./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.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_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/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_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/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_8745f16d-218b-4ddf-9468-4cd2beee3220/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 4caff26fc73638e5f12efd7078239ddc60605dcfb854b96620a2374df91a448f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:50:40,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:50:40,106 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:50:40,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:50:40,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:50:40,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:50:40,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:50:40,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:50:40,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:50:40,139 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:50:40,140 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:50:40,140 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:50:40,141 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:50:40,145 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:50:40,146 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:50:40,146 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:50:40,147 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:50:40,147 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:50:40,148 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:50:40,148 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:50:40,149 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:50:40,153 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:50:40,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:50:40,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:50:40,155 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:50:40,156 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:50:40,156 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:50:40,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:50:40,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:50:40,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:50:40,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:50:40,158 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:50:40,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:50:40,159 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:50:40,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:50:40,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:50:40,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:40,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:50:40,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:50:40,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:50:40,163 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:50:40,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:50:40,168 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:50:40,168 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:50:40,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:50:40,169 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_8745f16d-218b-4ddf-9468-4cd2beee3220/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4caff26fc73638e5f12efd7078239ddc60605dcfb854b96620a2374df91a448f [2023-11-19 04:50:40,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:50:40,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:50:40,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:50:40,526 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:50:40,528 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:50:40,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i [2023-11-19 04:50:43,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:50:43,900 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:50:43,900 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i [2023-11-19 04:50:43,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/data/a23714fb3/e9919e186b414b98b1ff8a1d12f6eb2c/FLAGdccaa666f [2023-11-19 04:50:43,926 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/data/a23714fb3/e9919e186b414b98b1ff8a1d12f6eb2c [2023-11-19 04:50:43,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:50:43,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:50:43,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:43,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:50:43,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:50:43,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:43" (1/1) ... [2023-11-19 04:50:43,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e9ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:43, skipping insertion in model container [2023-11-19 04:50:43,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:43" (1/1) ... [2023-11-19 04:50:43,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:50:44,204 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_8745f16d-218b-4ddf-9468-4cd2beee3220/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i[915,928] [2023-11-19 04:50:44,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:44,304 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:50:44,321 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_8745f16d-218b-4ddf-9468-4cd2beee3220/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i[915,928] [2023-11-19 04:50:44,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:44,393 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:50:44,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44 WrapperNode [2023-11-19 04:50:44,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:44,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:44,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:50:44,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:50:44,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,470 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-19 04:50:44,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:44,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:50:44,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:50:44,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:50:44,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:50:44,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:50:44,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:50:44,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:50:44,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (1/1) ... [2023-11-19 04:50:44,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:44,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:50:44,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:50:44,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:50:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:50:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:50:44,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:50:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:50:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:50:44,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:50:44,742 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:50:44,744 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:50:45,079 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:50:45,270 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:50:45,271 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:50:45,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:45 BoogieIcfgContainer [2023-11-19 04:50:45,276 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:50:45,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:50:45,280 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:50:45,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:50:45,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:50:43" (1/3) ... [2023-11-19 04:50:45,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b7314d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:45, skipping insertion in model container [2023-11-19 04:50:45,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:44" (2/3) ... [2023-11-19 04:50:45,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b7314d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:45, skipping insertion in model container [2023-11-19 04:50:45,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:45" (3/3) ... [2023-11-19 04:50:45,287 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-10.i [2023-11-19 04:50:45,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:50:45,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:50:45,358 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:50:45,366 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;@56065a70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:50:45,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:50:45,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:50:45,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 04:50:45,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:45,384 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:45,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:45,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:45,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1099396504, now seen corresponding path program 1 times [2023-11-19 04:50:45,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:45,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809175429] [2023-11-19 04:50:45,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:45,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:45,563 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:50:45,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510414268] [2023-11-19 04:50:45,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:45,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:50:45,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:50:45,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:50:45,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:50:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:50:45,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:50:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:50:46,162 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:50:46,165 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:50:46,166 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:50:46,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:50:46,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 04:50:46,380 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:50:46,384 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:50:46,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:50:46 BoogieIcfgContainer [2023-11-19 04:50:46,509 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:50:46,510 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:50:46,510 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:50:46,511 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:50:46,511 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:45" (3/4) ... [2023-11-19 04:50:46,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:50:46,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:50:46,516 INFO L158 Benchmark]: Toolchain (without parser) took 2585.51ms. Allocated memory is still 146.8MB. Free memory was 103.8MB in the beginning and 45.5MB in the end (delta: 58.3MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2023-11-19 04:50:46,523 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:50:46,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.16ms. Allocated memory is still 146.8MB. Free memory was 103.5MB in the beginning and 110.9MB in the end (delta: -7.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:50:46,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.59ms. Allocated memory is still 146.8MB. Free memory was 110.9MB in the beginning and 108.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:50:46,532 INFO L158 Benchmark]: Boogie Preprocessor took 68.84ms. Allocated memory is still 146.8MB. Free memory was 108.4MB in the beginning and 107.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:50:46,534 INFO L158 Benchmark]: RCFGBuilder took 733.47ms. Allocated memory is still 146.8MB. Free memory was 106.7MB in the beginning and 80.8MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 04:50:46,534 INFO L158 Benchmark]: TraceAbstraction took 1230.10ms. Allocated memory is still 146.8MB. Free memory was 79.9MB in the beginning and 45.9MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 04:50:46,535 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 146.8MB. Free memory was 45.9MB in the beginning and 45.5MB in the end (delta: 383.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:50:46,540 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.16ms. Allocated memory is still 146.8MB. Free memory was 103.5MB in the beginning and 110.9MB in the end (delta: -7.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.59ms. Allocated memory is still 146.8MB. Free memory was 110.9MB in the beginning and 108.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.84ms. Allocated memory is still 146.8MB. Free memory was 108.4MB in the beginning and 107.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 733.47ms. Allocated memory is still 146.8MB. Free memory was 106.7MB in the beginning and 80.8MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1230.10ms. Allocated memory is still 146.8MB. Free memory was 79.9MB in the beginning and 45.9MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 146.8MB. Free memory was 45.9MB in the beginning and 45.5MB in the end (delta: 383.1kB). 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 60, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of someUnaryDOUBLEoperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 5; [L23] unsigned long int var_1_2 = 8; [L24] double var_1_3 = 9.15; [L25] double var_1_6 = 1000000.875; [L26] double var_1_7 = 49.25; [L27] double var_1_8 = 1000000000.8; [L28] double var_1_9 = 7.85; [L29] double var_1_10 = 15.5; [L30] double var_1_11 = 49.875; [L31] unsigned char var_1_12 = 4; [L32] unsigned char var_1_13 = 0; [L33] unsigned short int var_1_14 = 42290; [L34] unsigned short int var_1_15 = 2; [L35] unsigned char var_1_16 = 32; [L36] double var_1_17 = 64.4; [L37] signed long int var_1_18 = 0; [L38] signed char var_1_19 = -1; [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] FCALL updateLastVariables() [L108] CALL updateVariables() [L68] var_1_2 = __VERIFIER_nondet_ulong() [L69] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_3=183/20, var_1_6=8000007/8, var_1_7=197/4, var_1_8=5000000004/5, var_1_9=157/20] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_3=183/20, var_1_6=8000007/8, var_1_7=197/4, var_1_8=5000000004/5, var_1_9=157/20] [L70] CALL assume_abort_if_not(var_1_2 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=8000007/8, var_1_7=197/4, var_1_8=5000000004/5, var_1_9=157/20] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_2 <= 4294967294) VAL [isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=8000007/8, var_1_7=197/4, var_1_8=5000000004/5, var_1_9=157/20] [L71] var_1_6 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=197/4, var_1_8=5000000004/5, var_1_9=157/20] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=197/4, var_1_8=5000000004/5, var_1_9=157/20] [L73] var_1_7 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=5000000004/5, var_1_9=157/20] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=5000000004/5, var_1_9=157/20] [L75] var_1_8 = __VERIFIER_nondet_double() [L76] CALL assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=157/20] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=157/20] [L77] var_1_9 = __VERIFIER_nondet_double() [L78] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31/2, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L79] var_1_10 = __VERIFIER_nondet_double() [L80] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=6, var_1_11=399/8, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L81] var_1_11 = __VERIFIER_nondet_double() [L82] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L83] var_1_13 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L85] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=42290, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L86] var_1_14 = __VERIFIER_nondet_ushort() [L87] CALL assume_abort_if_not(var_1_14 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_14 >= 32767) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L88] CALL assume_abort_if_not(var_1_14 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_14 <= 65535) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=2, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L89] var_1_15 = __VERIFIER_nondet_ushort() [L90] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L91] CALL assume_abort_if_not(var_1_15 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_15 <= 32766) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L92] CALL assume_abort_if_not(var_1_15 != 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_15 != 32767) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=32, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L93] var_1_16 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=15, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=15, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L95] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=15, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, var_1_10=6, var_1_11=7, var_1_12=4, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=15, var_1_17=322/5, var_1_18=0, var_1_19=-1, var_1_1=5, var_1_2=0, var_1_3=183/20, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L108] RET updateVariables() [L109] CALL step() [L42] var_1_17 = (var_1_8 + var_1_9) [L43] var_1_18 = var_1_15 [L44] var_1_19 = 8 [L45] unsigned long int stepLocal_1 = var_1_2; [L46] COND FALSE !(\read(var_1_13)) [L53] var_1_12 = var_1_16 [L55] var_1_1 = var_1_12 [L56] unsigned char stepLocal_0 = var_1_12; [L57] COND FALSE !(stepLocal_0 < var_1_1) [L60] COND FALSE !((- var_1_17) == (var_1_6 - var_1_7)) [L63] var_1_3 = 50.125 [L109] RET step() [L110] CALL, EXPR property() [L100-L101] return (((((var_1_1 == ((unsigned long int) var_1_12)) && ((var_1_12 < var_1_1) ? (var_1_3 == ((double) -0.5)) : (((- var_1_17) == (var_1_6 - var_1_7)) ? (var_1_3 == ((double) (var_1_8 + (var_1_9 - ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))))))) : (var_1_3 == ((double) 50.125))))) && (var_1_13 ? (((var_1_18 / (var_1_14 - var_1_15)) <= var_1_2) ? (var_1_12 == ((unsigned char) var_1_16)) : (var_1_12 == ((unsigned char) 16))) : (var_1_12 == ((unsigned char) var_1_16)))) && (var_1_17 == ((double) (var_1_8 + var_1_9)))) && (var_1_18 == ((signed long int) var_1_15))) && (var_1_19 == ((signed char) 8)) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=15, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=15, var_1_18=32766, var_1_19=8, var_1_1=15, var_1_2=0, var_1_3=401/8, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=6, var_1_11=7, var_1_12=15, var_1_13=0, var_1_14=49148, var_1_15=32766, var_1_16=15, var_1_18=32766, var_1_19=8, var_1_1=15, var_1_2=0, var_1_3=401/8, var_1_6=2, var_1_7=3, var_1_8=4, var_1_9=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 17, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:50:46,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/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_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/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_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/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_8745f16d-218b-4ddf-9468-4cd2beee3220/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 4caff26fc73638e5f12efd7078239ddc60605dcfb854b96620a2374df91a448f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:50:49,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:50:49,469 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:50:49,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:50:49,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:50:49,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:50:49,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:50:49,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:50:49,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:50:49,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:50:49,549 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:50:49,549 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:50:49,550 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:50:49,552 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:50:49,552 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:50:49,553 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:50:49,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:50:49,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:50:49,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:50:49,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:50:49,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:50:49,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:50:49,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:50:49,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:50:49,559 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:50:49,559 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:50:49,559 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:50:49,560 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:50:49,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:50:49,561 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:50:49,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:50:49,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:50:49,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:50:49,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:49,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:50:49,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:50:49,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:50:49,565 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:50:49,565 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:50:49,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:50:49,566 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:50:49,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:50:49,567 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_8745f16d-218b-4ddf-9468-4cd2beee3220/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4caff26fc73638e5f12efd7078239ddc60605dcfb854b96620a2374df91a448f [2023-11-19 04:50:49,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:50:49,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:50:49,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:50:49,949 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:50:49,950 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:50:49,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i [2023-11-19 04:50:53,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:50:53,356 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:50:53,358 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i [2023-11-19 04:50:53,370 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/data/9c1cb844d/20f41352786145c6acd19bd352f149e3/FLAG4a1f803b4 [2023-11-19 04:50:53,390 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/data/9c1cb844d/20f41352786145c6acd19bd352f149e3 [2023-11-19 04:50:53,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:50:53,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:50:53,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:53,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:50:53,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:50:53,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb5d124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53, skipping insertion in model container [2023-11-19 04:50:53,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,455 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:50:53,661 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_8745f16d-218b-4ddf-9468-4cd2beee3220/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i[915,928] [2023-11-19 04:50:53,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:53,785 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:50:53,804 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_8745f16d-218b-4ddf-9468-4cd2beee3220/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-10.i[915,928] [2023-11-19 04:50:53,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:53,870 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:50:53,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53 WrapperNode [2023-11-19 04:50:53,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:53,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:53,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:50:53,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:50:53,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,948 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-19 04:50:53,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:53,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:50:53,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:50:53,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:50:53,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:53,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:50:53,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:50:53,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:50:53,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:50:53,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (1/1) ... [2023-11-19 04:50:54,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:54,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:50:54,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:50:54,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:50:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:50:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:50:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:50:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:50:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:50:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:50:54,179 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:50:54,182 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:50:58,585 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:50:58,593 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:50:58,594 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:50:58,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:58 BoogieIcfgContainer [2023-11-19 04:50:58,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:50:58,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:50:58,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:50:58,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:50:58,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:50:53" (1/3) ... [2023-11-19 04:50:58,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330b3e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:58, skipping insertion in model container [2023-11-19 04:50:58,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:53" (2/3) ... [2023-11-19 04:50:58,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330b3e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:58, skipping insertion in model container [2023-11-19 04:50:58,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:58" (3/3) ... [2023-11-19 04:50:58,608 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-10.i [2023-11-19 04:50:58,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:50:58,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:50:58,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:50:58,690 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;@1ce89c1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:50:58,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:50:58,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:50:58,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-19 04:50:58,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:58,712 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:58,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:58,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:58,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1597969553, now seen corresponding path program 1 times [2023-11-19 04:50:58,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:50:58,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439717846] [2023-11-19 04:50:58,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:58,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:50:58,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:50:58,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:50:58,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:50:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:59,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:50:59,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:50:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2023-11-19 04:50:59,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:50:59,451 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:50:59,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439717846] [2023-11-19 04:50:59,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439717846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:50:59,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:50:59,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:50:59,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156056574] [2023-11-19 04:50:59,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:50:59,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:50:59,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:50:59,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:50:59,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:50:59,496 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:50:59,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:50:59,528 INFO L93 Difference]: Finished difference Result 97 states and 161 transitions. [2023-11-19 04:50:59,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:50:59,530 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2023-11-19 04:50:59,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:50:59,538 INFO L225 Difference]: With dead ends: 97 [2023-11-19 04:50:59,539 INFO L226 Difference]: Without dead ends: 48 [2023-11-19 04:50:59,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:50:59,547 INFO L413 NwaCegarLoop]: 68 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, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:50:59,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:50:59,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-19 04:50:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-19 04:50:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:50:59,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2023-11-19 04:50:59,595 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 108 [2023-11-19 04:50:59,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:50:59,595 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2023-11-19 04:50:59,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:50:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2023-11-19 04:50:59,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-19 04:50:59,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:59,600 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:59,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:50:59,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:50:59,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:59,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:59,813 INFO L85 PathProgramCache]: Analyzing trace with hash 648405507, now seen corresponding path program 1 times [2023-11-19 04:50:59,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:50:59,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106095781] [2023-11-19 04:50:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:59,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:50:59,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:50:59,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:50:59,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:51:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:00,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:51:00,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 04:51:00,516 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:51:00,517 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:51:00,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106095781] [2023-11-19 04:51:00,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106095781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:00,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:00,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:51:00,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294269482] [2023-11-19 04:51:00,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:00,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:00,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:51:00,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:00,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:00,528 INFO L87 Difference]: Start difference. First operand 48 states and 68 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:51:02,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:51:04,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:51:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:04,843 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2023-11-19 04:51:04,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:51:04,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-11-19 04:51:04,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:04,874 INFO L225 Difference]: With dead ends: 93 [2023-11-19 04:51:04,875 INFO L226 Difference]: Without dead ends: 48 [2023-11-19 04:51:04,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 04:51:04,878 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 3 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:04,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 125 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2023-11-19 04:51:04,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-19 04:51:04,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-19 04:51:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:51:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2023-11-19 04:51:04,893 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 108 [2023-11-19 04:51:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:04,895 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2023-11-19 04:51:04,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:51:04,896 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2023-11-19 04:51:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 04:51:04,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:04,899 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:04,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:51:05,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:51:05,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:51:05,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:05,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1320763996, now seen corresponding path program 1 times [2023-11-19 04:51:05,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:51:05,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156919642] [2023-11-19 04:51:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:05,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:51:05,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:51:05,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:51:05,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8745f16d-218b-4ddf-9468-4cd2beee3220/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:51:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:05,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 04:51:05,729 INFO L285 TraceCheckSpWp]: Computing forward predicates...