./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh --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 3980aec6b620dedacc05e58a868efa4198422dba376226818fb2c2d10e4fc0b3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:57:58,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:57:58,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:57:58,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:57:58,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:57:58,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:57:58,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:57:58,636 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:57:58,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:57:58,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:57:58,638 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:57:58,638 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:57:58,639 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:57:58,639 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:57:58,640 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:57:58,640 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:57:58,641 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:57:58,641 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:57:58,641 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:57:58,642 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:57:58,643 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:57:58,643 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:57:58,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:57:58,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:57:58,645 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:57:58,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:57:58,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:57:58,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:57:58,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:57:58,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:57:58,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:57:58,648 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:57:58,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:57:58,648 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:57:58,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:57:58,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:57:58,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:57:58,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:57:58,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:57:58,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:57:58,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:57:58,650 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:57:58,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:57:58,651 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:57:58,651 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:57:58,651 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:57:58,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:57:58,652 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_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3980aec6b620dedacc05e58a868efa4198422dba376226818fb2c2d10e4fc0b3 [2023-12-02 18:57:58,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:57:58,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:57:58,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:57:58,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:57:58,918 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:57:58,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i [2023-12-02 18:58:03,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:58:04,062 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:58:04,063 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i [2023-12-02 18:58:04,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/data/07b8c92cc/339aa94bd37d4f66961a1a65af38ccd2/FLAG87eb2a346 [2023-12-02 18:58:04,089 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/data/07b8c92cc/339aa94bd37d4f66961a1a65af38ccd2 [2023-12-02 18:58:04,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:58:04,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:58:04,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:58:04,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:58:04,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:58:04,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4572e2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04, skipping insertion in model container [2023-12-02 18:58:04,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,140 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:58:04,263 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_637bce95-7c99-4d5c-b537-1289e0260185/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i[916,929] [2023-12-02 18:58:04,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:58:04,360 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:58:04,371 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_637bce95-7c99-4d5c-b537-1289e0260185/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i[916,929] [2023-12-02 18:58:04,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:58:04,435 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:58:04,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04 WrapperNode [2023-12-02 18:58:04,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:58:04,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:58:04,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:58:04,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:58:04,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,508 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 230 [2023-12-02 18:58:04,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:58:04,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:58:04,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:58:04,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:58:04,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:58:04,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:58:04,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:58:04,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:58:04,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (1/1) ... [2023-12-02 18:58:04,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:58:04,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:58:04,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:58:04,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:58:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:58:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:58:04,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:58:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:58:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:58:04,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:58:04,731 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:58:04,734 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:58:05,170 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:58:05,560 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:58:05,560 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:58:05,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:58:05 BoogieIcfgContainer [2023-12-02 18:58:05,562 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:58:05,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:58:05,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:58:05,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:58:05,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:58:04" (1/3) ... [2023-12-02 18:58:05,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b59d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:58:05, skipping insertion in model container [2023-12-02 18:58:05,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:04" (2/3) ... [2023-12-02 18:58:05,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b59d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:58:05, skipping insertion in model container [2023-12-02 18:58:05,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:58:05" (3/3) ... [2023-12-02 18:58:05,571 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-17.i [2023-12-02 18:58:05,592 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:58:05,592 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:58:05,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:58:05,653 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;@1562d258, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:58:05,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:58:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 18:58:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 18:58:05,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:58:05,671 INFO L195 NwaCegarLoop]: trace histogram [24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:58:05,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:58:05,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:58:05,677 INFO L85 PathProgramCache]: Analyzing trace with hash 153423506, now seen corresponding path program 1 times [2023-12-02 18:58:05,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:58:05,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270816514] [2023-12-02 18:58:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:58:05,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:58:05,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 18:58:05,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [129523090] [2023-12-02 18:58:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:58:05,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:58:05,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:58:05,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:58:05,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 18:58:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:58:06,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:58:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:58:06,436 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:58:06,438 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:58:06,439 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:58:06,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:58:06,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:58:06,646 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:58:06,650 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:58:06,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:58:06 BoogieIcfgContainer [2023-12-02 18:58:06,748 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:58:06,749 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:58:06,749 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:58:06,749 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:58:06,749 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:58:05" (3/4) ... [2023-12-02 18:58:06,751 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:58:06,752 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:58:06,753 INFO L158 Benchmark]: Toolchain (without parser) took 2659.97ms. Allocated memory is still 140.5MB. Free memory was 109.9MB in the beginning and 68.6MB in the end (delta: 41.3MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2023-12-02 18:58:06,753 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 107.0MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:58:06,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.88ms. Allocated memory is still 140.5MB. Free memory was 109.5MB in the beginning and 93.6MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 18:58:06,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.46ms. Allocated memory is still 140.5MB. Free memory was 93.6MB in the beginning and 88.1MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 18:58:06,755 INFO L158 Benchmark]: Boogie Preprocessor took 54.25ms. Allocated memory is still 140.5MB. Free memory was 88.1MB in the beginning and 85.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:58:06,756 INFO L158 Benchmark]: RCFGBuilder took 997.65ms. Allocated memory is still 140.5MB. Free memory was 85.2MB in the beginning and 61.1MB in the end (delta: 24.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-12-02 18:58:06,756 INFO L158 Benchmark]: TraceAbstraction took 1183.41ms. Allocated memory is still 140.5MB. Free memory was 60.4MB in the beginning and 68.6MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:58:06,757 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 140.5MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:58:06,760 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 107.0MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.88ms. Allocated memory is still 140.5MB. Free memory was 109.5MB in the beginning and 93.6MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.46ms. Allocated memory is still 140.5MB. Free memory was 93.6MB in the beginning and 88.1MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.25ms. Allocated memory is still 140.5MB. Free memory was 88.1MB in the beginning and 85.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 997.65ms. Allocated memory is still 140.5MB. Free memory was 85.2MB in the beginning and 61.1MB in the end (delta: 24.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1183.41ms. Allocated memory is still 140.5MB. Free memory was 60.4MB in the beginning and 68.6MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 140.5MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 77, overapproximation of someBinaryFLOATComparisonOperation at line 178, overapproximation of bitwiseOr at line 101, overapproximation of bitwiseAnd at line 113, overapproximation of someUnaryDOUBLEoperation at line 114, overapproximation of someBinaryDOUBLEComparisonOperation at line 63, overapproximation of someBinaryArithmeticFLOAToperation at line 84. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_8 = 0; [L24] unsigned char var_1_9 = 1; [L25] signed short int var_1_10 = 1000; [L26] signed long int var_1_11 = -10; [L27] signed short int var_1_12 = 16; [L28] signed short int var_1_14 = 0; [L29] double var_1_16 = 7.3; [L30] double var_1_17 = 0.2; [L31] float var_1_18 = 3.5; [L32] float var_1_19 = 128.2; [L33] float var_1_20 = 5.8; [L34] signed char var_1_21 = 16; [L35] unsigned char var_1_22 = 1; [L36] signed long int var_1_23 = -128; [L37] unsigned short int var_1_24 = 128; [L38] float var_1_26 = 31.25; [L39] float var_1_27 = 0.6; [L40] float var_1_28 = 127.2; [L41] float var_1_29 = 128.18; [L42] float var_1_30 = 31.8; [L43] unsigned char var_1_31 = 25; [L44] unsigned char var_1_33 = 5; [L45] unsigned char var_1_34 = 2; [L46] unsigned char var_1_35 = 128; [L47] unsigned char last_1_var_1_1 = 1; [L48] signed short int last_1_var_1_14 = 0; [L49] signed long int last_1_var_1_23 = -128; [L50] unsigned char last_1_var_1_31 = 25; [L182] isInitial = 1 [L183] FCALL initially() [L184] COND TRUE 1 [L185] CALL updateLastVariables() [L172] last_1_var_1_1 = var_1_1 [L173] last_1_var_1_14 = var_1_14 [L174] last_1_var_1_23 = var_1_23 [L175] last_1_var_1_31 = var_1_31 [L185] RET updateLastVariables() [L186] CALL updateVariables() [L132] var_1_8 = __VERIFIER_nondet_uchar() [L133] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=-10, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_9=1] [L20] COND FALSE !(!cond) [L133] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=-10, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_9=1] [L134] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=-10, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L134] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=-10, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L135] var_1_9 = __VERIFIER_nondet_uchar() [L136] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=-10, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L136] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=-10, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L137] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=-10, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L137] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=-10, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L138] var_1_11 = __VERIFIER_nondet_long() [L139] CALL assume_abort_if_not(var_1_11 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_11 >= -2147483648) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L140] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L141] CALL assume_abort_if_not(var_1_11 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_11 != 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=16, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L142] var_1_12 = __VERIFIER_nondet_short() [L143] CALL assume_abort_if_not(var_1_12 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_12 >= -1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L144] CALL assume_abort_if_not(var_1_12 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_12 <= 32766) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_17=1/5, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L145] var_1_17 = __VERIFIER_nondet_double() [L146] CALL assume_abort_if_not((var_1_17 >= -230584.3009213691390e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 2305843.009213691390e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not((var_1_17 >= -230584.3009213691390e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 2305843.009213691390e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_19=641/5, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L147] var_1_19 = __VERIFIER_nondet_float() [L148] CALL assume_abort_if_not((var_1_19 >= -461168.6018427382800e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not((var_1_19 >= -461168.6018427382800e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=16, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L149] var_1_21 = __VERIFIER_nondet_char() [L150] CALL assume_abort_if_not(var_1_21 >= -128) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_21 >= -128) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L151] CALL assume_abort_if_not(var_1_21 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_21 <= 127) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L152] CALL assume_abort_if_not(var_1_21 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_21 != 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_27=3/5, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L153] var_1_27 = __VERIFIER_nondet_float() [L154] CALL assume_abort_if_not((var_1_27 >= -115292.1504606845700e+13F && var_1_27 <= -1.0e-20F) || (var_1_27 <= 1152921.504606845700e+12F && var_1_27 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not((var_1_27 >= -115292.1504606845700e+13F && var_1_27 <= -1.0e-20F) || (var_1_27 <= 1152921.504606845700e+12F && var_1_27 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_28=636/5, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L155] var_1_28 = __VERIFIER_nondet_float() [L156] CALL assume_abort_if_not((var_1_28 >= -115292.1504606845700e+13F && var_1_28 <= -1.0e-20F) || (var_1_28 <= 1152921.504606845700e+12F && var_1_28 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not((var_1_28 >= -115292.1504606845700e+13F && var_1_28 <= -1.0e-20F) || (var_1_28 <= 1152921.504606845700e+12F && var_1_28 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_29=6409/50, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L157] var_1_29 = __VERIFIER_nondet_float() [L158] CALL assume_abort_if_not((var_1_29 >= 0.0F && var_1_29 <= -1.0e-20F) || (var_1_29 <= 9223372.036854765600e+12F && var_1_29 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not((var_1_29 >= 0.0F && var_1_29 <= -1.0e-20F) || (var_1_29 <= 9223372.036854765600e+12F && var_1_29 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_30=159/5, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L159] var_1_30 = __VERIFIER_nondet_float() [L160] CALL assume_abort_if_not((var_1_30 >= 0.0F && var_1_30 <= -1.0e-20F) || (var_1_30 <= 9223372.036854765600e+12F && var_1_30 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not((var_1_30 >= 0.0F && var_1_30 <= -1.0e-20F) || (var_1_30 <= 9223372.036854765600e+12F && var_1_30 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=5, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L161] var_1_33 = __VERIFIER_nondet_uchar() [L162] CALL assume_abort_if_not(var_1_33 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_33 >= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L163] CALL assume_abort_if_not(var_1_33 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_33 <= 64) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_34=2, var_1_35=128, var_1_8=0, var_1_9=1] [L164] var_1_34 = __VERIFIER_nondet_uchar() [L165] CALL assume_abort_if_not(var_1_34 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_34 >= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_35=128, var_1_8=0, var_1_9=1] [L166] CALL assume_abort_if_not(var_1_34 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_34=63, var_1_35=128, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_34 <= 63) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_34=63, var_1_35=128, var_1_8=0, var_1_9=1] [L167] var_1_35 = __VERIFIER_nondet_uchar() [L168] CALL assume_abort_if_not(var_1_35 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_34=63, var_1_35=254, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_35 >= 127) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_34=63, var_1_35=254, var_1_8=0, var_1_9=1] [L169] CALL assume_abort_if_not(var_1_35 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_34=63, var_1_35=254, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_35 <= 254) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=1000, var_1_11=127, var_1_12=32766, var_1_14=0, var_1_16=73/10, var_1_18=7/2, var_1_1=1, var_1_20=29/5, var_1_21=-47, var_1_22=1, var_1_23=-128, var_1_24=128, var_1_26=125/4, var_1_31=25, var_1_33=0, var_1_34=63, var_1_35=254, var_1_8=0, var_1_9=1] [L186] RET updateVariables() [L187] CALL step() [L54] COND TRUE (-16 * last_1_var_1_23) > (((((last_1_var_1_23) < (last_1_var_1_23)) ? (last_1_var_1_23) : (last_1_var_1_23))) / var_1_11) [L55] var_1_10 = ((((last_1_var_1_14) < (last_1_var_1_23)) ? (last_1_var_1_14) : (last_1_var_1_23))) [L59] signed long int stepLocal_8 = last_1_var_1_14; [L60] unsigned char stepLocal_7 = last_1_var_1_14 <= (last_1_var_1_14 * var_1_12); [L61] COND TRUE stepLocal_7 && last_1_var_1_1 [L62] COND FALSE !(last_1_var_1_31 <= stepLocal_8) [L69] var_1_31 = var_1_33 [L74] var_1_14 = (-2 + (last_1_var_1_31 + last_1_var_1_31)) [L75] unsigned char stepLocal_1 = var_1_31; [L76] COND TRUE stepLocal_1 == (-128 * var_1_31) [L77] var_1_16 = (((((0.875 + (var_1_17 + 64.4))) > (1.0000000000000005E15)) ? ((0.875 + (var_1_17 + 64.4))) : (1.0000000000000005E15))) [L81] COND FALSE !(\read(var_1_8)) [L84] var_1_26 = ((((var_1_17) < ((var_1_29 - var_1_30))) ? (var_1_17) : ((var_1_29 - var_1_30)))) [L86] signed short int stepLocal_6 = var_1_10; [L87] COND FALSE !(stepLocal_6 >= ((((var_1_11) < ((var_1_31 * var_1_14))) ? (var_1_11) : ((var_1_31 * var_1_14))))) [L90] var_1_24 = var_1_31 [L92] signed long int stepLocal_5 = 25 * var_1_14; [L93] COND TRUE ! (var_1_31 <= var_1_10) [L94] COND FALSE !(var_1_10 >= stepLocal_5) [L97] var_1_23 = ((var_1_10 + var_1_14) + var_1_24) [L100] unsigned char stepLocal_0 = ((((var_1_24) < (var_1_14)) ? (var_1_24) : (var_1_14))) > var_1_31; [L101] EXPR var_1_31 | var_1_24 [L101] COND TRUE ((var_1_31 | var_1_24) <= var_1_31) || stepLocal_0 [L102] var_1_1 = ((! 1) && var_1_8) [L106] unsigned char stepLocal_2 = var_1_31; [L107] COND TRUE ((var_1_24 + -16) * var_1_23) >= stepLocal_2 [L108] var_1_18 = (64.9f + var_1_19) [L112] signed long int stepLocal_3 = var_1_14 % var_1_21; [L113] EXPR var_1_31 & var_1_24 [L113] COND TRUE stepLocal_3 >= (var_1_31 & var_1_24) [L114] var_1_20 = ((((((((63.5f + var_1_17) < 0 ) ? -(63.5f + var_1_17) : (63.5f + var_1_17)))) < (var_1_19)) ? (((((63.5f + var_1_17) < 0 ) ? -(63.5f + var_1_17) : (63.5f + var_1_17)))) : (var_1_19))) [L118] unsigned long int stepLocal_4 = ~ (var_1_31 * 128u); [L119] COND FALSE !(! (var_1_10 <= var_1_23)) [L128] var_1_22 = var_1_9 [L187] RET step() [L188] CALL, EXPR property() [L178] EXPR var_1_31 | var_1_24 [L178] EXPR ((((((((var_1_31 | var_1_24) <= var_1_31) || (((((var_1_24) < (var_1_14)) ? (var_1_24) : (var_1_14))) > var_1_31)) ? (var_1_1 == ((unsigned char) ((! 1) && var_1_8))) : (var_1_1 == ((unsigned char) var_1_9))) && (((-16 * last_1_var_1_23) > (((((last_1_var_1_23) < (last_1_var_1_23)) ? (last_1_var_1_23) : (last_1_var_1_23))) / var_1_11)) ? (var_1_10 == ((signed short int) ((((last_1_var_1_14) < (last_1_var_1_23)) ? (last_1_var_1_14) : (last_1_var_1_23))))) : (var_1_10 == ((signed short int) (last_1_var_1_31 - last_1_var_1_31))))) && (var_1_14 == ((signed short int) (-2 + (last_1_var_1_31 + last_1_var_1_31))))) && ((var_1_31 == (-128 * var_1_31)) ? (var_1_16 == ((double) (((((0.875 + (var_1_17 + 64.4))) > (1.0000000000000005E15)) ? ((0.875 + (var_1_17 + 64.4))) : (1.0000000000000005E15))))) : (var_1_16 == ((double) var_1_17)))) && ((((var_1_24 + -16) * var_1_23) >= var_1_31) ? (var_1_18 == ((float) (64.9f + var_1_19))) : (var_1_18 == ((float) var_1_17)))) && (((var_1_14 % var_1_21) >= (var_1_31 & var_1_24)) ? (var_1_20 == ((float) ((((((((63.5f + var_1_17) < 0 ) ? -(63.5f + var_1_17) : (63.5f + var_1_17)))) < (var_1_19)) ? (((((63.5f + var_1_17) < 0 ) ? -(63.5f + var_1_17) : (63.5f + var_1_17)))) : (var_1_19))))) : (var_1_20 == ((float) var_1_19))) [L178-L179] return (((((((((((((var_1_31 | var_1_24) <= var_1_31) || (((((var_1_24) < (var_1_14)) ? (var_1_24) : (var_1_14))) > var_1_31)) ? (var_1_1 == ((unsigned char) ((! 1) && var_1_8))) : (var_1_1 == ((unsigned char) var_1_9))) && (((-16 * last_1_var_1_23) > (((((last_1_var_1_23) < (last_1_var_1_23)) ? (last_1_var_1_23) : (last_1_var_1_23))) / var_1_11)) ? (var_1_10 == ((signed short int) ((((last_1_var_1_14) < (last_1_var_1_23)) ? (last_1_var_1_14) : (last_1_var_1_23))))) : (var_1_10 == ((signed short int) (last_1_var_1_31 - last_1_var_1_31))))) && (var_1_14 == ((signed short int) (-2 + (last_1_var_1_31 + last_1_var_1_31))))) && ((var_1_31 == (-128 * var_1_31)) ? (var_1_16 == ((double) (((((0.875 + (var_1_17 + 64.4))) > (1.0000000000000005E15)) ? ((0.875 + (var_1_17 + 64.4))) : (1.0000000000000005E15))))) : (var_1_16 == ((double) var_1_17)))) && ((((var_1_24 + -16) * var_1_23) >= var_1_31) ? (var_1_18 == ((float) (64.9f + var_1_19))) : (var_1_18 == ((float) var_1_17)))) && (((var_1_14 % var_1_21) >= (var_1_31 & var_1_24)) ? (var_1_20 == ((float) ((((((((63.5f + var_1_17) < 0 ) ? -(63.5f + var_1_17) : (63.5f + var_1_17)))) < (var_1_19)) ? (((((63.5f + var_1_17) < 0 ) ? -(63.5f + var_1_17) : (63.5f + var_1_17)))) : (var_1_19))))) : (var_1_20 == ((float) var_1_19)))) && ((! (var_1_10 <= var_1_23)) ? (var_1_1 ? (((~ (var_1_31 * 128u)) == var_1_23) ? (var_1_22 == ((unsigned char) (! var_1_9))) : 1) : (var_1_22 == ((unsigned char) var_1_9))) : (var_1_22 == ((unsigned char) var_1_9)))) && ((! (var_1_31 <= var_1_10)) ? ((var_1_10 >= (25 * var_1_14)) ? (var_1_23 == ((signed long int) ((((var_1_24) < (var_1_10)) ? (var_1_24) : (var_1_10))))) : (var_1_23 == ((signed long int) ((var_1_10 + var_1_14) + var_1_24)))) : 1)) && ((var_1_10 >= ((((var_1_11) < ((var_1_31 * var_1_14))) ? (var_1_11) : ((var_1_31 * var_1_14))))) ? (var_1_24 == ((unsigned short int) ((((var_1_31) < (var_1_31)) ? (var_1_31) : (var_1_31))))) : (var_1_24 == ((unsigned short int) var_1_31)))) && (var_1_8 ? (var_1_26 == ((float) (var_1_19 + ((var_1_27 + var_1_28) + var_1_17)))) : (var_1_26 == ((float) ((((var_1_17) < ((var_1_29 - var_1_30))) ? (var_1_17) : ((var_1_29 - var_1_30)))))))) && (((last_1_var_1_14 <= (last_1_var_1_14 * var_1_12)) && last_1_var_1_1) ? ((last_1_var_1_31 <= last_1_var_1_14) ? (((- var_1_19) >= var_1_17) ? (var_1_31 == ((unsigned char) (128 - ((((100) < ((var_1_33 + var_1_34))) ? (100) : ((var_1_33 + var_1_34))))))) : (var_1_31 == ((unsigned char) (var_1_35 - 5)))) : (var_1_31 == ((unsigned char) var_1_33))) : (var_1_31 == ((unsigned char) var_1_33))) ; [L188] RET, EXPR property() [L188] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=-128, var_1_11=127, var_1_12=32766, var_1_14=48, var_1_16=3, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=4, var_1_21=-47, var_1_22=1, var_1_23=-80, var_1_24=0, var_1_26=2, var_1_31=0, var_1_33=0, var_1_34=63, var_1_35=254, var_1_8=0, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=0, last_1_var_1_1=1, last_1_var_1_23=-128, last_1_var_1_31=25, var_1_10=-128, var_1_11=127, var_1_12=32766, var_1_14=48, var_1_16=3, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=4, var_1_21=-47, var_1_22=1, var_1_23=-80, var_1_24=0, var_1_26=2, var_1_31=0, var_1_33=0, var_1_34=63, var_1_35=254, var_1_8=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 18:58:06,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh --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 3980aec6b620dedacc05e58a868efa4198422dba376226818fb2c2d10e4fc0b3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:58:08,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:58:08,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 18:58:08,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:58:08,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:58:08,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:58:08,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:58:08,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:58:08,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:58:08,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:58:08,938 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:58:08,938 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:58:08,939 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:58:08,940 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:58:08,940 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:58:08,941 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:58:08,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:58:08,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:58:08,943 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:58:08,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:58:08,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:58:08,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:58:08,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:58:08,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:58:08,948 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:58:08,948 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:58:08,949 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:58:08,949 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:58:08,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:58:08,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:58:08,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:58:08,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:58:08,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:58:08,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:58:08,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:58:08,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:58:08,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:58:08,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:58:08,952 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:58:08,952 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:58:08,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:58:08,953 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:58:08,953 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:58:08,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:58:08,954 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_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3980aec6b620dedacc05e58a868efa4198422dba376226818fb2c2d10e4fc0b3 [2023-12-02 18:58:09,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:58:09,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:58:09,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:58:09,274 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:58:09,275 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:58:09,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i [2023-12-02 18:58:12,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:58:12,380 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:58:12,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i [2023-12-02 18:58:12,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/data/5939eae42/d922d5b33c934817829296429a0bafd3/FLAGc0203d225 [2023-12-02 18:58:12,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/data/5939eae42/d922d5b33c934817829296429a0bafd3 [2023-12-02 18:58:12,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:58:12,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:58:12,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:58:12,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:58:12,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:58:12,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cca64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12, skipping insertion in model container [2023-12-02 18:58:12,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,464 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:58:12,631 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_637bce95-7c99-4d5c-b537-1289e0260185/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i[916,929] [2023-12-02 18:58:12,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:58:12,736 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:58:12,749 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_637bce95-7c99-4d5c-b537-1289e0260185/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-17.i[916,929] [2023-12-02 18:58:12,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:58:12,829 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:58:12,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12 WrapperNode [2023-12-02 18:58:12,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:58:12,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:58:12,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:58:12,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:58:12,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,911 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 181 [2023-12-02 18:58:12,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:58:12,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:58:12,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:58:12,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:58:12,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:58:12,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:58:12,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:58:12,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:58:12,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (1/1) ... [2023-12-02 18:58:12,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:58:12,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:58:13,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:58:13,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:58:13,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:58:13,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:58:13,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:58:13,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:58:13,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:58:13,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:58:13,141 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:58:13,144 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:58:22,194 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:58:22,256 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:58:22,256 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:58:22,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:58:22 BoogieIcfgContainer [2023-12-02 18:58:22,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:58:22,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:58:22,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:58:22,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:58:22,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:58:12" (1/3) ... [2023-12-02 18:58:22,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a226c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:58:22, skipping insertion in model container [2023-12-02 18:58:22,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:58:12" (2/3) ... [2023-12-02 18:58:22,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a226c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:58:22, skipping insertion in model container [2023-12-02 18:58:22,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:58:22" (3/3) ... [2023-12-02 18:58:22,266 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-17.i [2023-12-02 18:58:22,282 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:58:22,282 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:58:22,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:58:22,329 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;@6df11418, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:58:22,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:58:22,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 47 states have (on average 1.425531914893617) internal successors, (67), 48 states have internal predecessors, (67), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 18:58:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-02 18:58:22,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:58:22,360 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:58:22,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:58:22,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:58:22,366 INFO L85 PathProgramCache]: Analyzing trace with hash 959507595, now seen corresponding path program 1 times [2023-12-02 18:58:22,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:58:22,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530984882] [2023-12-02 18:58:22,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:58:22,380 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 [2023-12-02 18:58:22,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:58:22,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:58:22,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:58:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:58:23,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:58:23,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:58:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2023-12-02 18:58:23,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:58:23,510 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:58:23,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530984882] [2023-12-02 18:58:23,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530984882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:58:23,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:58:23,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:58:23,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630860527] [2023-12-02 18:58:23,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:58:23,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:58:23,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:58:23,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:58:23,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:58:23,555 INFO L87 Difference]: Start difference. First operand has 74 states, 47 states have (on average 1.425531914893617) internal successors, (67), 48 states have internal predecessors, (67), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 18:58:25,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:58:25,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:58:25,980 INFO L93 Difference]: Finished difference Result 145 states and 252 transitions. [2023-12-02 18:58:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:58:26,076 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 157 [2023-12-02 18:58:26,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:58:26,087 INFO L225 Difference]: With dead ends: 145 [2023-12-02 18:58:26,087 INFO L226 Difference]: Without dead ends: 72 [2023-12-02 18:58:26,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:58:26,094 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:58:26,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2023-12-02 18:58:26,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-02 18:58:26,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-12-02 18:58:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 46 states have internal predecessors, (62), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 18:58:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 110 transitions. [2023-12-02 18:58:26,143 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 110 transitions. Word has length 157 [2023-12-02 18:58:26,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:58:26,144 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 110 transitions. [2023-12-02 18:58:26,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 18:58:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 110 transitions. [2023-12-02 18:58:26,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-02 18:58:26,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:58:26,150 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:58:26,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:58:26,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:58:26,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:58:26,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:58:26,352 INFO L85 PathProgramCache]: Analyzing trace with hash 153026239, now seen corresponding path program 1 times [2023-12-02 18:58:26,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:58:26,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683490133] [2023-12-02 18:58:26,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:58:26,354 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 [2023-12-02 18:58:26,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:58:26,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:58:26,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:58:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:58:27,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 18:58:27,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:58:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-02 18:58:30,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:58:30,430 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:58:30,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683490133] [2023-12-02 18:58:30,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683490133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:58:30,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:58:30,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:58:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851705074] [2023-12-02 18:58:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:58:30,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:58:30,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:58:30,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:58:30,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:58:30,435 INFO L87 Difference]: Start difference. First operand 72 states and 110 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-12-02 18:58:33,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:58:35,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:58:37,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:58:40,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:58:42,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:58:44,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:58:46,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:58:46,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:58:46,071 INFO L93 Difference]: Finished difference Result 215 states and 329 transitions. [2023-12-02 18:58:46,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:58:46,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 157 [2023-12-02 18:58:46,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:58:46,165 INFO L225 Difference]: With dead ends: 215 [2023-12-02 18:58:46,166 INFO L226 Difference]: Without dead ends: 144 [2023-12-02 18:58:46,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:58:46,168 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 101 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 49 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:58:46,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 357 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 77 Invalid, 7 Unknown, 0 Unchecked, 15.4s Time] [2023-12-02 18:58:46,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-02 18:58:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 118. [2023-12-02 18:58:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 67 states have internal predecessors, (84), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-02 18:58:46,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 180 transitions. [2023-12-02 18:58:46,208 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 180 transitions. Word has length 157 [2023-12-02 18:58:46,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:58:46,209 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 180 transitions. [2023-12-02 18:58:46,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-12-02 18:58:46,210 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 180 transitions. [2023-12-02 18:58:46,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-02 18:58:46,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:58:46,214 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:58:46,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 18:58:46,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:58:46,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:58:46,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:58:46,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1020055446, now seen corresponding path program 1 times [2023-12-02 18:58:46,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:58:46,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23350716] [2023-12-02 18:58:46,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:58:46,417 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 [2023-12-02 18:58:46,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:58:46,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:58:46,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:58:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:58:47,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:58:47,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:58:48,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 113 proven. 66 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2023-12-02 18:58:48,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:58:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 3 proven. 66 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-12-02 18:58:49,328 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:58:49,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23350716] [2023-12-02 18:58:49,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23350716] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:58:49,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1164937923] [2023-12-02 18:58:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:58:49,329 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:58:49,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:58:49,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:58:49,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 18:58:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:58:51,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:58:51,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:58:53,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-02 18:58:53,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:58:53,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1164937923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:58:53,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 18:58:53,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2023-12-02 18:58:53,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698519053] [2023-12-02 18:58:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:58:53,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:58:53,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:58:53,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:58:53,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:58:53,111 INFO L87 Difference]: Start difference. First operand 118 states and 180 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-12-02 18:58:56,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:58:58,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:00,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:02,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:02,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:59:02,419 INFO L93 Difference]: Finished difference Result 274 states and 420 transitions. [2023-12-02 18:59:02,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 18:59:02,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 158 [2023-12-02 18:59:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:59:02,425 INFO L225 Difference]: With dead ends: 274 [2023-12-02 18:59:02,425 INFO L226 Difference]: Without dead ends: 203 [2023-12-02 18:59:02,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 463 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:59:02,429 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 118 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:59:02,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 236 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 4 Unknown, 0 Unchecked, 9.3s Time] [2023-12-02 18:59:02,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-02 18:59:02,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2023-12-02 18:59:02,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 110 states have internal predecessors, (141), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 18:59:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 285 transitions. [2023-12-02 18:59:02,483 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 285 transitions. Word has length 158 [2023-12-02 18:59:02,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:59:02,484 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 285 transitions. [2023-12-02 18:59:02,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-12-02 18:59:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 285 transitions. [2023-12-02 18:59:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 18:59:02,487 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:59:02,488 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:59:02,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 18:59:02,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 18:59:02,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 18:59:02,893 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:59:02,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:59:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash 538528604, now seen corresponding path program 1 times [2023-12-02 18:59:02,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:59:02,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315461701] [2023-12-02 18:59:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:59:02,894 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 [2023-12-02 18:59:02,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:59:02,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:59:02,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 18:59:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:59:03,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:59:03,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:59:05,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 113 proven. 66 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2023-12-02 18:59:05,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:59:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 3 proven. 66 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-12-02 18:59:05,708 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:59:05,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315461701] [2023-12-02 18:59:05,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315461701] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:59:05,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [765553440] [2023-12-02 18:59:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:59:05,709 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:59:05,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:59:05,711 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:59:05,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 18:59:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:59:07,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 18:59:07,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:59:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-02 18:59:09,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:59:09,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [765553440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:59:09,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 18:59:09,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 5] total 13 [2023-12-02 18:59:09,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92770448] [2023-12-02 18:59:09,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:59:09,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 18:59:09,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:59:09,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 18:59:09,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-02 18:59:09,833 INFO L87 Difference]: Start difference. First operand 186 states and 285 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-12-02 18:59:12,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:18,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:20,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:22,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:24,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:26,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:28,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:30,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:32,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:34,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:36,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:38,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:40,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:42,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:44,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:46,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:48,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:52,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:55,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:57,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:59,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:00:01,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:03,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:05,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:07,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:07,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:07,151 INFO L93 Difference]: Finished difference Result 427 states and 653 transitions. [2023-12-02 19:00:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 19:00:07,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 159 [2023-12-02 19:00:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:07,261 INFO L225 Difference]: With dead ends: 427 [2023-12-02 19:00:07,261 INFO L226 Difference]: Without dead ends: 356 [2023-12-02 19:00:07,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 462 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2023-12-02 19:00:07,264 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 280 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 49 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:07,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 609 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 484 Invalid, 23 Unknown, 0 Unchecked, 56.6s Time] [2023-12-02 19:00:07,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-12-02 19:00:07,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 196. [2023-12-02 19:00:07,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 120 states have internal predecessors, (157), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 19:00:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 301 transitions. [2023-12-02 19:00:07,322 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 301 transitions. Word has length 159 [2023-12-02 19:00:07,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:07,324 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 301 transitions. [2023-12-02 19:00:07,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-12-02 19:00:07,324 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 301 transitions. [2023-12-02 19:00:07,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 19:00:07,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:07,326 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:00:07,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 19:00:07,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 19:00:07,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:00:07,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:00:07,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash 796694042, now seen corresponding path program 1 times [2023-12-02 19:00:07,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:00:07,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657536509] [2023-12-02 19:00:07,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:07,728 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 [2023-12-02 19:00:07,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:00:07,729 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 19:00:07,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 19:00:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:08,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:00:08,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:00:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 113 proven. 66 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2023-12-02 19:00:09,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:00:10,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 3 proven. 66 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-12-02 19:00:10,636 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:00:10,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657536509] [2023-12-02 19:00:10,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657536509] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:00:10,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1558822633] [2023-12-02 19:00:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:10,637 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 19:00:10,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 19:00:10,638 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 19:00:10,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 19:00:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:13,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 19:00:13,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:00:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 113 proven. 66 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2023-12-02 19:00:14,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:00:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 3 proven. 66 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-12-02 19:00:15,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1558822633] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:00:15,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211048737] [2023-12-02 19:00:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:15,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:00:15,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:00:15,387 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:00:15,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 19:00:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:16,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:00:16,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:00:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 113 proven. 66 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2023-12-02 19:00:17,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:00:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 3 proven. 66 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-12-02 19:00:17,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211048737] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:00:17,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 19:00:17,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 7 [2023-12-02 19:00:17,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831982487] [2023-12-02 19:00:17,875 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 19:00:17,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 19:00:17,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:00:17,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 19:00:17,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:00:17,878 INFO L87 Difference]: Start difference. First operand 196 states and 301 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-02 19:00:21,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:23,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:25,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:26,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:26,008 INFO L93 Difference]: Finished difference Result 364 states and 543 transitions. [2023-12-02 19:00:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 19:00:26,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 159 [2023-12-02 19:00:26,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:26,113 INFO L225 Difference]: With dead ends: 364 [2023-12-02 19:00:26,114 INFO L226 Difference]: Without dead ends: 220 [2023-12-02 19:00:26,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 952 GetRequests, 940 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-02 19:00:26,115 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 112 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:26,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 190 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 133 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2023-12-02 19:00:26,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-02 19:00:26,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 208. [2023-12-02 19:00:26,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 129 states have (on average 1.2635658914728682) internal successors, (163), 129 states have internal predecessors, (163), 72 states have call successors, (72), 6 states have call predecessors, (72), 6 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 19:00:26,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 307 transitions. [2023-12-02 19:00:26,151 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 307 transitions. Word has length 159 [2023-12-02 19:00:26,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:26,152 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 307 transitions. [2023-12-02 19:00:26,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-02 19:00:26,153 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 307 transitions. [2023-12-02 19:00:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 19:00:26,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:26,156 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:00:26,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 19:00:26,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-02 19:00:26,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 19:00:26,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:00:26,761 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:00:26,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:26,762 INFO L85 PathProgramCache]: Analyzing trace with hash -791653860, now seen corresponding path program 1 times [2023-12-02 19:00:26,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:00:26,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510657310] [2023-12-02 19:00:26,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:26,762 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 [2023-12-02 19:00:26,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:00:26,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 19:00:26,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637bce95-7c99-4d5c-b537-1289e0260185/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 19:00:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:28,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-02 19:00:28,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:02:20,872 WARN L293 SmtUtils]: Spent 18.14s on a formula simplification that was a NOOP. DAG size: 88 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:04:28,488 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (.cse4 (fp.neg .cse3))) (and (fp.leq c_~var_1_29~0 .cse0) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_29~0 c_~var_1_30~0)))) (let ((.cse2 (fp.lt c_~var_1_17~0 .cse1))) (or (and (= c_~var_1_26~0 ((_ to_fp 8 24) c_currentRoundingMode .cse1)) (not .cse2)) (and (= c_~var_1_26~0 ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_17~0)) .cse2)))) (fp.geq c_~var_1_30~0 .cse3) (= (_ bv0 16) (bvadd c_~var_1_10~0 (_ bv128 16))) (= (_ bv1 8) c_~last_1_var_1_1~0) (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (or (and (fp.leq c_~var_1_19~0 .cse4) (fp.geq c_~var_1_19~0 (fp.neg .cse5))) (and (fp.geq c_~var_1_19~0 .cse3) (fp.leq c_~var_1_19~0 .cse5)))) (= (bvmul ((_ zero_extend 24) c_~var_1_31~0) (_ bv129 32)) (_ bv0 32)) (= (bvadd c_~last_1_var_1_23~0 (_ bv128 32)) (_ bv0 32)) (fp.geq c_~var_1_29~0 .cse3) (bvsle ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32)) (fp.leq c_~var_1_30~0 .cse0) (= (_ bv25 8) c_~last_1_var_1_31~0) (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (or (and (fp.leq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse6)) (fp.geq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse3))) (and (fp.leq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (fp.geq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse6)))))) (= (_ bv0 16) c_~last_1_var_1_14~0) (let ((.cse9 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 8.0)) (fp.add c_currentRoundingMode c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 322.0 5.0))))) (.cse8 ((_ to_fp 11 53) c_currentRoundingMode (/ 2000000000000001.0 2.0)))) (let ((.cse7 (fp.gt .cse9 .cse8))) (or (and (not .cse7) (= .cse8 c_~var_1_16~0)) (and .cse7 (= .cse9 c_~var_1_16~0))))) (= c_~var_1_31~0 c_~var_1_33~0) (= c_~var_1_14~0 (_ bv48 16)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-02 19:04:30,533 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (.cse4 (fp.neg .cse3))) (and (fp.leq c_~var_1_29~0 .cse0) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_29~0 c_~var_1_30~0)))) (let ((.cse2 (fp.lt c_~var_1_17~0 .cse1))) (or (and (= c_~var_1_26~0 ((_ to_fp 8 24) c_currentRoundingMode .cse1)) (not .cse2)) (and (= c_~var_1_26~0 ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_17~0)) .cse2)))) (fp.geq c_~var_1_30~0 .cse3) (= (_ bv0 16) (bvadd c_~var_1_10~0 (_ bv128 16))) (= (_ bv1 8) c_~last_1_var_1_1~0) (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (or (and (fp.leq c_~var_1_19~0 .cse4) (fp.geq c_~var_1_19~0 (fp.neg .cse5))) (and (fp.geq c_~var_1_19~0 .cse3) (fp.leq c_~var_1_19~0 .cse5)))) (= (bvmul ((_ zero_extend 24) c_~var_1_31~0) (_ bv129 32)) (_ bv0 32)) (= (bvadd c_~last_1_var_1_23~0 (_ bv128 32)) (_ bv0 32)) (fp.geq c_~var_1_29~0 .cse3) (bvsle ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32)) (fp.leq c_~var_1_30~0 .cse0) (= (_ bv25 8) c_~last_1_var_1_31~0) (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (or (and (fp.leq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse6)) (fp.geq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse3))) (and (fp.leq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (fp.geq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse6)))))) (= (_ bv0 16) c_~last_1_var_1_14~0) (let ((.cse9 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 8.0)) (fp.add c_currentRoundingMode c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 322.0 5.0))))) (.cse8 ((_ to_fp 11 53) c_currentRoundingMode (/ 2000000000000001.0 2.0)))) (let ((.cse7 (fp.gt .cse9 .cse8))) (or (and (not .cse7) (= .cse8 c_~var_1_16~0)) (and .cse7 (= .cse9 c_~var_1_16~0))))) (= c_~var_1_31~0 c_~var_1_33~0) (= c_~var_1_14~0 (_ bv48 16)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-02 19:08:48,649 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (let ((.cse6 ((_ zero_extend 24) c_~var_1_31~0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (.cse4 (fp.neg .cse3))) (and (fp.leq c_~var_1_29~0 .cse0) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_29~0 c_~var_1_30~0)))) (let ((.cse2 (fp.lt c_~var_1_17~0 .cse1))) (or (and (= c_~var_1_26~0 ((_ to_fp 8 24) c_currentRoundingMode .cse1)) (not .cse2)) (and (= c_~var_1_26~0 ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_17~0)) .cse2)))) (fp.geq c_~var_1_30~0 .cse3) (= (_ bv0 16) (bvadd c_~var_1_10~0 (_ bv128 16))) (= (_ bv1 8) c_~last_1_var_1_1~0) (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (or (and (fp.leq c_~var_1_19~0 .cse4) (fp.geq c_~var_1_19~0 (fp.neg .cse5))) (and (fp.geq c_~var_1_19~0 .cse3) (fp.leq c_~var_1_19~0 .cse5)))) (= c_~var_1_24~0 ((_ extract 15 0) .cse6)) (= (bvmul .cse6 (_ bv129 32)) (_ bv0 32)) (= (bvadd c_~last_1_var_1_23~0 (_ bv128 32)) (_ bv0 32)) (fp.geq c_~var_1_29~0 .cse3) (bvsle ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32)) (fp.leq c_~var_1_30~0 .cse0) (= (_ bv25 8) c_~last_1_var_1_31~0) (let ((.cse7 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (or (and (fp.leq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse7)) (fp.geq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse3))) (and (fp.leq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (fp.geq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse7)))))) (= (_ bv0 16) c_~last_1_var_1_14~0) (let ((.cse10 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 8.0)) (fp.add c_currentRoundingMode c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 322.0 5.0))))) (.cse9 ((_ to_fp 11 53) c_currentRoundingMode (/ 2000000000000001.0 2.0)))) (let ((.cse8 (fp.gt .cse10 .cse9))) (or (and (not .cse8) (= .cse9 c_~var_1_16~0)) (and .cse8 (= .cse10 c_~var_1_16~0))))) (= c_~var_1_31~0 c_~var_1_33~0) (= c_~var_1_14~0 (_ bv48 16)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-02 19:08:50,699 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (let ((.cse6 ((_ zero_extend 24) c_~var_1_31~0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (.cse4 (fp.neg .cse3))) (and (fp.leq c_~var_1_29~0 .cse0) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_29~0 c_~var_1_30~0)))) (let ((.cse2 (fp.lt c_~var_1_17~0 .cse1))) (or (and (= c_~var_1_26~0 ((_ to_fp 8 24) c_currentRoundingMode .cse1)) (not .cse2)) (and (= c_~var_1_26~0 ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_17~0)) .cse2)))) (fp.geq c_~var_1_30~0 .cse3) (= (_ bv0 16) (bvadd c_~var_1_10~0 (_ bv128 16))) (= (_ bv1 8) c_~last_1_var_1_1~0) (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (or (and (fp.leq c_~var_1_19~0 .cse4) (fp.geq c_~var_1_19~0 (fp.neg .cse5))) (and (fp.geq c_~var_1_19~0 .cse3) (fp.leq c_~var_1_19~0 .cse5)))) (= c_~var_1_24~0 ((_ extract 15 0) .cse6)) (= (bvmul .cse6 (_ bv129 32)) (_ bv0 32)) (= (bvadd c_~last_1_var_1_23~0 (_ bv128 32)) (_ bv0 32)) (fp.geq c_~var_1_29~0 .cse3) (bvsle ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32)) (fp.leq c_~var_1_30~0 .cse0) (= (_ bv25 8) c_~last_1_var_1_31~0) (let ((.cse7 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (or (and (fp.leq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse7)) (fp.geq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse3))) (and (fp.leq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (fp.geq c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse7)))))) (= (_ bv0 16) c_~last_1_var_1_14~0) (let ((.cse10 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 8.0)) (fp.add c_currentRoundingMode c_~var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 322.0 5.0))))) (.cse9 ((_ to_fp 11 53) c_currentRoundingMode (/ 2000000000000001.0 2.0)))) (let ((.cse8 (fp.gt .cse10 .cse9))) (or (and (not .cse8) (= .cse9 c_~var_1_16~0)) (and .cse8 (= .cse10 c_~var_1_16~0))))) (= c_~var_1_31~0 c_~var_1_33~0) (= c_~var_1_14~0 (_ bv48 16)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true