./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 5500c8c7193dc6037ea6a3bb34476f6fde8daaea8a8ab7a630cc148614b2e159 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:11:54,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:11:54,421 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:11:54,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:11:54,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:11:54,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:11:54,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:11:54,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:11:54,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:11:54,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:11:54,460 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:11:54,461 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:11:54,462 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:11:54,462 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:11:54,463 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:11:54,463 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:11:54,464 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:11:54,464 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:11:54,465 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:11:54,466 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:11:54,466 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:11:54,467 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:11:54,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:11:54,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:11:54,469 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:11:54,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:11:54,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:11:54,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:11:54,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:11:54,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:11:54,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:11:54,472 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:11:54,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:11:54,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:11:54,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:11:54,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:11:54,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:11:54,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:11:54,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:11:54,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:11:54,477 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:11:54,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:11:54,478 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:11:54,479 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:11:54,479 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:11:54,480 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_c358eff6-b6ea-48c4-9a27-c906bfb78269/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5500c8c7193dc6037ea6a3bb34476f6fde8daaea8a8ab7a630cc148614b2e159 [2023-11-19 05:11:54,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:11:54,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:11:54,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:11:54,765 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:11:54,766 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:11:54,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i [2023-11-19 05:11:57,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:11:58,095 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:11:58,096 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i [2023-11-19 05:11:58,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/data/4e13a1661/8f17f66f211f4cda819189436ce77258/FLAG28a8bd2d3 [2023-11-19 05:11:58,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/data/4e13a1661/8f17f66f211f4cda819189436ce77258 [2023-11-19 05:11:58,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:11:58,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:11:58,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:11:58,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:11:58,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:11:58,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380ec60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58, skipping insertion in model container [2023-11-19 05:11:58,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,165 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:11:58,328 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_c358eff6-b6ea-48c4-9a27-c906bfb78269/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i[916,929] [2023-11-19 05:11:58,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:11:58,451 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:11:58,465 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_c358eff6-b6ea-48c4-9a27-c906bfb78269/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i[916,929] [2023-11-19 05:11:58,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:11:58,533 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:11:58,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58 WrapperNode [2023-11-19 05:11:58,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:11:58,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:11:58,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:11:58,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:11:58,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,605 INFO L138 Inliner]: procedures = 29, calls = 142, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 357 [2023-11-19 05:11:58,606 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:11:58,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:11:58,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:11:58,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:11:58,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:11:58,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:11:58,663 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:11:58,663 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:11:58,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (1/1) ... [2023-11-19 05:11:58,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:11:58,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:11:58,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:11:58,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:11:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:11:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 05:11:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:11:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 05:11:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:11:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 05:11:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:11:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:11:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:11:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:11:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:11:58,871 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:11:58,873 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:11:59,412 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:00,044 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:00,044 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:12:00,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:00 BoogieIcfgContainer [2023-11-19 05:12:00,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:00,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:00,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:00,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:00,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:11:58" (1/3) ... [2023-11-19 05:12:00,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4e6d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:00, skipping insertion in model container [2023-11-19 05:12:00,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:58" (2/3) ... [2023-11-19 05:12:00,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4e6d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:00, skipping insertion in model container [2023-11-19 05:12:00,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:00" (3/3) ... [2023-11-19 05:12:00,058 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-41.i [2023-11-19 05:12:00,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:00,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:12:00,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:00,132 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;@582c4b5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:00,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:12:00,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:12:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 05:12:00,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:00,147 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:00,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:00,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:00,153 INFO L85 PathProgramCache]: Analyzing trace with hash 899882974, now seen corresponding path program 1 times [2023-11-19 05:12:00,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:00,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382368854] [2023-11-19 05:12:00,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:00,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:12:01,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:12:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:12:02,535 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:12:02,539 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:12:02,540 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:12:02,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:12:02,551 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:12:02,566 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:12:02,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 05:12:02,644 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 05:12:02,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-19 05:12:02,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-19 05:12:02,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-19 05:12:02,653 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-19 05:12:02,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-19 05:12:02,655 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-19 05:12:02,655 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-19 05:12:02,655 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-19 05:12:02,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-19 05:12:02,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-19 05:12:02,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated [2023-11-19 05:12:02,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-19 05:12:02,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-11-19 05:12:02,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-19 05:12:02,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-19 05:12:02,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-19 05:12:02,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-11-19 05:12:02,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-19 05:12:02,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated [2023-11-19 05:12:02,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-19 05:12:02,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-19 05:12:02,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-19 05:12:02,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-19 05:12:02,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-19 05:12:02,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-19 05:12:02,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-19 05:12:02,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-19 05:12:02,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-19 05:12:02,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-19 05:12:02,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-19 05:12:02,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-19 05:12:02,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-19 05:12:02,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-19 05:12:02,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-19 05:12:02,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 05:12:02,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 05:12:02,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-19 05:12:02,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-19 05:12:02,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:12:02 BoogieIcfgContainer [2023-11-19 05:12:02,687 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:12:02,688 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:12:02,688 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:12:02,688 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:12:02,689 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:00" (3/4) ... [2023-11-19 05:12:02,694 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:12:02,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:12:02,697 INFO L158 Benchmark]: Toolchain (without parser) took 4571.22ms. Allocated memory was 136.3MB in the beginning and 207.6MB in the end (delta: 71.3MB). Free memory was 90.5MB in the beginning and 71.6MB in the end (delta: 18.9MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. [2023-11-19 05:12:02,698 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:02,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.27ms. Allocated memory is still 136.3MB. Free memory was 90.0MB in the beginning and 75.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:12:02,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.88ms. Allocated memory is still 136.3MB. Free memory was 75.7MB in the beginning and 72.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:02,703 INFO L158 Benchmark]: Boogie Preprocessor took 55.33ms. Allocated memory is still 136.3MB. Free memory was 72.3MB in the beginning and 69.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:12:02,707 INFO L158 Benchmark]: RCFGBuilder took 1386.56ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 69.1MB in the beginning and 83.7MB in the end (delta: -14.6MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2023-11-19 05:12:02,709 INFO L158 Benchmark]: TraceAbstraction took 2635.96ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 82.7MB in the beginning and 72.6MB in the end (delta: 10.0MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2023-11-19 05:12:02,709 INFO L158 Benchmark]: Witness Printer took 8.05ms. Allocated memory is still 207.6MB. Free memory was 72.6MB in the beginning and 71.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:02,717 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.27ms. Allocated memory is still 136.3MB. Free memory was 90.0MB in the beginning and 75.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.88ms. Allocated memory is still 136.3MB. Free memory was 75.7MB in the beginning and 72.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.33ms. Allocated memory is still 136.3MB. Free memory was 72.3MB in the beginning and 69.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1386.56ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 69.1MB in the beginning and 83.7MB in the end (delta: -14.6MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2635.96ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 82.7MB in the beginning and 72.6MB in the end (delta: 10.0MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. * Witness Printer took 8.05ms. Allocated memory is still 207.6MB. Free memory was 72.6MB in the beginning and 71.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 48, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L25-L27] double double_Array_0[2] = { 8.5, 999999999999.6 }; [L28-L30] signed char signed_char_Array_0[2][2] = { {5, -8}, {-1, -16} }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 10 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 16, 64 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[1] = { 2 }; [L40] signed char last_1_signed_char_Array_0_1__1_ = -16; [L105] isInitial = 1 [L106] FCALL initially() [L107] COND TRUE 1 [L108] CALL updateLastVariables() [L98] EXPR signed_char_Array_0[1][1] [L98] last_1_signed_char_Array_0_1__1_ = signed_char_Array_0[1][1] [L108] RET updateLastVariables() [L109] CALL updateVariables() [L75] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] 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}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L76] 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}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] 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}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L77] 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}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L79] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L79] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] double_Array_0[1] = __VERIFIER_nondet_double() [L82] EXPR double_Array_0[1] [L82] EXPR double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F [L82] EXPR (double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) [L82] EXPR double_Array_0[1] [L82] EXPR double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F [L82] EXPR double_Array_0[1] [L82] EXPR double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F [L82] EXPR (double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] CALL assume_abort_if_not((double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] signed_char_Array_0[0][0] = __VERIFIER_nondet_char() [L84] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] CALL assume_abort_if_not(signed_char_Array_0[0][0] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(signed_char_Array_0[0][0] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] CALL assume_abort_if_not(signed_char_Array_0[0][0] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(signed_char_Array_0[0][0] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] signed_char_Array_0[1][0] = __VERIFIER_nondet_char() [L87] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L87] CALL assume_abort_if_not(signed_char_Array_0[1][0] >= -128) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(signed_char_Array_0[1][0] >= -128) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] CALL assume_abort_if_not(signed_char_Array_0[1][0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(signed_char_Array_0[1][0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] CALL assume_abort_if_not(signed_char_Array_0[1][0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(signed_char_Array_0[1][0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L90] signed_char_Array_0[0][1] = __VERIFIER_nondet_char() [L91] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L91] CALL assume_abort_if_not(signed_char_Array_0[0][1] >= -31) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(signed_char_Array_0[0][1] >= -31) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L92] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L92] CALL assume_abort_if_not(signed_char_Array_0[0][1] <= 31) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(signed_char_Array_0[0][1] <= 31) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L93] unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L94] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L94] CALL assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] CALL assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L109] RET updateVariables() [L110] CALL step() [L44] EXPR BOOL_unsigned_char_Array_0[1] [L44] COND TRUE BOOL_unsigned_char_Array_0[1] && (last_1_signed_char_Array_0_1__1_ <= last_1_signed_char_Array_0_1__1_) [L45] EXPR unsigned_char_Array_0[1] [L45] unsigned_char_Array_0[0] = unsigned_char_Array_0[1] [L47] EXPR double_Array_0[1] [L47] double_Array_0[0] = (double_Array_0[1] - 8.3) [L48] EXPR double_Array_0[1] [L48] EXPR double_Array_0[0] [L48] unsigned char stepLocal_1 = double_Array_0[1] >= double_Array_0[0]; [L49] EXPR BOOL_unsigned_char_Array_0[1] [L49] COND FALSE !(BOOL_unsigned_char_Array_0[1] && stepLocal_1) [L52] EXPR signed_char_Array_0[1][0] [L52] signed_long_int_Array_0[0] = signed_char_Array_0[1][0] [L54] BOOL_unsigned_char_Array_0[1] [L54] COND TRUE BOOL_unsigned_char_Array_0[1] [L55] EXPR unsigned_char_Array_0[0] [L55] EXPR unsigned_char_Array_0[0] [L55] unsigned_short_int_Array_0[0] = (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]) [L63] EXPR unsigned_short_int_Array_0[0] [L63] EXPR unsigned_char_Array_0[0] [L63] unsigned long int stepLocal_0 = (unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]; [L64] EXPR unsigned_short_int_Array_0[0] [L64] COND FALSE !(stepLocal_0 > unsigned_short_int_Array_0[0]) [L71] EXPR signed_char_Array_0[0][1] [L71] signed_char_Array_0[1][1] = signed_char_Array_0[0][1] [L110] RET step() [L111] CALL, EXPR property() [L101] EXPR unsigned_short_int_Array_0[0] [L101] EXPR unsigned_char_Array_0[0] [L101] EXPR unsigned_short_int_Array_0[0] [L101] EXPR (((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) [L101] EXPR signed_char_Array_0[1][1] [L101] EXPR signed_char_Array_0[0][1] [L101] EXPR (((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) [L101] EXPR ((((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])))) [L101] EXPR BOOL_unsigned_char_Array_0[1] [L101] EXPR BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0]))) [L101] EXPR unsigned_short_int_Array_0[0] [L101] EXPR unsigned_char_Array_0[0] [L101] EXPR unsigned_char_Array_0[0] [L101] EXPR BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0]))) [L101] EXPR ((((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])))) [L101] EXPR (((((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0]))))) && (double_Array_0[0] == ((double) (double_Array_0[1] - 8.3))) [L101] EXPR double_Array_0[0] [L101] EXPR double_Array_0[1] [L101] EXPR (((((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0]))))) && (double_Array_0[0] == ((double) (double_Array_0[1] - 8.3))) [L101] EXPR ((((((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0]))))) && (double_Array_0[0] == ((double) (double_Array_0[1] - 8.3)))) && ((BOOL_unsigned_char_Array_0[1] && (double_Array_0[1] >= double_Array_0[0])) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0]))) [L101] EXPR BOOL_unsigned_char_Array_0[1] [L101] EXPR BOOL_unsigned_char_Array_0[1] && (double_Array_0[1] >= double_Array_0[0]) [L101] EXPR double_Array_0[1] [L101] EXPR double_Array_0[0] [L101] EXPR BOOL_unsigned_char_Array_0[1] && (double_Array_0[1] >= double_Array_0[0]) [L101] EXPR (BOOL_unsigned_char_Array_0[1] && (double_Array_0[1] >= double_Array_0[0])) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) [L101] EXPR signed_long_int_Array_0[0] [L101] EXPR unsigned_char_Array_0[0] [L101] EXPR (BOOL_unsigned_char_Array_0[1] && (double_Array_0[1] >= double_Array_0[0])) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) [L101] EXPR ((((((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0]))))) && (double_Array_0[0] == ((double) (double_Array_0[1] - 8.3)))) && ((BOOL_unsigned_char_Array_0[1] && (double_Array_0[1] >= double_Array_0[0])) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0]))) [L101] EXPR (((((((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0]))))) && (double_Array_0[0] == ((double) (double_Array_0[1] - 8.3)))) && ((BOOL_unsigned_char_Array_0[1] && (double_Array_0[1] >= double_Array_0[0])) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])))) && ((BOOL_unsigned_char_Array_0[1] && (last_1_signed_char_Array_0_1__1_ <= last_1_signed_char_Array_0_1__1_)) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : 1) [L101-L102] return (((((((unsigned_short_int_Array_0[0] & 0u) * unsigned_char_Array_0[0]) > unsigned_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][1] == ((signed char) ((16 + signed_char_Array_0[0][1]) + signed_char_Array_0[0][0]))) : (signed_char_Array_0[1][1] == ((signed char) ((((signed_char_Array_0[0][1]) < 0 ) ? -(signed_char_Array_0[0][1]) : (signed_char_Array_0[0][1])))))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[0] + unsigned_char_Array_0[0]))) : (((unsigned_char_Array_0[0] > signed_long_int_Array_0[0]) || BOOL_unsigned_char_Array_0[0]) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_char_Array_0[0]))))) && (double_Array_0[0] == ((double) (double_Array_0[1] - 8.3)))) && ((BOOL_unsigned_char_Array_0[1] && (double_Array_0[1] >= double_Array_0[0])) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])))) && ((BOOL_unsigned_char_Array_0[1] && (last_1_signed_char_Array_0_1__1_ <= last_1_signed_char_Array_0_1__1_)) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : 1) ; [L111] RET, EXPR property() [L111] 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}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_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}, isInitial=1, last_1_signed_char_Array_0_1__1_=-16, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 1, TraceHistogramMax: 14, 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=37occurred 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, 60 NumberOfCodeBlocks, 60 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 05:12:02,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 5500c8c7193dc6037ea6a3bb34476f6fde8daaea8a8ab7a630cc148614b2e159 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:12:05,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:12:05,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:12:05,594 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:12:05,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:12:05,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:12:05,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:12:05,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:12:05,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:12:05,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:12:05,650 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:12:05,650 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:12:05,651 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:12:05,652 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:12:05,652 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:12:05,652 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:12:05,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:12:05,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:12:05,654 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:12:05,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:12:05,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:12:05,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:12:05,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:12:05,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:12:05,657 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:12:05,658 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:12:05,658 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:12:05,659 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:12:05,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:12:05,660 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:12:05,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:12:05,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:12:05,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:12:05,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:05,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:12:05,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:12:05,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:12:05,663 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:12:05,664 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:12:05,664 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:12:05,664 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:12:05,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:12:05,666 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_c358eff6-b6ea-48c4-9a27-c906bfb78269/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5500c8c7193dc6037ea6a3bb34476f6fde8daaea8a8ab7a630cc148614b2e159 [2023-11-19 05:12:06,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:12:06,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:12:06,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:12:06,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:12:06,100 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:12:06,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i [2023-11-19 05:12:09,266 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:09,600 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:09,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i [2023-11-19 05:12:09,614 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/data/8aa3d4ac8/517f0074e40f452da583a3fad24c83ac/FLAG592d3ae2a [2023-11-19 05:12:09,634 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/data/8aa3d4ac8/517f0074e40f452da583a3fad24c83ac [2023-11-19 05:12:09,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:09,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:09,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:09,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:09,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:09,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:09" (1/1) ... [2023-11-19 05:12:09,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b40423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:09, skipping insertion in model container [2023-11-19 05:12:09,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:09" (1/1) ... [2023-11-19 05:12:09,697 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:09,895 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_c358eff6-b6ea-48c4-9a27-c906bfb78269/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i[916,929] [2023-11-19 05:12:09,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:09,999 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:12:10,025 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_c358eff6-b6ea-48c4-9a27-c906bfb78269/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-41.i[916,929] [2023-11-19 05:12:10,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:10,131 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:12:10,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10 WrapperNode [2023-11-19 05:12:10,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:10,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:10,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:12:10,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:12:10,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,211 INFO L138 Inliner]: procedures = 36, calls = 142, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 354 [2023-11-19 05:12:10,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:10,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:12:10,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:12:10,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:12:10,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:12:10,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:12:10,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:12:10,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:12:10,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (1/1) ... [2023-11-19 05:12:10,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:10,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:10,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:12:10,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:12:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:12:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-19 05:12:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-19 05:12:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 05:12:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-19 05:12:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:12:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 05:12:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-19 05:12:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:12:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 05:12:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:12:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:12:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:12:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:12:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 05:12:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 05:12:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:12:10,606 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:12:10,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:12:11,682 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:11,691 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:11,691 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:12:11,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:11 BoogieIcfgContainer [2023-11-19 05:12:11,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:11,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:11,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:11,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:11,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:12:09" (1/3) ... [2023-11-19 05:12:11,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2005dfd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:11, skipping insertion in model container [2023-11-19 05:12:11,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:10" (2/3) ... [2023-11-19 05:12:11,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2005dfd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:11, skipping insertion in model container [2023-11-19 05:12:11,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:11" (3/3) ... [2023-11-19 05:12:11,705 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-41.i [2023-11-19 05:12:11,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:11,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:12:11,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:11,822 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;@34f1c2f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:11,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:12:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 73 states have internal predecessors, (101), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:12:11,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 05:12:11,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:11,848 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:11,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:11,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1011275404, now seen corresponding path program 1 times [2023-11-19 05:12:11,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:11,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336139315] [2023-11-19 05:12:11,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:11,876 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 05:12:11,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:11,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:11,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:12,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:12:12,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:12,432 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-11-19 05:12:12,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:12,433 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:12:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336139315] [2023-11-19 05:12:12,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336139315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:12,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:12,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:12:12,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693042584] [2023-11-19 05:12:12,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:12,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:12:12,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:12:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:12:12,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:12:12,472 INFO L87 Difference]: Start difference. First operand has 89 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 73 states have internal predecessors, (101), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 05:12:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:12,503 INFO L93 Difference]: Finished difference Result 167 states and 260 transitions. [2023-11-19 05:12:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:12:12,505 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-11-19 05:12:12,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:12,513 INFO L225 Difference]: With dead ends: 167 [2023-11-19 05:12:12,514 INFO L226 Difference]: Without dead ends: 81 [2023-11-19 05:12:12,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 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 05:12:12,521 INFO L413 NwaCegarLoop]: 115 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, 115 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 05:12:12,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-19 05:12:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-11-19 05:12:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 65 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:12:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 115 transitions. [2023-11-19 05:12:12,584 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 115 transitions. Word has length 114 [2023-11-19 05:12:12,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:12,585 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 115 transitions. [2023-11-19 05:12:12,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 05:12:12,586 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 115 transitions. [2023-11-19 05:12:12,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 05:12:12,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:12,596 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:12,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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)] Ended with exit code 0 [2023-11-19 05:12:12,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:12,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:12,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:12,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1389079960, now seen corresponding path program 1 times [2023-11-19 05:12:12,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:12,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136876506] [2023-11-19 05:12:12,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:12,807 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 05:12:12,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:12,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:12,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:13,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:12:13,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 05:12:13,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:13,257 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:12:13,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136876506] [2023-11-19 05:12:13,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136876506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:13,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:13,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:12:13,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842970139] [2023-11-19 05:12:13,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:13,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:13,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:12:13,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:13,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:13,262 INFO L87 Difference]: Start difference. First operand 81 states and 115 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 05:12:13,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:13,518 INFO L93 Difference]: Finished difference Result 181 states and 260 transitions. [2023-11-19 05:12:13,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:12:13,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-11-19 05:12:13,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:13,521 INFO L225 Difference]: With dead ends: 181 [2023-11-19 05:12:13,521 INFO L226 Difference]: Without dead ends: 103 [2023-11-19 05:12:13,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 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 05:12:13,524 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 45 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:13,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 340 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:13,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-19 05:12:13,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 83. [2023-11-19 05:12:13,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 67 states have (on average 1.328358208955224) internal successors, (89), 67 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:12:13,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2023-11-19 05:12:13,539 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 114 [2023-11-19 05:12:13,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:13,541 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2023-11-19 05:12:13,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 05:12:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2023-11-19 05:12:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 05:12:13,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:13,544 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:13,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:13,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:13,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:13,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:13,754 INFO L85 PathProgramCache]: Analyzing trace with hash -709021590, now seen corresponding path program 1 times [2023-11-19 05:12:13,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:13,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765680843] [2023-11-19 05:12:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:13,759 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 05:12:13,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:13,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:13,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:14,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:12:14,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:14,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:12:14,354 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 05:12:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-19 05:12:14,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:14,402 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:12:14,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765680843] [2023-11-19 05:12:14,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765680843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:14,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:14,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:12:14,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412529864] [2023-11-19 05:12:14,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:14,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:12:14,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:12:14,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:12:14,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:12:14,406 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 05:12:15,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:15,456 INFO L93 Difference]: Finished difference Result 169 states and 240 transitions. [2023-11-19 05:12:15,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:12:15,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-11-19 05:12:15,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:15,462 INFO L225 Difference]: With dead ends: 169 [2023-11-19 05:12:15,462 INFO L226 Difference]: Without dead ends: 89 [2023-11-19 05:12:15,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:12:15,465 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 106 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:15,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 341 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 05:12:15,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-19 05:12:15,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 83. [2023-11-19 05:12:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 67 states have internal predecessors, (88), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:12:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 116 transitions. [2023-11-19 05:12:15,478 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 116 transitions. Word has length 114 [2023-11-19 05:12:15,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:15,478 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 116 transitions. [2023-11-19 05:12:15,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 05:12:15,479 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 116 transitions. [2023-11-19 05:12:15,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-19 05:12:15,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:15,481 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:15,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:15,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:15,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:15,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:15,689 INFO L85 PathProgramCache]: Analyzing trace with hash -400113810, now seen corresponding path program 1 times [2023-11-19 05:12:15,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:15,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982573961] [2023-11-19 05:12:15,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:15,691 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 05:12:15,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:15,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:15,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:16,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:12:16,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:16,116 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-19 05:12:16,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:16,117 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:12:16,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982573961] [2023-11-19 05:12:16,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982573961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:16,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:16,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 05:12:16,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139385078] [2023-11-19 05:12:16,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:16,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:12:16,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:12:16,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:12:16,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:12:16,120 INFO L87 Difference]: Start difference. First operand 83 states and 116 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-19 05:12:16,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:16,342 INFO L93 Difference]: Finished difference Result 167 states and 234 transitions. [2023-11-19 05:12:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:12:16,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2023-11-19 05:12:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:16,344 INFO L225 Difference]: With dead ends: 167 [2023-11-19 05:12:16,344 INFO L226 Difference]: Without dead ends: 85 [2023-11-19 05:12:16,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:12:16,346 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 7 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:16,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 442 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-19 05:12:16,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2023-11-19 05:12:16,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 67 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:12:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2023-11-19 05:12:16,358 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 116 [2023-11-19 05:12:16,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:16,359 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2023-11-19 05:12:16,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-19 05:12:16,359 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2023-11-19 05:12:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-19 05:12:16,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:16,361 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:16,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:16,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:16,569 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:16,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:16,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1479017136, now seen corresponding path program 1 times [2023-11-19 05:12:16,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:16,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581871949] [2023-11-19 05:12:16,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:16,571 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 05:12:16,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:16,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:16,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:17,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 05:12:17,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:19,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-19 05:12:20,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-19 05:12:20,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-19 05:12:20,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-19 05:12:20,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-19 05:12:20,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2023-11-19 05:12:20,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:12:20,754 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 88 treesize of output 40 [2023-11-19 05:12:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 158 proven. 12 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-19 05:12:20,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:12:21,107 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 05:12:21,107 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:12:21,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581871949] [2023-11-19 05:12:21,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581871949] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:21,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:12:21,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2023-11-19 05:12:21,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120346954] [2023-11-19 05:12:21,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:21,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:12:21,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:12:21,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:12:21,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2023-11-19 05:12:21,110 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 05:12:22,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:22,209 INFO L93 Difference]: Finished difference Result 191 states and 265 transitions. [2023-11-19 05:12:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:12:22,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2023-11-19 05:12:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:22,212 INFO L225 Difference]: With dead ends: 191 [2023-11-19 05:12:22,212 INFO L226 Difference]: Without dead ends: 111 [2023-11-19 05:12:22,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2023-11-19 05:12:22,214 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 77 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:22,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 400 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 05:12:22,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-19 05:12:22,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 87. [2023-11-19 05:12:22,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:12:22,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2023-11-19 05:12:22,225 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 116 [2023-11-19 05:12:22,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:22,226 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2023-11-19 05:12:22,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 05:12:22,226 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2023-11-19 05:12:22,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 05:12:22,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:22,228 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:22,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:22,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:22,437 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:22,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1182595188, now seen corresponding path program 1 times [2023-11-19 05:12:22,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:22,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295327427] [2023-11-19 05:12:22,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:22,439 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 05:12:22,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:22,441 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:22,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:22,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:12:22,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 05:12:22,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:22,770 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:12:22,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295327427] [2023-11-19 05:12:22,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295327427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:22,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:22,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:22,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657485094] [2023-11-19 05:12:22,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:22,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:22,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:12:22,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:22,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:22,773 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 05:12:22,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:22,789 INFO L93 Difference]: Finished difference Result 162 states and 223 transitions. [2023-11-19 05:12:22,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:22,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-11-19 05:12:22,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:22,792 INFO L225 Difference]: With dead ends: 162 [2023-11-19 05:12:22,792 INFO L226 Difference]: Without dead ends: 78 [2023-11-19 05:12:22,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:22,794 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:22,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 207 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:22,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-19 05:12:22,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-19 05:12:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 62 states have internal predecessors, (78), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:12:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 106 transitions. [2023-11-19 05:12:22,803 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 106 transitions. Word has length 117 [2023-11-19 05:12:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:22,803 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 106 transitions. [2023-11-19 05:12:22,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 05:12:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 106 transitions. [2023-11-19 05:12:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-19 05:12:22,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:22,806 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:22,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:23,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:23,014 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:23,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash 186767657, now seen corresponding path program 1 times [2023-11-19 05:12:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:23,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817943723] [2023-11-19 05:12:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:23,016 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 05:12:23,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:23,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:23,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c358eff6-b6ea-48c4-9a27-c906bfb78269/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 05:12:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:53,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-19 05:12:54,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:55,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1