./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh --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 9167d3514d92876f080e6f73b391286588106b09c0456cd9b66d9fc0d1e7cefe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:56:23,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:56:23,677 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:56:23,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:56:23,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:56:23,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:56:23,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:56:23,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:56:23,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:56:23,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:56:23,714 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:56:23,715 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:56:23,715 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:56:23,716 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:56:23,716 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:56:23,717 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:56:23,718 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:56:23,718 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:56:23,719 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:56:23,719 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:56:23,720 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:56:23,721 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:56:23,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:56:23,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:56:23,723 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:56:23,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:56:23,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:56:23,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:56:23,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:56:23,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:56:23,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:56:23,726 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:56:23,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:56:23,727 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:56:23,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:56:23,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:56:23,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:56:23,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:56:23,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:56:23,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:56:23,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:56:23,729 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:56:23,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:56:23,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:56:23,730 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:56:23,730 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:56:23,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:56:23,730 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_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9167d3514d92876f080e6f73b391286588106b09c0456cd9b66d9fc0d1e7cefe [2023-12-02 19:56:23,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:56:23,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:56:23,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:56:23,999 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:56:23,999 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:56:24,000 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i [2023-12-02 19:56:27,034 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:56:27,225 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:56:27,226 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i [2023-12-02 19:56:27,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/data/2830928e5/5652eb0323bc472d89540f7d768082bc/FLAG62f57e712 [2023-12-02 19:56:27,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/data/2830928e5/5652eb0323bc472d89540f7d768082bc [2023-12-02 19:56:27,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:56:27,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:56:27,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:56:27,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:56:27,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:56:27,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bc4b25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27, skipping insertion in model container [2023-12-02 19:56:27,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,305 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:56:27,482 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_0f72c578-75fb-4bb9-a061-6be19a565d18/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i[915,928] [2023-12-02 19:56:27,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:56:27,549 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:56:27,565 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_0f72c578-75fb-4bb9-a061-6be19a565d18/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i[915,928] [2023-12-02 19:56:27,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:56:27,610 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:56:27,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27 WrapperNode [2023-12-02 19:56:27,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:56:27,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:56:27,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:56:27,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:56:27,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,665 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2023-12-02 19:56:27,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:56:27,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:56:27,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:56:27,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:56:27,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:56:27,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:56:27,703 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:56:27,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:56:27,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (1/1) ... [2023-12-02 19:56:27,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:56:27,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:56:27,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:56:27,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:56:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:56:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:56:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:56:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:56:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:56:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:56:27,897 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:56:27,900 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:56:28,153 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:56:28,301 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:56:28,302 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:56:28,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:56:28 BoogieIcfgContainer [2023-12-02 19:56:28,304 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:56:28,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:56:28,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:56:28,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:56:28,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:56:27" (1/3) ... [2023-12-02 19:56:28,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5e50ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:56:28, skipping insertion in model container [2023-12-02 19:56:28,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:27" (2/3) ... [2023-12-02 19:56:28,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5e50ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:56:28, skipping insertion in model container [2023-12-02 19:56:28,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:56:28" (3/3) ... [2023-12-02 19:56:28,316 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-65.i [2023-12-02 19:56:28,341 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:56:28,341 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:56:28,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:56:28,411 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;@5460a6ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:56:28,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:56:28,417 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) [2023-12-02 19:56:28,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 19:56:28,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:56:28,428 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] [2023-12-02 19:56:28,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:56:28,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:56:28,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1825203274, now seen corresponding path program 1 times [2023-12-02 19:56:28,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:56:28,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483024988] [2023-12-02 19:56:28,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:56:28,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:56:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:56:28,766 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 19:56:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:56:28,915 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 19:56:28,917 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 19:56:28,918 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 19:56:28,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:56:28,926 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 19:56:28,931 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:56:28,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:56:28 BoogieIcfgContainer [2023-12-02 19:56:28,993 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:56:28,994 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:56:28,994 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:56:28,995 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:56:28,995 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:56:28" (3/4) ... [2023-12-02 19:56:28,997 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 19:56:28,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:56:29,000 INFO L158 Benchmark]: Toolchain (without parser) took 1737.14ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 116.8MB in the beginning and 136.7MB in the end (delta: -19.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-12-02 19:56:29,001 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:56:29,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.59ms. Allocated memory is still 155.2MB. Free memory was 116.8MB in the beginning and 104.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 19:56:29,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.60ms. Allocated memory is still 155.2MB. Free memory was 104.2MB in the beginning and 102.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:56:29,003 INFO L158 Benchmark]: Boogie Preprocessor took 35.62ms. Allocated memory is still 155.2MB. Free memory was 102.5MB in the beginning and 101.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:56:29,004 INFO L158 Benchmark]: RCFGBuilder took 600.90ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 77.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-02 19:56:29,004 INFO L158 Benchmark]: TraceAbstraction took 685.46ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 76.5MB in the beginning and 136.7MB in the end (delta: -60.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:56:29,005 INFO L158 Benchmark]: Witness Printer took 4.86ms. Allocated memory is still 186.6MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:56:29,008 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.59ms. Allocated memory is still 155.2MB. Free memory was 116.8MB in the beginning and 104.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.60ms. Allocated memory is still 155.2MB. Free memory was 104.2MB in the beginning and 102.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.62ms. Allocated memory is still 155.2MB. Free memory was 102.5MB in the beginning and 101.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 600.90ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 77.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 685.46ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 76.5MB in the beginning and 136.7MB in the end (delta: -60.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.86ms. Allocated memory is still 186.6MB. Free memory is still 136.7MB. 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 someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someUnaryFLOAToperation at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 1000000000.1; [L23] float var_1_2 = 256.75; [L24] unsigned char var_1_3 = 1; [L25] float var_1_4 = 8.2; [L26] signed long int var_1_5 = -32; [L27] signed long int var_1_6 = 4; [L28] signed char var_1_7 = 5; [L29] signed char var_1_8 = 64; [L30] signed char var_1_9 = 16; [L31] signed char var_1_10 = 64; [L32] signed char var_1_11 = -64; [L33] double var_1_12 = 15.9; [L34] double var_1_13 = 1.5; [L35] double var_1_14 = 10000000000.375; [L36] unsigned char var_1_15 = 1; [L99] isInitial = 1 [L100] FCALL initially() [L101] int k_loop; [L102] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_2=1027/4, var_1_3=1, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L102] COND TRUE k_loop < 1 [L103] FCALL updateLastVariables() [L104] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_float() [L64] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=1, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=1, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L65] var_1_3 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L67] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L68] var_1_4 = __VERIFIER_nondet_float() [L69] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L70] var_1_6 = __VERIFIER_nondet_long() [L71] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=64, var_1_9=16] [L72] CALL assume_abort_if_not(var_1_6 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_6 <= 1073741823) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=64, var_1_9=16] [L73] var_1_8 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_8 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=16] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_8 >= 63) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=16] [L75] CALL assume_abort_if_not(var_1_8 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=16] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_8 <= 127) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=16] [L76] var_1_9 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L78] CALL assume_abort_if_not(var_1_9 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 <= 63) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L79] var_1_10 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_10 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=-127, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_10 >= -127) VAL [isInitial=1, var_1_10=-127, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L81] CALL assume_abort_if_not(var_1_10 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=-127, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_10 <= 126) VAL [isInitial=1, var_1_10=-127, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L82] var_1_12 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-127, var_1_11=-64, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-127, var_1_11=-64, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L84] var_1_13 = __VERIFIER_nondet_double() [L85] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427387900e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-127, var_1_11=-64, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427387900e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-127, var_1_11=-64, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L86] var_1_14 = __VERIFIER_nondet_double() [L87] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427387900e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-127, var_1_11=-64, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427387900e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-127, var_1_11=-64, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L88] var_1_15 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-127, var_1_11=-64, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=-127, var_1_11=-64, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L90] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-127, var_1_11=-64, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=-127, var_1_11=-64, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L104] RET updateVariables() [L105] CALL step() [L40] COND FALSE !(0.625f > var_1_2) [L45] var_1_1 = ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) [L47] COND FALSE !(\read(var_1_3)) [L50] signed long int stepLocal_0 = var_1_6; [L51] COND FALSE !(((64 - 25) - (var_1_8 - var_1_9)) >= stepLocal_0) [L54] COND FALSE !((var_1_12 - (var_1_13 + var_1_14)) <= var_1_1) [L105] RET step() [L106] CALL, EXPR property() [L95-L96] return ((((0.625f > var_1_2) ? (var_1_3 ? (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : 1) : (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)))))) && (var_1_3 ? (var_1_5 == ((signed long int) ((10 + var_1_6) - 2))) : 1)) && ((((64 - 25) - (var_1_8 - var_1_9)) >= var_1_6) ? (var_1_7 == ((signed char) (((((var_1_9 - 32)) > (var_1_10)) ? ((var_1_9 - 32)) : (var_1_10))))) : 1)) && (((var_1_12 - (var_1_13 + var_1_14)) <= var_1_1) ? ((var_1_3 && var_1_15) ? (var_1_11 == ((signed char) var_1_10)) : (var_1_11 == ((signed char) var_1_9))) : 1) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-127, var_1_11=-64, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-127, var_1_11=-64, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=0, var_1_7=5, var_1_8=77, var_1_9=37] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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: 0.0s SsaConstructionTime, 0.2s 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 [2023-12-02 19:56:29,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh --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 9167d3514d92876f080e6f73b391286588106b09c0456cd9b66d9fc0d1e7cefe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:56:31,309 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:56:31,391 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 19:56:31,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:56:31,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:56:31,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:56:31,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:56:31,429 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:56:31,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:56:31,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:56:31,431 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:56:31,432 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:56:31,432 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:56:31,433 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:56:31,433 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:56:31,434 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:56:31,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:56:31,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:56:31,436 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:56:31,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:56:31,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:56:31,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:56:31,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:56:31,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:56:31,439 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 19:56:31,440 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 19:56:31,440 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 19:56:31,441 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:56:31,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:56:31,442 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:56:31,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:56:31,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 19:56:31,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:56:31,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:56:31,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:56:31,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:56:31,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:56:31,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:56:31,445 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 19:56:31,445 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 19:56:31,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:56:31,446 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:56:31,446 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:56:31,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:56:31,446 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_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9167d3514d92876f080e6f73b391286588106b09c0456cd9b66d9fc0d1e7cefe [2023-12-02 19:56:31,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:56:31,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:56:31,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:56:31,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:56:31,742 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:56:31,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i [2023-12-02 19:56:34,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:56:35,239 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:56:35,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i [2023-12-02 19:56:35,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/data/8e67137bd/e88bdbfb2fa4482c85a84239f99f07f5/FLAGc3e188ee6 [2023-12-02 19:56:35,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/data/8e67137bd/e88bdbfb2fa4482c85a84239f99f07f5 [2023-12-02 19:56:35,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:56:35,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:56:35,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:56:35,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:56:35,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:56:35,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589a297f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35, skipping insertion in model container [2023-12-02 19:56:35,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,600 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:56:35,773 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_0f72c578-75fb-4bb9-a061-6be19a565d18/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i[915,928] [2023-12-02 19:56:35,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:56:35,837 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:56:35,852 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_0f72c578-75fb-4bb9-a061-6be19a565d18/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-65.i[915,928] [2023-12-02 19:56:35,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:56:35,898 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:56:35,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35 WrapperNode [2023-12-02 19:56:35,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:56:35,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:56:35,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:56:35,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:56:35,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,954 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-12-02 19:56:35,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:56:35,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:56:35,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:56:35,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:56:35,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:35,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:56:36,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:56:36,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:56:36,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:56:36,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (1/1) ... [2023-12-02 19:56:36,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:56:36,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:56:36,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:56:36,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:56:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:56:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 19:56:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:56:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:56:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:56:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:56:36,185 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:56:36,188 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:56:40,944 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:56:41,001 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:56:41,001 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:56:41,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:56:41 BoogieIcfgContainer [2023-12-02 19:56:41,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:56:41,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:56:41,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:56:41,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:56:41,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:56:35" (1/3) ... [2023-12-02 19:56:41,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1263d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:56:41, skipping insertion in model container [2023-12-02 19:56:41,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:56:35" (2/3) ... [2023-12-02 19:56:41,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1263d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:56:41, skipping insertion in model container [2023-12-02 19:56:41,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:56:41" (3/3) ... [2023-12-02 19:56:41,012 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-65.i [2023-12-02 19:56:41,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:56:41,034 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:56:41,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:56:41,102 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;@2ec31bb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:56:41,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:56:41,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 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) [2023-12-02 19:56:41,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 19:56:41,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:56:41,125 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] [2023-12-02 19:56:41,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:56:41,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:56:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2049265687, now seen corresponding path program 1 times [2023-12-02 19:56:41,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:56:41,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609255355] [2023-12-02 19:56:41,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:56:41,149 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 [2023-12-02 19:56:41,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:56:41,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 19:56:41,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:56:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:56:41,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 19:56:41,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:56:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-12-02 19:56:41,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:56:41,660 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:56:41,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609255355] [2023-12-02 19:56:41,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609255355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:56:41,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:56:41,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:56:41,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837164866] [2023-12-02 19:56:41,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:56:41,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:56:41,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:56:41,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:56:41,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:56:41,711 INFO L87 Difference]: Start difference. First operand has 48 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:56:43,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:56:43,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:56:43,863 INFO L93 Difference]: Finished difference Result 95 states and 162 transitions. [2023-12-02 19:56:43,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:56:43,866 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106 [2023-12-02 19:56:43,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:56:43,874 INFO L225 Difference]: With dead ends: 95 [2023-12-02 19:56:43,874 INFO L226 Difference]: Without dead ends: 46 [2023-12-02 19:56:43,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:56:43,882 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:56:43,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-12-02 19:56:43,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-02 19:56:43,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-12-02 19:56:43,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 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) [2023-12-02 19:56:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 68 transitions. [2023-12-02 19:56:43,932 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 68 transitions. Word has length 106 [2023-12-02 19:56:43,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:56:43,932 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 68 transitions. [2023-12-02 19:56:43,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:56:43,933 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2023-12-02 19:56:43,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 19:56:43,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:56:43,938 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] [2023-12-02 19:56:43,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:56:44,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:56:44,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:56:44,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:56:44,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1011480739, now seen corresponding path program 1 times [2023-12-02 19:56:44,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:56:44,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012425725] [2023-12-02 19:56:44,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:56:44,142 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 [2023-12-02 19:56:44,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:56:44,143 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 19:56:44,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f72c578-75fb-4bb9-a061-6be19a565d18/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:56:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:56:44,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 19:56:44,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:57:56,412 WARN L293 SmtUtils]: Spent 18.87s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)