:30,439 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:30,440 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:30,441 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:30,442 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:30,442 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:30,443 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:30,443 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:30,443 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:30,444 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:30,444 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:30,445 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:30,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:30,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:30,447 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:30,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:30,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:30,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:30,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:30,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:30,450 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:30,451 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:30,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:30,451 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:30,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:30,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:30,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:30,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:30,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:30,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:30,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:30,453 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:30,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:30,454 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:30,454 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:30,455 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:30,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:30,455 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_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4343435e8b0f90e9fafca790203e82878241d49cdad6f8cc3fc03787f7fe2b [2023-11-23 20:33:30,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:30,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:30,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:30,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:30,790 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:30,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i [2023-11-23 20:33:33,860 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:34,090 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:34,091 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i [2023-11-23 20:33:34,101 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/data/839c8db2d/836097c40f1b44b7820b7ee9c42289c5/FLAG35e846145 [2023-11-23 20:33:34,117 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/data/839c8db2d/836097c40f1b44b7820b7ee9c42289c5 [2023-11-23 20:33:34,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:34,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:34,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:34,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:34,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:34,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5e5a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34, skipping insertion in model container [2023-11-23 20:33:34,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,165 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:34,368 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_ab299a16-20e6-4aa2-b629-c011a5e29da2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i[915,928] [2023-11-23 20:33:34,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:34,445 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:34,459 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_ab299a16-20e6-4aa2-b629-c011a5e29da2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i[915,928] [2023-11-23 20:33:34,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:34,514 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:34,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34 WrapperNode [2023-11-23 20:33:34,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:34,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:34,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:34,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:34,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,608 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 160 [2023-11-23 20:33:34,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:34,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:34,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:34,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:34,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:34,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:34,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:34,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:34,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:34,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:34,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:34,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:34,743 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:34,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:34,832 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:34,835 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:35,229 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:35,446 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:35,452 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:35,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:35 BoogieIcfgContainer [2023-11-23 20:33:35,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:35,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:35,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:35,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:35,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:34" (1/3) ... [2023-11-23 20:33:35,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2cbaac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:35, skipping insertion in model container [2023-11-23 20:33:35,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (2/3) ... [2023-11-23 20:33:35,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2cbaac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:35, skipping insertion in model container [2023-11-23 20:33:35,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:35" (3/3) ... [2023-11-23 20:33:35,469 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-96.i [2023-11-23 20:33:35,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:35,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:35,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:35,558 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;@610ab873, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:35,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:35,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 20:33:35,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-23 20:33:35,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:35,578 INFO L195 NwaCegarLoop]: trace histogram [27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:35,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:35,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:35,585 INFO L85 PathProgramCache]: Analyzing trace with hash -983424027, now seen corresponding path program 1 times [2023-11-23 20:33:35,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:35,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362666494] [2023-11-23 20:33:35,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:35,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:36,220 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:33:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:36,476 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:33:36,479 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:33:36,480 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:33:36,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:33:36,488 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:33:36,495 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:33:36,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:33:36 BoogieIcfgContainer [2023-11-23 20:33:36,650 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:33:36,653 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:33:36,653 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:33:36,654 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:33:36,654 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:35" (3/4) ... [2023-11-23 20:33:36,659 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:33:36,660 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:33:36,662 INFO L158 Benchmark]: Toolchain (without parser) took 2539.43ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 81.5MB in the beginning and 138.8MB in the end (delta: -57.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:36,662 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:36,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.57ms. Allocated memory is still 125.8MB. Free memory was 81.3MB in the beginning and 67.5MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:33:36,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.30ms. Allocated memory is still 125.8MB. Free memory was 67.2MB in the beginning and 64.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:33:36,665 INFO L158 Benchmark]: Boogie Preprocessor took 50.25ms. Allocated memory is still 125.8MB. Free memory was 64.1MB in the beginning and 62.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:36,671 INFO L158 Benchmark]: RCFGBuilder took 793.88ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 62.2MB in the beginning and 133.9MB in the end (delta: -71.7MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2023-11-23 20:33:36,673 INFO L158 Benchmark]: TraceAbstraction took 1191.91ms. Allocated memory is still 174.1MB. Free memory was 132.9MB in the beginning and 138.8MB in the end (delta: -6.0MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:36,674 INFO L158 Benchmark]: Witness Printer took 6.99ms. Allocated memory is still 174.1MB. Free memory was 138.8MB in the beginning and 138.8MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:36,683 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.57ms. Allocated memory is still 125.8MB. Free memory was 81.3MB in the beginning and 67.5MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.30ms. Allocated memory is still 125.8MB. Free memory was 67.2MB in the beginning and 64.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.25ms. Allocated memory is still 125.8MB. Free memory was 64.1MB in the beginning and 62.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 793.88ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 62.2MB in the beginning and 133.9MB in the end (delta: -71.7MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1191.91ms. Allocated memory is still 174.1MB. Free memory was 132.9MB in the beginning and 138.8MB in the end (delta: -6.0MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. * Witness Printer took 6.99ms. Allocated memory is still 174.1MB. Free memory was 138.8MB in the beginning and 138.8MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 135, overapproximation of someBinaryFLOATComparisonOperation at line 135, overapproximation of someBinaryArithmeticDOUBLEoperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 16; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_6 = 1; [L25] signed char var_1_8 = -10; [L26] unsigned short int var_1_9 = 4; [L27] signed char var_1_10 = 8; [L28] unsigned short int var_1_12 = 64314; [L29] unsigned short int var_1_13 = 26169; [L30] signed char var_1_17 = 50; [L31] signed char var_1_18 = 16; [L32] signed char var_1_19 = 5; [L33] signed char var_1_20 = 0; [L34] signed char var_1_21 = 50; [L35] signed char var_1_22 = 16; [L36] unsigned char var_1_23 = 16; [L37] unsigned char var_1_24 = 1; [L38] unsigned char var_1_25 = 0; [L39] double var_1_27 = 0.25; [L40] double var_1_28 = 10.25; [L41] double var_1_29 = 1000.25; [L42] double var_1_30 = 9.5; [L43] float var_1_31 = 63.5; [L44] unsigned short int last_1_var_1_9 = 4; [L139] isInitial = 1 [L140] FCALL initially() [L141] COND TRUE 1 [L142] CALL updateLastVariables() [L132] last_1_var_1_9 = var_1_9 [L142] RET updateLastVariables() [L143] CALL updateVariables() [L88] var_1_4 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_6=1, var_1_8=-10, var_1_9=4] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_6=1, var_1_8=-10, var_1_9=4] [L90] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=-10, var_1_9=4] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=-10, var_1_9=4] [L91] var_1_6 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_8=-10, var_1_9=4] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_8=-10, var_1_9=4] [L93] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=-10, var_1_9=4] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=-10, var_1_9=4] [L94] var_1_8 = __VERIFIER_nondet_char() [L95] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L96] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=8, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L97] var_1_10 = __VERIFIER_nondet_char() [L98] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L99] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=64314, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L100] var_1_12 = __VERIFIER_nondet_ushort() [L101] CALL assume_abort_if_not(var_1_12 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_12 >= 49150) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L102] CALL assume_abort_if_not(var_1_12 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_12 <= 65534) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=26169, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L103] var_1_13 = __VERIFIER_nondet_ushort() [L104] CALL assume_abort_if_not(var_1_13 >= 24575) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_13 >= 24575) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L105] CALL assume_abort_if_not(var_1_13 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_13 <= 32767) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=16, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L106] var_1_18 = __VERIFIER_nondet_char() [L107] CALL assume_abort_if_not(var_1_18 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_18 >= -1) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L108] CALL assume_abort_if_not(var_1_18 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_18 <= 126) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=5, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L109] var_1_19 = __VERIFIER_nondet_char() [L110] CALL assume_abort_if_not(var_1_19 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_19 >= -1) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L111] CALL assume_abort_if_not(var_1_19 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_19 <= 126) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L112] var_1_20 = __VERIFIER_nondet_char() [L113] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L114] CALL assume_abort_if_not(var_1_20 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_20 <= 63) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=50, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L115] var_1_21 = __VERIFIER_nondet_char() [L116] CALL assume_abort_if_not(var_1_21 >= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_21 >= 31) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L117] CALL assume_abort_if_not(var_1_21 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_21 <= 63) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=16, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L118] var_1_22 = __VERIFIER_nondet_char() [L119] CALL assume_abort_if_not(var_1_22 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_22 >= 0) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L120] CALL assume_abort_if_not(var_1_22 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_22 <= 31) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L121] var_1_25 = __VERIFIER_nondet_uchar() [L122] CALL assume_abort_if_not(var_1_25 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_25 >= 0) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L123] CALL assume_abort_if_not(var_1_25 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_25 <= 0) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_28=41/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L124] var_1_28 = __VERIFIER_nondet_double() [L125] CALL assume_abort_if_not((var_1_28 >= -230584.3009213691390e+13F && var_1_28 <= -1.0e-20F) || (var_1_28 <= 2305843.009213691390e+12F && var_1_28 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not((var_1_28 >= -230584.3009213691390e+13F && var_1_28 <= -1.0e-20F) || (var_1_28 <= 2305843.009213691390e+12F && var_1_28 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_29=4001/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L126] var_1_29 = __VERIFIER_nondet_double() [L127] CALL assume_abort_if_not((var_1_29 >= -230584.3009213691390e+13F && var_1_29 <= -1.0e-20F) || (var_1_29 <= 2305843.009213691390e+12F && var_1_29 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not((var_1_29 >= -230584.3009213691390e+13F && var_1_29 <= -1.0e-20F) || (var_1_29 <= 2305843.009213691390e+12F && var_1_29 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_30=19/2, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L128] var_1_30 = __VERIFIER_nondet_double() [L129] CALL assume_abort_if_not((var_1_30 >= -461168.6018427382800e+13F && var_1_30 <= -1.0e-20F) || (var_1_30 <= 4611686.018427382800e+12F && var_1_30 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not((var_1_30 >= -461168.6018427382800e+13F && var_1_30 <= -1.0e-20F) || (var_1_30 <= 4611686.018427382800e+12F && var_1_30 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=50, var_1_18=126, var_1_19=30, var_1_1=16, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=1/4, var_1_31=127/2, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=4] [L143] RET updateVariables() [L144] CALL step() [L48] COND FALSE !((- last_1_var_1_9) < (last_1_var_1_9 + -500)) [L51] var_1_17 = (((((var_1_18) < (var_1_19)) ? (var_1_18) : (var_1_19))) - (var_1_20 + (var_1_21 - var_1_22))) [L52] COND TRUE \read(var_1_4) [L53] var_1_24 = (! var_1_25) [L57] var_1_31 = var_1_30 [L58] COND FALSE !(var_1_23 < var_1_23) [L69] var_1_1 = var_1_8 [L71] signed char stepLocal_0 = var_1_1; [L72] COND FALSE !(stepLocal_0 < (-1 - var_1_10)) [L79] var_1_9 = var_1_13 [L81] COND FALSE !(var_1_9 < (var_1_21 + var_1_23)) [L84] var_1_27 = var_1_28 [L144] RET step() [L145] CALL, EXPR property() [L135-L136] return (((((((var_1_23 < var_1_23) ? ((var_1_24 && var_1_24) ? (var_1_24 ? ((var_1_24 && (var_1_24 || var_1_24)) ? (var_1_1 == ((signed char) -5)) : 1) : 1) : (var_1_1 == ((signed char) var_1_8))) : (var_1_1 == ((signed char) var_1_8))) && ((var_1_1 < (-1 - var_1_10)) ? (var_1_24 ? (var_1_9 == ((unsigned short int) (var_1_10 + ((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))))) : (var_1_9 == ((unsigned short int) ((var_1_12 - var_1_10) - ((var_1_13 - var_1_23) - ((((var_1_23) < (var_1_23)) ? (var_1_23) : (var_1_23)))))))) : (var_1_9 == ((unsigned short int) var_1_13)))) && (var_1_17 == ((signed char) (((((var_1_18) < (var_1_19)) ? (var_1_18) : (var_1_19))) - (var_1_20 + (var_1_21 - var_1_22)))))) && (((- last_1_var_1_9) < (last_1_var_1_9 + -500)) ? (var_1_23 == ((unsigned char) var_1_20)) : 1)) && (var_1_4 ? (var_1_24 == ((unsigned char) (! var_1_25))) : (var_1_24 == ((unsigned char) (var_1_6 && ((var_1_10 >= var_1_17) && var_1_25)))))) && ((var_1_9 < (var_1_21 + var_1_23)) ? (var_1_27 == ((double) ((var_1_28 + var_1_29) + var_1_30))) : (var_1_27 == ((double) var_1_28)))) && (var_1_31 == ((float) var_1_30)) ; [L145] RET, EXPR property() [L145] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=-1, var_1_18=126, var_1_19=30, var_1_1=126, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=64320, var_1_28=64320, var_1_30=64319, var_1_31=64319, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=24575] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=4, var_1_10=32, var_1_12=49150, var_1_13=24575, var_1_17=-1, var_1_18=126, var_1_19=30, var_1_1=126, var_1_20=0, var_1_21=31, var_1_22=0, var_1_23=16, var_1_24=1, var_1_25=0, var_1_27=64320, var_1_28=64320, var_1_30=64319, var_1_31=64319, var_1_4=1, var_1_6=1, var_1_8=126, var_1_9=24575] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 27, 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=51occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 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 [2023-11-23 20:33:36,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire --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 bc4343435e8b0f90e9fafca790203e82878241d49cdad6f8cc3fc03787f7fe2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:39,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:39,610 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:33:39,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:39,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:39,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:39,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:39,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:39,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:39,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:39,687 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:39,687 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:39,688 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:39,690 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:39,690 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:39,691 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:39,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:39,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:39,693 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:39,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:39,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:39,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:39,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:39,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:39,696 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:33:39,697 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:33:39,697 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:33:39,698 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:39,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:39,698 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:39,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:39,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:33:39,701 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:39,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:39,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:39,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:39,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:39,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:39,702 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:33:39,703 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:39,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:39,704 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:39,704 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:39,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:39,706 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_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4343435e8b0f90e9fafca790203e82878241d49cdad6f8cc3fc03787f7fe2b [2023-11-23 20:33:40,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:40,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:40,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:40,212 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:40,212 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:40,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i [2023-11-23 20:33:43,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:43,785 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:43,785 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i [2023-11-23 20:33:43,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/data/8750eb6fb/f6b7666c6a9049bf9523a359db1c4459/FLAGb546a15d2 [2023-11-23 20:33:43,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/data/8750eb6fb/f6b7666c6a9049bf9523a359db1c4459 [2023-11-23 20:33:43,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:43,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:43,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:43,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:43,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:43,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:43" (1/1) ... [2023-11-23 20:33:43,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307e96d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:43, skipping insertion in model container [2023-11-23 20:33:43,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:43" (1/1) ... [2023-11-23 20:33:43,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:44,066 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_ab299a16-20e6-4aa2-b629-c011a5e29da2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i[915,928] [2023-11-23 20:33:44,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:44,206 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:44,229 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_ab299a16-20e6-4aa2-b629-c011a5e29da2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-96.i[915,928] [2023-11-23 20:33:44,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:44,279 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:44,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44 WrapperNode [2023-11-23 20:33:44,279 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:44,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:44,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:44,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:44,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,316 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,366 INFO L138 Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2023-11-23 20:33:44,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:44,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:44,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:44,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:44,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:44,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:44,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:44,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:44,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:44,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:44,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:44,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:44,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:44,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:33:44,564 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:44,564 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:44,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:44,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:44,700 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:44,705 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:48,072 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:48,120 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:48,120 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:48,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:48 BoogieIcfgContainer [2023-11-23 20:33:48,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:48,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:48,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:48,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:48,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:43" (1/3) ... [2023-11-23 20:33:48,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606b5586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:48, skipping insertion in model container [2023-11-23 20:33:48,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44" (2/3) ... [2023-11-23 20:33:48,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606b5586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:48, skipping insertion in model container [2023-11-23 20:33:48,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:48" (3/3) ... [2023-11-23 20:33:48,129 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-96.i [2023-11-23 20:33:48,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:48,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:48,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:48,210 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;@7485a75d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:48,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:48,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 38 states have internal predecessors, (51), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 20:33:48,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-23 20:33:48,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:48,235 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:48,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:48,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:48,242 INFO L85 PathProgramCache]: Analyzing trace with hash -715942634, now seen corresponding path program 1 times [2023-11-23 20:33:48,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:48,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995970707] [2023-11-23 20:33:48,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:48,264 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 [2023-11-23 20:33:48,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:48,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:48,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:48,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:33:48,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 724 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2023-11-23 20:33:48,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:48,913 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:48,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995970707] [2023-11-23 20:33:48,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995970707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:48,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:48,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:33:48,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110173658] [2023-11-23 20:33:48,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:48,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:33:48,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:33:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:33:48,973 INFO L87 Difference]: Start difference. First operand has 67 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 38 states have internal predecessors, (51), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 20:33:51,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:33:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:51,026 INFO L93 Difference]: Finished difference Result 128 states and 229 transitions. [2023-11-23 20:33:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:33:51,047 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 163 [2023-11-23 20:33:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:51,055 INFO L225 Difference]: With dead ends: 128 [2023-11-23 20:33:51,055 INFO L226 Difference]: Without dead ends: 62 [2023-11-23 20:33:51,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:33:51,063 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:51,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-23 20:33:51,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-23 20:33:51,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-23 20:33:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 33 states have internal predecessors, (39), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 20:33:51,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 93 transitions. [2023-11-23 20:33:51,127 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 93 transitions. Word has length 163 [2023-11-23 20:33:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:51,128 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 93 transitions. [2023-11-23 20:33:51,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 20:33:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 93 transitions. [2023-11-23 20:33:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-23 20:33:51,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:51,134 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:51,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:51,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:51,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:51,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:51,338 INFO L85 PathProgramCache]: Analyzing trace with hash -358824420, now seen corresponding path program 1 times [2023-11-23 20:33:51,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:51,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913355905] [2023-11-23 20:33:51,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:51,340 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 [2023-11-23 20:33:51,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:51,342 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:51,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:51,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:33:51,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-11-23 20:33:52,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:52,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:52,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913355905] [2023-11-23 20:33:52,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913355905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:52,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:52,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583772260] [2023-11-23 20:33:52,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:52,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:33:52,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:52,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:33:52,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:33:52,659 INFO L87 Difference]: Start difference. First operand 62 states and 93 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-23 20:33:55,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:33:55,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:55,832 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2023-11-23 20:33:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:33:55,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 163 [2023-11-23 20:33:55,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:55,856 INFO L225 Difference]: With dead ends: 185 [2023-11-23 20:33:55,856 INFO L226 Difference]: Without dead ends: 124 [2023-11-23 20:33:55,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:33:55,859 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 45 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:55,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 262 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-23 20:33:55,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-23 20:33:55,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 110. [2023-11-23 20:33:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 53 states have internal predecessors, (59), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-23 20:33:55,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 167 transitions. [2023-11-23 20:33:55,900 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 167 transitions. Word has length 163 [2023-11-23 20:33:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:55,902 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 167 transitions. [2023-11-23 20:33:55,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-23 20:33:55,902 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 167 transitions. [2023-11-23 20:33:55,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-23 20:33:55,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:55,906 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:55,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:56,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:56,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:56,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:56,116 INFO L85 PathProgramCache]: Analyzing trace with hash 342240158, now seen corresponding path program 1 times [2023-11-23 20:33:56,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:56,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065414420] [2023-11-23 20:33:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:56,117 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 [2023-11-23 20:33:56,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:56,119 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:56,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 20:33:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:56,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:33:56,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:58,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 928 proven. 108 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2023-11-23 20:33:58,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:58,623 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:58,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065414420] [2023-11-23 20:33:58,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065414420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:33:58,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1968597687] [2023-11-23 20:33:58,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:58,624 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:58,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:33:58,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:33:58,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-23 20:33:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:59,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:33:59,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 686 proven. 48 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2023-11-23 20:33:59,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:34:00,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1968597687] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:00,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944189888] [2023-11-23 20:34:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:00,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:00,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:00,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:00,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 20:34:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:00,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:34:00,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:01,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 928 proven. 108 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2023-11-23 20:34:01,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:34:02,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944189888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:02,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 20:34:02,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 12] total 13 [2023-11-23 20:34:02,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046692831] [2023-11-23 20:34:02,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 20:34:02,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 20:34:02,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:34:02,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 20:34:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-11-23 20:34:02,042 INFO L87 Difference]: Start difference. First operand 110 states and 167 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 4 states have call successors, (42), 4 states have call predecessors, (42), 7 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2023-11-23 20:34:07,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:07,490 INFO L93 Difference]: Finished difference Result 280 states and 389 transitions. [2023-11-23 20:34:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 20:34:07,491 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 4 states have call successors, (42), 4 states have call predecessors, (42), 7 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) Word has length 163 [2023-11-23 20:34:07,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:07,501 INFO L225 Difference]: With dead ends: 280 [2023-11-23 20:34:07,501 INFO L226 Difference]: Without dead ends: 219 [2023-11-23 20:34:07,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=400, Invalid=1082, Unknown=0, NotChecked=0, Total=1482 [2023-11-23 20:34:07,505 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 117 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:07,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 438 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-23 20:34:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-23 20:34:07,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 200. [2023-11-23 20:34:07,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 105 states have (on average 1.0666666666666667) internal successors, (112), 106 states have internal predecessors, (112), 81 states have call successors, (81), 13 states have call predecessors, (81), 13 states have return successors, (81), 80 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-23 20:34:07,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 274 transitions. [2023-11-23 20:34:07,559 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 274 transitions. Word has length 163 [2023-11-23 20:34:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:07,560 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 274 transitions. [2023-11-23 20:34:07,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 4 states have call successors, (42), 4 states have call predecessors, (42), 7 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2023-11-23 20:34:07,561 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 274 transitions. [2023-11-23 20:34:07,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-23 20:34:07,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:07,565 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:07,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:07,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:07,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:08,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 20:34:08,175 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:08,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:08,175 INFO L85 PathProgramCache]: Analyzing trace with hash 342299740, now seen corresponding path program 1 times [2023-11-23 20:34:08,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:08,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193169595] [2023-11-23 20:34:08,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:08,177 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 [2023-11-23 20:34:08,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:08,178 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:34:08,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab299a16-20e6-4aa2-b629-c011a5e29da2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:34:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:08,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-23 20:34:08,621 INFO L285 TraceCheckSpWp]: Computing forward predicates...