./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91 --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 f15b1832185bc6e5ed8ca3a7e02ddd56b37c4032577256d66dd546b8130db09b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:20:06,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:20:06,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:20:06,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:20:06,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:20:06,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:20:06,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:20:06,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:20:06,542 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:20:06,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:20:06,548 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:20:06,550 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:20:06,551 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:20:06,552 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:20:06,553 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:20:06,554 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:20:06,554 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:20:06,554 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:20:06,555 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:20:06,556 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:20:06,556 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:20:06,557 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:20:06,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:20:06,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:20:06,559 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:20:06,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:20:06,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:20:06,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:20:06,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:20:06,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:20:06,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:20:06,563 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:20:06,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:20:06,563 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:20:06,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:20:06,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:20:06,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:20:06,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:20:06,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:20:06,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:20:06,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:20:06,582 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:20:06,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:20:06,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:20:06,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:20:06,583 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:20:06,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:20:06,584 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_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f15b1832185bc6e5ed8ca3a7e02ddd56b37c4032577256d66dd546b8130db09b [2023-11-24 23:20:06,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:20:06,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:20:06,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:20:06,993 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:20:06,994 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:20:06,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i [2023-11-24 23:20:10,314 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:20:10,621 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:20:10,622 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i [2023-11-24 23:20:10,633 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/data/de0e098f6/df5ed45427d94055b1209cb1217b0881/FLAG2eaa40330 [2023-11-24 23:20:10,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/data/de0e098f6/df5ed45427d94055b1209cb1217b0881 [2023-11-24 23:20:10,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:20:10,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:20:10,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:20:10,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:20:10,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:20:10,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:20:10" (1/1) ... [2023-11-24 23:20:10,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0771fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:10, skipping insertion in model container [2023-11-24 23:20:10,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:20:10" (1/1) ... [2023-11-24 23:20:10,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:20:10,889 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_f1dcdce9-daf6-48bd-a001-3a4292108113/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i[916,929] [2023-11-24 23:20:10,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:20:10,976 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:20:10,990 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_f1dcdce9-daf6-48bd-a001-3a4292108113/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i[916,929] [2023-11-24 23:20:11,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:20:11,060 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:20:11,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11 WrapperNode [2023-11-24 23:20:11,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:20:11,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:20:11,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:20:11,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:20:11,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,148 INFO L138 Inliner]: procedures = 29, calls = 121, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 372 [2023-11-24 23:20:11,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:20:11,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:20:11,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:20:11,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:20:11,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,250 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,253 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:20:11,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:20:11,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:20:11,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:20:11,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:20:11,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:20:11,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:20:11,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:20:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:20:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:20:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:20:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:20:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:20:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-24 23:20:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:20:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:20:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:20:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:20:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:20:11,511 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:20:11,514 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:20:12,178 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:20:13,052 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:20:13,053 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:20:13,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:20:13 BoogieIcfgContainer [2023-11-24 23:20:13,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:20:13,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:20:13,060 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:20:13,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:20:13,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:20:10" (1/3) ... [2023-11-24 23:20:13,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8e0780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:20:13, skipping insertion in model container [2023-11-24 23:20:13,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (2/3) ... [2023-11-24 23:20:13,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8e0780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:20:13, skipping insertion in model container [2023-11-24 23:20:13,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:20:13" (3/3) ... [2023-11-24 23:20:13,071 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-22.i [2023-11-24 23:20:13,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:20:13,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:20:13,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:20:13,150 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;@70eb1ab1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:20:13,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:20:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:20:13,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-24 23:20:13,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:13,165 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:13,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:13,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:13,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1405571781, now seen corresponding path program 1 times [2023-11-24 23:20:13,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:20:13,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852015320] [2023-11-24 23:20:13,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:13,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:20:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:20:15,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:20:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:20:16,016 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:20:16,018 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:20:16,020 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:20:16,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:20:16,028 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:20:16,036 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:20:16,102 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-11-24 23:20:16,104 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-11-24 23:20:16,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated [2023-11-24 23:20:16,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated [2023-11-24 23:20:16,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated [2023-11-24 23:20:16,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-24 23:20:16,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-24 23:20:16,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-24 23:20:16,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-11-24 23:20:16,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-24 23:20:16,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated [2023-11-24 23:20:16,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-11-24 23:20:16,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-24 23:20:16,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-24 23:20:16,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated [2023-11-24 23:20:16,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated [2023-11-24 23:20:16,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-24 23:20:16,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-24 23:20:16,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-24 23:20:16,124 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-24 23:20:16,124 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated [2023-11-24 23:20:16,124 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-24 23:20:16,125 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated [2023-11-24 23:20:16,125 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-24 23:20:16,126 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-11-24 23:20:16,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-24 23:20:16,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated [2023-11-24 23:20:16,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated [2023-11-24 23:20:16,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-24 23:20:16,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-24 23:20:16,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-24 23:20:16,131 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-11-24 23:20:16,131 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-24 23:20:16,132 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short55 could not be translated [2023-11-24 23:20:16,132 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-11-24 23:20:16,133 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-24 23:20:16,133 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-11-24 23:20:16,133 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-24 23:20:16,134 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-24 23:20:16,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-24 23:20:16,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-24 23:20:16,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-24 23:20:16,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-11-24 23:20:16,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-24 23:20:16,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short55 could not be translated [2023-11-24 23:20:16,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-11-24 23:20:16,139 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-24 23:20:16,140 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-24 23:20:16,146 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-24 23:20:16,147 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-24 23:20:16,150 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-24 23:20:16,151 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-24 23:20:16,152 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-24 23:20:16,154 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-24 23:20:16,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:20:16 BoogieIcfgContainer [2023-11-24 23:20:16,188 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:20:16,191 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:20:16,191 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:20:16,191 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:20:16,192 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:20:13" (3/4) ... [2023-11-24 23:20:16,198 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:20:16,200 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:20:16,202 INFO L158 Benchmark]: Toolchain (without parser) took 5547.68ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 138.8MB in the beginning and 173.2MB in the end (delta: -34.5MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-11-24 23:20:16,204 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:20:16,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.83ms. Allocated memory is still 169.9MB. Free memory was 138.6MB in the beginning and 127.4MB in the end (delta: 11.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-11-24 23:20:16,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.43ms. Allocated memory is still 169.9MB. Free memory was 127.4MB in the beginning and 124.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:20:16,208 INFO L158 Benchmark]: Boogie Preprocessor took 111.66ms. Allocated memory is still 169.9MB. Free memory was 124.0MB in the beginning and 121.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:20:16,213 INFO L158 Benchmark]: RCFGBuilder took 1793.71ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 121.1MB in the beginning and 117.1MB in the end (delta: 3.9MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2023-11-24 23:20:16,215 INFO L158 Benchmark]: TraceAbstraction took 3128.04ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 116.1MB in the beginning and 174.3MB in the end (delta: -58.2MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2023-11-24 23:20:16,215 INFO L158 Benchmark]: Witness Printer took 9.25ms. Allocated memory is still 247.5MB. Free memory was 173.2MB in the beginning and 173.2MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:20:16,224 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.83ms. Allocated memory is still 169.9MB. Free memory was 138.6MB in the beginning and 127.4MB in the end (delta: 11.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.43ms. Allocated memory is still 169.9MB. Free memory was 127.4MB in the beginning and 124.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.66ms. Allocated memory is still 169.9MB. Free memory was 124.0MB in the beginning and 121.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1793.71ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 121.1MB in the beginning and 117.1MB in the end (delta: 3.9MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3128.04ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 116.1MB in the beginning and 174.3MB in the end (delta: -58.2MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. * Witness Printer took 9.25ms. Allocated memory is still 247.5MB. Free memory was 173.2MB in the beginning and 173.2MB in the end (delta: 2.6kB). 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~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short55 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~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 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 Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 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 someBinaryFLOATComparisonOperation at line 92, overapproximation of bitwiseAnd at line 57, overapproximation of someBinaryDOUBLEComparisonOperation at line 60, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] float float_Array_0[2][2] = { {64.2, 128.75}, {7.6, 5.9} }; [L28-L30] signed short int signed_short_int_Array_0[1] = { -5 }; [L31-L33] unsigned long int unsigned_long_int_Array_0[2] = { 3135928546, 8 }; [L34-L36] unsigned short int unsigned_short_int_Array_0[2] = { 44772, 256 }; [L37] signed short int last_1_signed_short_int_Array_0_0_ = -5; [L38] unsigned long int last_1_unsigned_long_int_Array_0_1_ = 8; [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] CALL updateLastVariables() [L88] EXPR signed_short_int_Array_0[0] [L88] last_1_signed_short_int_Array_0_0_ = signed_short_int_Array_0[0] [L89] EXPR unsigned_long_int_Array_0[1] [L89] last_1_unsigned_long_int_Array_0_1_ = unsigned_long_int_Array_0[1] [L99] RET updateLastVariables() [L100] CALL updateVariables() [L71] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L72] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L73] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L74] float_Array_0[0][0] = __VERIFIER_nondet_float() [L75] EXPR float_Array_0[0][0] [L75] EXPR float_Array_0[0][0] >= -230584.3009213691390e+13F && float_Array_0[0][0] <= -1.0e-20F [L75] EXPR float_Array_0[0][0] [L75] EXPR float_Array_0[0][0] >= -230584.3009213691390e+13F && float_Array_0[0][0] <= -1.0e-20F [L75] EXPR (float_Array_0[0][0] >= -230584.3009213691390e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 2305843.009213691390e+12F && float_Array_0[0][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L75] CALL assume_abort_if_not((float_Array_0[0][0] >= -230584.3009213691390e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 2305843.009213691390e+12F && float_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((float_Array_0[0][0] >= -230584.3009213691390e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 2305843.009213691390e+12F && float_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L76] float_Array_0[1][0] = __VERIFIER_nondet_float() [L77] EXPR float_Array_0[1][0] [L77] EXPR float_Array_0[1][0] >= -115292.1504606845700e+13F && float_Array_0[1][0] <= -1.0e-20F [L77] EXPR float_Array_0[1][0] [L77] EXPR float_Array_0[1][0] >= -115292.1504606845700e+13F && float_Array_0[1][0] <= -1.0e-20F [L77] EXPR (float_Array_0[1][0] >= -115292.1504606845700e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 1152921.504606845700e+12F && float_Array_0[1][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L77] CALL assume_abort_if_not((float_Array_0[1][0] >= -115292.1504606845700e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 1152921.504606845700e+12F && float_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((float_Array_0[1][0] >= -115292.1504606845700e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 1152921.504606845700e+12F && float_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L78] float_Array_0[0][1] = __VERIFIER_nondet_float() [L79] EXPR float_Array_0[0][1] [L79] EXPR float_Array_0[0][1] >= -461168.6018427382800e+13F && float_Array_0[0][1] <= -1.0e-20F [L79] EXPR float_Array_0[0][1] [L79] EXPR float_Array_0[0][1] >= -461168.6018427382800e+13F && float_Array_0[0][1] <= -1.0e-20F [L79] EXPR (float_Array_0[0][1] >= -461168.6018427382800e+13F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 4611686.018427382800e+12F && float_Array_0[0][1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L79] CALL assume_abort_if_not((float_Array_0[0][1] >= -461168.6018427382800e+13F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 4611686.018427382800e+12F && float_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((float_Array_0[0][1] >= -461168.6018427382800e+13F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 4611686.018427382800e+12F && float_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L80] unsigned_long_int_Array_0[0] = __VERIFIER_nondet_ulong() [L81] EXPR unsigned_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L81] CALL assume_abort_if_not(unsigned_long_int_Array_0[0] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(unsigned_long_int_Array_0[0] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L82] EXPR unsigned_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L82] CALL assume_abort_if_not(unsigned_long_int_Array_0[0] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(unsigned_long_int_Array_0[0] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L83] unsigned_short_int_Array_0[0] = __VERIFIER_nondet_ushort() [L84] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L84] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] >= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_short_int_Array_0[0] >= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L85] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L85] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(unsigned_short_int_Array_0[0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] RET updateVariables() [L101] CALL step() [L42] signed long int stepLocal_0 = last_1_signed_short_int_Array_0_0_; [L43] BOOL_unsigned_char_Array_0[0] [L43] COND TRUE BOOL_unsigned_char_Array_0[0] [L44] unsigned_short_int_Array_0[1] = last_1_signed_short_int_Array_0_0_ [L50] EXPR unsigned_short_int_Array_0[1] [L50] EXPR unsigned_short_int_Array_0[1] [L50] COND TRUE unsigned_short_int_Array_0[1] == unsigned_short_int_Array_0[1] [L51] EXPR unsigned_short_int_Array_0[1] [L51] signed_short_int_Array_0[0] = (unsigned_short_int_Array_0[1] + -16) [L57] EXPR unsigned_short_int_Array_0[1] [L57] EXPR unsigned_short_int_Array_0[1] & last_1_unsigned_long_int_Array_0_1_ [L57] COND TRUE last_1_unsigned_long_int_Array_0_1_ >= (unsigned_short_int_Array_0[1] & last_1_unsigned_long_int_Array_0_1_) [L58] EXPR unsigned_short_int_Array_0[0] [L58] EXPR ((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0]) [L58] EXPR unsigned_long_int_Array_0[0] [L58] EXPR ((((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) < ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_))) ? (((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) : ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_)) [L58] EXPR unsigned_short_int_Array_0[0] [L58] EXPR ((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0]) [L58] EXPR ((((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) < ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_))) ? (((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) : ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_)) [L58] unsigned_long_int_Array_0[1] = ((((((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) < ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_))) ? (((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) : ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_)))) [L66] EXPR signed_short_int_Array_0[0] [L66] EXPR unsigned_short_int_Array_0[1] [L66] COND TRUE signed_short_int_Array_0[0] < unsigned_short_int_Array_0[1] [L67] EXPR float_Array_0[1][0] [L67] EXPR float_Array_0[0][0] [L67] EXPR float_Array_0[0][1] [L67] float_Array_0[1][1] = (((10.25f + float_Array_0[1][0]) + float_Array_0[0][0]) + float_Array_0[0][1]) [L101] RET step() [L102] CALL, EXPR property() [L92] EXPR unsigned_short_int_Array_0[1] [L92] EXPR unsigned_short_int_Array_0[1] [L92] EXPR (unsigned_short_int_Array_0[1] == unsigned_short_int_Array_0[1]) ? (signed_short_int_Array_0[0] == ((signed short int) (unsigned_short_int_Array_0[1] + -16))) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[0] == ((signed short int) unsigned_short_int_Array_0[1])) : 1) [L92] EXPR signed_short_int_Array_0[0] [L92] EXPR unsigned_short_int_Array_0[1] [L92] EXPR (unsigned_short_int_Array_0[1] == unsigned_short_int_Array_0[1]) ? (signed_short_int_Array_0[0] == ((signed short int) (unsigned_short_int_Array_0[1] + -16))) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[0] == ((signed short int) unsigned_short_int_Array_0[1])) : 1) [L92] EXPR ((unsigned_short_int_Array_0[1] == unsigned_short_int_Array_0[1]) ? (signed_short_int_Array_0[0] == ((signed short int) (unsigned_short_int_Array_0[1] + -16))) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[0] == ((signed short int) unsigned_short_int_Array_0[1])) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) last_1_signed_short_int_Array_0_0_)) : ((last_1_signed_short_int_Array_0_0_ <= last_1_signed_short_int_Array_0_0_) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((((last_1_unsigned_long_int_Array_0_1_) > ((unsigned_short_int_Array_0[0] - 8))) ? (last_1_unsigned_long_int_Array_0_1_) : ((unsigned_short_int_Array_0[0] - 8)))))) : 1)) [L92] EXPR BOOL_unsigned_char_Array_0[0] [L92] EXPR BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) last_1_signed_short_int_Array_0_0_)) : ((last_1_signed_short_int_Array_0_0_ <= last_1_signed_short_int_Array_0_0_) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((((last_1_unsigned_long_int_Array_0_1_) > ((unsigned_short_int_Array_0[0] - 8))) ? (last_1_unsigned_long_int_Array_0_1_) : ((unsigned_short_int_Array_0[0] - 8)))))) : 1) [L92] EXPR unsigned_short_int_Array_0[1] [L92] EXPR BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) last_1_signed_short_int_Array_0_0_)) : ((last_1_signed_short_int_Array_0_0_ <= last_1_signed_short_int_Array_0_0_) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((((last_1_unsigned_long_int_Array_0_1_) > ((unsigned_short_int_Array_0[0] - 8))) ? (last_1_unsigned_long_int_Array_0_1_) : ((unsigned_short_int_Array_0[0] - 8)))))) : 1) [L92] EXPR ((unsigned_short_int_Array_0[1] == unsigned_short_int_Array_0[1]) ? (signed_short_int_Array_0[0] == ((signed short int) (unsigned_short_int_Array_0[1] + -16))) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[0] == ((signed short int) unsigned_short_int_Array_0[1])) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) last_1_signed_short_int_Array_0_0_)) : ((last_1_signed_short_int_Array_0_0_ <= last_1_signed_short_int_Array_0_0_) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((((last_1_unsigned_long_int_Array_0_1_) > ((unsigned_short_int_Array_0[0] - 8))) ? (last_1_unsigned_long_int_Array_0_1_) : ((unsigned_short_int_Array_0[0] - 8)))))) : 1)) [L92] EXPR (((unsigned_short_int_Array_0[1] == unsigned_short_int_Array_0[1]) ? (signed_short_int_Array_0[0] == ((signed short int) (unsigned_short_int_Array_0[1] + -16))) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[0] == ((signed short int) unsigned_short_int_Array_0[1])) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) last_1_signed_short_int_Array_0_0_)) : ((last_1_signed_short_int_Array_0_0_ <= last_1_signed_short_int_Array_0_0_) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((((last_1_unsigned_long_int_Array_0_1_) > ((unsigned_short_int_Array_0[0] - 8))) ? (last_1_unsigned_long_int_Array_0_1_) : ((unsigned_short_int_Array_0[0] - 8)))))) : 1))) && ((signed_short_int_Array_0[0] < unsigned_short_int_Array_0[1]) ? (float_Array_0[1][1] == ((float) (((10.25f + float_Array_0[1][0]) + float_Array_0[0][0]) + float_Array_0[0][1]))) : 1) [L92] EXPR signed_short_int_Array_0[0] [L92] EXPR unsigned_short_int_Array_0[1] [L92] EXPR (signed_short_int_Array_0[0] < unsigned_short_int_Array_0[1]) ? (float_Array_0[1][1] == ((float) (((10.25f + float_Array_0[1][0]) + float_Array_0[0][0]) + float_Array_0[0][1]))) : 1 [L92] EXPR float_Array_0[1][1] [L92] EXPR float_Array_0[1][0] [L92] EXPR float_Array_0[0][0] [L92] EXPR float_Array_0[0][1] [L92] EXPR (signed_short_int_Array_0[0] < unsigned_short_int_Array_0[1]) ? (float_Array_0[1][1] == ((float) (((10.25f + float_Array_0[1][0]) + float_Array_0[0][0]) + float_Array_0[0][1]))) : 1 [L92] EXPR (((unsigned_short_int_Array_0[1] == unsigned_short_int_Array_0[1]) ? (signed_short_int_Array_0[0] == ((signed short int) (unsigned_short_int_Array_0[1] + -16))) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[0] == ((signed short int) unsigned_short_int_Array_0[1])) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) last_1_signed_short_int_Array_0_0_)) : ((last_1_signed_short_int_Array_0_0_ <= last_1_signed_short_int_Array_0_0_) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((((last_1_unsigned_long_int_Array_0_1_) > ((unsigned_short_int_Array_0[0] - 8))) ? (last_1_unsigned_long_int_Array_0_1_) : ((unsigned_short_int_Array_0[0] - 8)))))) : 1))) && ((signed_short_int_Array_0[0] < unsigned_short_int_Array_0[1]) ? (float_Array_0[1][1] == ((float) (((10.25f + float_Array_0[1][0]) + float_Array_0[0][0]) + float_Array_0[0][1]))) : 1) [L92] EXPR ((((unsigned_short_int_Array_0[1] == unsigned_short_int_Array_0[1]) ? (signed_short_int_Array_0[0] == ((signed short int) (unsigned_short_int_Array_0[1] + -16))) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[0] == ((signed short int) unsigned_short_int_Array_0[1])) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) last_1_signed_short_int_Array_0_0_)) : ((last_1_signed_short_int_Array_0_0_ <= last_1_signed_short_int_Array_0_0_) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((((last_1_unsigned_long_int_Array_0_1_) > ((unsigned_short_int_Array_0[0] - 8))) ? (last_1_unsigned_long_int_Array_0_1_) : ((unsigned_short_int_Array_0[0] - 8)))))) : 1))) && ((signed_short_int_Array_0[0] < unsigned_short_int_Array_0[1]) ? (float_Array_0[1][1] == ((float) (((10.25f + float_Array_0[1][0]) + float_Array_0[0][0]) + float_Array_0[0][1]))) : 1)) && ((last_1_unsigned_long_int_Array_0_1_ >= (unsigned_short_int_Array_0[1] & last_1_unsigned_long_int_Array_0_1_)) ? (unsigned_long_int_Array_0[1] == ((unsigned long int) ((((((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) < ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_))) ? (((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) : ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_)))))) : ((5.7 < float_Array_0[0][0]) ? (unsigned_long_int_Array_0[1] == ((unsigned long int) last_1_unsigned_long_int_Array_0_1_)) : (unsigned_long_int_Array_0[1] == ((unsigned long int) last_1_unsigned_long_int_Array_0_1_)))) [L92-L93] return ((((unsigned_short_int_Array_0[1] == unsigned_short_int_Array_0[1]) ? (signed_short_int_Array_0[0] == ((signed short int) (unsigned_short_int_Array_0[1] + -16))) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[0] == ((signed short int) unsigned_short_int_Array_0[1])) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) last_1_signed_short_int_Array_0_0_)) : ((last_1_signed_short_int_Array_0_0_ <= last_1_signed_short_int_Array_0_0_) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((((last_1_unsigned_long_int_Array_0_1_) > ((unsigned_short_int_Array_0[0] - 8))) ? (last_1_unsigned_long_int_Array_0_1_) : ((unsigned_short_int_Array_0[0] - 8)))))) : 1))) && ((signed_short_int_Array_0[0] < unsigned_short_int_Array_0[1]) ? (float_Array_0[1][1] == ((float) (((10.25f + float_Array_0[1][0]) + float_Array_0[0][0]) + float_Array_0[0][1]))) : 1)) && ((last_1_unsigned_long_int_Array_0_1_ >= (unsigned_short_int_Array_0[1] & last_1_unsigned_long_int_Array_0_1_)) ? (unsigned_long_int_Array_0[1] == ((unsigned long int) ((((((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) < ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_))) ? (((((((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) < (unsigned_short_int_Array_0[0])) ? (((((50u) < (last_1_unsigned_long_int_Array_0_1_)) ? (50u) : (last_1_unsigned_long_int_Array_0_1_)))) : (unsigned_short_int_Array_0[0])))) : ((unsigned_long_int_Array_0[0] - last_1_unsigned_long_int_Array_0_1_)))))) : ((5.7 < float_Array_0[0][0]) ? (unsigned_long_int_Array_0[1] == ((unsigned long int) last_1_unsigned_long_int_Array_0_1_)) : (unsigned_long_int_Array_0[1] == ((unsigned long int) last_1_unsigned_long_int_Array_0_1_)))) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-5, last_1_unsigned_long_int_Array_0_1_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 1, TraceHistogramMax: 9, 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=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 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 [2023-11-24 23:20:16,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91 --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 f15b1832185bc6e5ed8ca3a7e02ddd56b37c4032577256d66dd546b8130db09b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:20:18,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:20:19,069 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:20:19,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:20:19,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:20:19,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:20:19,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:20:19,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:20:19,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:20:19,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:20:19,125 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:20:19,125 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:20:19,126 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:20:19,126 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:20:19,127 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:20:19,127 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:20:19,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:20:19,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:20:19,133 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:20:19,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:20:19,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:20:19,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:20:19,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:20:19,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:20:19,136 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:20:19,137 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:20:19,137 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:20:19,138 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:20:19,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:20:19,138 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:20:19,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:20:19,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:20:19,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:20:19,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:20:19,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:20:19,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:20:19,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:20:19,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:20:19,142 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:20:19,143 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:20:19,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:20:19,145 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:20:19,145 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:20:19,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:20:19,146 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_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f15b1832185bc6e5ed8ca3a7e02ddd56b37c4032577256d66dd546b8130db09b [2023-11-24 23:20:19,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:20:19,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:20:19,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:20:19,680 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:20:19,680 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:20:19,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i [2023-11-24 23:20:22,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:20:23,119 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:20:23,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i [2023-11-24 23:20:23,146 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/data/20670a524/22aad9e1c0ca4cea86297808bdbe1646/FLAG0c373b668 [2023-11-24 23:20:23,166 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/data/20670a524/22aad9e1c0ca4cea86297808bdbe1646 [2023-11-24 23:20:23,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:20:23,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:20:23,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:20:23,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:20:23,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:20:23,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8b9b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23, skipping insertion in model container [2023-11-24 23:20:23,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,229 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:20:23,437 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_f1dcdce9-daf6-48bd-a001-3a4292108113/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i[916,929] [2023-11-24 23:20:23,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:20:23,617 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:20:23,662 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_f1dcdce9-daf6-48bd-a001-3a4292108113/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-22.i[916,929] [2023-11-24 23:20:23,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:20:23,757 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:20:23,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23 WrapperNode [2023-11-24 23:20:23,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:20:23,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:20:23,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:20:23,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:20:23,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,848 INFO L138 Inliner]: procedures = 36, calls = 121, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 357 [2023-11-24 23:20:23,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:20:23,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:20:23,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:20:23,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:20:23,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:20:23,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:20:23,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:20:23,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:20:23,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (1/1) ... [2023-11-24 23:20:23,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:20:23,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:20:23,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:20:23,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:20:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:20:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:20:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-24 23:20:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:20:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-24 23:20:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-24 23:20:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:20:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-24 23:20:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 23:20:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-24 23:20:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:20:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:20:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:20:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:20:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-24 23:20:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-24 23:20:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:20:24,161 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:20:24,163 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:20:28,003 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:20:28,090 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:20:28,090 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:20:28,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:20:28 BoogieIcfgContainer [2023-11-24 23:20:28,091 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:20:28,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:20:28,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:20:28,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:20:28,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:20:23" (1/3) ... [2023-11-24 23:20:28,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ab2f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:20:28, skipping insertion in model container [2023-11-24 23:20:28,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:23" (2/3) ... [2023-11-24 23:20:28,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ab2f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:20:28, skipping insertion in model container [2023-11-24 23:20:28,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:20:28" (3/3) ... [2023-11-24 23:20:28,106 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-22.i [2023-11-24 23:20:28,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:20:28,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:20:28,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:20:28,185 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;@5577eaf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:20:28,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:20:28,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 80 states have (on average 1.4875) internal successors, (119), 81 states have internal predecessors, (119), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:20:28,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-24 23:20:28,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:28,205 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:28,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:28,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:28,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1836649689, now seen corresponding path program 1 times [2023-11-24 23:20:28,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:28,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769878406] [2023-11-24 23:20:28,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:28,228 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 [2023-11-24 23:20:28,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:28,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:28,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:28,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:20:28,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-24 23:20:28,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:28,751 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:28,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769878406] [2023-11-24 23:20:28,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769878406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:28,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:28,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:20:28,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200251379] [2023-11-24 23:20:28,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:28,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:20:28,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:28,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:20:28,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:20:28,790 INFO L87 Difference]: Start difference. First operand has 92 states, 80 states have (on average 1.4875) internal successors, (119), 81 states have internal predecessors, (119), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:28,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:28,864 INFO L93 Difference]: Finished difference Result 178 states and 276 transitions. [2023-11-24 23:20:28,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:20:28,867 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-24 23:20:28,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:28,876 INFO L225 Difference]: With dead ends: 178 [2023-11-24 23:20:28,876 INFO L226 Difference]: Without dead ends: 87 [2023-11-24 23:20:28,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:20:28,887 INFO L413 NwaCegarLoop]: 120 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, 120 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 [2023-11-24 23:20:28,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:20:28,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-24 23:20:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-24 23:20:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 76 states have (on average 1.394736842105263) internal successors, (106), 76 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:20:28,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2023-11-24 23:20:28,967 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 84 [2023-11-24 23:20:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:28,968 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2023-11-24 23:20:28,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:28,971 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2023-11-24 23:20:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-24 23:20:28,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:28,977 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:28,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:20:29,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:29,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:29,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:29,188 INFO L85 PathProgramCache]: Analyzing trace with hash 2138696593, now seen corresponding path program 1 times [2023-11-24 23:20:29,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:29,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624526958] [2023-11-24 23:20:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:29,189 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 [2023-11-24 23:20:29,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:29,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:29,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:29,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:20:29,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-24 23:20:29,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:29,678 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:29,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624526958] [2023-11-24 23:20:29,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624526958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:29,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:29,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:20:29,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279646996] [2023-11-24 23:20:29,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:29,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:20:29,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:29,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:20:29,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:20:29,683 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:20:29,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:29,835 INFO L93 Difference]: Finished difference Result 179 states and 256 transitions. [2023-11-24 23:20:29,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:20:29,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 87 [2023-11-24 23:20:29,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:29,838 INFO L225 Difference]: With dead ends: 179 [2023-11-24 23:20:29,838 INFO L226 Difference]: Without dead ends: 93 [2023-11-24 23:20:29,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:20:29,841 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 10 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:29,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 352 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:20:29,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-24 23:20:29,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2023-11-24 23:20:29,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.3846153846153846) internal successors, (108), 78 states have internal predecessors, (108), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:20:29,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2023-11-24 23:20:29,856 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 87 [2023-11-24 23:20:29,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:29,856 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2023-11-24 23:20:29,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:20:29,857 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2023-11-24 23:20:29,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-24 23:20:29,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:29,861 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:29,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:30,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:30,070 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:30,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:30,070 INFO L85 PathProgramCache]: Analyzing trace with hash -245228145, now seen corresponding path program 1 times [2023-11-24 23:20:30,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:30,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379955587] [2023-11-24 23:20:30,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:30,072 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 [2023-11-24 23:20:30,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:30,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:30,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:30,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 23:20:30,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:30,863 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 17 treesize of output 9 [2023-11-24 23:20:33,204 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 16 treesize of output 12 [2023-11-24 23:20:33,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2023-11-24 23:20:33,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2023-11-24 23:20:33,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2023-11-24 23:20:34,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 48 [2023-11-24 23:20:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:20:34,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:34,086 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:34,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379955587] [2023-11-24 23:20:34,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379955587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:34,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:34,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-24 23:20:34,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856775969] [2023-11-24 23:20:34,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:34,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 23:20:34,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:34,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 23:20:34,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:20:34,089 INFO L87 Difference]: Start difference. First operand 89 states and 126 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:41,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:20:41,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:41,659 INFO L93 Difference]: Finished difference Result 418 states and 585 transitions. [2023-11-24 23:20:41,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:20:41,660 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 87 [2023-11-24 23:20:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:41,669 INFO L225 Difference]: With dead ends: 418 [2023-11-24 23:20:41,670 INFO L226 Difference]: Without dead ends: 330 [2023-11-24 23:20:41,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:20:41,673 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 540 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:41,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 549 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-11-24 23:20:41,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-24 23:20:41,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 186. [2023-11-24 23:20:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 165 states have (on average 1.3818181818181818) internal successors, (228), 165 states have internal predecessors, (228), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 23:20:41,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 264 transitions. [2023-11-24 23:20:41,710 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 264 transitions. Word has length 87 [2023-11-24 23:20:41,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:41,711 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 264 transitions. [2023-11-24 23:20:41,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:41,712 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 264 transitions. [2023-11-24 23:20:41,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-24 23:20:41,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:41,715 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:41,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-24 23:20:41,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:41,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:41,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:41,925 INFO L85 PathProgramCache]: Analyzing trace with hash -41960913, now seen corresponding path program 1 times [2023-11-24 23:20:41,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:41,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935357105] [2023-11-24 23:20:41,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:41,926 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 [2023-11-24 23:20:41,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:41,928 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:41,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:42,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:20:42,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:42,431 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 17 treesize of output 9 [2023-11-24 23:20:42,719 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 16 treesize of output 12 [2023-11-24 23:20:42,761 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 33 treesize of output 15 [2023-11-24 23:20:42,799 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:20:42,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:42,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:42,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935357105] [2023-11-24 23:20:42,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935357105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:42,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:42,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:20:42,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910334850] [2023-11-24 23:20:42,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:42,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:20:42,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:42,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:20:42,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:20:42,802 INFO L87 Difference]: Start difference. First operand 186 states and 264 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:44,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:20:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:45,636 INFO L93 Difference]: Finished difference Result 379 states and 537 transitions. [2023-11-24 23:20:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:20:45,638 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 88 [2023-11-24 23:20:45,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:45,640 INFO L225 Difference]: With dead ends: 379 [2023-11-24 23:20:45,640 INFO L226 Difference]: Without dead ends: 194 [2023-11-24 23:20:45,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-24 23:20:45,643 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 86 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:45,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 473 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-24 23:20:45,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-24 23:20:45,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 146. [2023-11-24 23:20:45,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 125 states have (on average 1.36) internal successors, (170), 125 states have internal predecessors, (170), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 23:20:45,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 206 transitions. [2023-11-24 23:20:45,666 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 206 transitions. Word has length 88 [2023-11-24 23:20:45,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:45,667 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 206 transitions. [2023-11-24 23:20:45,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:45,667 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 206 transitions. [2023-11-24 23:20:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-24 23:20:45,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:45,670 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:45,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:45,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:45,880 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:45,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:45,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1078887405, now seen corresponding path program 1 times [2023-11-24 23:20:45,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:45,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020552578] [2023-11-24 23:20:45,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:45,882 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 [2023-11-24 23:20:45,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:45,885 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:45,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:46,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:20:46,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:20:46,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:46,306 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:46,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020552578] [2023-11-24 23:20:46,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020552578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:46,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:46,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:20:46,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268841524] [2023-11-24 23:20:46,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:46,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:20:46,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:46,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:20:46,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:20:46,310 INFO L87 Difference]: Start difference. First operand 146 states and 206 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:46,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:46,363 INFO L93 Difference]: Finished difference Result 234 states and 331 transitions. [2023-11-24 23:20:46,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:20:46,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 88 [2023-11-24 23:20:46,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:46,365 INFO L225 Difference]: With dead ends: 234 [2023-11-24 23:20:46,366 INFO L226 Difference]: Without dead ends: 146 [2023-11-24 23:20:46,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:20:46,368 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 24 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:46,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 208 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:20:46,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-24 23:20:46,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-11-24 23:20:46,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 125 states have (on average 1.352) internal successors, (169), 125 states have internal predecessors, (169), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 23:20:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 205 transitions. [2023-11-24 23:20:46,385 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 205 transitions. Word has length 88 [2023-11-24 23:20:46,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:46,386 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 205 transitions. [2023-11-24 23:20:46,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:46,386 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 205 transitions. [2023-11-24 23:20:46,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-24 23:20:46,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:46,388 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:46,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:46,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:46,597 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:46,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:46,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1042387596, now seen corresponding path program 1 times [2023-11-24 23:20:46,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:46,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997626348] [2023-11-24 23:20:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:46,599 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 [2023-11-24 23:20:46,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:46,600 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:46,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:47,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:20:47,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:47,300 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 17 treesize of output 9 [2023-11-24 23:20:48,979 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 14 treesize of output 10 [2023-11-24 23:20:49,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-24 23:20:49,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-24 23:20:49,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-24 23:20:49,626 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 51 treesize of output 33 [2023-11-24 23:20:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:20:49,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:49,732 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:49,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997626348] [2023-11-24 23:20:49,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997626348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:49,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:49,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 23:20:49,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009900826] [2023-11-24 23:20:49,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:49,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 23:20:49,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:49,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 23:20:49,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-24 23:20:49,735 INFO L87 Difference]: Start difference. First operand 146 states and 205 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:51,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:20:58,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:58,186 INFO L93 Difference]: Finished difference Result 328 states and 457 transitions. [2023-11-24 23:20:58,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 23:20:58,187 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2023-11-24 23:20:58,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:58,190 INFO L225 Difference]: With dead ends: 328 [2023-11-24 23:20:58,190 INFO L226 Difference]: Without dead ends: 240 [2023-11-24 23:20:58,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-11-24 23:20:58,192 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 264 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:58,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 494 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-11-24 23:20:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-24 23:20:58,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 154. [2023-11-24 23:20:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 133 states have (on average 1.3533834586466165) internal successors, (180), 133 states have internal predecessors, (180), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 23:20:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 216 transitions. [2023-11-24 23:20:58,212 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 216 transitions. Word has length 89 [2023-11-24 23:20:58,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:58,213 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 216 transitions. [2023-11-24 23:20:58,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:58,214 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 216 transitions. [2023-11-24 23:20:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-24 23:20:58,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:58,216 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:58,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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)] Ended with exit code 0 [2023-11-24 23:20:58,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:58,428 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:58,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:58,428 INFO L85 PathProgramCache]: Analyzing trace with hash -459402807, now seen corresponding path program 1 times [2023-11-24 23:20:58,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:58,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568310408] [2023-11-24 23:20:58,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:58,429 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 [2023-11-24 23:20:58,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:58,430 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:58,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:58,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:20:58,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:58,937 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 [2023-11-24 23:20:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:20:58,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:58,992 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:58,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568310408] [2023-11-24 23:20:58,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568310408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:58,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:58,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:20:58,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693562137] [2023-11-24 23:20:58,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:58,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:20:58,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:58,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:20:58,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:20:59,000 INFO L87 Difference]: Start difference. First operand 154 states and 216 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:59,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:59,070 INFO L93 Difference]: Finished difference Result 244 states and 342 transitions. [2023-11-24 23:20:59,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:20:59,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2023-11-24 23:20:59,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:59,074 INFO L225 Difference]: With dead ends: 244 [2023-11-24 23:20:59,074 INFO L226 Difference]: Without dead ends: 148 [2023-11-24 23:20:59,075 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 [2023-11-24 23:20:59,076 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 32 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:59,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 196 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:20:59,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-24 23:20:59,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-24 23:20:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 127 states have (on average 1.330708661417323) internal successors, (169), 127 states have internal predecessors, (169), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 23:20:59,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 205 transitions. [2023-11-24 23:20:59,096 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 205 transitions. Word has length 89 [2023-11-24 23:20:59,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:59,097 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 205 transitions. [2023-11-24 23:20:59,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:20:59,097 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 205 transitions. [2023-11-24 23:20:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-24 23:20:59,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:59,099 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:59,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:59,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:59,309 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:59,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash 9853112, now seen corresponding path program 1 times [2023-11-24 23:20:59,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:59,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367230585] [2023-11-24 23:20:59,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:59,311 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 [2023-11-24 23:20:59,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:59,313 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:59,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:59,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:20:59,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:21:00,224 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 18 treesize of output 10 [2023-11-24 23:21:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-24 23:21:00,297 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:21:00,755 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 23 treesize of output 15 [2023-11-24 23:21:00,872 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:21:00,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367230585] [2023-11-24 23:21:00,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367230585] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:21:00,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [151698476] [2023-11-24 23:21:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:00,874 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:21:00,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:21:00,875 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:21:00,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1dcdce9-daf6-48bd-a001-3a4292108113/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process