./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f3bccbd47f020014aaa87680c2199640dac67db437f4e10374d3a460fe0987cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:13:56,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:13:56,532 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:13:56,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:13:56,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:13:56,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:13:56,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:13:56,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:13:56,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:13:56,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:13:56,577 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:13:56,578 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:13:56,579 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:13:56,579 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:13:56,580 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:13:56,581 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:13:56,586 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:13:56,587 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:13:56,587 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:13:56,588 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:13:56,589 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:13:56,596 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:13:56,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:13:56,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:13:56,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:13:56,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:13:56,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:13:56,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:13:56,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:13:56,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:13:56,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:13:56,601 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:13:56,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:13:56,602 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:13:56,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:13:56,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:13:56,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:56,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:13:56,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:13:56,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:13:56,605 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:13:56,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:13:56,609 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:13:56,609 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:13:56,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:13:56,610 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_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3bccbd47f020014aaa87680c2199640dac67db437f4e10374d3a460fe0987cf [2023-11-19 05:13:56,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:13:56,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:13:56,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:13:56,993 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:13:56,993 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:13:56,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i [2023-11-19 05:14:00,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:14:00,915 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:14:00,918 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i [2023-11-19 05:14:00,932 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/data/09ac148d4/d0941f09487541b5ac7482ff80459234/FLAGb15740cd6 [2023-11-19 05:14:00,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/data/09ac148d4/d0941f09487541b5ac7482ff80459234 [2023-11-19 05:14:00,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:14:00,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:14:00,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:00,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:14:00,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:14:00,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:00" (1/1) ... [2023-11-19 05:14:00,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05ccf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:00, skipping insertion in model container [2023-11-19 05:14:00,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:00" (1/1) ... [2023-11-19 05:14:01,037 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:14:01,298 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_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i[913,926] [2023-11-19 05:14:01,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:01,443 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:14:01,466 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_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i[913,926] [2023-11-19 05:14:01,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:01,551 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:14:01,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01 WrapperNode [2023-11-19 05:14:01,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:01,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:01,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:14:01,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:14:01,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,641 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2023-11-19 05:14:01,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:01,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:14:01,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:14:01,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:14:01,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,693 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:14:01,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:14:01,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:14:01,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:14:01,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (1/1) ... [2023-11-19 05:14:01,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:01,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:01,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:14:01,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:14:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:14:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:14:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:14:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:14:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:14:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:14:01,924 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:14:01,927 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:14:02,307 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:14:02,476 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:14:02,476 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:14:02,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:02 BoogieIcfgContainer [2023-11-19 05:14:02,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:14:02,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:14:02,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:14:02,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:14:02,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:14:00" (1/3) ... [2023-11-19 05:14:02,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb5afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:02, skipping insertion in model container [2023-11-19 05:14:02,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:01" (2/3) ... [2023-11-19 05:14:02,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb5afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:02, skipping insertion in model container [2023-11-19 05:14:02,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:02" (3/3) ... [2023-11-19 05:14:02,495 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-14.i [2023-11-19 05:14:02,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:14:02,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:14:02,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:14:02,599 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;@7c6925e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:14:02,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:14:02,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 05:14:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 05:14:02,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:02,621 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:02,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:02,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:02,629 INFO L85 PathProgramCache]: Analyzing trace with hash -192200642, now seen corresponding path program 1 times [2023-11-19 05:14:02,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:02,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335951078] [2023-11-19 05:14:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:02,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:14:03,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:14:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:14:03,797 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:14:03,801 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:14:03,803 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:14:03,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:14:03,816 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:14:03,831 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:14:03,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:14:03 BoogieIcfgContainer [2023-11-19 05:14:03,947 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:14:03,948 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:14:03,948 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:14:03,949 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:14:03,949 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:02" (3/4) ... [2023-11-19 05:14:03,952 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:14:03,953 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:14:03,954 INFO L158 Benchmark]: Toolchain (without parser) took 2989.60ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 71.4MB in the beginning and 113.5MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:14:03,955 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 106.2MB in the beginning and 106.1MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:14:03,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 585.32ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 71.2MB in the beginning and 142.7MB in the end (delta: -71.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2023-11-19 05:14:03,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.95ms. Allocated memory is still 176.2MB. Free memory was 142.7MB in the beginning and 139.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:14:03,958 INFO L158 Benchmark]: Boogie Preprocessor took 89.35ms. Allocated memory is still 176.2MB. Free memory was 139.8MB in the beginning and 137.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:14:03,959 INFO L158 Benchmark]: RCFGBuilder took 749.66ms. Allocated memory is still 176.2MB. Free memory was 137.7MB in the beginning and 107.5MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 05:14:03,959 INFO L158 Benchmark]: TraceAbstraction took 1461.11ms. Allocated memory is still 176.2MB. Free memory was 107.0MB in the beginning and 114.6MB in the end (delta: -7.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-19 05:14:03,960 INFO L158 Benchmark]: Witness Printer took 5.24ms. Allocated memory is still 176.2MB. Free memory was 114.6MB in the beginning and 113.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:14:03,965 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 106.2MB in the beginning and 106.1MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 585.32ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 71.2MB in the beginning and 142.7MB in the end (delta: -71.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.95ms. Allocated memory is still 176.2MB. Free memory was 142.7MB in the beginning and 139.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.35ms. Allocated memory is still 176.2MB. Free memory was 139.8MB in the beginning and 137.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 749.66ms. Allocated memory is still 176.2MB. Free memory was 137.7MB in the beginning and 107.5MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1461.11ms. Allocated memory is still 176.2MB. Free memory was 107.0MB in the beginning and 114.6MB in the end (delta: -7.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.24ms. Allocated memory is still 176.2MB. Free memory was 114.6MB in the beginning and 113.5MB in the end (delta: 1.0MB). 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 someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 1000000; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 1; [L25] signed short int var_1_5 = -64; [L26] signed short int var_1_6 = -64; [L27] signed short int var_1_7 = 10; [L28] signed short int var_1_8 = 8; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 1; [L31] unsigned char var_1_11 = 0; [L32] unsigned short int var_1_12 = 2; [L33] float var_1_13 = 32.25; [L34] float var_1_14 = 15.5; [L35] float var_1_15 = 256.25; [L36] double var_1_16 = 8.6; [L37] unsigned short int var_1_17 = 57581; [L38] unsigned char last_1_var_1_9 = 0; [L109] isInitial = 1 [L110] FCALL initially() [L111] COND TRUE 1 [L112] CALL updateLastVariables() [L102] last_1_var_1_9 = var_1_9 [L112] RET updateLastVariables() [L113] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_3=1, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_3=1, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=1, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=1, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L70] var_1_3 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L72] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L73] var_1_6 = __VERIFIER_nondet_short() [L74] CALL assume_abort_if_not(var_1_6 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= -32767) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=10, var_1_8=8, var_1_9=0] [L75] CALL assume_abort_if_not(var_1_6 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 32766) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=10, var_1_8=8, var_1_9=0] [L76] var_1_7 = __VERIFIER_nondet_short() [L77] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=8, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=8, var_1_9=0] [L79] var_1_8 = __VERIFIER_nondet_short() [L80] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L81] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L82] var_1_10 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L84] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L85] var_1_11 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L87] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L88] var_1_13 = __VERIFIER_nondet_float() [L89] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L90] var_1_14 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L92] CALL assume_abort_if_not(var_1_14 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_14 != 0.0F) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L93] var_1_15 = __VERIFIER_nondet_float() [L94] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L95] var_1_16 = __VERIFIER_nondet_double() [L96] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854776000e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854776000e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L97] var_1_17 = __VERIFIER_nondet_ushort() [L98] CALL assume_abort_if_not(var_1_17 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_17 >= 32767) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L99] CALL assume_abort_if_not(var_1_17 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_17 <= 65534) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L113] RET updateVariables() [L114] CALL step() [L42] COND FALSE !(\read(last_1_var_1_9)) [L45] var_1_5 = ((var_1_7 + 16) - var_1_8) [L47] COND TRUE (var_1_13 / var_1_14) <= var_1_15 [L48] COND FALSE !((var_1_16 - 2.3) > var_1_14) [L51] var_1_12 = ((((var_1_7) > (((((var_1_17 - var_1_8) < 0 ) ? -(var_1_17 - var_1_8) : (var_1_17 - var_1_8))))) ? (var_1_7) : (((((var_1_17 - var_1_8) < 0 ) ? -(var_1_17 - var_1_8) : (var_1_17 - var_1_8)))))) [L56] COND FALSE !(((var_1_5 >= var_1_12) && var_1_2) && var_1_3) [L59] var_1_9 = (! (var_1_11 || var_1_10)) [L61] unsigned char stepLocal_0 = var_1_9; [L62] COND FALSE !(stepLocal_0 && var_1_9) [L114] RET step() [L115] CALL, EXPR property() [L105-L106] return ((((var_1_9 && var_1_9) ? (var_1_1 == ((signed long int) var_1_5)) : 1) && (last_1_var_1_9 ? (var_1_5 == ((signed short int) var_1_6)) : (var_1_5 == ((signed short int) ((var_1_7 + 16) - var_1_8))))) && ((((var_1_5 >= var_1_12) && var_1_2) && var_1_3) ? (var_1_9 == ((unsigned char) (! var_1_10))) : (var_1_9 == ((unsigned char) (! (var_1_11 || var_1_10)))))) && (((var_1_13 / var_1_14) <= var_1_15) ? (((var_1_16 - 2.3) > var_1_14) ? (var_1_12 == ((unsigned short int) (var_1_17 - var_1_7))) : (var_1_12 == ((unsigned short int) ((((var_1_7) > (((((var_1_17 - var_1_8) < 0 ) ? -(var_1_17 - var_1_8) : (var_1_17 - var_1_8))))) ? (var_1_7) : (((((var_1_17 - var_1_8) < 0 ) ? -(var_1_17 - var_1_8) : (var_1_17 - var_1_8))))))))) : (var_1_12 == ((unsigned short int) var_1_8))) ; [L115] RET, EXPR property() [L115] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=16385, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=17, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=16385, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=17, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 21, 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=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:14:04,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/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_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f3bccbd47f020014aaa87680c2199640dac67db437f4e10374d3a460fe0987cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:14:07,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:14:07,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:14:07,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:14:07,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:14:07,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:14:07,392 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:14:07,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:14:07,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:14:07,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:14:07,397 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:14:07,398 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:14:07,398 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:14:07,399 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:14:07,399 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:14:07,400 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:14:07,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:14:07,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:14:07,402 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:14:07,403 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:14:07,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:14:07,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:14:07,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:14:07,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:14:07,405 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:14:07,406 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:14:07,406 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:14:07,408 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:14:07,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:14:07,410 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:14:07,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:14:07,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:14:07,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:14:07,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:07,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:14:07,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:14:07,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:14:07,414 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:14:07,414 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:07,415 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:14:07,416 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:14:07,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:14:07,417 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_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3bccbd47f020014aaa87680c2199640dac67db437f4e10374d3a460fe0987cf [2023-11-19 05:14:07,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:14:07,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:14:07,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:14:07,962 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:14:07,963 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:14:07,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i [2023-11-19 05:14:11,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:14:11,601 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:14:11,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i [2023-11-19 05:14:11,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/data/e9a247987/decc114f4ea34b7182c01bd8743a2d3b/FLAG0e75284e4 [2023-11-19 05:14:11,631 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/data/e9a247987/decc114f4ea34b7182c01bd8743a2d3b [2023-11-19 05:14:11,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:14:11,636 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:14:11,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:11,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:14:11,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:14:11,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:11" (1/1) ... [2023-11-19 05:14:11,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64aa6ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:11, skipping insertion in model container [2023-11-19 05:14:11,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:11" (1/1) ... [2023-11-19 05:14:11,678 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:14:11,906 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_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i[913,926] [2023-11-19 05:14:12,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:12,032 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:14:12,053 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_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i[913,926] [2023-11-19 05:14:12,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:12,138 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:14:12,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12 WrapperNode [2023-11-19 05:14:12,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:12,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:12,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:14:12,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:14:12,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,228 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2023-11-19 05:14:12,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:12,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:14:12,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:14:12,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:14:12,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:14:12,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:14:12,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:14:12,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:14:12,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (1/1) ... [2023-11-19 05:14:12,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:12,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:12,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:14:12,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:14:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:14:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:14:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:14:12,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:14:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:14:12,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:14:12,566 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:14:12,569 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:14:16,614 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:14:16,624 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:14:16,624 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:14:16,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:16 BoogieIcfgContainer [2023-11-19 05:14:16,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:14:16,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:14:16,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:14:16,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:14:16,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:14:11" (1/3) ... [2023-11-19 05:14:16,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bedeaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:16, skipping insertion in model container [2023-11-19 05:14:16,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:12" (2/3) ... [2023-11-19 05:14:16,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bedeaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:16, skipping insertion in model container [2023-11-19 05:14:16,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:16" (3/3) ... [2023-11-19 05:14:16,641 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-14.i [2023-11-19 05:14:16,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:14:16,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:14:16,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:14:16,725 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;@15d62b12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:14:16,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:14:16,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 05:14:16,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:14:16,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:16,751 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:16,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:16,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash 173013582, now seen corresponding path program 1 times [2023-11-19 05:14:16,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:16,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628696818] [2023-11-19 05:14:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:16,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:16,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:16,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:16,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:14:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:17,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:14:17,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-11-19 05:14:17,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:17,553 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628696818] [2023-11-19 05:14:17,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628696818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:17,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:17,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:14:17,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703722547] [2023-11-19 05:14:17,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:17,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:14:17,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:17,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:14:17,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:14:17,614 INFO L87 Difference]: Start difference. First operand has 58 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-19 05:14:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:17,654 INFO L93 Difference]: Finished difference Result 109 states and 187 transitions. [2023-11-19 05:14:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:14:17,657 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 131 [2023-11-19 05:14:17,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:17,667 INFO L225 Difference]: With dead ends: 109 [2023-11-19 05:14:17,667 INFO L226 Difference]: Without dead ends: 54 [2023-11-19 05:14:17,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:14:17,677 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:17,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:14:17,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-19 05:14:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-19 05:14:17,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 05:14:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2023-11-19 05:14:17,738 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 131 [2023-11-19 05:14:17,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:17,739 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2023-11-19 05:14:17,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-19 05:14:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2023-11-19 05:14:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:14:17,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:17,746 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:17,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:17,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:17,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:17,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:17,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1923071244, now seen corresponding path program 1 times [2023-11-19 05:14:17,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:17,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801221634] [2023-11-19 05:14:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:17,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:17,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:17,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:17,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:14:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:18,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:18,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-19 05:14:19,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:19,456 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:19,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801221634] [2023-11-19 05:14:19,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801221634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:19,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:19,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:14:19,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554715610] [2023-11-19 05:14:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:19,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:19,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:19,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:19,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:14:19,462 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-19 05:14:21,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:14:23,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:14:23,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:23,933 INFO L93 Difference]: Finished difference Result 160 states and 238 transitions. [2023-11-19 05:14:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:14:23,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2023-11-19 05:14:23,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:23,965 INFO L225 Difference]: With dead ends: 160 [2023-11-19 05:14:23,965 INFO L226 Difference]: Without dead ends: 109 [2023-11-19 05:14:23,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:14:23,969 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 46 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:23,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 221 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2023-11-19 05:14:23,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-19 05:14:24,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 94. [2023-11-19 05:14:24,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 49 states have internal predecessors, (55), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 05:14:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 139 transitions. [2023-11-19 05:14:24,014 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 139 transitions. Word has length 131 [2023-11-19 05:14:24,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:24,016 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 139 transitions. [2023-11-19 05:14:24,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-19 05:14:24,016 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 139 transitions. [2023-11-19 05:14:24,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:14:24,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:24,020 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:24,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:24,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:24,230 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:24,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:24,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1691837682, now seen corresponding path program 1 times [2023-11-19 05:14:24,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:24,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887157554] [2023-11-19 05:14:24,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:24,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:24,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:24,234 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:24,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 05:14:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:24,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:14:24,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-19 05:14:25,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-19 05:14:25,811 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:14:25,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887157554] [2023-11-19 05:14:25,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887157554] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:25,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [832044284] [2023-11-19 05:14:25,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:25,812 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:25,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:14:25,843 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:14:25,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 05:14:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:26,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 05:14:26,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 452 proven. 54 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2023-11-19 05:14:27,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-19 05:14:28,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [832044284] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:28,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444155260] [2023-11-19 05:14:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:28,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:28,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:28,426 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:28,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 05:14:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:28,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:14:28,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:29,612 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 452 proven. 54 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2023-11-19 05:14:29,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:14:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-19 05:14:30,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444155260] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:14:30,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:14:30,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 10, 7, 9, 6] total 12 [2023-11-19 05:14:30,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390333092] [2023-11-19 05:14:30,074 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:14:30,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:14:30,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:14:30,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:14:30,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:14:30,084 INFO L87 Difference]: Start difference. First operand 94 states and 139 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-19 05:14:33,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:14:34,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:34,265 INFO L93 Difference]: Finished difference Result 165 states and 231 transitions. [2023-11-19 05:14:34,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 05:14:34,304 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 131 [2023-11-19 05:14:34,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:34,308 INFO L225 Difference]: With dead ends: 165 [2023-11-19 05:14:34,308 INFO L226 Difference]: Without dead ends: 114 [2023-11-19 05:14:34,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 769 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2023-11-19 05:14:34,312 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 139 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 126 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:34,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 153 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 05:14:34,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-19 05:14:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2023-11-19 05:14:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 61 states have (on average 1.0819672131147542) internal successors, (66), 61 states have internal predecessors, (66), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 05:14:34,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 150 transitions. [2023-11-19 05:14:34,369 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 150 transitions. Word has length 131 [2023-11-19 05:14:34,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:34,371 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 150 transitions. [2023-11-19 05:14:34,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-19 05:14:34,375 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 150 transitions. [2023-11-19 05:14:34,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:14:34,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:34,381 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:34,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:34,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:34,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:34,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 05:14:34,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:14:34,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:34,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1689990640, now seen corresponding path program 1 times [2023-11-19 05:14:34,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:14:34,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481689839] [2023-11-19 05:14:34,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:34,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:14:34,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:14:34,999 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:14:35,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87a31c-9646-4a5e-acbe-44e5b9f827eb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 05:14:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:35,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 05:14:35,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:54,899 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)