./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1909061afd980a39396ef4a3c6a4eb0a48d7b8752c9988e586de4638f163afa1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:11:28,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:11:28,501 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:11:28,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:11:28,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:11:28,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:11:28,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:11:28,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:11:28,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:11:28,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:11:28,556 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:11:28,557 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:11:28,557 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:11:28,558 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:11:28,558 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:11:28,559 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:11:28,560 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:11:28,560 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:11:28,561 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:11:28,561 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:11:28,562 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:11:28,563 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:11:28,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:11:28,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:11:28,564 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:11:28,565 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:11:28,565 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:11:28,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:11:28,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:11:28,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:11:28,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:11:28,567 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:11:28,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:11:28,576 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:11:28,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:11:28,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:11:28,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:28,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:11:28,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:11:28,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:11:28,579 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:11:28,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:11:28,580 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:11:28,580 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:11:28,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:11:28,580 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_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1909061afd980a39396ef4a3c6a4eb0a48d7b8752c9988e586de4638f163afa1 [2023-11-19 04:11:28,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:11:28,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:11:28,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:11:28,939 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:11:28,942 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:11:28,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i [2023-11-19 04:11:31,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:11:32,221 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:11:32,221 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i [2023-11-19 04:11:32,234 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/data/6e799670a/c683af617df44a0ca77411eb99659251/FLAG4a9bd0d85 [2023-11-19 04:11:32,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/data/6e799670a/c683af617df44a0ca77411eb99659251 [2023-11-19 04:11:32,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:11:32,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:11:32,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:32,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:11:32,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:11:32,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3c0209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32, skipping insertion in model container [2023-11-19 04:11:32,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,319 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:32,465 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_468ead7a-28e8-48b1-84a7-f55caab55999/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i[916,929] [2023-11-19 04:11:32,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:32,539 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:11:32,551 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_468ead7a-28e8-48b1-84a7-f55caab55999/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i[916,929] [2023-11-19 04:11:32,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:32,635 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:11:32,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32 WrapperNode [2023-11-19 04:11:32,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:32,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:32,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:11:32,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:11:32,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,715 INFO L138 Inliner]: procedures = 29, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2023-11-19 04:11:32,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:32,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:11:32,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:11:32,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:11:32,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:11:32,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:11:32,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:11:32,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:11:32,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (1/1) ... [2023-11-19 04:11:32,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:32,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:11:32,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:11:32,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:11:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:11:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:11:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 04:11:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 04:11:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:11:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 04:11:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:11:32,868 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:11:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:11:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:11:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:11:33,087 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:11:33,089 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:11:33,650 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:11:34,387 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:11:34,387 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:11:34,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:34 BoogieIcfgContainer [2023-11-19 04:11:34,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:11:34,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:11:34,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:11:34,403 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:11:34,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:11:32" (1/3) ... [2023-11-19 04:11:34,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f6f90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:34, skipping insertion in model container [2023-11-19 04:11:34,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:32" (2/3) ... [2023-11-19 04:11:34,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f6f90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:34, skipping insertion in model container [2023-11-19 04:11:34,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:34" (3/3) ... [2023-11-19 04:11:34,410 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-65.i [2023-11-19 04:11:34,430 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:11:34,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:11:34,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:11:34,499 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;@8410311, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:11:34,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:11:34,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 04:11:34,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 04:11:34,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:34,512 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:34,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:34,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1927599297, now seen corresponding path program 1 times [2023-11-19 04:11:34,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:11:34,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773730680] [2023-11-19 04:11:34,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:34,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:11:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:11:36,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:11:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:11:36,951 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:11:36,954 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:11:36,956 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:11:36,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:11:36,963 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:11:36,968 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:11:37,036 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-19 04:11:37,038 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-19 04:11:37,038 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-19 04:11:37,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-19 04:11:37,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 04:11:37,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-19 04:11:37,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated [2023-11-19 04:11:37,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-19 04:11:37,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-19 04:11:37,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-19 04:11:37,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-11-19 04:11:37,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-19 04:11:37,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 04:11:37,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-19 04:11:37,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-19 04:11:37,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated [2023-11-19 04:11:37,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-11-19 04:11:37,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-19 04:11:37,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-11-19 04:11:37,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-11-19 04:11:37,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-19 04:11:37,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-11-19 04:11:37,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-19 04:11:37,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-19 04:11:37,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-19 04:11:37,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-11-19 04:11:37,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-19 04:11:37,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-19 04:11:37,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-19 04:11:37,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-19 04:11:37,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-11-19 04:11:37,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-11-19 04:11:37,056 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated [2023-11-19 04:11:37,057 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-19 04:11:37,057 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-19 04:11:37,058 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-19 04:11:37,058 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-19 04:11:37,058 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 04:11:37,059 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated [2023-11-19 04:11:37,059 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-19 04:11:37,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 04:11:37,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-19 04:11:37,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-19 04:11:37,061 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-19 04:11:37,061 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated [2023-11-19 04:11:37,061 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated [2023-11-19 04:11:37,062 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short66 could not be translated [2023-11-19 04:11:37,062 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-19 04:11:37,062 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-19 04:11:37,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-19 04:11:37,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-11-19 04:11:37,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-19 04:11:37,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated [2023-11-19 04:11:37,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-19 04:11:37,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-11-19 04:11:37,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short66 could not be translated [2023-11-19 04:11:37,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated [2023-11-19 04:11:37,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-19 04:11:37,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-19 04:11:37,070 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-19 04:11:37,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-19 04:11:37,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-19 04:11:37,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-11-19 04:11:37,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short78 could not be translated [2023-11-19 04:11:37,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated [2023-11-19 04:11:37,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-19 04:11:37,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated [2023-11-19 04:11:37,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-19 04:11:37,076 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-11-19 04:11:37,076 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated [2023-11-19 04:11:37,077 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short78 could not be translated [2023-11-19 04:11:37,077 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-19 04:11:37,078 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-19 04:11:37,078 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated [2023-11-19 04:11:37,079 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated [2023-11-19 04:11:37,081 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated [2023-11-19 04:11:37,081 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated [2023-11-19 04:11:37,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated [2023-11-19 04:11:37,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-19 04:11:37,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-19 04:11:37,086 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-19 04:11:37,087 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-19 04:11:37,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:11:37 BoogieIcfgContainer [2023-11-19 04:11:37,108 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:11:37,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:11:37,109 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:11:37,109 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:11:37,109 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:34" (3/4) ... [2023-11-19 04:11:37,112 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:11:37,113 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:11:37,115 INFO L158 Benchmark]: Toolchain (without parser) took 4861.84ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 139.3MB in the beginning and 197.7MB in the end (delta: -58.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-11-19 04:11:37,115 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:11:37,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.95ms. Allocated memory is still 172.0MB. Free memory was 139.1MB in the beginning and 128.1MB in the end (delta: 11.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-11-19 04:11:37,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.29ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 124.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:11:37,117 INFO L158 Benchmark]: Boogie Preprocessor took 59.84ms. Allocated memory is still 172.0MB. Free memory was 124.2MB in the beginning and 121.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:11:37,118 INFO L158 Benchmark]: RCFGBuilder took 1618.52ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 120.8MB in the beginning and 103.4MB in the end (delta: 17.4MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2023-11-19 04:11:37,119 INFO L158 Benchmark]: TraceAbstraction took 2709.78ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 103.4MB in the beginning and 197.7MB in the end (delta: -94.3MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2023-11-19 04:11:37,119 INFO L158 Benchmark]: Witness Printer took 4.71ms. Allocated memory is still 249.6MB. Free memory is still 197.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:11:37,123 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.95ms. Allocated memory is still 172.0MB. Free memory was 139.1MB in the beginning and 128.1MB in the end (delta: 11.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.29ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 124.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.84ms. Allocated memory is still 172.0MB. Free memory was 124.2MB in the beginning and 121.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1618.52ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 120.8MB in the beginning and 103.4MB in the end (delta: 17.4MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2709.78ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 103.4MB in the beginning and 197.7MB in the end (delta: -94.3MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * Witness Printer took 4.71ms. Allocated memory is still 249.6MB. Free memory is still 197.7MB. 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~mem37 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~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 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 49, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60, overapproximation of someBinaryDOUBLEComparisonOperation at line 44, overapproximation of someUnaryFLOAToperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 1 }; [L25-L27] double double_Array_0[5] = { 25.25, 100.5, 63.6, 0.0, 0.8 }; [L28-L30] float float_Array_0[2] = { 8.2, 1000000000.1 }; [L31-L33] signed char signed_char_Array_0[2] = { -8, 8 }; [L34-L36] signed long int signed_long_int_Array_0[1] = { -32 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[3] = { 0, 2, 50 }; [L40] double last_1_double_Array_0_1_ = 100.5; [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] CALL updateLastVariables() [L89] EXPR double_Array_0[1] [L89] last_1_double_Array_0_1_ = double_Array_0[1] [L99] RET updateLastVariables() [L100] CALL updateVariables() [L68] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L69] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L69] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L70] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L71] double_Array_0[0] = __VERIFIER_nondet_double() [L72] EXPR double_Array_0[0] [L72] EXPR double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F [L72] EXPR (double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F ) [L72] EXPR double_Array_0[0] [L72] EXPR double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F [L72] EXPR double_Array_0[0] [L72] EXPR double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F [L72] EXPR (double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L72] CALL assume_abort_if_not((double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] double_Array_0[2] = __VERIFIER_nondet_double() [L74] EXPR double_Array_0[2] [L74] EXPR double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F [L74] EXPR (double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 9223372.036854765600e+12F && double_Array_0[2] >= 1.0e-20F ) [L74] EXPR double_Array_0[2] [L74] EXPR double_Array_0[2] <= 9223372.036854765600e+12F && double_Array_0[2] >= 1.0e-20F [L74] EXPR double_Array_0[2] [L74] EXPR double_Array_0[2] <= 9223372.036854765600e+12F && double_Array_0[2] >= 1.0e-20F [L74] EXPR (double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 9223372.036854765600e+12F && double_Array_0[2] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] CALL assume_abort_if_not((double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 9223372.036854765600e+12F && double_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 9223372.036854765600e+12F && double_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] double_Array_0[3] = __VERIFIER_nondet_double() [L76] EXPR double_Array_0[3] [L76] EXPR double_Array_0[3] >= 4611686.018427382800e+12F && double_Array_0[3] <= -1.0e-20F [L76] EXPR (double_Array_0[3] >= 4611686.018427382800e+12F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F ) [L76] EXPR double_Array_0[3] [L76] EXPR double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F [L76] EXPR double_Array_0[3] [L76] EXPR double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F [L76] EXPR (double_Array_0[3] >= 4611686.018427382800e+12F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] CALL assume_abort_if_not((double_Array_0[3] >= 4611686.018427382800e+12F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((double_Array_0[3] >= 4611686.018427382800e+12F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] double_Array_0[4] = __VERIFIER_nondet_double() [L78] EXPR double_Array_0[4] [L78] EXPR double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F [L78] EXPR double_Array_0[4] [L78] EXPR double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F [L78] EXPR (double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 4611686.018427382800e+12F && double_Array_0[4] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] CALL assume_abort_if_not((double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 4611686.018427382800e+12F && double_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 4611686.018427382800e+12F && double_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L79] float_Array_0[0] = __VERIFIER_nondet_float() [L80] EXPR float_Array_0[0] [L80] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L80] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) [L80] EXPR float_Array_0[0] [L80] EXPR float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F [L80] EXPR float_Array_0[0] [L80] EXPR float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F [L80] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] signed_char_Array_0[1] = __VERIFIER_nondet_char() [L82] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] CALL assume_abort_if_not(signed_char_Array_0[1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(signed_char_Array_0[1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] CALL assume_abort_if_not(signed_char_Array_0[1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(signed_char_Array_0[1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] unsigned_short_int_Array_0[2] = __VERIFIER_nondet_ushort() [L85] EXPR unsigned_short_int_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] CALL assume_abort_if_not(unsigned_short_int_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(unsigned_short_int_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] EXPR unsigned_short_int_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] CALL assume_abort_if_not(unsigned_short_int_Array_0[2] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(unsigned_short_int_Array_0[2] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L100] RET updateVariables() [L101] CALL step() [L44] COND TRUE 0.625f > last_1_double_Array_0_1_ [L45] BOOL_unsigned_char_Array_0[0] [L45] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L51] EXPR signed_char_Array_0[1] [L51] signed_char_Array_0[0] = signed_char_Array_0[1] [L52] EXPR unsigned_short_int_Array_0[2] [L52] unsigned_short_int_Array_0[1] = unsigned_short_int_Array_0[2] [L53] EXPR unsigned_short_int_Array_0[2] [L53] unsigned_short_int_Array_0[0] = unsigned_short_int_Array_0[2] [L54] BOOL_unsigned_char_Array_0[0] [L54] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L59] EXPR float_Array_0[1] [L59] EXPR float_Array_0[1] [L59] COND TRUE float_Array_0[1] <= float_Array_0[1] [L60] EXPR double_Array_0[2] [L60] EXPR double_Array_0[3] [L60] EXPR double_Array_0[4] [L60] double_Array_0[1] = (double_Array_0[2] - (double_Array_0[3] - double_Array_0[4])) [L63] EXPR float_Array_0[0] [L63] EXPR double_Array_0[1] [L63] COND TRUE float_Array_0[0] > double_Array_0[1] [L64] EXPR unsigned_short_int_Array_0[0] [L64] EXPR ((unsigned_short_int_Array_0[0]) > (-64)) ? (unsigned_short_int_Array_0[0]) : (-64) [L64] EXPR unsigned_short_int_Array_0[0] [L64] EXPR ((unsigned_short_int_Array_0[0]) > (-64)) ? (unsigned_short_int_Array_0[0]) : (-64) [L64] EXPR unsigned_short_int_Array_0[0] [L64] EXPR unsigned_short_int_Array_0[1] [L64] signed_long_int_Array_0[0] = (((((unsigned_short_int_Array_0[0]) > (-64)) ? (unsigned_short_int_Array_0[0]) : (-64))) + ((unsigned_short_int_Array_0[0] + -2) + unsigned_short_int_Array_0[1])) [L101] RET step() [L102] CALL, EXPR property() [L92] EXPR (0.625f > last_1_double_Array_0_1_) ? (BOOL_unsigned_char_Array_0[0] ? (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) : 1) : (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) [L92] EXPR float_Array_0[1] [L92] EXPR float_Array_0[0] [L92] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) [L92] EXPR float_Array_0[0] [L92] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) [L92] EXPR (0.625f > last_1_double_Array_0_1_) ? (BOOL_unsigned_char_Array_0[0] ? (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) : 1) : (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) [L92] EXPR ((0.625f > last_1_double_Array_0_1_) ? (BOOL_unsigned_char_Array_0[0] ? (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) : 1) : (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0])))))) && ((float_Array_0[0] > double_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_short_int_Array_0[0]) > (-64)) ? (unsigned_short_int_Array_0[0]) : (-64))) + ((unsigned_short_int_Array_0[0] + -2) + unsigned_short_int_Array_0[1])))) : 1) [L92] EXPR (((0.625f > last_1_double_Array_0_1_) ? (BOOL_unsigned_char_Array_0[0] ? (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) : 1) : (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0])))))) && ((float_Array_0[0] > double_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_short_int_Array_0[0]) > (-64)) ? (unsigned_short_int_Array_0[0]) : (-64))) + ((unsigned_short_int_Array_0[0] + -2) + unsigned_short_int_Array_0[1])))) : 1)) && (BOOL_unsigned_char_Array_0[0] ? ((unsigned_short_int_Array_0[0] >= ((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) * 64)) ? (double_Array_0[1] == ((double) (((((double_Array_0[0]) < (50.5)) ? (double_Array_0[0]) : (50.5))) - double_Array_0[2]))) : 1) : ((float_Array_0[1] <= float_Array_0[1]) ? (double_Array_0[1] == ((double) (double_Array_0[2] - (double_Array_0[3] - double_Array_0[4])))) : 1)) [L92] EXPR ((((0.625f > last_1_double_Array_0_1_) ? (BOOL_unsigned_char_Array_0[0] ? (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) : 1) : (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0])))))) && ((float_Array_0[0] > double_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_short_int_Array_0[0]) > (-64)) ? (unsigned_short_int_Array_0[0]) : (-64))) + ((unsigned_short_int_Array_0[0] + -2) + unsigned_short_int_Array_0[1])))) : 1)) && (BOOL_unsigned_char_Array_0[0] ? ((unsigned_short_int_Array_0[0] >= ((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) * 64)) ? (double_Array_0[1] == ((double) (((((double_Array_0[0]) < (50.5)) ? (double_Array_0[0]) : (50.5))) - double_Array_0[2]))) : 1) : ((float_Array_0[1] <= float_Array_0[1]) ? (double_Array_0[1] == ((double) (double_Array_0[2] - (double_Array_0[3] - double_Array_0[4])))) : 1))) && (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])) [L92] EXPR (((((0.625f > last_1_double_Array_0_1_) ? (BOOL_unsigned_char_Array_0[0] ? (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) : 1) : (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0])))))) && ((float_Array_0[0] > double_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_short_int_Array_0[0]) > (-64)) ? (unsigned_short_int_Array_0[0]) : (-64))) + ((unsigned_short_int_Array_0[0] + -2) + unsigned_short_int_Array_0[1])))) : 1)) && (BOOL_unsigned_char_Array_0[0] ? ((unsigned_short_int_Array_0[0] >= ((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) * 64)) ? (double_Array_0[1] == ((double) (((((double_Array_0[0]) < (50.5)) ? (double_Array_0[0]) : (50.5))) - double_Array_0[2]))) : 1) : ((float_Array_0[1] <= float_Array_0[1]) ? (double_Array_0[1] == ((double) (double_Array_0[2] - (double_Array_0[3] - double_Array_0[4])))) : 1))) && (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1]))) && (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[2])) [L92] EXPR ((((((0.625f > last_1_double_Array_0_1_) ? (BOOL_unsigned_char_Array_0[0] ? (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) : 1) : (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0])))))) && ((float_Array_0[0] > double_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_short_int_Array_0[0]) > (-64)) ? (unsigned_short_int_Array_0[0]) : (-64))) + ((unsigned_short_int_Array_0[0] + -2) + unsigned_short_int_Array_0[1])))) : 1)) && (BOOL_unsigned_char_Array_0[0] ? ((unsigned_short_int_Array_0[0] >= ((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) * 64)) ? (double_Array_0[1] == ((double) (((((double_Array_0[0]) < (50.5)) ? (double_Array_0[0]) : (50.5))) - double_Array_0[2]))) : 1) : ((float_Array_0[1] <= float_Array_0[1]) ? (double_Array_0[1] == ((double) (double_Array_0[2] - (double_Array_0[3] - double_Array_0[4])))) : 1))) && (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1]))) && (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[2]))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[2])) [L92-L93] return ((((((0.625f > last_1_double_Array_0_1_) ? (BOOL_unsigned_char_Array_0[0] ? (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))))) : 1) : (float_Array_0[1] == ((float) ((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0])))))) && ((float_Array_0[0] > double_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_short_int_Array_0[0]) > (-64)) ? (unsigned_short_int_Array_0[0]) : (-64))) + ((unsigned_short_int_Array_0[0] + -2) + unsigned_short_int_Array_0[1])))) : 1)) && (BOOL_unsigned_char_Array_0[0] ? ((unsigned_short_int_Array_0[0] >= ((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) * 64)) ? (double_Array_0[1] == ((double) (((((double_Array_0[0]) < (50.5)) ? (double_Array_0[0]) : (50.5))) - double_Array_0[2]))) : 1) : ((float_Array_0[1] <= float_Array_0[1]) ? (double_Array_0[1] == ((double) (double_Array_0[2] - (double_Array_0[3] - double_Array_0[4])))) : 1))) && (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1]))) && (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[2]))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[2])) ; [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, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_double_Array_0_1_=201/2, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 1, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:11:37,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/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_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1909061afd980a39396ef4a3c6a4eb0a48d7b8752c9988e586de4638f163afa1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:11:39,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:11:40,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:11:40,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:11:40,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:11:40,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:11:40,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:11:40,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:11:40,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:11:40,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:11:40,068 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:11:40,069 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:11:40,070 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:11:40,070 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:11:40,071 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:11:40,071 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:11:40,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:11:40,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:11:40,073 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:11:40,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:11:40,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:11:40,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:11:40,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:11:40,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:11:40,076 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:11:40,076 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:11:40,077 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:11:40,077 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:11:40,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:11:40,078 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:11:40,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:11:40,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:11:40,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:11:40,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:40,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:11:40,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:11:40,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:11:40,080 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:11:40,080 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:40,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:11:40,081 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:11:40,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:11:40,081 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_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1909061afd980a39396ef4a3c6a4eb0a48d7b8752c9988e586de4638f163afa1 [2023-11-19 04:11:40,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:11:40,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:11:40,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:11:40,518 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:11:40,518 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:11:40,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i [2023-11-19 04:11:43,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:11:43,923 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:11:43,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i [2023-11-19 04:11:43,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/data/3f34d3858/a287a8f6e8bd4570acc3aa29faf95d8d/FLAG289067575 [2023-11-19 04:11:43,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/data/3f34d3858/a287a8f6e8bd4570acc3aa29faf95d8d [2023-11-19 04:11:43,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:11:43,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:11:43,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:43,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:11:43,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:11:43,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:43" (1/1) ... [2023-11-19 04:11:43,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e22467f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:43, skipping insertion in model container [2023-11-19 04:11:43,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:43" (1/1) ... [2023-11-19 04:11:43,996 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:44,197 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_468ead7a-28e8-48b1-84a7-f55caab55999/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i[916,929] [2023-11-19 04:11:44,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:44,332 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:11:44,383 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_468ead7a-28e8-48b1-84a7-f55caab55999/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-65.i[916,929] [2023-11-19 04:11:44,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:44,499 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:11:44,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44 WrapperNode [2023-11-19 04:11:44,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:44,502 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:44,502 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:11:44,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:11:44,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,612 INFO L138 Inliner]: procedures = 39, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 438 [2023-11-19 04:11:44,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:44,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:11:44,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:11:44,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:11:44,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:11:44,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:11:44,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:11:44,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:11:44,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (1/1) ... [2023-11-19 04:11:44,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:44,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:11:44,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:11:44,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:11:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:11:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-19 04:11:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-19 04:11:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 04:11:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-19 04:11:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:11:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 04:11:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 04:11:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-19 04:11:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:11:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 04:11:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 04:11:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-19 04:11:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:11:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:11:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:11:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:11:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 04:11:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 04:11:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:11:44,997 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:11:45,000 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:11:47,560 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:11:47,571 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:11:47,572 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:11:47,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:47 BoogieIcfgContainer [2023-11-19 04:11:47,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:11:47,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:11:47,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:11:47,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:11:47,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:11:43" (1/3) ... [2023-11-19 04:11:47,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0bf3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:47, skipping insertion in model container [2023-11-19 04:11:47,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:44" (2/3) ... [2023-11-19 04:11:47,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0bf3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:47, skipping insertion in model container [2023-11-19 04:11:47,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:47" (3/3) ... [2023-11-19 04:11:47,592 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-65.i [2023-11-19 04:11:47,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:11:47,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:11:47,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:11:47,673 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;@46738049, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:11:47,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:11:47,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 99 states have (on average 1.4545454545454546) internal successors, (144), 100 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 04:11:47,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 04:11:47,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:47,693 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:47,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:47,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:47,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1938011596, now seen corresponding path program 1 times [2023-11-19 04:11:47,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:47,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750124519] [2023-11-19 04:11:47,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:47,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:47,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:47,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:47,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:11:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:48,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:11:48,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-19 04:11:48,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:48,530 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:48,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750124519] [2023-11-19 04:11:48,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750124519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:48,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:48,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:11:48,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130629356] [2023-11-19 04:11:48,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:48,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:11:48,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:48,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:11:48,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:11:48,572 INFO L87 Difference]: Start difference. First operand has 113 states, 99 states have (on average 1.4545454545454546) internal successors, (144), 100 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 04:11:48,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:48,608 INFO L93 Difference]: Finished difference Result 219 states and 337 transitions. [2023-11-19 04:11:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:11:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2023-11-19 04:11:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:48,619 INFO L225 Difference]: With dead ends: 219 [2023-11-19 04:11:48,620 INFO L226 Difference]: Without dead ends: 109 [2023-11-19 04:11:48,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:11:48,627 INFO L413 NwaCegarLoop]: 157 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, 157 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:48,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:11:48,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-19 04:11:48,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-11-19 04:11:48,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 96 states have (on average 1.40625) internal successors, (135), 96 states have internal predecessors, (135), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 04:11:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2023-11-19 04:11:48,678 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 112 [2023-11-19 04:11:48,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:48,679 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2023-11-19 04:11:48,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 04:11:48,680 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2023-11-19 04:11:48,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 04:11:48,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:48,683 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:48,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:48,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:48,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:48,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:48,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1962849030, now seen corresponding path program 1 times [2023-11-19 04:11:48,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:48,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019068130] [2023-11-19 04:11:48,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:48,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:48,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:48,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:48,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:11:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:49,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:11:49,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 04:11:49,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:49,656 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:49,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019068130] [2023-11-19 04:11:49,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019068130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:49,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:49,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:11:49,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308354173] [2023-11-19 04:11:49,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:49,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:11:49,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:49,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:11:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:11:49,661 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 04:11:49,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:49,842 INFO L93 Difference]: Finished difference Result 221 states and 320 transitions. [2023-11-19 04:11:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:11:49,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2023-11-19 04:11:49,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:49,850 INFO L225 Difference]: With dead ends: 221 [2023-11-19 04:11:49,850 INFO L226 Difference]: Without dead ends: 115 [2023-11-19 04:11:49,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:11:49,853 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 10 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:49,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 456 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:11:49,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-19 04:11:49,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 111. [2023-11-19 04:11:49,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 98 states have (on average 1.3979591836734695) internal successors, (137), 98 states have internal predecessors, (137), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 04:11:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2023-11-19 04:11:49,889 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 112 [2023-11-19 04:11:49,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:49,889 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2023-11-19 04:11:49,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 04:11:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2023-11-19 04:11:49,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 04:11:49,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:49,892 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:49,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:50,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:50,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:11:50,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:50,112 INFO L85 PathProgramCache]: Analyzing trace with hash 611463812, now seen corresponding path program 1 times [2023-11-19 04:11:50,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:50,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556124375] [2023-11-19 04:11:50,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:50,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:11:50,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:50,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:11:50,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:11:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:50,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:11:50,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:50,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:11:50,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 20 [2023-11-19 04:11:52,557 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 04:11:52,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:52,558 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:52,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556124375] [2023-11-19 04:11:52,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556124375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:52,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:52,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:11:52,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271900635] [2023-11-19 04:11:52,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:52,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:11:52,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:11:52,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:11:52,566 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 04:11:54,498 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 [0] [2023-11-19 04:11:57,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 04:12:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:00,850 INFO L93 Difference]: Finished difference Result 321 states and 461 transitions. [2023-11-19 04:12:00,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:12:00,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2023-11-19 04:12:00,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:00,862 INFO L225 Difference]: With dead ends: 321 [2023-11-19 04:12:00,862 INFO L226 Difference]: Without dead ends: 213 [2023-11-19 04:12:00,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:12:00,865 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 90 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:00,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 286 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-11-19 04:12:00,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-19 04:12:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 182. [2023-11-19 04:12:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 157 states have (on average 1.3821656050955413) internal successors, (217), 157 states have internal predecessors, (217), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 04:12:00,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 261 transitions. [2023-11-19 04:12:00,888 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 261 transitions. Word has length 112 [2023-11-19 04:12:00,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:00,889 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 261 transitions. [2023-11-19 04:12:00,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 04:12:00,890 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 261 transitions. [2023-11-19 04:12:00,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 04:12:00,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:00,893 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:00,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-19 04:12:01,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:01,108 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:01,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:01,109 INFO L85 PathProgramCache]: Analyzing trace with hash -726119745, now seen corresponding path program 1 times [2023-11-19 04:12:01,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:01,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542721269] [2023-11-19 04:12:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:01,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:01,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:01,112 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:12:01,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:12:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:01,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:12:01,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:01,796 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 04:12:01,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:01,797 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:01,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542721269] [2023-11-19 04:12:01,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542721269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:01,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:01,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:12:01,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847571748] [2023-11-19 04:12:01,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:01,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:12:01,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:01,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:12:01,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:12:01,800 INFO L87 Difference]: Start difference. First operand 182 states and 261 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 04:12:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:01,942 INFO L93 Difference]: Finished difference Result 311 states and 447 transitions. [2023-11-19 04:12:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:12:01,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2023-11-19 04:12:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:01,945 INFO L225 Difference]: With dead ends: 311 [2023-11-19 04:12:01,946 INFO L226 Difference]: Without dead ends: 203 [2023-11-19 04:12:01,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:12:01,948 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 46 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:01,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 600 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:12:01,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-19 04:12:01,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2023-11-19 04:12:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 161 states have (on average 1.3726708074534162) internal successors, (221), 161 states have internal predecessors, (221), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 04:12:01,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 265 transitions. [2023-11-19 04:12:01,969 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 265 transitions. Word has length 113 [2023-11-19 04:12:01,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:01,970 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 265 transitions. [2023-11-19 04:12:01,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 04:12:01,971 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 265 transitions. [2023-11-19 04:12:01,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 04:12:01,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:01,974 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:02,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:12:02,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:02,196 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:02,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash -46061375, now seen corresponding path program 1 times [2023-11-19 04:12:02,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:02,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336928679] [2023-11-19 04:12:02,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:02,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:02,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:02,199 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:12:02,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 04:12:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:02,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:12:02,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 04:12:02,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:02,840 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:02,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336928679] [2023-11-19 04:12:02,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336928679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:02,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:02,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:12:02,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260271187] [2023-11-19 04:12:02,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:02,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:12:02,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:02,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:12:02,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:12:02,843 INFO L87 Difference]: Start difference. First operand 186 states and 265 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 04:12:03,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:03,080 INFO L93 Difference]: Finished difference Result 318 states and 452 transitions. [2023-11-19 04:12:03,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 04:12:03,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2023-11-19 04:12:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:03,083 INFO L225 Difference]: With dead ends: 318 [2023-11-19 04:12:03,084 INFO L226 Difference]: Without dead ends: 206 [2023-11-19 04:12:03,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-19 04:12:03,086 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 49 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:03,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 743 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:12:03,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-11-19 04:12:03,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 188. [2023-11-19 04:12:03,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 163 states have (on average 1.3680981595092025) internal successors, (223), 163 states have internal predecessors, (223), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 04:12:03,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 267 transitions. [2023-11-19 04:12:03,130 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 267 transitions. Word has length 113 [2023-11-19 04:12:03,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:03,131 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 267 transitions. [2023-11-19 04:12:03,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 04:12:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 267 transitions. [2023-11-19 04:12:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 04:12:03,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:03,142 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:03,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 04:12:03,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:03,343 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:03,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:03,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1728945987, now seen corresponding path program 1 times [2023-11-19 04:12:03,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:03,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945945955] [2023-11-19 04:12:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:03,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:03,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:03,346 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:12:03,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 04:12:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:03,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 04:12:03,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:04,002 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 04:12:04,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:04,003 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:04,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945945955] [2023-11-19 04:12:04,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945945955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:04,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:04,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:12:04,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118691200] [2023-11-19 04:12:04,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:04,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:12:04,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:04,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:12:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:12:04,006 INFO L87 Difference]: Start difference. First operand 188 states and 267 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 04:12:04,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:04,412 INFO L93 Difference]: Finished difference Result 321 states and 452 transitions. [2023-11-19 04:12:04,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 04:12:04,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2023-11-19 04:12:04,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:04,415 INFO L225 Difference]: With dead ends: 321 [2023-11-19 04:12:04,416 INFO L226 Difference]: Without dead ends: 207 [2023-11-19 04:12:04,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-11-19 04:12:04,418 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 40 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:04,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 879 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:12:04,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-19 04:12:04,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 190. [2023-11-19 04:12:04,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 165 states have (on average 1.3636363636363635) internal successors, (225), 165 states have internal predecessors, (225), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 04:12:04,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 269 transitions. [2023-11-19 04:12:04,433 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 269 transitions. Word has length 113 [2023-11-19 04:12:04,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:04,434 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 269 transitions. [2023-11-19 04:12:04,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 04:12:04,435 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 269 transitions. [2023-11-19 04:12:04,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 04:12:04,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:04,437 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:04,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 04:12:04,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:04,651 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:04,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:04,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1730793029, now seen corresponding path program 1 times [2023-11-19 04:12:04,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:04,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011007313] [2023-11-19 04:12:04,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:04,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:04,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:04,656 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:12:04,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 04:12:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:05,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:12:05,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:05,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:12:05,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 65 [2023-11-19 04:12:05,457 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 04:12:05,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:05,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:05,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011007313] [2023-11-19 04:12:05,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011007313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:05,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:05,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:12:05,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801607574] [2023-11-19 04:12:05,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:05,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:12:05,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:05,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:12:05,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:12:05,461 INFO L87 Difference]: Start difference. First operand 190 states and 269 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 04:12:08,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:12:09,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:09,122 INFO L93 Difference]: Finished difference Result 372 states and 529 transitions. [2023-11-19 04:12:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:12:09,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2023-11-19 04:12:09,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:09,124 INFO L225 Difference]: With dead ends: 372 [2023-11-19 04:12:09,124 INFO L226 Difference]: Without dead ends: 198 [2023-11-19 04:12:09,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:12:09,126 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 170 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:09,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 377 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-19 04:12:09,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-19 04:12:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 186. [2023-11-19 04:12:09,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 161 states have (on average 1.360248447204969) internal successors, (219), 161 states have internal predecessors, (219), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 04:12:09,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 263 transitions. [2023-11-19 04:12:09,150 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 263 transitions. Word has length 113 [2023-11-19 04:12:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:09,150 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 263 transitions. [2023-11-19 04:12:09,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 04:12:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 263 transitions. [2023-11-19 04:12:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-19 04:12:09,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:09,153 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:09,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-19 04:12:09,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:09,367 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:09,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:09,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1230265213, now seen corresponding path program 1 times [2023-11-19 04:12:09,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:09,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368771285] [2023-11-19 04:12:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:09,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:12:09,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:09,370 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:12:09,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-19 04:12:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:09,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:12:09,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:10,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:12:10,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 64 [2023-11-19 04:12:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 96 proven. 8 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-19 04:12:10,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:12:10,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:12:10,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 1 [2023-11-19 04:12:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 04:12:10,828 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368771285] [2023-11-19 04:12:10,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368771285] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:12:10,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [108333508] [2023-11-19 04:12:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:10,829 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:12:10,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:12:10,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:12:10,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-19 04:12:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:12,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 04:12:12,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:12,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-19 04:12:17,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:12:17,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 221 treesize of output 91 [2023-11-19 04:12:17,683 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 96 proven. 8 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-19 04:12:17,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:12:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 04:12:18,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [108333508] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:12:18,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978876649] [2023-11-19 04:12:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:18,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:12:18,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:18,925 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:12:18,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ead7a-28e8-48b1-84a7-f55caab55999/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 04:12:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:19,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 04:12:19,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:19,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:12:19,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2023-11-19 04:12:19,898 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-19 04:12:19,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:19,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978876649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:19,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-19 04:12:19,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 8, 10, 9] total 21 [2023-11-19 04:12:19,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509835899] [2023-11-19 04:12:19,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:19,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:12:19,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:19,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:12:19,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=339, Unknown=2, NotChecked=0, Total=420 [2023-11-19 04:12:19,901 INFO L87 Difference]: Start difference. First operand 186 states and 263 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 04:12:22,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []