./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX --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 55037b62375e05a5c79aaa8d2ac5e5451bfc132363388b25e1fdb93ff36dc22a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:09:56,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:09:57,070 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:09:57,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:09:57,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:09:57,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:09:57,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:09:57,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:09:57,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:09:57,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:09:57,136 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:09:57,137 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:09:57,137 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:09:57,139 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:09:57,140 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:09:57,140 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:09:57,140 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:09:57,141 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:09:57,141 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:09:57,142 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:09:57,142 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:09:57,143 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:09:57,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:09:57,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:09:57,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:09:57,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:09:57,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:09:57,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:09:57,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:09:57,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:09:57,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:09:57,150 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:09:57,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:09:57,150 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:09:57,150 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:09:57,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:09:57,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:09:57,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:09:57,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:09:57,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:09:57,152 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:09:57,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:09:57,153 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:09:57,153 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:09:57,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:09:57,154 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_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55037b62375e05a5c79aaa8d2ac5e5451bfc132363388b25e1fdb93ff36dc22a [2023-11-12 00:09:57,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:09:57,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:09:57,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:09:57,531 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:09:57,531 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:09:57,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i [2023-11-12 00:10:00,770 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:01,013 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:01,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i [2023-11-12 00:10:01,024 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/data/f5e4fd532/c88a816533a94675a5c1d8498739626f/FLAG0540fe186 [2023-11-12 00:10:01,346 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/data/f5e4fd532/c88a816533a94675a5c1d8498739626f [2023-11-12 00:10:01,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:01,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:01,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:01,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:01,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:01,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2415ef65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01, skipping insertion in model container [2023-11-12 00:10:01,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,395 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:01,535 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_142a1bf8-b65c-4f97-affc-292fb656d24a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i[912,925] [2023-11-12 00:10:01,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:01,589 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:01,603 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_142a1bf8-b65c-4f97-affc-292fb656d24a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i[912,925] [2023-11-12 00:10:01,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:01,646 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:01,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01 WrapperNode [2023-11-12 00:10:01,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:01,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:01,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:01,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:01,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,703 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-12 00:10:01,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:01,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:01,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:01,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:01,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:01,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:01,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:01,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:01,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (1/1) ... [2023-11-12 00:10:01,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:01,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:01,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:01,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:10:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:10:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:01,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:01,961 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:01,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:02,296 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:02,550 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:02,551 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:10:02,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:02 BoogieIcfgContainer [2023-11-12 00:10:02,554 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:02,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:02,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:02,561 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:02,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:01" (1/3) ... [2023-11-12 00:10:02,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba5b9bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:02, skipping insertion in model container [2023-11-12 00:10:02,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:01" (2/3) ... [2023-11-12 00:10:02,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba5b9bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:02, skipping insertion in model container [2023-11-12 00:10:02,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:02" (3/3) ... [2023-11-12 00:10:02,564 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-9.i [2023-11-12 00:10:02,586 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:02,586 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:10:02,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:02,642 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;@7f7fccf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:02,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:10:02,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:10:02,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:10:02,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:02,657 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:02,657 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:02,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:02,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1309874706, now seen corresponding path program 1 times [2023-11-12 00:10:02,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:02,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025703628] [2023-11-12 00:10:02,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:02,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:02,831 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:10:02,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796975307] [2023-11-12 00:10:02,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:02,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:02,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:02,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:02,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:10:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:10:03,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:10:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:10:03,152 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:10:03,155 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:10:03,156 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:10:03,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:03,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:10:03,372 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:10:03,376 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:10:03,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:10:03 BoogieIcfgContainer [2023-11-12 00:10:03,416 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:10:03,418 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:10:03,418 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:10:03,419 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:10:03,419 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:02" (3/4) ... [2023-11-12 00:10:03,421 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:10:03,423 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:10:03,424 INFO L158 Benchmark]: Toolchain (without parser) took 2073.35ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 94.9MB in the beginning and 122.9MB in the end (delta: -28.0MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2023-11-12 00:10:03,425 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 82.6MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:03,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.70ms. Allocated memory is still 134.2MB. Free memory was 94.9MB in the beginning and 83.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:10:03,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.41ms. Allocated memory is still 134.2MB. Free memory was 83.0MB in the beginning and 80.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:03,435 INFO L158 Benchmark]: Boogie Preprocessor took 45.54ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 79.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:03,435 INFO L158 Benchmark]: RCFGBuilder took 803.60ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 78.8MB in the beginning and 149.2MB in the end (delta: -70.4MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-11-12 00:10:03,436 INFO L158 Benchmark]: TraceAbstraction took 858.97ms. Allocated memory is still 184.5MB. Free memory was 148.1MB in the beginning and 122.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 00:10:03,436 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 184.5MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:03,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 82.6MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.70ms. Allocated memory is still 134.2MB. Free memory was 94.9MB in the beginning and 83.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.41ms. Allocated memory is still 134.2MB. Free memory was 83.0MB in the beginning and 80.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.54ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 79.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 803.60ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 78.8MB in the beginning and 149.2MB in the end (delta: -70.4MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * TraceAbstraction took 858.97ms. Allocated memory is still 184.5MB. Free memory was 148.1MB in the beginning and 122.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 184.5MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of shiftLeft at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 10; [L23] unsigned char var_1_3 = 4; [L24] unsigned char var_1_7 = 0; [L25] signed short int var_1_8 = 100; [L26] unsigned char var_1_9 = 32; [L27] double var_1_10 = 9.2; [L28] double var_1_11 = 0.975; [L29] signed short int var_1_12 = 1; [L30] signed long int var_1_14 = -16; [L31] unsigned char last_1_var_1_1 = 10; [L32] double last_1_var_1_10 = 9.2; [L33] signed short int last_1_var_1_12 = 1; [L34] signed long int last_1_var_1_14 = -16; [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L75] last_1_var_1_1 = var_1_1 [L76] last_1_var_1_10 = var_1_10 [L77] last_1_var_1_12 = var_1_12 [L78] last_1_var_1_14 = var_1_14 [L88] RET updateLastVariables() [L89] CALL updateVariables() [L65] var_1_3 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L67] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=254, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=254, var_1_7=0, var_1_8=100, var_1_9=32] [L68] var_1_7 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=254, var_1_7=1, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=254, var_1_7=1, var_1_8=100, var_1_9=32] [L70] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=254, var_1_7=1, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=254, var_1_7=1, var_1_8=100, var_1_9=32] [L71] var_1_11 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=2, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=254, var_1_7=1, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=2, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=254, var_1_7=1, var_1_8=100, var_1_9=32] [L89] RET updateVariables() [L90] CALL step() [L38] unsigned char stepLocal_0 = last_1_var_1_10 > last_1_var_1_10; [L39] COND TRUE ((last_1_var_1_12 + last_1_var_1_1) < 10) || stepLocal_0 [L40] var_1_12 = ((((((var_1_3 + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) > (last_1_var_1_1)) ? (((var_1_3 + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) : (last_1_var_1_1))) [L44] var_1_14 = var_1_12 [L45] EXPR 10 << var_1_12 [L45] COND TRUE (10 << var_1_12) < (var_1_3 * var_1_14) [L46] var_1_8 = (var_1_12 + var_1_14) [L48] var_1_9 = 64 [L49] var_1_10 = var_1_11 [L50] COND FALSE !(var_1_12 <= 16) [L53] COND FALSE !(((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10))) < var_1_10) [L60] var_1_1 = var_1_3 [L90] RET step() [L91] CALL, EXPR property() [L81] EXPR ((var_1_12 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10))) < var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_12) < (var_1_3 * var_1_14)) ? (var_1_8 == ((signed short int) (var_1_12 + var_1_14))) : 1) [L81] EXPR 10 << var_1_12 [L81] EXPR ((var_1_12 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10))) < var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_12) < (var_1_3 * var_1_14)) ? (var_1_8 == ((signed short int) (var_1_12 + var_1_14))) : 1) [L81-L82] return ((((((var_1_12 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10))) < var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_12) < (var_1_3 * var_1_14)) ? (var_1_8 == ((signed short int) (var_1_12 + var_1_14))) : 1)) && (var_1_9 == ((unsigned char) 64))) && (var_1_10 == ((double) var_1_11))) && ((((last_1_var_1_12 + last_1_var_1_1) < 10) || (last_1_var_1_10 > last_1_var_1_10)) ? (var_1_12 == ((signed short int) ((((((var_1_3 + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) > (last_1_var_1_1)) ? (((var_1_3 + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) : (last_1_var_1_1))))) : (var_1_12 == ((signed short int) last_1_var_1_12)))) && (var_1_14 == ((signed long int) var_1_12)) ; [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=2, var_1_11=2, var_1_12=254, var_1_14=254, var_1_1=254, var_1_3=254, var_1_7=1, var_1_8=508, var_1_9=64] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=2, var_1_11=2, var_1_12=254, var_1_14=254, var_1_1=254, var_1_3=254, var_1_7=1, var_1_8=508, var_1_9=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 5, 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=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 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 [2023-11-12 00:10:03,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX --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 55037b62375e05a5c79aaa8d2ac5e5451bfc132363388b25e1fdb93ff36dc22a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:06,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:06,260 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:10:06,269 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:06,270 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:06,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:06,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:06,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:06,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:06,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:06,322 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:06,322 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:06,323 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:06,325 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:06,325 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:06,325 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:06,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:06,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:06,328 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:06,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:06,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:06,329 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:06,329 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:06,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:06,330 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:10:06,331 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:10:06,331 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:10:06,331 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:06,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:06,332 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:06,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:06,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:10:06,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:06,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:06,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:06,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:06,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:06,336 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:10:06,336 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:10:06,337 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:06,337 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:06,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:06,338 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_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55037b62375e05a5c79aaa8d2ac5e5451bfc132363388b25e1fdb93ff36dc22a [2023-11-12 00:10:06,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:06,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:06,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:06,846 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:06,847 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:06,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i [2023-11-12 00:10:09,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:10,190 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:10,190 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i [2023-11-12 00:10:10,199 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/data/9c72c93cc/d692e9942e634e96aaea7cca2519abab/FLAGfd1b33198 [2023-11-12 00:10:10,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/data/9c72c93cc/d692e9942e634e96aaea7cca2519abab [2023-11-12 00:10:10,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:10,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:10,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:10,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:10,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:10,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2315540f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10, skipping insertion in model container [2023-11-12 00:10:10,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,251 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:10,406 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_142a1bf8-b65c-4f97-affc-292fb656d24a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i[912,925] [2023-11-12 00:10:10,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:10,484 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:10,504 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_142a1bf8-b65c-4f97-affc-292fb656d24a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-9.i[912,925] [2023-11-12 00:10:10,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:10,570 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:10,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10 WrapperNode [2023-11-12 00:10:10,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:10,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:10,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:10,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:10,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,643 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2023-11-12 00:10:10,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:10,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:10,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:10,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:10,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:10,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:10,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:10,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:10,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (1/1) ... [2023-11-12 00:10:10,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:10,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:10,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:10,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:10:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:10:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:10:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:10,978 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:10,981 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:11,250 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:11,258 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:11,258 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:10:11,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:11 BoogieIcfgContainer [2023-11-12 00:10:11,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:11,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:11,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:11,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:11,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:10" (1/3) ... [2023-11-12 00:10:11,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72fd35d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:11, skipping insertion in model container [2023-11-12 00:10:11,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:10" (2/3) ... [2023-11-12 00:10:11,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72fd35d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:11, skipping insertion in model container [2023-11-12 00:10:11,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:11" (3/3) ... [2023-11-12 00:10:11,270 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-9.i [2023-11-12 00:10:11,292 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:11,292 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:10:11,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:11,351 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;@66d6c246, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:11,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:10:11,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:10:11,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-12 00:10:11,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:11,368 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:11,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:11,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:11,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1278231313, now seen corresponding path program 1 times [2023-11-12 00:10:11,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:10:11,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714145272] [2023-11-12 00:10:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:11,396 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 [2023-11-12 00:10:11,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:10:11,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:10:11,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:11,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:10:11,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:11,672 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 00:10:11,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:10:11,677 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:10:11,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714145272] [2023-11-12 00:10:11,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714145272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:11,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:11,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:10:11,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87083221] [2023-11-12 00:10:11,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:11,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:10:11,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:10:11,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:10:11,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:10:11,736 INFO L87 Difference]: Start difference. First operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 00:10:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:11,768 INFO L93 Difference]: Finished difference Result 60 states and 89 transitions. [2023-11-12 00:10:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:10:11,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2023-11-12 00:10:11,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:11,797 INFO L225 Difference]: With dead ends: 60 [2023-11-12 00:10:11,798 INFO L226 Difference]: Without dead ends: 29 [2023-11-12 00:10:11,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:10:11,807 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:11,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:10:11,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-12 00:10:11,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-12 00:10:11,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:10:11,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2023-11-12 00:10:11,857 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 42 [2023-11-12 00:10:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:11,858 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2023-11-12 00:10:11,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 00:10:11,860 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2023-11-12 00:10:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-12 00:10:11,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:11,864 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:11,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:12,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:12,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:12,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:12,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1952905197, now seen corresponding path program 1 times [2023-11-12 00:10:12,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:10:12,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951892136] [2023-11-12 00:10:12,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:12,082 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 [2023-11-12 00:10:12,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:10:12,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:10:12,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:12,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:10:12,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-12 00:10:12,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:10:12,747 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:10:12,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951892136] [2023-11-12 00:10:12,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951892136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:12,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:12,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:10:12,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749146123] [2023-11-12 00:10:12,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:12,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:10:12,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:10:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:10:12,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:10:12,752 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-12 00:10:13,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:13,030 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2023-11-12 00:10:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:10:13,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2023-11-12 00:10:13,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:13,033 INFO L225 Difference]: With dead ends: 81 [2023-11-12 00:10:13,033 INFO L226 Difference]: Without dead ends: 55 [2023-11-12 00:10:13,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:10:13,037 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 32 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:13,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 94 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:10:13,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-12 00:10:13,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2023-11-12 00:10:13,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 00:10:13,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2023-11-12 00:10:13,062 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 42 [2023-11-12 00:10:13,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:13,063 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2023-11-12 00:10:13,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-12 00:10:13,063 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2023-11-12 00:10:13,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-12 00:10:13,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:13,069 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:13,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:13,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:13,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:13,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:13,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1272846827, now seen corresponding path program 1 times [2023-11-12 00:10:13,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:10:13,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20245021] [2023-11-12 00:10:13,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:13,290 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 [2023-11-12 00:10:13,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:10:13,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:10:13,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142a1bf8-b65c-4f97-affc-292fb656d24a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:13,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-12 00:10:13,437 INFO L285 TraceCheckSpWp]: Computing forward predicates...