./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.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_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91 --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 2d8b2be6d6ac251f6f2682006f5d119ef2b6d6ee8107fbc3310af784e3db17b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:50:19,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:50:19,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:50:19,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:50:19,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:50:19,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:50:19,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:50:19,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:50:19,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:50:19,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:50:19,494 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:50:19,495 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:50:19,495 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:50:19,497 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:50:19,498 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:50:19,498 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:50:19,498 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:50:19,499 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:50:19,499 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:50:19,500 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:50:19,500 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:50:19,501 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:50:19,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:50:19,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:50:19,503 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:50:19,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:50:19,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:50:19,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:50:19,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:50:19,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:50:19,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:50:19,508 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:50:19,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:50:19,508 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:50:19,509 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:50:19,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:50:19,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:50:19,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:19,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:50:19,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:50:19,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:50:19,512 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:50:19,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:50:19,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:50:19,513 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:50:19,513 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:50:19,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:50:19,514 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_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d8b2be6d6ac251f6f2682006f5d119ef2b6d6ee8107fbc3310af784e3db17b0 [2023-11-24 23:50:19,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:50:19,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:50:19,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:50:19,863 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:50:19,864 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:50:19,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i [2023-11-24 23:50:23,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:50:23,337 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:50:23,338 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i [2023-11-24 23:50:23,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/data/3b69ceeaf/f81e92ee570c48b6af1cae0df58f8b25/FLAGc7ad90d32 [2023-11-24 23:50:23,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/data/3b69ceeaf/f81e92ee570c48b6af1cae0df58f8b25 [2023-11-24 23:50:23,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:50:23,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:50:23,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:23,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:50:23,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:50:23,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:23,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370a8c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23, skipping insertion in model container [2023-11-24 23:50:23,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:23,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:50:23,663 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_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i[915,928] [2023-11-24 23:50:23,779 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:23,809 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:50:23,829 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_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i[915,928] [2023-11-24 23:50:23,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:23,902 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:50:23,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23 WrapperNode [2023-11-24 23:50:23,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:23,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:23,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:50:23,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:50:23,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:23,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:23,985 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 148 [2023-11-24 23:50:23,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:23,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:50:23,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:50:23,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:50:23,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:23,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:24,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:24,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:24,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:24,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:24,029 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:24,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:24,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:50:24,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:50:24,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:50:24,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:50:24,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (1/1) ... [2023-11-24 23:50:24,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:24,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:24,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:50:24,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:50:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:50:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:50:24,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:50:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:50:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:50:24,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:50:24,240 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:50:24,242 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:50:24,709 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:50:24,897 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:50:24,898 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:50:24,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:50:24 BoogieIcfgContainer [2023-11-24 23:50:24,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:50:24,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:50:24,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:50:24,906 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:50:24,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:50:23" (1/3) ... [2023-11-24 23:50:24,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4170e939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:50:24, skipping insertion in model container [2023-11-24 23:50:24,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:23" (2/3) ... [2023-11-24 23:50:24,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4170e939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:50:24, skipping insertion in model container [2023-11-24 23:50:24,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:50:24" (3/3) ... [2023-11-24 23:50:24,910 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-91.i [2023-11-24 23:50:24,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:50:24,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:50:24,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:50:25,002 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;@2a85e502, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:50:25,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:50:25,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-24 23:50:25,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 23:50:25,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:25,024 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:50:25,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:25,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:25,032 INFO L85 PathProgramCache]: Analyzing trace with hash 516667646, now seen corresponding path program 1 times [2023-11-24 23:50:25,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:50:25,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486464087] [2023-11-24 23:50:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:25,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:50:25,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:50:25,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [718427943] [2023-11-24 23:50:25,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:25,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:50:25,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:25,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:50:25,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:50:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:50:25,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:50:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:50:25,638 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:50:25,641 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:50:25,642 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:50:25,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:50:25,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:50:25,858 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:50:25,868 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:50:26,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:50:26 BoogieIcfgContainer [2023-11-24 23:50:26,024 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:50:26,025 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:50:26,026 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:50:26,026 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:50:26,026 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:50:24" (3/4) ... [2023-11-24 23:50:26,035 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:50:26,037 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:50:26,038 INFO L158 Benchmark]: Toolchain (without parser) took 2659.14ms. Allocated memory is still 186.6MB. Free memory was 139.8MB in the beginning and 96.4MB in the end (delta: 43.5MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2023-11-24 23:50:26,039 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:50:26,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.12ms. Allocated memory is still 186.6MB. Free memory was 139.4MB in the beginning and 125.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:50:26,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.05ms. Allocated memory is still 186.6MB. Free memory was 125.8MB in the beginning and 121.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:50:26,050 INFO L158 Benchmark]: Boogie Preprocessor took 53.58ms. Allocated memory is still 186.6MB. Free memory was 121.6MB in the beginning and 119.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:50:26,052 INFO L158 Benchmark]: RCFGBuilder took 859.41ms. Allocated memory is still 186.6MB. Free memory was 119.5MB in the beginning and 134.8MB in the end (delta: -15.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-24 23:50:26,053 INFO L158 Benchmark]: TraceAbstraction took 1122.19ms. Allocated memory is still 186.6MB. Free memory was 134.1MB in the beginning and 96.4MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-24 23:50:26,054 INFO L158 Benchmark]: Witness Printer took 11.43ms. Allocated memory is still 186.6MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:50:26,064 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.12ms. Allocated memory is still 186.6MB. Free memory was 139.4MB in the beginning and 125.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.05ms. Allocated memory is still 186.6MB. Free memory was 125.8MB in the beginning and 121.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.58ms. Allocated memory is still 186.6MB. Free memory was 121.6MB in the beginning and 119.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 859.41ms. Allocated memory is still 186.6MB. Free memory was 119.5MB in the beginning and 134.8MB in the end (delta: -15.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1122.19ms. Allocated memory is still 186.6MB. Free memory was 134.1MB in the beginning and 96.4MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 11.43ms. Allocated memory is still 186.6MB. Free memory is still 96.4MB. 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 67, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -64; [L23] signed short int var_1_5 = 8; [L24] signed short int var_1_6 = 8; [L25] signed short int var_1_7 = 5; [L26] signed short int var_1_8 = 0; [L27] signed char var_1_9 = 5; [L28] signed char var_1_11 = 16; [L29] signed short int var_1_12 = 25; [L30] signed short int var_1_13 = 64; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 16; [L33] float var_1_17 = 1.2; [L34] float var_1_18 = 5.8; [L35] float var_1_19 = 10.25; [L36] float var_1_20 = 2.5; [L37] signed short int var_1_21 = 200; [L38] unsigned char var_1_24 = 1; [L39] unsigned char var_1_25 = 0; [L40] signed char var_1_26 = -5; [L41] signed short int last_1_var_1_1 = -64; [L42] signed short int last_1_var_1_13 = 64; [L43] unsigned char last_1_var_1_15 = 1; [L44] signed char last_1_var_1_26 = -5; [L137] isInitial = 1 [L138] FCALL initially() [L139] COND TRUE 1 [L140] CALL updateLastVariables() [L127] last_1_var_1_1 = var_1_1 [L128] last_1_var_1_13 = var_1_13 [L129] last_1_var_1_15 = var_1_15 [L130] last_1_var_1_26 = var_1_26 [L140] RET updateLastVariables() [L141] CALL updateVariables() [L94] var_1_5 = __VERIFIER_nondet_short() [L95] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=8, var_1_7=5, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=8, var_1_7=5, var_1_8=0, var_1_9=5] [L96] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=8, var_1_7=5, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=8, var_1_7=5, var_1_8=0, var_1_9=5] [L97] var_1_6 = __VERIFIER_nondet_short() [L98] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=5, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=5, var_1_8=0, var_1_9=5] [L99] CALL assume_abort_if_not(var_1_6 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=5, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_6 <= 16383) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=5, var_1_8=0, var_1_9=5] [L100] var_1_7 = __VERIFIER_nondet_short() [L101] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L102] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L103] var_1_8 = __VERIFIER_nondet_short() [L104] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L105] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=16, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L106] var_1_11 = __VERIFIER_nondet_char() [L107] CALL assume_abort_if_not(var_1_11 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_11 >= -127) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L108] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=25, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L109] var_1_12 = __VERIFIER_nondet_short() [L110] CALL assume_abort_if_not(var_1_12 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_12 >= -32768) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L111] CALL assume_abort_if_not(var_1_12 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_12 <= 32767) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L112] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=16, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L113] var_1_16 = __VERIFIER_nondet_uchar() [L114] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L115] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_18=29/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L116] var_1_18 = __VERIFIER_nondet_float() [L117] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_19=41/4, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L118] var_1_19 = __VERIFIER_nondet_float() [L119] CALL assume_abort_if_not((var_1_19 >= 0.0F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not((var_1_19 >= 0.0F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_1=-64, var_1_20=5/2, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L120] var_1_20 = __VERIFIER_nondet_float() [L121] CALL assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_1=-64, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_1=-64, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L122] var_1_25 = __VERIFIER_nondet_uchar() [L123] CALL assume_abort_if_not(var_1_25 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_1=-64, var_1_21=200, var_1_24=1, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_25 >= 0) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_1=-64, var_1_21=200, var_1_24=1, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L124] CALL assume_abort_if_not(var_1_25 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_1=-64, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_25 <= 0) VAL [isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=1, var_1_16=25, var_1_17=6/5, var_1_1=-64, var_1_21=200, var_1_24=1, var_1_25=0, var_1_26=-5, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=5] [L141] RET updateVariables() [L142] CALL step() [L48] COND FALSE !(last_1_var_1_13 == last_1_var_1_1) [L55] signed long int stepLocal_3 = (var_1_6 + var_1_8) - var_1_5; [L56] signed short int stepLocal_2 = var_1_1; [L57] COND TRUE var_1_11 < stepLocal_2 [L58] COND TRUE var_1_7 == stepLocal_3 [L59] var_1_15 = var_1_16 [L66] COND TRUE var_1_11 < 5 [L67] var_1_17 = ((((var_1_18) > ((var_1_19 - var_1_20))) ? (var_1_18) : ((var_1_19 - var_1_20)))) [L69] var_1_24 = var_1_25 [L70] var_1_26 = var_1_11 [L71] COND FALSE !(\read(var_1_24)) [L76] var_1_21 = (var_1_15 - 2) [L78] unsigned char stepLocal_0 = var_1_15; [L79] COND FALSE !(\read(var_1_24)) [L82] COND FALSE !(stepLocal_0 <= (var_1_21 / var_1_12)) [L85] var_1_9 = var_1_11 [L88] signed long int stepLocal_1 = var_1_1 * (var_1_15 % var_1_12); [L89] COND FALSE !((- var_1_15) >= stepLocal_1) [L142] RET step() [L143] CALL, EXPR property() [L133-L134] return ((((((((last_1_var_1_13 == last_1_var_1_1) ? ((last_1_var_1_1 <= ((((last_1_var_1_13) > (last_1_var_1_26)) ? (last_1_var_1_13) : (last_1_var_1_26)))) ? (var_1_1 == ((signed short int) (last_1_var_1_1 + (((((last_1_var_1_15 - last_1_var_1_15)) < ((last_1_var_1_15 - last_1_var_1_15))) ? ((last_1_var_1_15 - last_1_var_1_15)) : ((last_1_var_1_15 - last_1_var_1_15))))))) : (var_1_1 == ((signed short int) (((((last_1_var_1_15 - last_1_var_1_15)) < (((last_1_var_1_15 - last_1_var_1_15) + -256))) ? ((last_1_var_1_15 - last_1_var_1_15)) : (((last_1_var_1_15 - last_1_var_1_15) + -256))))))) : 1) && (var_1_24 ? (var_1_9 == ((signed char) var_1_11)) : ((var_1_15 <= (var_1_21 / var_1_12)) ? (var_1_9 == ((signed char) var_1_11)) : (var_1_9 == ((signed char) var_1_11))))) && (((- var_1_15) >= (var_1_1 * (var_1_15 % var_1_12))) ? (var_1_13 == ((signed short int) var_1_26)) : 1)) && ((var_1_11 < var_1_1) ? ((var_1_7 == ((var_1_6 + var_1_8) - var_1_5)) ? (var_1_15 == ((unsigned char) var_1_16)) : (var_1_15 == ((unsigned char) var_1_16))) : (var_1_15 == ((unsigned char) var_1_16)))) && ((var_1_11 < 5) ? (var_1_17 == ((float) ((((var_1_18) > ((var_1_19 - var_1_20))) ? (var_1_18) : ((var_1_19 - var_1_20)))))) : 1)) && (var_1_24 ? ((var_1_24 && var_1_24) ? (var_1_21 == ((signed short int) var_1_15)) : 1) : (var_1_21 == ((signed short int) (var_1_15 - 2))))) && (var_1_24 == ((unsigned char) var_1_25))) && (var_1_26 == ((signed char) var_1_11)) ; [L143] RET, EXPR property() [L143] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=25, var_1_16=25, var_1_17=2, var_1_18=2, var_1_1=-64, var_1_21=23, var_1_24=0, var_1_25=0, var_1_26=-65, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=-65] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=64, last_1_var_1_15=1, last_1_var_1_1=-64, last_1_var_1_26=-5, var_1_11=-65, var_1_12=5, var_1_13=64, var_1_15=25, var_1_16=25, var_1_17=2, var_1_18=2, var_1_1=-64, var_1_21=23, var_1_24=0, var_1_25=0, var_1_26=-65, var_1_5=16383, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=-65] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 20, 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=40occurred 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, 75 NumberOfCodeBlocks, 75 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 [2023-11-24 23:50:26,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91 --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 2d8b2be6d6ac251f6f2682006f5d119ef2b6d6ee8107fbc3310af784e3db17b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:50:28,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:50:29,032 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:50:29,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:50:29,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:50:29,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:50:29,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:50:29,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:50:29,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:50:29,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:50:29,074 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:50:29,075 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:50:29,075 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:50:29,076 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:50:29,077 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:50:29,077 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:50:29,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:50:29,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:50:29,080 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:50:29,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:50:29,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:50:29,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:50:29,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:50:29,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:50:29,083 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:50:29,084 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:50:29,084 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:50:29,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:50:29,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:50:29,086 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:50:29,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:50:29,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:50:29,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:50:29,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:50:29,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:29,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:50:29,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:50:29,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:50:29,090 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:50:29,091 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:50:29,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:50:29,092 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:50:29,093 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:50:29,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:50:29,093 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_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d8b2be6d6ac251f6f2682006f5d119ef2b6d6ee8107fbc3310af784e3db17b0 [2023-11-24 23:50:29,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:50:29,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:50:29,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:50:29,579 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:50:29,579 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:50:29,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i [2023-11-24 23:50:33,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:50:33,353 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:50:33,354 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i [2023-11-24 23:50:33,367 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/data/cf22b354a/eefac412eccd4ab497aa4c05348ce754/FLAG76a5dd045 [2023-11-24 23:50:33,387 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/data/cf22b354a/eefac412eccd4ab497aa4c05348ce754 [2023-11-24 23:50:33,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:50:33,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:50:33,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:33,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:50:33,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:50:33,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:33,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6752e862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33, skipping insertion in model container [2023-11-24 23:50:33,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:33,461 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:50:33,697 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_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i[915,928] [2023-11-24 23:50:33,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:33,782 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:50:33,797 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_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-91.i[915,928] [2023-11-24 23:50:33,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:33,914 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:50:33,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33 WrapperNode [2023-11-24 23:50:33,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:33,916 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:33,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:50:33,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:50:33,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:33,947 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:33,985 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2023-11-24 23:50:33,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:33,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:50:33,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:50:33,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:50:33,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:33,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:34,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:34,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:34,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:34,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:34,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:34,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:34,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:50:34,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:50:34,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:50:34,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:50:34,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (1/1) ... [2023-11-24 23:50:34,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:34,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:34,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:50:34,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:50:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:50:34,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:50:34,144 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:50:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:50:34,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:50:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:50:34,301 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:50:34,307 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:50:34,975 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:50:35,081 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:50:35,081 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:50:35,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:50:35 BoogieIcfgContainer [2023-11-24 23:50:35,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:50:35,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:50:35,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:50:35,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:50:35,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:50:33" (1/3) ... [2023-11-24 23:50:35,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5618e72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:50:35, skipping insertion in model container [2023-11-24 23:50:35,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:33" (2/3) ... [2023-11-24 23:50:35,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5618e72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:50:35, skipping insertion in model container [2023-11-24 23:50:35,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:50:35" (3/3) ... [2023-11-24 23:50:35,092 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-91.i [2023-11-24 23:50:35,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:50:35,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:50:35,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:50:35,184 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;@6bbcf3ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:50:35,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:50:35,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-24 23:50:35,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-24 23:50:35,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:35,209 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:50:35,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:35,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:35,217 INFO L85 PathProgramCache]: Analyzing trace with hash 95519110, now seen corresponding path program 1 times [2023-11-24 23:50:35,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:50:35,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848547743] [2023-11-24 23:50:35,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:35,242 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 [2023-11-24 23:50:35,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:50:35,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:50:35,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:50:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:35,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:50:35,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2023-11-24 23:50:35,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:50:35,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:50:35,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848547743] [2023-11-24 23:50:35,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848547743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:35,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:35,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:50:35,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849425859] [2023-11-24 23:50:35,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:35,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:50:35,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:50:35,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:50:35,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:50:35,897 INFO L87 Difference]: Start difference. First operand has 58 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-24 23:50:36,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:36,374 INFO L93 Difference]: Finished difference Result 113 states and 198 transitions. [2023-11-24 23:50:36,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:50:36,386 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 126 [2023-11-24 23:50:36,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:36,395 INFO L225 Difference]: With dead ends: 113 [2023-11-24 23:50:36,395 INFO L226 Difference]: Without dead ends: 56 [2023-11-24 23:50:36,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:50:36,404 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:36,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:50:36,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-24 23:50:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-24 23:50:36,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-24 23:50:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 85 transitions. [2023-11-24 23:50:36,459 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 85 transitions. Word has length 126 [2023-11-24 23:50:36,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:36,461 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 85 transitions. [2023-11-24 23:50:36,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-24 23:50:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 85 transitions. [2023-11-24 23:50:36,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-24 23:50:36,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:36,466 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:50:36,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:50:36,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:50:36,667 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:36,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:36,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1593338946, now seen corresponding path program 1 times [2023-11-24 23:50:36,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:50:36,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883393796] [2023-11-24 23:50:36,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:36,670 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 [2023-11-24 23:50:36,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:50:36,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:50:36,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:50:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:37,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:50:37,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:37,223 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-24 23:50:37,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:50:37,223 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:50:37,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883393796] [2023-11-24 23:50:37,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883393796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:37,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:37,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 23:50:37,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253900524] [2023-11-24 23:50:37,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:37,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:50:37,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:50:37,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:50:37,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:50:37,238 INFO L87 Difference]: Start difference. First operand 56 states and 85 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-24 23:50:38,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:38,414 INFO L93 Difference]: Finished difference Result 169 states and 248 transitions. [2023-11-24 23:50:38,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-24 23:50:38,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 126 [2023-11-24 23:50:38,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:38,422 INFO L225 Difference]: With dead ends: 169 [2023-11-24 23:50:38,424 INFO L226 Difference]: Without dead ends: 114 [2023-11-24 23:50:38,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:50:38,430 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 103 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:38,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 252 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 23:50:38,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-24 23:50:38,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 59. [2023-11-24 23:50:38,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-24 23:50:38,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 84 transitions. [2023-11-24 23:50:38,476 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 84 transitions. Word has length 126 [2023-11-24 23:50:38,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:38,481 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 84 transitions. [2023-11-24 23:50:38,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-24 23:50:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 84 transitions. [2023-11-24 23:50:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-24 23:50:38,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:38,492 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:50:38,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:50:38,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:50:38,702 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:38,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash -490637364, now seen corresponding path program 1 times [2023-11-24 23:50:38,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:50:38,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023235298] [2023-11-24 23:50:38,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:38,707 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 [2023-11-24 23:50:38,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:50:38,708 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:50:38,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7570c-ad8e-4fe4-a2cd-4617790af6e3/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:50:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:39,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 23:50:39,105 INFO L285 TraceCheckSpWp]: Computing forward predicates...