./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx --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 cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:26:44,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:26:44,071 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:26:44,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:26:44,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:26:44,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:26:44,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:26:44,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:26:44,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:26:44,106 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:26:44,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:26:44,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:26:44,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:26:44,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:26:44,109 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:26:44,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:26:44,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:26:44,111 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:26:44,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:26:44,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:26:44,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:26:44,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:26:44,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:26:44,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:26:44,115 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:26:44,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:26:44,117 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:26:44,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:26:44,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:26:44,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:26:44,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:26:44,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:26:44,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:26:44,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:26:44,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:26:44,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:26:44,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:26:44,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:26:44,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:26:44,123 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:26:44,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:26:44,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:26:44,124 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_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 [2023-11-21 22:26:44,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:26:44,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:26:44,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:26:44,452 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:26:44,453 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:26:44,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-21 22:26:47,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:26:47,916 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:26:47,920 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-21 22:26:47,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/data/3b84e9c95/618c709f245b4a0b9757c717ea29230c/FLAGe2ecc404a [2023-11-21 22:26:47,951 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/data/3b84e9c95/618c709f245b4a0b9757c717ea29230c [2023-11-21 22:26:47,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:26:47,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:26:47,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:26:47,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:26:47,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:26:47,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:47" (1/1) ... [2023-11-21 22:26:47,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ef0180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:47, skipping insertion in model container [2023-11-21 22:26:47,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:47" (1/1) ... [2023-11-21 22:26:48,001 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:26:48,158 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_6d7f89f3-77a3-4444-a82c-fae541072f9d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2023-11-21 22:26:48,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:26:48,213 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:26:48,227 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_6d7f89f3-77a3-4444-a82c-fae541072f9d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2023-11-21 22:26:48,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:26:48,268 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:26:48,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48 WrapperNode [2023-11-21 22:26:48,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:26:48,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:26:48,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:26:48,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:26:48,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,327 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2023-11-21 22:26:48,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:26:48,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:26:48,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:26:48,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:26:48,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,344 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,359 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:26:48,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:26:48,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:26:48,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:26:48,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:26:48,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (1/1) ... [2023-11-21 22:26:48,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:26:48,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:26:48,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:26:48,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:26:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:26:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:26:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:26:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:26:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:26:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:26:48,573 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:26:48,576 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:26:48,976 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:26:49,101 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:26:49,101 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:26:49,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:49 BoogieIcfgContainer [2023-11-21 22:26:49,103 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:26:49,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:26:49,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:26:49,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:26:49,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:26:47" (1/3) ... [2023-11-21 22:26:49,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62235509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:26:49, skipping insertion in model container [2023-11-21 22:26:49,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:48" (2/3) ... [2023-11-21 22:26:49,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62235509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:26:49, skipping insertion in model container [2023-11-21 22:26:49,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:49" (3/3) ... [2023-11-21 22:26:49,112 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-21 22:26:49,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:26:49,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:26:49,182 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:26:49,189 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;@7831da8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:26:49,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:26:49,194 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) [2023-11-21 22:26:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-21 22:26:49,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:49,206 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] [2023-11-21 22:26:49,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:49,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:49,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1718157602, now seen corresponding path program 1 times [2023-11-21 22:26:49,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:49,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604976574] [2023-11-21 22:26:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:49,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:26:49,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:26:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:26:49,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:26:49,962 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:26:49,963 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:26:49,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:26:49,969 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:26:49,974 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:26:50,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:26:50 BoogieIcfgContainer [2023-11-21 22:26:50,052 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:26:50,053 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:26:50,053 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:26:50,053 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:26:50,054 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:49" (3/4) ... [2023-11-21 22:26:50,056 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:26:50,057 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:26:50,058 INFO L158 Benchmark]: Toolchain (without parser) took 2100.09ms. Allocated memory is still 138.4MB. Free memory was 94.7MB in the beginning and 101.5MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:26:50,058 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:26:50,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.46ms. Allocated memory is still 138.4MB. Free memory was 94.2MB in the beginning and 82.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:26:50,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.84ms. Allocated memory is still 138.4MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:26:50,060 INFO L158 Benchmark]: Boogie Preprocessor took 58.14ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 76.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:26:50,061 INFO L158 Benchmark]: RCFGBuilder took 715.89ms. Allocated memory is still 138.4MB. Free memory was 76.2MB in the beginning and 95.0MB in the end (delta: -18.8MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-11-21 22:26:50,062 INFO L158 Benchmark]: TraceAbstraction took 946.29ms. Allocated memory is still 138.4MB. Free memory was 94.1MB in the beginning and 101.5MB in the end (delta: -7.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-21 22:26:50,062 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 138.4MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:26:50,066 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.46ms. Allocated memory is still 138.4MB. Free memory was 94.2MB in the beginning and 82.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.84ms. Allocated memory is still 138.4MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.14ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 76.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 715.89ms. Allocated memory is still 138.4MB. Free memory was 76.2MB in the beginning and 95.0MB in the end (delta: -18.8MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * TraceAbstraction took 946.29ms. Allocated memory is still 138.4MB. Free memory was 94.1MB in the beginning and 101.5MB in the end (delta: -7.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 138.4MB. Free memory is still 101.5MB. 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 46, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] signed long int var_1_8 = 64; [L28] signed char var_1_11 = 2; [L29] signed char var_1_12 = 32; [L30] signed char var_1_13 = 2; [L31] float var_1_14 = 31.325; [L32] float var_1_15 = 7.4; [L33] float var_1_16 = 7.375; [L34] unsigned short int var_1_17 = 256; [L35] unsigned short int var_1_19 = 24509; [L36] unsigned short int var_1_20 = 32; [L37] unsigned short int var_1_21 = 4; [L38] signed char last_1_var_1_11 = 2; [L101] isInitial = 1 [L102] FCALL initially() [L103] COND TRUE 1 [L104] CALL updateLastVariables() [L94] last_1_var_1_11 = var_1_11 [L104] RET updateLastVariables() [L105] CALL updateVariables() [L61] var_1_4 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L63] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L64] var_1_5 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L66] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L67] var_1_6 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L69] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L70] var_1_7 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L72] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L73] var_1_12 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_12 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_12 >= -63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L75] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L76] var_1_13 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_13 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_13 >= -63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L78] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L79] var_1_15 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L81] var_1_16 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L83] var_1_19 = __VERIFIER_nondet_ushort() [L84] CALL assume_abort_if_not(var_1_19 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_19 >= 16383) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L85] CALL assume_abort_if_not(var_1_19 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_19 <= 32767) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L86] var_1_20 = __VERIFIER_nondet_ushort() [L87] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L88] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L89] var_1_21 = __VERIFIER_nondet_ushort() [L90] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L91] CALL assume_abort_if_not(var_1_21 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_21 <= 32767) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_14=1253/40, var_1_15=24514, var_1_16=24515, var_1_17=256, var_1_19=32766, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L105] RET updateVariables() [L106] CALL step() [L42] COND FALSE !(((((16) < 0 ) ? -(16) : (16))) < last_1_var_1_11) [L45] var_1_14 = (var_1_15 - var_1_16) [L46] COND TRUE var_1_14 <= ((var_1_15 - var_1_16) * var_1_14) [L47] var_1_17 = ((var_1_19 - var_1_20) + var_1_21) [L51] COND FALSE !(var_1_17 >= (8u * var_1_17)) [L54] var_1_1 = var_1_7 [L56] COND FALSE !(\read(var_1_5)) [L106] RET step() [L107] CALL, EXPR property() [L97-L98] return (((((var_1_17 >= (8u * var_1_17)) ? (var_1_1 == ((unsigned char) (! (var_1_4 || (var_1_5 || var_1_6))))) : (var_1_1 == ((unsigned char) var_1_7))) && (var_1_5 ? (var_1_8 == ((signed long int) (var_1_17 + var_1_11))) : 1)) && ((((((16) < 0 ) ? -(16) : (16))) < last_1_var_1_11) ? (var_1_11 == ((signed char) (var_1_12 + var_1_13))) : 1)) && (var_1_14 == ((float) (var_1_15 - var_1_16)))) && ((var_1_14 <= ((var_1_15 - var_1_16) * var_1_14)) ? (var_1_17 == ((unsigned short int) ((var_1_19 - var_1_20) + var_1_21))) : (var_1_17 == ((unsigned short int) var_1_20))) ; [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_15=24514, var_1_16=24515, var_1_17=16383, var_1_19=32766, var_1_1=1, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=-61, var_1_15=24514, var_1_16=24515, var_1_17=16383, var_1_19=32766, var_1_1=1, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 0.4s 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 [2023-11-21 22:26:50,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx --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 cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:26:52,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:26:52,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:26:52,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:26:52,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:26:52,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:26:52,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:26:52,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:26:52,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:26:52,982 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:26:52,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:26:52,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:26:52,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:26:52,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:26:52,987 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:26:52,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:26:52,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:26:52,989 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:26:52,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:26:52,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:26:52,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:26:52,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:26:52,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:26:52,992 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:26:52,992 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:26:52,993 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:26:52,993 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:26:52,994 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:26:52,994 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:26:52,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:26:52,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:26:52,996 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:26:52,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:26:52,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:26:52,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:26:52,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:26:52,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:26:52,999 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:26:52,999 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:26:52,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:26:52,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:26:53,000 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:26:53,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:26:53,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:26:53,001 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:26:53,002 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_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 [2023-11-21 22:26:53,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:26:53,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:26:53,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:26:53,431 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:26:53,432 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:26:53,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-21 22:26:56,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:26:57,066 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:26:57,067 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-21 22:26:57,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/data/c01defe97/333cb4be53c3402f8be6ccfc5f55a457/FLAGf35a12ec3 [2023-11-21 22:26:57,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/data/c01defe97/333cb4be53c3402f8be6ccfc5f55a457 [2023-11-21 22:26:57,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:26:57,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:26:57,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:26:57,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:26:57,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:26:57,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f837344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57, skipping insertion in model container [2023-11-21 22:26:57,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,140 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:26:57,347 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_6d7f89f3-77a3-4444-a82c-fae541072f9d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2023-11-21 22:26:57,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:26:57,405 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:26:57,423 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_6d7f89f3-77a3-4444-a82c-fae541072f9d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2023-11-21 22:26:57,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:26:57,486 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:26:57,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57 WrapperNode [2023-11-21 22:26:57,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:26:57,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:26:57,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:26:57,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:26:57,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,573 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-21 22:26:57,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:26:57,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:26:57,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:26:57,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:26:57,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,607 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,627 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:26:57,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:26:57,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:26:57,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:26:57,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:26:57,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (1/1) ... [2023-11-21 22:26:57,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:26:57,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:26:57,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:26:57,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:26:57,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:26:57,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:26:57,765 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:26:57,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:26:57,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:26:57,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:26:57,887 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:26:57,890 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:26:59,967 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:27:00,081 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:27:00,081 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:27:00,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:00 BoogieIcfgContainer [2023-11-21 22:27:00,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:27:00,086 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:27:00,086 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:27:00,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:27:00,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:26:57" (1/3) ... [2023-11-21 22:27:00,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4862956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:27:00, skipping insertion in model container [2023-11-21 22:27:00,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:57" (2/3) ... [2023-11-21 22:27:00,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4862956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:27:00, skipping insertion in model container [2023-11-21 22:27:00,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:00" (3/3) ... [2023-11-21 22:27:00,106 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-21 22:27:00,124 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:27:00,124 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:27:00,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:27:00,176 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;@7cffa2a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:27:00,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:27:00,181 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) [2023-11-21 22:27:00,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-21 22:27:00,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:27:00,195 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] [2023-11-21 22:27:00,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:27:00,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:00,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1718157602, now seen corresponding path program 1 times [2023-11-21 22:27:00,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:27:00,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003721840] [2023-11-21 22:27:00,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:00,223 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 [2023-11-21 22:27:00,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:27:00,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:27:00,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7f89f3-77a3-4444-a82c-fae541072f9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:27:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:00,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-21 22:27:00,618 INFO L285 TraceCheckSpWp]: Computing forward predicates...