./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e812dc698b4655d38d198bd0d019421c12f3fcceff72c56e7a8be5775cf6eb49 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:12:31,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:12:32,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:12:32,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:12:32,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:12:32,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:12:32,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:12:32,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:12:32,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:12:32,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:12:32,069 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:12:32,070 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:12:32,071 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:12:32,073 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:12:32,074 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:12:32,074 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:12:32,075 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:12:32,075 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:12:32,076 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:12:32,077 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:12:32,077 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:12:32,078 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:12:32,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:12:32,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:12:32,080 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:12:32,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:12:32,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:12:32,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:12:32,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:12:32,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:12:32,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:12:32,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:12:32,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:12:32,085 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:12:32,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:12:32,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:12:32,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:32,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:12:32,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:12:32,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:12:32,088 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:12:32,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:12:32,089 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:12:32,089 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:12:32,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:12:32,090 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_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e812dc698b4655d38d198bd0d019421c12f3fcceff72c56e7a8be5775cf6eb49 [2023-11-12 00:12:32,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:12:32,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:12:32,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:12:32,451 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:12:32,452 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:12:32,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i [2023-11-12 00:12:35,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:12:36,141 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:12:36,141 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i [2023-11-12 00:12:36,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/data/89e3ffef1/6a5125e4252a4c1f89c84eb6da0867fc/FLAG9c35437df [2023-11-12 00:12:36,170 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/data/89e3ffef1/6a5125e4252a4c1f89c84eb6da0867fc [2023-11-12 00:12:36,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:12:36,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:12:36,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:36,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:12:36,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:12:36,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f836029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36, skipping insertion in model container [2023-11-12 00:12:36,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,244 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:12:36,447 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_951da35c-404b-4f61-a572-56c0bb5e5b08/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i[912,925] [2023-11-12 00:12:36,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:36,524 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:12:36,540 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_951da35c-404b-4f61-a572-56c0bb5e5b08/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i[912,925] [2023-11-12 00:12:36,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:36,593 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:12:36,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36 WrapperNode [2023-11-12 00:12:36,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:36,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:36,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:12:36,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:12:36,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,653 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-11-12 00:12:36,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:36,654 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:12:36,654 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:12:36,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:12:36,664 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:12:36,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:12:36,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:12:36,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:12:36,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (1/1) ... [2023-11-12 00:12:36,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:36,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:36,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:12:36,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:12:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:12:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:12:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:12:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:12:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:12:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:12:36,859 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:12:36,861 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:12:37,317 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:12:37,603 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:12:37,604 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:12:37,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:37 BoogieIcfgContainer [2023-11-12 00:12:37,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:12:37,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:12:37,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:12:37,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:12:37,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:12:36" (1/3) ... [2023-11-12 00:12:37,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe3d092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:37, skipping insertion in model container [2023-11-12 00:12:37,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:36" (2/3) ... [2023-11-12 00:12:37,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe3d092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:37, skipping insertion in model container [2023-11-12 00:12:37,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:37" (3/3) ... [2023-11-12 00:12:37,616 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-9.i [2023-11-12 00:12:37,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:12:37,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:12:37,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:12:37,694 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;@7a84f3a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:12:37,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:12:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:12:37,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-12 00:12:37,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:37,711 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:37,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:37,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash 511607599, now seen corresponding path program 1 times [2023-11-12 00:12:37,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:37,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472983751] [2023-11-12 00:12:37,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:37,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:37,956 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:12:37,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68955965] [2023-11-12 00:12:37,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:37,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:12:37,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:37,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:12:37,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:12:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:12:38,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:12:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:12:38,509 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:12:38,513 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:12:38,514 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:12:38,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:12:38,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:12:38,727 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:12:38,731 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:12:38,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:12:38 BoogieIcfgContainer [2023-11-12 00:12:38,859 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:12:38,861 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:12:38,862 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:12:38,862 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:12:38,862 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:37" (3/4) ... [2023-11-12 00:12:38,865 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:12:38,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:12:38,867 INFO L158 Benchmark]: Toolchain (without parser) took 2685.33ms. Allocated memory is still 188.7MB. Free memory was 158.2MB in the beginning and 137.7MB in the end (delta: 20.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-11-12 00:12:38,869 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 188.7MB. Free memory was 163.9MB in the beginning and 163.8MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:12:38,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.16ms. Allocated memory is still 188.7MB. Free memory was 157.5MB in the beginning and 145.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:12:38,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.15ms. Allocated memory is still 188.7MB. Free memory was 145.0MB in the beginning and 142.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:12:38,877 INFO L158 Benchmark]: Boogie Preprocessor took 35.65ms. Allocated memory is still 188.7MB. Free memory was 141.8MB in the beginning and 140.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:12:38,879 INFO L158 Benchmark]: RCFGBuilder took 916.03ms. Allocated memory is still 188.7MB. Free memory was 140.2MB in the beginning and 87.8MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-12 00:12:38,879 INFO L158 Benchmark]: TraceAbstraction took 1251.37ms. Allocated memory is still 188.7MB. Free memory was 86.8MB in the beginning and 138.7MB in the end (delta: -51.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:12:38,880 INFO L158 Benchmark]: Witness Printer took 4.92ms. Allocated memory is still 188.7MB. Free memory was 138.7MB in the beginning and 137.7MB in the end (delta: 994.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:12:38,889 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 188.7MB. Free memory was 163.9MB in the beginning and 163.8MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.16ms. Allocated memory is still 188.7MB. Free memory was 157.5MB in the beginning and 145.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.15ms. Allocated memory is still 188.7MB. Free memory was 145.0MB in the beginning and 142.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.65ms. Allocated memory is still 188.7MB. Free memory was 141.8MB in the beginning and 140.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 916.03ms. Allocated memory is still 188.7MB. Free memory was 140.2MB in the beginning and 87.8MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1251.37ms. Allocated memory is still 188.7MB. Free memory was 86.8MB in the beginning and 138.7MB in the end (delta: -51.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.92ms. Allocated memory is still 188.7MB. Free memory was 138.7MB in the beginning and 137.7MB in the end (delta: 994.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 44, overapproximation of shiftRight at line 42, overapproximation of shiftLeft at line 43. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] signed char var_1_2 = 100; [L24] signed short int var_1_3 = 1; [L25] signed long int var_1_4 = -16; [L26] signed long int var_1_5 = -64; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 5; [L29] double var_1_8 = 16.25; [L30] double var_1_9 = 1.8; [L31] unsigned char var_1_10 = 32; [L32] unsigned char var_1_11 = 64; [L33] unsigned short int var_1_12 = 16; [L34] unsigned long int var_1_13 = 128; [L35] unsigned char var_1_15 = 1; [L36] unsigned short int var_1_16 = 256; [L37] unsigned short int var_1_17 = 8; [L38] signed char var_1_18 = -2; [L124] isInitial = 1 [L125] FCALL initially() [L126] COND TRUE 1 [L127] FCALL updateLastVariables() [L128] CALL updateVariables() [L84] var_1_2 = __VERIFIER_nondet_char() [L85] CALL assume_abort_if_not(var_1_2 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_2 >= -128) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L86] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L87] var_1_3 = __VERIFIER_nondet_short() [L88] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L89] CALL assume_abort_if_not(var_1_3 <= 8) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_3 <= 8) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L90] var_1_4 = __VERIFIER_nondet_long() [L91] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L92] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L93] var_1_5 = __VERIFIER_nondet_long() [L94] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L95] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L96] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L97] var_1_6 = __VERIFIER_nondet_char() [L98] CALL assume_abort_if_not(var_1_6 >= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_6 >= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L99] CALL assume_abort_if_not(var_1_6 <= 12) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_6 <= 12) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L100] var_1_7 = __VERIFIER_nondet_char() [L101] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=65/4, var_1_9=9/5] [L102] CALL assume_abort_if_not(var_1_7 <= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_7 <= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=65/4, var_1_9=9/5] [L103] var_1_8 = __VERIFIER_nondet_double() [L104] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=9/5] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=9/5] [L105] var_1_9 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L107] var_1_11 = __VERIFIER_nondet_uchar() [L108] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L109] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L110] var_1_15 = __VERIFIER_nondet_uchar() [L111] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L112] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L113] var_1_17 = __VERIFIER_nondet_ushort() [L114] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=7, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=7, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L115] CALL assume_abort_if_not(var_1_17 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=7, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_17 <= 65535) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=7, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L128] RET updateVariables() [L129] CALL step() [L42] EXPR var_1_2 >> var_1_3 [L42] COND TRUE (var_1_2 >> var_1_3) == (var_1_4 / var_1_5) [L43] EXPR var_1_3 << (var_1_6 - var_1_7) [L43] COND FALSE !((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) [L46] var_1_1 = var_1_8 [L49] COND FALSE !(var_1_6 <= (var_1_4 + var_1_7)) [L52] var_1_10 = (var_1_3 + var_1_7) [L54] COND TRUE ((var_1_6 >> 2) * var_1_10) > var_1_4 [L55] var_1_12 = var_1_6 [L57] EXPR 1 << var_1_2 [L57] COND TRUE (1 << var_1_2) != (-500 / -100) [L58] COND FALSE !((var_1_6 - var_1_3) >= (var_1_10 + 256)) [L61] var_1_13 = var_1_12 [L66] COND FALSE !((- var_1_9) <= var_1_8) [L79] var_1_16 = var_1_10 [L81] var_1_18 = var_1_3 [L129] RET step() [L130] CALL, EXPR property() [L120] EXPR var_1_2 >> var_1_3 [L120] EXPR ((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 [L120] EXPR var_1_3 << (var_1_6 - var_1_7) [L120] EXPR ((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 [L120] EXPR (((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) [L120-L121] return (((((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6)))) && (((- var_1_9) <= var_1_8) ? (var_1_15 ? ((((((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64)))) < var_1_2) ? ((var_1_17 == var_1_10) ? (var_1_16 == ((unsigned short int) var_1_11)) : 1) : (var_1_16 == ((unsigned short int) 256))) : (var_1_16 == ((unsigned short int) var_1_3))) : (var_1_16 == ((unsigned short int) var_1_10)))) && (var_1_18 == ((signed char) var_1_3)) ; [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=6, var_1_13=6, var_1_15=1, var_1_16=1, var_1_17=7, var_1_18=0, var_1_1=2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=6, var_1_13=6, var_1_15=1, var_1_16=1, var_1_17=7, var_1_18=0, var_1_1=2, var_1_2=-1, var_1_3=0, var_1_4=-3, var_1_5=2, var_1_6=6, var_1_7=1, var_1_8=2, var_1_9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 21, 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=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:12:38,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e812dc698b4655d38d198bd0d019421c12f3fcceff72c56e7a8be5775cf6eb49 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:12:41,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:12:42,098 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:12:42,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:12:42,110 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:12:42,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:12:42,164 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:12:42,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:12:42,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:12:42,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:12:42,173 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:12:42,174 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:12:42,175 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:12:42,177 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:12:42,177 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:12:42,178 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:12:42,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:12:42,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:12:42,181 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:12:42,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:12:42,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:12:42,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:12:42,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:12:42,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:12:42,185 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:12:42,185 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:12:42,186 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:12:42,186 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:12:42,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:12:42,187 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:12:42,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:12:42,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:12:42,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:12:42,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:42,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:12:42,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:12:42,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:12:42,192 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:12:42,192 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:12:42,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:12:42,194 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:12:42,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:12:42,194 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_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e812dc698b4655d38d198bd0d019421c12f3fcceff72c56e7a8be5775cf6eb49 [2023-11-12 00:12:42,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:12:42,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:12:42,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:12:42,754 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:12:42,755 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:12:42,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i [2023-11-12 00:12:46,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:12:46,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:12:46,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i [2023-11-12 00:12:46,489 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/data/bc8748238/8524fbf5f708402081dec50aba670de8/FLAG44349fe02 [2023-11-12 00:12:46,506 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/data/bc8748238/8524fbf5f708402081dec50aba670de8 [2023-11-12 00:12:46,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:12:46,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:12:46,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:46,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:12:46,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:12:46,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:46" (1/1) ... [2023-11-12 00:12:46,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46b4fd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:46, skipping insertion in model container [2023-11-12 00:12:46,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:46" (1/1) ... [2023-11-12 00:12:46,586 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:12:46,849 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_951da35c-404b-4f61-a572-56c0bb5e5b08/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i[912,925] [2023-11-12 00:12:46,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:47,003 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:12:47,028 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_951da35c-404b-4f61-a572-56c0bb5e5b08/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-9.i[912,925] [2023-11-12 00:12:47,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:47,114 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:12:47,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47 WrapperNode [2023-11-12 00:12:47,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:47,117 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:47,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:12:47,118 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:12:47,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,212 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 128 [2023-11-12 00:12:47,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:47,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:12:47,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:12:47,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:12:47,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:12:47,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:12:47,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:12:47,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:12:47,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (1/1) ... [2023-11-12 00:12:47,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:47,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:47,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:12:47,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:12:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:12:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:12:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:12:47,474 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:12:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:12:47,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:12:47,647 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:12:47,649 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:12:48,184 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:12:48,192 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:12:48,193 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:12:48,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:48 BoogieIcfgContainer [2023-11-12 00:12:48,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:12:48,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:12:48,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:12:48,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:12:48,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:12:46" (1/3) ... [2023-11-12 00:12:48,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce7ccec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:48, skipping insertion in model container [2023-11-12 00:12:48,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:47" (2/3) ... [2023-11-12 00:12:48,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce7ccec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:48, skipping insertion in model container [2023-11-12 00:12:48,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:48" (3/3) ... [2023-11-12 00:12:48,207 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-9.i [2023-11-12 00:12:48,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:12:48,230 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:12:48,289 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:12:48,297 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;@5b8a164e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:12:48,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:12:48,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:12:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 00:12:48,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:48,322 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:48,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:48,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:48,330 INFO L85 PathProgramCache]: Analyzing trace with hash -268007097, now seen corresponding path program 1 times [2023-11-12 00:12:48,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:12:48,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41241883] [2023-11-12 00:12:48,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:48,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:12:48,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:12:48,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:12:48,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:12:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:48,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:12:48,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-11-12 00:12:48,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:12:48,848 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:12:48,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41241883] [2023-11-12 00:12:48,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41241883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:48,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:48,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:12:48,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967218421] [2023-11-12 00:12:48,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:48,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:12:48,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:12:48,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:12:48,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:12:48,898 INFO L87 Difference]: Start difference. First operand has 62 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 00:12:48,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:48,935 INFO L93 Difference]: Finished difference Result 117 states and 205 transitions. [2023-11-12 00:12:48,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:12:48,938 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 131 [2023-11-12 00:12:48,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:48,948 INFO L225 Difference]: With dead ends: 117 [2023-11-12 00:12:48,948 INFO L226 Difference]: Without dead ends: 58 [2023-11-12 00:12:48,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:12:48,957 INFO L413 NwaCegarLoop]: 87 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, 87 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:48,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:12:48,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-12 00:12:49,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-12 00:12:49,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:12:49,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 87 transitions. [2023-11-12 00:12:49,023 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 87 transitions. Word has length 131 [2023-11-12 00:12:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:49,024 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 87 transitions. [2023-11-12 00:12:49,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 00:12:49,025 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 87 transitions. [2023-11-12 00:12:49,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-12 00:12:49,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:49,030 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:49,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:12:49,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:12:49,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:49,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:49,250 INFO L85 PathProgramCache]: Analyzing trace with hash -696665289, now seen corresponding path program 1 times [2023-11-12 00:12:49,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:12:49,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119875321] [2023-11-12 00:12:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:49,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:12:49,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:12:49,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:12:49,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951da35c-404b-4f61-a572-56c0bb5e5b08/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 00:12:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:49,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 00:12:49,508 INFO L285 TraceCheckSpWp]: Computing forward predicates...