./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ae547c4902f7e11f87d7994462416820855bf00f967c780d5442969e651ce2e2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:58:56,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:58:56,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:58:56,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:58:56,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:58:56,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:58:56,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:58:56,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:58:56,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:58:56,207 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:58:56,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:58:56,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:58:56,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:58:56,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:58:56,210 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:58:56,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:58:56,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:58:56,212 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:58:56,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:58:56,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:58:56,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:58:56,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:58:56,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:58:56,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:58:56,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:58:56,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:58:56,216 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:58:56,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:58:56,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:58:56,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:58:56,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:58:56,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:58:56,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:58:56,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:58:56,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:58:56,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:58:56,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:58:56,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:58:56,220 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:58:56,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:58:56,220 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:58:56,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:58:56,221 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae547c4902f7e11f87d7994462416820855bf00f967c780d5442969e651ce2e2 [2023-11-29 04:58:56,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:58:56,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:58:56,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:58:56,480 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:58:56,481 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:58:56,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i [2023-11-29 04:58:59,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:58:59,393 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:58:59,393 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i [2023-11-29 04:58:59,401 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/data/37dfb9db1/07441d7778d0400284e3faea4515cd27/FLAG68ff13960 [2023-11-29 04:58:59,412 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/data/37dfb9db1/07441d7778d0400284e3faea4515cd27 [2023-11-29 04:58:59,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:58:59,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:58:59,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:58:59,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:58:59,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:58:59,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@603b558f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59, skipping insertion in model container [2023-11-29 04:58:59,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,444 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:58:59,566 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_3ad0f0c6-4193-4721-8226-1dc05db1b481/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i[914,927] [2023-11-29 04:58:59,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:58:59,606 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:58:59,619 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_3ad0f0c6-4193-4721-8226-1dc05db1b481/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i[914,927] [2023-11-29 04:58:59,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:58:59,649 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:58:59,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59 WrapperNode [2023-11-29 04:58:59,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:58:59,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:58:59,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:58:59,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:58:59,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,686 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127 [2023-11-29 04:58:59,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:58:59,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:58:59,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:58:59,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:58:59,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,698 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,711 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:58:59,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,725 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:58:59,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:58:59,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:58:59,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:58:59,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (1/1) ... [2023-11-29 04:58:59,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:58:59,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:58:59,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:58:59,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:58:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:58:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:58:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:58:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:58:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:58:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:58:59,867 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:58:59,868 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:59:00,072 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:59:00,109 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:59:00,110 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:59:00,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:59:00 BoogieIcfgContainer [2023-11-29 04:59:00,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:59:00,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:59:00,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:59:00,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:59:00,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:58:59" (1/3) ... [2023-11-29 04:59:00,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4702aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:59:00, skipping insertion in model container [2023-11-29 04:59:00,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:58:59" (2/3) ... [2023-11-29 04:59:00,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4702aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:59:00, skipping insertion in model container [2023-11-29 04:59:00,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:59:00" (3/3) ... [2023-11-29 04:59:00,120 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-1.i [2023-11-29 04:59:00,134 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:59:00,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:59:00,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:59:00,185 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=PETRI_NET, 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;@27fd9632, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:59:00,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:59:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 35 states have internal predecessors, (53), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 04:59:00,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 04:59:00,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:59:00,198 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:59:00,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:59:00,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:59:00,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1391929019, now seen corresponding path program 1 times [2023-11-29 04:59:00,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:59:00,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345917189] [2023-11-29 04:59:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:59:00,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:59:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:59:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:59:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 04:59:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 04:59:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 04:59:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 04:59:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 04:59:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 04:59:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 04:59:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:00,460 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 04:59:00,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:59:00,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345917189] [2023-11-29 04:59:00,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345917189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:59:00,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:59:00,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:59:00,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895246634] [2023-11-29 04:59:00,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:59:00,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:59:00,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:59:00,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:59:00,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:59:00,502 INFO L87 Difference]: Start difference. First operand has 46 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 35 states have internal predecessors, (53), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:59:00,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:59:00,553 INFO L93 Difference]: Finished difference Result 89 states and 149 transitions. [2023-11-29 04:59:00,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:59:00,556 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 62 [2023-11-29 04:59:00,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:59:00,564 INFO L225 Difference]: With dead ends: 89 [2023-11-29 04:59:00,573 INFO L226 Difference]: Without dead ends: 44 [2023-11-29 04:59:00,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:59:00,581 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:59:00,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:59:00,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-29 04:59:00,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-29 04:59:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 33 states have internal predecessors, (48), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 04:59:00,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 66 transitions. [2023-11-29 04:59:00,625 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 66 transitions. Word has length 62 [2023-11-29 04:59:00,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:59:00,626 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 66 transitions. [2023-11-29 04:59:00,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:59:00,626 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 66 transitions. [2023-11-29 04:59:00,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 04:59:00,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:59:00,629 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:59:00,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:59:00,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:59:00,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:59:00,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2014418819, now seen corresponding path program 1 times [2023-11-29 04:59:00,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:59:00,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565099998] [2023-11-29 04:59:00,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:59:00,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:59:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:59:00,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:59:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:59:00,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:59:00,784 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:59:00,786 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:59:00,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:59:00,792 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 04:59:00,795 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:59:00,841 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-29 04:59:00,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:59:00 BoogieIcfgContainer [2023-11-29 04:59:00,856 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:59:00,857 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:59:00,857 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:59:00,858 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:59:00,858 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:59:00" (3/4) ... [2023-11-29 04:59:00,860 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:59:00,861 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:59:00,862 INFO L158 Benchmark]: Toolchain (without parser) took 1446.63ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 131.1MB in the beginning and 177.8MB in the end (delta: -46.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2023-11-29 04:59:00,863 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 169.9MB. Free memory was 135.7MB in the beginning and 135.7MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:59:00,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.48ms. Allocated memory is still 169.9MB. Free memory was 130.6MB in the beginning and 118.9MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:59:00,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.76ms. Allocated memory is still 169.9MB. Free memory was 118.9MB in the beginning and 116.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:59:00,865 INFO L158 Benchmark]: Boogie Preprocessor took 40.89ms. Allocated memory is still 169.9MB. Free memory was 116.9MB in the beginning and 114.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:59:00,865 INFO L158 Benchmark]: RCFGBuilder took 381.86ms. Allocated memory is still 169.9MB. Free memory was 114.3MB in the beginning and 96.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 04:59:00,866 INFO L158 Benchmark]: TraceAbstraction took 742.78ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 95.9MB in the beginning and 177.8MB in the end (delta: -81.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:59:00,867 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 224.4MB. Free memory is still 177.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:59:00,870 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 169.9MB. Free memory was 135.7MB in the beginning and 135.7MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.48ms. Allocated memory is still 169.9MB. Free memory was 130.6MB in the beginning and 118.9MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.76ms. Allocated memory is still 169.9MB. Free memory was 118.9MB in the beginning and 116.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.89ms. Allocated memory is still 169.9MB. Free memory was 116.9MB in the beginning and 114.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 381.86ms. Allocated memory is still 169.9MB. Free memory was 114.3MB in the beginning and 96.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 742.78ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 95.9MB in the beginning and 177.8MB in the end (delta: -81.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 224.4MB. Free memory is still 177.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 86, overapproximation of someUnaryFLOAToperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 5.5; [L23] float var_1_4 = 256.2; [L24] unsigned char var_1_5 = 128; [L25] unsigned char var_1_9 = 25; [L26] signed char var_1_10 = 4; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 1; [L29] signed char var_1_13 = -1; [L30] signed long int var_1_14 = 256; [L31] float var_1_15 = 127.2; [L32] signed char last_1_var_1_10 = 4; [L33] signed long int last_1_var_1_14 = 256; [L34] float last_1_var_1_15 = 127.2; [L90] isInitial = 1 [L91] FCALL initially() [L92] COND TRUE 1 [L93] CALL updateLastVariables() [L81] last_1_var_1_10 = var_1_10 [L82] last_1_var_1_14 = var_1_14 [L83] last_1_var_1_15 = var_1_15 [L93] RET updateLastVariables() [L94] CALL updateVariables() [L65] var_1_4 = __VERIFIER_nondet_float() [L66] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=25] [L66] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=25] [L67] var_1_9 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128] [L68] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128] [L69] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L69] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L70] var_1_11 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L71] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L72] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L72] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L73] var_1_12 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L74] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L75] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L75] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L76] var_1_13 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_13 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L77] RET assume_abort_if_not(var_1_13 >= -127) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L78] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L94] RET updateVariables() [L95] CALL step() [L38] COND FALSE !(last_1_var_1_15 < ((((25.2f) < 0 ) ? -(25.2f) : (25.2f)))) [L45] var_1_5 = var_1_9 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=0, var_1_9=0] [L47] var_1_14 = var_1_5 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=636/5, var_1_1=11/2, var_1_5=0, var_1_9=0] [L48] COND FALSE !(\read(var_1_11)) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=636/5, var_1_1=11/2, var_1_5=0, var_1_9=0] [L53] var_1_15 = var_1_4 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=261, var_1_1=11/2, var_1_4=261, var_1_5=0, var_1_9=0] [L54] COND TRUE var_1_15 <= (- var_1_15) [L55] var_1_1 = ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=0, var_1_9=0] [L95] RET step() [L96] CALL, EXPR property() [L86] EXPR ((var_1_15 <= (- var_1_15)) ? (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : ((var_1_15 > var_1_15) ? (var_1_1 == ((float) var_1_4)) : (var_1_1 == ((float) var_1_4)))) && ((last_1_var_1_15 < ((((25.2f) < 0 ) ? -(25.2f) : (25.2f)))) ? ((((4 + last_1_var_1_10) ^ last_1_var_1_14) >= last_1_var_1_10) ? (var_1_5 == ((unsigned char) 0)) : (var_1_5 == ((unsigned char) var_1_9))) : (var_1_5 == ((unsigned char) var_1_9))) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=0, var_1_9=0] [L86-L87] return (((((var_1_15 <= (- var_1_15)) ? (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : ((var_1_15 > var_1_15) ? (var_1_1 == ((float) var_1_4)) : (var_1_1 == ((float) var_1_4)))) && ((last_1_var_1_15 < ((((25.2f) < 0 ) ? -(25.2f) : (25.2f)))) ? ((((4 + last_1_var_1_10) ^ last_1_var_1_14) >= last_1_var_1_10) ? (var_1_5 == ((unsigned char) 0)) : (var_1_5 == ((unsigned char) var_1_9))) : (var_1_5 == ((unsigned char) var_1_9)))) && (var_1_11 ? ((! var_1_12) ? (var_1_10 == ((signed char) var_1_13)) : 1) : 1)) && (var_1_14 == ((signed long int) var_1_5))) && (var_1_15 == ((float) var_1_4)) ; [L96] RET, EXPR property() [L96] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 63 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 61 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 144/144 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 [2023-11-29 04:59:00,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ae547c4902f7e11f87d7994462416820855bf00f967c780d5442969e651ce2e2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:59:02,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:59:02,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 04:59:02,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:59:02,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:59:02,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:59:02,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:59:02,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:59:02,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:59:02,938 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:59:02,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:59:02,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:59:02,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:59:02,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:59:02,941 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:59:02,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:59:02,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:59:02,942 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:59:02,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:59:02,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:59:02,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:59:02,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:59:02,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:59:02,945 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:59:02,946 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:59:02,946 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:59:02,947 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:59:02,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:59:02,947 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:59:02,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:59:02,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:59:02,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:59:02,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:59:02,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:59:02,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:59:02,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:59:02,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:59:02,951 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:59:02,951 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:59:02,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:59:02,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:59:02,952 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:59:02,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:59:02,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:59:02,953 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:59:02,953 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae547c4902f7e11f87d7994462416820855bf00f967c780d5442969e651ce2e2 [2023-11-29 04:59:03,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:59:03,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:59:03,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:59:03,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:59:03,251 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:59:03,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i [2023-11-29 04:59:06,133 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:59:06,333 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:59:06,333 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i [2023-11-29 04:59:06,343 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/data/48cd87f75/1473862788f54bd982d1fd156bdc1b2b/FLAGcb20fff77 [2023-11-29 04:59:06,358 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/data/48cd87f75/1473862788f54bd982d1fd156bdc1b2b [2023-11-29 04:59:06,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:59:06,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:59:06,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:59:06,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:59:06,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:59:06,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e698ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06, skipping insertion in model container [2023-11-29 04:59:06,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,395 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:59:06,544 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_3ad0f0c6-4193-4721-8226-1dc05db1b481/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i[914,927] [2023-11-29 04:59:06,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:59:06,593 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:59:06,605 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_3ad0f0c6-4193-4721-8226-1dc05db1b481/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-1.i[914,927] [2023-11-29 04:59:06,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:59:06,639 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:59:06,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06 WrapperNode [2023-11-29 04:59:06,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:59:06,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:59:06,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:59:06,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:59:06,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,681 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2023-11-29 04:59:06,681 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:59:06,682 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:59:06,682 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:59:06,682 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:59:06,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,698 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,711 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:59:06,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:59:06,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:59:06,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:59:06,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:59:06,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (1/1) ... [2023-11-29 04:59:06,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:59:06,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:59:06,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:59:06,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:59:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:59:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:59:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:59:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:59:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:59:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:59:06,872 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:59:06,875 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:59:07,082 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:59:07,126 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:59:07,126 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:59:07,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:59:07 BoogieIcfgContainer [2023-11-29 04:59:07,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:59:07,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:59:07,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:59:07,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:59:07,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:59:06" (1/3) ... [2023-11-29 04:59:07,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3635fff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:59:07, skipping insertion in model container [2023-11-29 04:59:07,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:59:06" (2/3) ... [2023-11-29 04:59:07,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3635fff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:59:07, skipping insertion in model container [2023-11-29 04:59:07,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:59:07" (3/3) ... [2023-11-29 04:59:07,135 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-1.i [2023-11-29 04:59:07,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:59:07,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:59:07,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:59:07,206 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=PETRI_NET, 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;@1214369, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:59:07,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:59:07,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 04:59:07,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 04:59:07,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:59:07,221 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:59:07,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:59:07,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:59:07,227 INFO L85 PathProgramCache]: Analyzing trace with hash 2081333299, now seen corresponding path program 1 times [2023-11-29 04:59:07,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:59:07,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502283356] [2023-11-29 04:59:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:59:07,244 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 [2023-11-29 04:59:07,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:59:07,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 04:59:07,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:59:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:07,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:59:07,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:59:07,529 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-29 04:59:07,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:59:07,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:59:07,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502283356] [2023-11-29 04:59:07,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502283356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:59:07,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:59:07,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:59:07,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585261934] [2023-11-29 04:59:07,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:59:07,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:59:07,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:59:07,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:59:07,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:59:07,571 INFO L87 Difference]: Start difference. First operand has 35 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:59:07,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:59:07,904 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2023-11-29 04:59:07,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:59:07,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2023-11-29 04:59:07,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:59:07,915 INFO L225 Difference]: With dead ends: 67 [2023-11-29 04:59:07,915 INFO L226 Difference]: Without dead ends: 33 [2023-11-29 04:59:07,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:59:07,923 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:59:07,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:59:07,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-29 04:59:07,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-29 04:59:07,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 04:59:07,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2023-11-29 04:59:07,965 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 60 [2023-11-29 04:59:07,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:59:07,966 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2023-11-29 04:59:07,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:59:07,966 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2023-11-29 04:59:07,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 04:59:07,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:59:07,970 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:59:07,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:59:08,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:59:08,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:59:08,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:59:08,177 INFO L85 PathProgramCache]: Analyzing trace with hash -905062927, now seen corresponding path program 1 times [2023-11-29 04:59:08,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:59:08,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174321061] [2023-11-29 04:59:08,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:59:08,179 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 [2023-11-29 04:59:08,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:59:08,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 04:59:08,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad0f0c6-4193-4721-8226-1dc05db1b481/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:59:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:59:08,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:59:08,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 05:02:56,360 INFO L327 TraceCheckSpWp]: Computing backward predicates...