./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65abe7cb35c9006c604c8d360a97fa1428e6f141c9dbba60a5491dff00208bf7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:19,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:20,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:29:20,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:20,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:20,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:20,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:20,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:20,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:20,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:20,126 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:20,127 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:20,127 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:20,129 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:29:20,129 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:20,130 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:20,130 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:29:20,131 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:29:20,131 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:20,132 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:29:20,133 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:29:20,133 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:29:20,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:20,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:20,136 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:29:20,136 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:29:20,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:29:20,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:20,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:20,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:20,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:20,140 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:29:20,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:20,140 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:20,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:20,141 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:20,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:20,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:20,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:20,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:20,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:20,143 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:29:20,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:29:20,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:20,145 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:20,145 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:20,145 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:20,146 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_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65abe7cb35c9006c604c8d360a97fa1428e6f141c9dbba60a5491dff00208bf7 [2023-11-23 21:29:20,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:20,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:20,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:20,439 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:20,439 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:20,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i [2023-11-23 21:29:23,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:23,774 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:23,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i [2023-11-23 21:29:23,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/data/5bc19afc1/584de92b49704cb88076311f29024bc7/FLAGbc3ab2664 [2023-11-23 21:29:23,799 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/data/5bc19afc1/584de92b49704cb88076311f29024bc7 [2023-11-23 21:29:23,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:23,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:23,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:23,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:23,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:23,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:23" (1/1) ... [2023-11-23 21:29:23,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9bdc8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:23, skipping insertion in model container [2023-11-23 21:29:23,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:23" (1/1) ... [2023-11-23 21:29:23,844 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:23,995 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_c32bcd70-7ec6-4b38-a169-2fac0c765a44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i[912,925] [2023-11-23 21:29:24,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:24,070 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:24,093 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_c32bcd70-7ec6-4b38-a169-2fac0c765a44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i[912,925] [2023-11-23 21:29:24,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:24,138 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:24,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24 WrapperNode [2023-11-23 21:29:24,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:24,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:24,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:24,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:24,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,193 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-11-23 21:29:24,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:24,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:24,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:24,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:24,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:24,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:24,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:24,247 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:24,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:24,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:24,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:24,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:24,362 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:24,362 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:24,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:24,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:24,480 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:24,482 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:24,808 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:24,966 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:24,966 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:24,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:24 BoogieIcfgContainer [2023-11-23 21:29:24,968 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:24,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:24,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:24,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:24,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:23" (1/3) ... [2023-11-23 21:29:24,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64894681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:24, skipping insertion in model container [2023-11-23 21:29:24,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (2/3) ... [2023-11-23 21:29:24,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64894681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:24, skipping insertion in model container [2023-11-23 21:29:24,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:24" (3/3) ... [2023-11-23 21:29:24,978 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-6.i [2023-11-23 21:29:25,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:25,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:25,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:25,066 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;@717d046d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:25,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:25,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:29:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 21:29:25,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:25,082 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:25,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:25,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:25,088 INFO L85 PathProgramCache]: Analyzing trace with hash 451450714, now seen corresponding path program 1 times [2023-11-23 21:29:25,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:25,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560527708] [2023-11-23 21:29:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:25,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:25,252 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:25,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114499662] [2023-11-23 21:29:25,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:25,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:25,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:25,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:25,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:29:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:25,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:29:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:25,889 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:29:25,892 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:29:25,893 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:29:25,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:26,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:29:26,108 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:29:26,112 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:29:26,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:29:26 BoogieIcfgContainer [2023-11-23 21:29:26,205 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:29:26,205 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:29:26,206 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:29:26,206 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:29:26,206 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:24" (3/4) ... [2023-11-23 21:29:26,208 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:29:26,209 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:29:26,211 INFO L158 Benchmark]: Toolchain (without parser) took 2407.22ms. Allocated memory is still 176.2MB. Free memory was 137.5MB in the beginning and 137.3MB in the end (delta: 246.2kB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,211 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:26,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.12ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 124.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.46ms. Allocated memory is still 176.2MB. Free memory was 124.2MB in the beginning and 121.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,213 INFO L158 Benchmark]: Boogie Preprocessor took 51.84ms. Allocated memory is still 176.2MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,214 INFO L158 Benchmark]: RCFGBuilder took 721.86ms. Allocated memory is still 176.2MB. Free memory was 119.2MB in the beginning and 89.8MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,215 INFO L158 Benchmark]: TraceAbstraction took 1233.48ms. Allocated memory is still 176.2MB. Free memory was 89.3MB in the beginning and 137.3MB in the end (delta: -48.0MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,215 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 176.2MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:26,219 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.12ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 124.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.46ms. Allocated memory is still 176.2MB. Free memory was 124.2MB in the beginning and 121.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.84ms. Allocated memory is still 176.2MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 721.86ms. Allocated memory is still 176.2MB. Free memory was 119.2MB in the beginning and 89.8MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1233.48ms. Allocated memory is still 176.2MB. Free memory was 89.3MB in the beginning and 137.3MB in the end (delta: -48.0MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 176.2MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 0; [L23] unsigned short int var_1_4 = 32; [L24] unsigned short int var_1_6 = 10; [L25] signed long int var_1_7 = 4; [L26] signed long int var_1_8 = 2; [L27] double var_1_9 = 0.0; [L28] double var_1_10 = 64.2; [L29] double var_1_11 = 0.0; [L30] double var_1_12 = 0.25; [L31] unsigned short int var_1_13 = 36833; [L32] unsigned char var_1_14 = 0; [L33] unsigned char var_1_16 = 0; [L34] unsigned char var_1_17 = 0; [L35] signed long int var_1_18 = -32; [L36] unsigned long int var_1_20 = 50; [L37] unsigned long int var_1_21 = 2655070710; [L38] unsigned char last_1_var_1_14 = 0; [L39] signed long int last_1_var_1_18 = -32; [L40] unsigned long int last_1_var_1_20 = 50; [L110] isInitial = 1 [L111] FCALL initially() [L112] COND TRUE 1 [L113] CALL updateLastVariables() [L101] last_1_var_1_14 = var_1_14 [L102] last_1_var_1_18 = var_1_18 [L103] last_1_var_1_20 = var_1_20 [L113] RET updateLastVariables() [L114] CALL updateVariables() [L69] var_1_4 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L71] CALL assume_abort_if_not(var_1_4 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_4 <= 65535) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L72] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L73] var_1_7 = __VERIFIER_nondet_long() [L74] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=2, var_1_9=0] [L75] CALL assume_abort_if_not(var_1_7 <= 17) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_7 <= 17) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=2, var_1_9=0] [L76] var_1_8 = __VERIFIER_nondet_long() [L77] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_8 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_8 <= 16) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16, var_1_9=0] [L79] var_1_9 = __VERIFIER_nondet_double() [L80] CALL assume_abort_if_not((var_1_9 >= 4611686.018427387900e+12F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_9 >= 4611686.018427387900e+12F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L81] var_1_10 = __VERIFIER_nondet_double() [L82] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427387900e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427387900e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L83] var_1_11 = __VERIFIER_nondet_double() [L84] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L85] var_1_12 = __VERIFIER_nondet_double() [L86] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L87] var_1_13 = __VERIFIER_nondet_ushort() [L88] CALL assume_abort_if_not(var_1_13 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 >= 32767) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L89] CALL assume_abort_if_not(var_1_13 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_13 <= 65534) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L90] var_1_16 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L92] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L93] var_1_17 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L95] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L96] var_1_21 = __VERIFIER_nondet_ulong() [L97] CALL assume_abort_if_not(var_1_21 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2147483647, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_21 >= 2147483647) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2147483647, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L98] CALL assume_abort_if_not(var_1_21 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2147483647, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_21 <= 4294967294) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2147483647, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L114] RET updateVariables() [L115] CALL step() [L44] COND TRUE (var_1_4 - last_1_var_1_20) == last_1_var_1_18 [L45] COND FALSE !(((var_1_9 - var_1_10) - var_1_11) > var_1_12) [L51] COND TRUE var_1_13 > var_1_6 [L52] var_1_18 = (((((var_1_6) < (var_1_13)) ? (var_1_6) : (var_1_13))) - var_1_6) [L54] COND FALSE !(\read(last_1_var_1_14)) [L57] var_1_20 = ((((((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20)))) < ((var_1_21 - var_1_7))) ? (((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20)))) : ((var_1_21 - var_1_7)))) [L58] unsigned long int stepLocal_1 = var_1_20; [L59] unsigned long int stepLocal_0 = var_1_20; [L60] COND FALSE !((((((var_1_18) > (var_1_18)) ? (var_1_18) : (var_1_18))) / var_1_4) > stepLocal_1) [L115] RET step() [L116] CALL, EXPR property() [L106-L107] return ((((((((((var_1_18) > (var_1_18)) ? (var_1_18) : (var_1_18))) / var_1_4) > var_1_20) ? ((var_1_20 == var_1_18) ? (var_1_1 == ((unsigned long int) 1000000000u)) : (var_1_1 == ((unsigned long int) 128u))) : 1) && (((var_1_4 - last_1_var_1_20) == last_1_var_1_18) ? ((((var_1_9 - var_1_10) - var_1_11) > var_1_12) ? (var_1_6 == ((unsigned short int) (var_1_13 - var_1_8))) : 1) : (var_1_6 == ((unsigned short int) var_1_13)))) && (last_1_var_1_14 ? (var_1_14 == ((unsigned char) (var_1_16 && var_1_17))) : 1)) && ((var_1_13 > var_1_6) ? (var_1_18 == ((signed long int) (((((var_1_6) < (var_1_13)) ? (var_1_6) : (var_1_13))) - var_1_6))) : 1)) && (var_1_20 == ((unsigned long int) ((((((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20)))) < ((var_1_21 - var_1_7))) ? (((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20)))) : ((var_1_21 - var_1_7)))))) ; [L116] RET, EXPR property() [L116] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=0, var_1_20=50, var_1_21=2147483647, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=32767, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=0, var_1_20=50, var_1_21=2147483647, var_1_4=18, var_1_6=10, var_1_7=17, var_1_8=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 19, 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=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:29:26,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65abe7cb35c9006c604c8d360a97fa1428e6f141c9dbba60a5491dff00208bf7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:28,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:28,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:29:28,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:28,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:28,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:28,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:28,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:28,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:28,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:28,987 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:28,988 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:28,988 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:28,990 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:28,991 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:28,991 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:28,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:28,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:28,994 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:29:28,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:29:28,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:28,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:28,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:28,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:28,997 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:29:28,998 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:29:28,998 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:29:28,999 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:29:28,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:29,000 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:29,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:29,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:29:29,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:29,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:29,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:29,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:29,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:29,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:29,004 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:29:29,005 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:29:29,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:29,006 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:29,007 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:29,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:29,008 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_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65abe7cb35c9006c604c8d360a97fa1428e6f141c9dbba60a5491dff00208bf7 [2023-11-23 21:29:29,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:29,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:29,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:29,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:29,425 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:29,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i [2023-11-23 21:29:32,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:32,899 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:32,900 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i [2023-11-23 21:29:32,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/data/7cb4b67e3/9ea4698cbc384285aeab56a0b57b11d6/FLAG203ccec5d [2023-11-23 21:29:32,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/data/7cb4b67e3/9ea4698cbc384285aeab56a0b57b11d6 [2023-11-23 21:29:32,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:32,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:32,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:32,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:32,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:32,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:32" (1/1) ... [2023-11-23 21:29:32,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d58b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:32, skipping insertion in model container [2023-11-23 21:29:32,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:32" (1/1) ... [2023-11-23 21:29:32,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:33,204 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_c32bcd70-7ec6-4b38-a169-2fac0c765a44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i[912,925] [2023-11-23 21:29:33,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:33,320 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:33,340 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_c32bcd70-7ec6-4b38-a169-2fac0c765a44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i[912,925] [2023-11-23 21:29:33,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:33,425 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:33,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33 WrapperNode [2023-11-23 21:29:33,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:33,428 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:33,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:33,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:33,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,487 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2023-11-23 21:29:33,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:33,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:33,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:33,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:33,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:33,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:33,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:33,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:33,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:33,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:33,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:33,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:29:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:33,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:33,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:33,814 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:33,818 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:37,906 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:37,994 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:37,997 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:37,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:37 BoogieIcfgContainer [2023-11-23 21:29:37,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:38,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:38,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:38,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:38,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:32" (1/3) ... [2023-11-23 21:29:38,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715751a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:38, skipping insertion in model container [2023-11-23 21:29:38,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (2/3) ... [2023-11-23 21:29:38,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715751a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:38, skipping insertion in model container [2023-11-23 21:29:38,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:37" (3/3) ... [2023-11-23 21:29:38,012 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-6.i [2023-11-23 21:29:38,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:38,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:38,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:38,099 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;@7f0ffdd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:38,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:38,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:29:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 21:29:38,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:38,121 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:38,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:38,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:38,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1272058833, now seen corresponding path program 1 times [2023-11-23 21:29:38,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:38,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688459805] [2023-11-23 21:29:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:38,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:38,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:29:38,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:29:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:38,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:29:38,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:38,597 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-23 21:29:38,597 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:38,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:29:38,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688459805] [2023-11-23 21:29:38,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688459805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:38,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:38,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:29:38,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264068825] [2023-11-23 21:29:38,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:38,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:29:38,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:29:38,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:29:38,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:29:38,652 INFO L87 Difference]: Start difference. First operand has 50 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:29:39,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:39,163 INFO L93 Difference]: Finished difference Result 97 states and 171 transitions. [2023-11-23 21:29:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:29:39,181 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 116 [2023-11-23 21:29:39,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:39,187 INFO L225 Difference]: With dead ends: 97 [2023-11-23 21:29:39,188 INFO L226 Difference]: Without dead ends: 48 [2023-11-23 21:29:39,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:29:39,196 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:39,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:29:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-23 21:29:39,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-23 21:29:39,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:29:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 72 transitions. [2023-11-23 21:29:39,259 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 72 transitions. Word has length 116 [2023-11-23 21:29:39,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:39,260 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 72 transitions. [2023-11-23 21:29:39,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:29:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 72 transitions. [2023-11-23 21:29:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 21:29:39,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:39,265 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:39,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:39,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:39,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:39,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:39,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1051369125, now seen corresponding path program 1 times [2023-11-23 21:29:39,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:39,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628517813] [2023-11-23 21:29:39,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:39,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:39,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:39,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:29:39,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:29:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:39,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:29:39,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:39,992 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-23 21:29:39,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:39,992 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:29:39,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628517813] [2023-11-23 21:29:39,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628517813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:39,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:39,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:39,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859914548] [2023-11-23 21:29:39,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:39,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:39,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:29:39,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:39,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:39,997 INFO L87 Difference]: Start difference. First operand 48 states and 72 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:29:41,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:41,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:41,933 INFO L93 Difference]: Finished difference Result 128 states and 190 transitions. [2023-11-23 21:29:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:41,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 116 [2023-11-23 21:29:41,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:41,940 INFO L225 Difference]: With dead ends: 128 [2023-11-23 21:29:41,940 INFO L226 Difference]: Without dead ends: 81 [2023-11-23 21:29:41,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:41,943 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 45 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:41,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 162 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 21:29:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-23 21:29:41,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2023-11-23 21:29:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 46 states have internal predecessors, (56), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:29:41,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 116 transitions. [2023-11-23 21:29:41,985 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 116 transitions. Word has length 116 [2023-11-23 21:29:41,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:41,986 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 116 transitions. [2023-11-23 21:29:41,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:29:41,987 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 116 transitions. [2023-11-23 21:29:42,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 21:29:42,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:42,001 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:42,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:42,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:42,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:42,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:42,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1468590809, now seen corresponding path program 1 times [2023-11-23 21:29:42,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:42,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566090442] [2023-11-23 21:29:42,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:42,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:42,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:42,208 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:29:42,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:29:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:42,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:29:42,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-23 21:29:43,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:43,190 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:29:43,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566090442] [2023-11-23 21:29:43,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566090442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:43,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:43,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:43,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735117461] [2023-11-23 21:29:43,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:43,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:29:43,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:29:43,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:29:43,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:29:43,194 INFO L87 Difference]: Start difference. First operand 78 states and 116 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:29:44,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:44,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:44,874 INFO L93 Difference]: Finished difference Result 155 states and 231 transitions. [2023-11-23 21:29:44,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:44,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 116 [2023-11-23 21:29:44,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:44,905 INFO L225 Difference]: With dead ends: 155 [2023-11-23 21:29:44,906 INFO L226 Difference]: Without dead ends: 78 [2023-11-23 21:29:44,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:44,909 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:44,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 67 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-23 21:29:44,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-23 21:29:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-23 21:29:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:29:44,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2023-11-23 21:29:44,951 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 116 [2023-11-23 21:29:44,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:44,952 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2023-11-23 21:29:44,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:29:44,952 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2023-11-23 21:29:44,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 21:29:44,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:44,958 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:44,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:45,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:45,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:45,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:45,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1411332507, now seen corresponding path program 1 times [2023-11-23 21:29:45,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:45,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326204937] [2023-11-23 21:29:45,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:45,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:45,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:45,172 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:29:45,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32bcd70-7ec6-4b38-a169-2fac0c765a44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 21:29:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:45,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 21:29:45,527 INFO L285 TraceCheckSpWp]: Computing forward predicates...