./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.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_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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_48763506-8a5a-41f6-83b9-34395c320f2e/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 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:24,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:24,939 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:09:24,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:24,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:24,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:24,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:24,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:24,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:24,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:24,995 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:24,996 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:24,997 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:24,998 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:24,998 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:24,999 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:24,999 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:25,000 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:25,000 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:25,001 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:25,001 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:25,002 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:25,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:25,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:25,004 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:25,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:25,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:25,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:25,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:25,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:25,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:25,007 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:25,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:25,007 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:25,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:25,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:25,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:25,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:25,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:25,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:25,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:25,010 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:25,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:25,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:25,011 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:25,011 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:25,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:25,011 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_48763506-8a5a-41f6-83b9-34395c320f2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 [2023-11-23 21:09:25,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:25,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:25,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:25,324 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:25,324 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:25,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2023-11-23 21:09:28,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:28,597 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:28,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2023-11-23 21:09:28,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/data/f92fa4204/e54defc3d668427f82c0c8cc4aeced47/FLAG11e69b245 [2023-11-23 21:09:28,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/data/f92fa4204/e54defc3d668427f82c0c8cc4aeced47 [2023-11-23 21:09:28,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:28,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:28,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:28,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:28,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:28,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:28,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e49fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28, skipping insertion in model container [2023-11-23 21:09:28,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:28,663 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:28,819 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_48763506-8a5a-41f6-83b9-34395c320f2e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2023-11-23 21:09:28,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:28,881 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:28,894 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_48763506-8a5a-41f6-83b9-34395c320f2e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2023-11-23 21:09:28,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:28,961 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:28,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28 WrapperNode [2023-11-23 21:09:28,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:28,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:28,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:28,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:28,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:28,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,053 INFO L138 Inliner]: procedures = 29, calls = 133, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 357 [2023-11-23 21:09:29,054 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:29,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:29,055 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:29,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:29,062 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:29,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:29,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:29,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:29,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:29,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:29,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:29,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:29,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 21:09:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:09:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 21:09:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:09:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-23 21:09:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:29,331 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:29,336 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:29,847 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:30,489 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:30,489 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:30,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:30 BoogieIcfgContainer [2023-11-23 21:09:30,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:30,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:30,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:30,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:30,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:28" (1/3) ... [2023-11-23 21:09:30,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d599a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:30, skipping insertion in model container [2023-11-23 21:09:30,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28" (2/3) ... [2023-11-23 21:09:30,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d599a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:30, skipping insertion in model container [2023-11-23 21:09:30,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:30" (3/3) ... [2023-11-23 21:09:30,505 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-31.i [2023-11-23 21:09:30,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:30,527 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:30,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:30,587 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;@51eadc92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:30,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:30,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:09:30,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 21:09:30,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:30,602 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:30,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:30,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:30,608 INFO L85 PathProgramCache]: Analyzing trace with hash 979637493, now seen corresponding path program 1 times [2023-11-23 21:09:30,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:30,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322618796] [2023-11-23 21:09:30,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:30,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:30,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:09:30,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763593691] [2023-11-23 21:09:30,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:30,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:30,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:30,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:30,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:09:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:31,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:09:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:31,998 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:09:32,000 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:09:32,002 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:09:32,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 21:09:32,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:09:32,231 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:09:32,240 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:09:32,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-23 21:09:32,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-23 21:09:32,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-23 21:09:32,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-23 21:09:32,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-23 21:09:32,290 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-23 21:09:32,290 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-23 21:09:32,290 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-23 21:09:32,291 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-23 21:09:32,291 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-23 21:09:32,291 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-23 21:09:32,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-23 21:09:32,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-23 21:09:32,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-23 21:09:32,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-23 21:09:32,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-23 21:09:32,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-23 21:09:32,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-23 21:09:32,295 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-23 21:09:32,295 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-23 21:09:32,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short55 could not be translated [2023-11-23 21:09:32,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-23 21:09:32,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-11-23 21:09:32,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-23 21:09:32,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-11-23 21:09:32,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-23 21:09:32,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-23 21:09:32,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-11-23 21:09:32,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-23 21:09:32,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-11-23 21:09:32,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short55 could not be translated [2023-11-23 21:09:32,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-23 21:09:32,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-23 21:09:32,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-23 21:09:32,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:09:32 BoogieIcfgContainer [2023-11-23 21:09:32,330 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:09:32,331 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:09:32,332 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:09:32,332 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:09:32,333 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:30" (3/4) ... [2023-11-23 21:09:32,335 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:09:32,336 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:09:32,338 INFO L158 Benchmark]: Toolchain (without parser) took 3712.51ms. Allocated memory is still 132.1MB. Free memory was 102.1MB in the beginning and 66.5MB in the end (delta: 35.7MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:32,338 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:32,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.80ms. Allocated memory is still 132.1MB. Free memory was 101.8MB in the beginning and 87.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:09:32,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.83ms. Allocated memory is still 132.1MB. Free memory was 87.4MB in the beginning and 83.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:09:32,340 INFO L158 Benchmark]: Boogie Preprocessor took 52.07ms. Allocated memory is still 132.1MB. Free memory was 83.7MB in the beginning and 80.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:32,341 INFO L158 Benchmark]: RCFGBuilder took 1385.16ms. Allocated memory is still 132.1MB. Free memory was 80.6MB in the beginning and 72.9MB in the end (delta: 7.7MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2023-11-23 21:09:32,342 INFO L158 Benchmark]: TraceAbstraction took 1834.92ms. Allocated memory is still 132.1MB. Free memory was 72.5MB in the beginning and 66.5MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:09:32,342 INFO L158 Benchmark]: Witness Printer took 6.03ms. Allocated memory is still 132.1MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:32,346 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 100.7MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.80ms. Allocated memory is still 132.1MB. Free memory was 101.8MB in the beginning and 87.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.83ms. Allocated memory is still 132.1MB. Free memory was 87.4MB in the beginning and 83.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.07ms. Allocated memory is still 132.1MB. Free memory was 83.7MB in the beginning and 80.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1385.16ms. Allocated memory is still 132.1MB. Free memory was 80.6MB in the beginning and 72.9MB in the end (delta: 7.7MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1834.92ms. Allocated memory is still 132.1MB. Free memory was 72.5MB in the beginning and 66.5MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Witness Printer took 6.03ms. Allocated memory is still 132.1MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 53. Possible FailurePath: [L34] unsigned char isInitial = 0; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L47] signed long int last_1_WrapperStruct00_var_1_7 = 4; [L48] double last_1_WrapperStruct00_var_1_13 = 0.97; [L115] isInitial = 1 [L116] FCALL initially() [L117] COND TRUE 1 [L118] CALL updateLastVariables() [L107] EXPR WrapperStruct00.var_1_7 [L107] last_1_WrapperStruct00_var_1_7 = WrapperStruct00.var_1_7 [L108] EXPR WrapperStruct00.var_1_13 [L108] last_1_WrapperStruct00_var_1_13 = WrapperStruct00.var_1_13 [L118] RET updateLastVariables() [L119] CALL updateVariables() [L88] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L89] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L91] WrapperStruct00.var_1_3 = __VERIFIER_nondet_long() [L92] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741822) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741822) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483646) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483646) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L94] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L95] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L97] WrapperStruct00.var_1_8 = __VERIFIER_nondet_long() [L98] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L100] WrapperStruct00.var_1_12 = __VERIFIER_nondet_uchar() [L101] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L103] WrapperStruct00.var_1_14 = __VERIFIER_nondet_double() [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L104] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F [L104] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L119] RET updateVariables() [L120] CALL step() [L52] EXPR WrapperStruct00.var_1_3 [L52] EXPR WrapperStruct00.var_1_8 [L52] COND FALSE !(! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) [L59] EXPR WrapperStruct00.var_1_12 [L59] WrapperStruct00.var_1_9 = WrapperStruct00.var_1_12 [L61] EXPR WrapperStruct00.var_1_9 [L61] EXPR WrapperStruct00.var_1_9 [L61] COND FALSE !(WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) [L64] EXPR WrapperStruct00.var_1_9 [L64] EXPR WrapperStruct00.var_1_3 [L64] WrapperStruct00.var_1_7 = (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3) [L66] EXPR WrapperStruct00.var_1_9 [L66] EXPR WrapperStruct00.var_1_3 [L66] EXPR WrapperStruct00.var_1_9 [L66] COND FALSE !((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) [L77] EXPR WrapperStruct00.var_1_14 [L77] WrapperStruct00.var_1_13 = WrapperStruct00.var_1_14 [L79] WrapperStruct00.var_1_2 [L79] COND TRUE WrapperStruct00.var_1_2 [L80] EXPR WrapperStruct00.var_1_3 [L80] EXPR WrapperStruct00.var_1_9 [L80] EXPR WrapperStruct00.var_1_9 [L80] WrapperStruct00.var_1_1 = ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9) [L120] RET step() [L121] CALL, EXPR property() [L111] EXPR WrapperStruct00.var_1_2 [L111] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1) [L111] EXPR WrapperStruct00.var_1_1 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1) [L111] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3)))) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR (WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))) [L111] EXPR WrapperStruct00.var_1_7 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR (WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))) [L111] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3)))) [L111] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12))) [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_8 [L111] EXPR (! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_12 [L111] EXPR (! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) [L111] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12))) [L111] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR ((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14)) [L111] EXPR WrapperStruct00.var_1_13 [L111] EXPR WrapperStruct00.var_1_14 [L111] EXPR ((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14)) [L111] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) [L111-L112] return (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) ; [L121] RET, EXPR property() [L121] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 1, TraceHistogramMax: 11, 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=31occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 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 21:09:32,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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_48763506-8a5a-41f6-83b9-34395c320f2e/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 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:35,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:35,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:09:35,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:35,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:35,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:35,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:35,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:35,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:35,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:35,359 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:35,360 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:35,360 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:35,362 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:35,362 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:35,362 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:35,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:35,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:35,365 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:35,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:35,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:35,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:35,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:35,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:35,368 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:09:35,368 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:09:35,369 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:09:35,370 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:35,370 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:35,370 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:35,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:35,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:09:35,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:35,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:35,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:35,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:35,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:35,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:35,374 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:09:35,375 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:09:35,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:35,376 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:35,376 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:35,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:35,377 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_48763506-8a5a-41f6-83b9-34395c320f2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 [2023-11-23 21:09:35,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:35,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:35,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:35,802 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:35,803 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:35,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2023-11-23 21:09:38,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:39,122 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:39,122 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2023-11-23 21:09:39,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/data/b58ba4a5d/4467e0919db94093ad0ef5497e2db3c1/FLAG45cc87aeb [2023-11-23 21:09:39,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/data/b58ba4a5d/4467e0919db94093ad0ef5497e2db3c1 [2023-11-23 21:09:39,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:39,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:39,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:39,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:39,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:39,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff0168c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39, skipping insertion in model container [2023-11-23 21:09:39,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,192 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:39,353 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_48763506-8a5a-41f6-83b9-34395c320f2e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2023-11-23 21:09:39,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:39,440 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:39,458 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_48763506-8a5a-41f6-83b9-34395c320f2e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2023-11-23 21:09:39,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:39,566 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:39,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39 WrapperNode [2023-11-23 21:09:39,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:39,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:39,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:39,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:39,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,668 INFO L138 Inliner]: procedures = 33, calls = 133, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 355 [2023-11-23 21:09:39,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:39,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:39,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:39,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:39,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:39,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:39,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:39,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:39,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:39,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:39,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:39,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:39,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:39,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-23 21:09:39,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-23 21:09:39,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 21:09:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:09:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-23 21:09:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-23 21:09:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 21:09:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:39,897 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:39,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 21:09:39,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 21:09:40,057 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:40,059 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:40,752 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:40,859 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:40,863 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:40,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:40 BoogieIcfgContainer [2023-11-23 21:09:40,864 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:40,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:40,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:40,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:40,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:39" (1/3) ... [2023-11-23 21:09:40,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54721aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:40, skipping insertion in model container [2023-11-23 21:09:40,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39" (2/3) ... [2023-11-23 21:09:40,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54721aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:40, skipping insertion in model container [2023-11-23 21:09:40,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:40" (3/3) ... [2023-11-23 21:09:40,876 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-31.i [2023-11-23 21:09:40,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:40,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:40,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:40,972 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;@77afefa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:40,973 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:40,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 66 states have (on average 1.5) internal successors, (99), 67 states have internal predecessors, (99), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:09:40,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 21:09:40,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:40,996 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:40,996 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:41,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:41,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1054894527, now seen corresponding path program 1 times [2023-11-23 21:09:41,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:41,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401683651] [2023-11-23 21:09:41,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:41,029 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 21:09:41,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:41,030 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:41,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:41,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:09:41,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-23 21:09:41,444 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:41,445 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401683651] [2023-11-23 21:09:41,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401683651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:41,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:41,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:09:41,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831525142] [2023-11-23 21:09:41,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:41,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:09:41,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:41,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:09:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:09:41,511 INFO L87 Difference]: Start difference. First operand has 80 states, 66 states have (on average 1.5) internal successors, (99), 67 states have internal predecessors, (99), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 21:09:41,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:41,577 INFO L93 Difference]: Finished difference Result 154 states and 246 transitions. [2023-11-23 21:09:41,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:09:41,580 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2023-11-23 21:09:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:41,590 INFO L225 Difference]: With dead ends: 154 [2023-11-23 21:09:41,590 INFO L226 Difference]: Without dead ends: 75 [2023-11-23 21:09:41,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 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 21:09:41,600 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:41,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:09:41,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-23 21:09:41,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-23 21:09:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.403225806451613) internal successors, (87), 62 states have internal predecessors, (87), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:09:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 109 transitions. [2023-11-23 21:09:41,647 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 109 transitions. Word has length 89 [2023-11-23 21:09:41,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:41,648 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 109 transitions. [2023-11-23 21:09:41,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 21:09:41,648 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 109 transitions. [2023-11-23 21:09:41,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 21:09:41,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:41,654 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:41,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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)] Ended with exit code 0 [2023-11-23 21:09:41,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:41,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:41,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:41,856 INFO L85 PathProgramCache]: Analyzing trace with hash -235112303, now seen corresponding path program 1 times [2023-11-23 21:09:41,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:41,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579239718] [2023-11-23 21:09:41,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:41,858 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 21:09:41,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:41,859 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:41,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:42,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:09:42,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:42,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-23 21:09:42,228 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:09:42,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:42,229 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:42,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579239718] [2023-11-23 21:09:42,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579239718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:42,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:42,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:42,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429729727] [2023-11-23 21:09:42,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:42,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:42,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:42,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:42,233 INFO L87 Difference]: Start difference. First operand 75 states and 109 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:09:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:42,298 INFO L93 Difference]: Finished difference Result 149 states and 217 transitions. [2023-11-23 21:09:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:42,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 89 [2023-11-23 21:09:42,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:42,301 INFO L225 Difference]: With dead ends: 149 [2023-11-23 21:09:42,301 INFO L226 Difference]: Without dead ends: 75 [2023-11-23 21:09:42,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 21:09:42,304 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:42,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:09:42,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-23 21:09:42,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-23 21:09:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 62 states have internal predecessors, (86), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:09:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 108 transitions. [2023-11-23 21:09:42,316 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 108 transitions. Word has length 89 [2023-11-23 21:09:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:42,318 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 108 transitions. [2023-11-23 21:09:42,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:09:42,318 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 108 transitions. [2023-11-23 21:09:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 21:09:42,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:42,322 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:42,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:42,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:42,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:42,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:42,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1256180657, now seen corresponding path program 1 times [2023-11-23 21:09:42,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:42,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668681421] [2023-11-23 21:09:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:42,531 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 21:09:42,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:42,533 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:42,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:42,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:09:42,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:42,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 21:09:43,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:09:43,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 33 [2023-11-23 21:09:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:09:43,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:43,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:43,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668681421] [2023-11-23 21:09:43,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668681421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:43,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:43,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:09:43,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201859638] [2023-11-23 21:09:43,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:43,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:09:43,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:43,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:09:43,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:09:43,182 INFO L87 Difference]: Start difference. First operand 75 states and 108 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:09:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:44,214 INFO L93 Difference]: Finished difference Result 207 states and 295 transitions. [2023-11-23 21:09:44,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:09:44,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 89 [2023-11-23 21:09:44,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:44,218 INFO L225 Difference]: With dead ends: 207 [2023-11-23 21:09:44,218 INFO L226 Difference]: Without dead ends: 133 [2023-11-23 21:09:44,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:09:44,220 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 108 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:44,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 357 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 21:09:44,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-23 21:09:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 112. [2023-11-23 21:09:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 96 states have (on average 1.3854166666666667) internal successors, (133), 97 states have internal predecessors, (133), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:09:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 159 transitions. [2023-11-23 21:09:44,239 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 159 transitions. Word has length 89 [2023-11-23 21:09:44,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:44,239 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 159 transitions. [2023-11-23 21:09:44,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:09:44,240 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 159 transitions. [2023-11-23 21:09:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-23 21:09:44,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:44,242 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:44,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:44,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:44,453 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:44,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:44,454 INFO L85 PathProgramCache]: Analyzing trace with hash -2134309388, now seen corresponding path program 1 times [2023-11-23 21:09:44,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:44,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059387028] [2023-11-23 21:09:44,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:44,455 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 21:09:44,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:44,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:44,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:44,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:09:44,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:44,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-23 21:09:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:09:44,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:44,762 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:44,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059387028] [2023-11-23 21:09:44,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059387028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:44,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:44,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:44,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073291404] [2023-11-23 21:09:44,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:44,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:44,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:44,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:44,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:44,767 INFO L87 Difference]: Start difference. First operand 112 states and 159 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:09:44,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:44,824 INFO L93 Difference]: Finished difference Result 255 states and 363 transitions. [2023-11-23 21:09:44,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:44,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 91 [2023-11-23 21:09:44,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:44,829 INFO L225 Difference]: With dead ends: 255 [2023-11-23 21:09:44,829 INFO L226 Difference]: Without dead ends: 144 [2023-11-23 21:09:44,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 21:09:44,831 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 24 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:44,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 201 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:09:44,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-23 21:09:44,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 112. [2023-11-23 21:09:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 96 states have (on average 1.3645833333333333) internal successors, (131), 97 states have internal predecessors, (131), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:09:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 157 transitions. [2023-11-23 21:09:44,846 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 157 transitions. Word has length 91 [2023-11-23 21:09:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:44,847 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 157 transitions. [2023-11-23 21:09:44,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:09:44,848 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 157 transitions. [2023-11-23 21:09:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-23 21:09:44,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:44,850 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:44,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:45,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:45,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:45,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:45,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1454251018, now seen corresponding path program 1 times [2023-11-23 21:09:45,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:45,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239777902] [2023-11-23 21:09:45,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:45,058 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 21:09:45,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:45,059 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:09:45,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 21:09:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:45,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 21:09:45,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:45,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 21:09:45,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 21:09:45,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:09:45,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 33 [2023-11-23 21:09:45,462 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:09:45,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 46 [2023-11-23 21:09:47,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:09:47,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 49 [2023-11-23 21:09:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:09:47,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:47,711 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239777902] [2023-11-23 21:09:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239777902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:47,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:47,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:09:47,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157787389] [2023-11-23 21:09:47,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:47,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:09:47,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:47,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:09:47,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=29, Unknown=1, NotChecked=0, Total=42 [2023-11-23 21:09:47,714 INFO L87 Difference]: Start difference. First operand 112 states and 157 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:09:49,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:09:51,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:09:54,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:09:56,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:09:58,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:10:00,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:10:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:00,956 INFO L93 Difference]: Finished difference Result 264 states and 369 transitions. [2023-11-23 21:10:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:10:00,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 91 [2023-11-23 21:10:00,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:00,959 INFO L225 Difference]: With dead ends: 264 [2023-11-23 21:10:00,960 INFO L226 Difference]: Without dead ends: 153 [2023-11-23 21:10:00,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=39, Invalid=70, Unknown=1, NotChecked=0, Total=110 [2023-11-23 21:10:00,962 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 112 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:00,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 380 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 13.0s Time] [2023-11-23 21:10:00,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-23 21:10:00,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 89. [2023-11-23 21:10:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 74 states have internal predecessors, (97), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:10:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 123 transitions. [2023-11-23 21:10:00,987 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 123 transitions. Word has length 91 [2023-11-23 21:10:00,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:00,988 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 123 transitions. [2023-11-23 21:10:00,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:10:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 123 transitions. [2023-11-23 21:10:00,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-23 21:10:00,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:00,996 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:01,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:01,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:10:01,207 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:01,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1545061575, now seen corresponding path program 1 times [2023-11-23 21:10:01,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:01,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846349649] [2023-11-23 21:10:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:01,209 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 21:10:01,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:01,210 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:10:01,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-23 21:10:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:01,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 21:10:01,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:01,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 21:10:01,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-11-23 21:10:01,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2023-11-23 21:10:01,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:01,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2023-11-23 21:10:02,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:02,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2023-11-23 21:10:02,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:02,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 48 [2023-11-23 21:10:04,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:04,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2023-11-23 21:10:04,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:04,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2023-11-23 21:10:04,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:04,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 74 [2023-11-23 21:10:09,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:09,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 78 treesize of output 95 [2023-11-23 21:10:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 128 proven. 27 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-23 21:10:09,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:10:09,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:09,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846349649] [2023-11-23 21:10:09,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846349649] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 21:10:09,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:10:09,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 15 [2023-11-23 21:10:09,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248358852] [2023-11-23 21:10:09,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:09,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:09,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:09,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=154, Unknown=3, NotChecked=0, Total=210 [2023-11-23 21:10:09,663 INFO L87 Difference]: Start difference. First operand 89 states and 123 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:10:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:10,254 INFO L93 Difference]: Finished difference Result 221 states and 303 transitions. [2023-11-23 21:10:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:10:10,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 91 [2023-11-23 21:10:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:10,257 INFO L225 Difference]: With dead ends: 221 [2023-11-23 21:10:10,258 INFO L226 Difference]: Without dead ends: 137 [2023-11-23 21:10:10,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=59, Invalid=178, Unknown=3, NotChecked=0, Total=240 [2023-11-23 21:10:10,259 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 73 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:10,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 349 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:10:10,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-23 21:10:10,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 89. [2023-11-23 21:10:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 74 states have internal predecessors, (96), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:10:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 122 transitions. [2023-11-23 21:10:10,272 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 122 transitions. Word has length 91 [2023-11-23 21:10:10,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:10,273 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 122 transitions. [2023-11-23 21:10:10,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:10:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 122 transitions. [2023-11-23 21:10:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 21:10:10,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:10,275 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:10,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:10,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:10:10,483 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:10,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:10,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1701312395, now seen corresponding path program 1 times [2023-11-23 21:10:10,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:10,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565906145] [2023-11-23 21:10:10,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:10,484 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 21:10:10,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:10,486 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:10:10,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 (8)] Waiting until timeout for monitored process [2023-11-23 21:10:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:10,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:10:10,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:10:10,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:10,743 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:10,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565906145] [2023-11-23 21:10:10,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565906145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:10,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:10,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:10:10,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173169216] [2023-11-23 21:10:10,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:10,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:10,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:10,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:10,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:10:10,746 INFO L87 Difference]: Start difference. First operand 89 states and 122 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:10:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:10,869 INFO L93 Difference]: Finished difference Result 194 states and 265 transitions. [2023-11-23 21:10:10,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:10:10,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 92 [2023-11-23 21:10:10,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:10,871 INFO L225 Difference]: With dead ends: 194 [2023-11-23 21:10:10,871 INFO L226 Difference]: Without dead ends: 110 [2023-11-23 21:10:10,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:10:10,873 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 52 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:10,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 438 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:10:10,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-23 21:10:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 90. [2023-11-23 21:10:10,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 75 states have internal predecessors, (97), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:10:10,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 123 transitions. [2023-11-23 21:10:10,884 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 123 transitions. Word has length 92 [2023-11-23 21:10:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:10,885 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 123 transitions. [2023-11-23 21:10:10,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:10:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 123 transitions. [2023-11-23 21:10:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 21:10:10,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:10,887 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:10,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:11,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:10:11,094 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:11,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:11,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1000247817, now seen corresponding path program 1 times [2023-11-23 21:10:11,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:11,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538186781] [2023-11-23 21:10:11,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:11,095 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 21:10:11,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:11,096 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:10:11,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 (9)] Waiting until timeout for monitored process [2023-11-23 21:10:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:11,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 21:10:11,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:11,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 21:10:11,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-11-23 21:10:11,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-11-23 21:10:11,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-11-23 21:10:11,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-11-23 21:10:11,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2023-11-23 21:10:13,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:13,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2023-11-23 21:10:14,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:14,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2023-11-23 21:10:14,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:14,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 51 [2023-11-23 21:10:18,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:18,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 59 [2023-11-23 21:10:18,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:18,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 27 [2023-11-23 21:10:18,412 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 27 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-11-23 21:10:18,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:10:18,581 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:18,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538186781] [2023-11-23 21:10:18,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538186781] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 21:10:18,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:10:18,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-11-23 21:10:18,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414214038] [2023-11-23 21:10:18,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:18,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:18,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:18,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:18,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=140, Unknown=3, NotChecked=0, Total=182 [2023-11-23 21:10:18,584 INFO L87 Difference]: Start difference. First operand 90 states and 123 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:10:18,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:18,969 INFO L93 Difference]: Finished difference Result 200 states and 270 transitions. [2023-11-23 21:10:18,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:10:18,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 92 [2023-11-23 21:10:18,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:18,971 INFO L225 Difference]: With dead ends: 200 [2023-11-23 21:10:18,972 INFO L226 Difference]: Without dead ends: 115 [2023-11-23 21:10:18,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=44, Invalid=163, Unknown=3, NotChecked=0, Total=210 [2023-11-23 21:10:18,973 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 90 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:18,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 242 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:10:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-23 21:10:18,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 90. [2023-11-23 21:10:18,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 75 states have internal predecessors, (96), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:10:18,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 122 transitions. [2023-11-23 21:10:18,983 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 122 transitions. Word has length 92 [2023-11-23 21:10:18,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:18,983 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 122 transitions. [2023-11-23 21:10:18,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:10:18,984 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2023-11-23 21:10:18,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 21:10:18,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:18,985 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:18,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:19,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:10:19,192 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:19,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:19,193 INFO L85 PathProgramCache]: Analyzing trace with hash -947029397, now seen corresponding path program 1 times [2023-11-23 21:10:19,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:19,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218261973] [2023-11-23 21:10:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:19,194 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 21:10:19,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:19,195 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 21:10:19,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48763506-8a5a-41f6-83b9-34395c320f2e/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 (10)] Waiting until timeout for monitored process [2023-11-23 21:10:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:19,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-23 21:10:19,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:19,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 21:10:19,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 1 [2023-11-23 21:10:19,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2023-11-23 21:10:19,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:19,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 24 [2023-11-23 21:10:19,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:19,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 44 [2023-11-23 21:10:21,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:21,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 50 [2023-11-23 21:10:21,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:10:21,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 38 [2023-11-23 21:10:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:10:21,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:21,952 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:21,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218261973] [2023-11-23 21:10:21,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218261973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:21,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:21,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:10:21,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354751515] [2023-11-23 21:10:21,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:21,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:10:21,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:21,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:10:21,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=29, Unknown=1, NotChecked=0, Total=42 [2023-11-23 21:10:21,955 INFO L87 Difference]: Start difference. First operand 90 states and 122 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:10:24,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:10:26,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:10:28,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]