./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/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_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/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_d6400020-84d4-4fd0-8cba-2809aac3a541/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 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:19:46,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:19:46,345 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:19:46,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:19:46,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:19:46,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:19:46,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:19:46,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:19:46,385 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:19:46,392 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:19:46,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:19:46,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:19:46,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:19:46,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:19:46,396 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:19:46,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:19:46,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:19:46,398 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:19:46,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:19:46,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:19:46,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:19:46,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:19:46,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:19:46,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:19:46,401 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:19:46,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:19:46,402 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:19:46,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:19:46,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:19:46,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:19:46,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:19:46,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:46,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:19:46,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:19:46,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:19:46,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:19:46,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:19:46,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:19:46,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:19:46,408 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:19:46,408 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:19:46,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:19:46,409 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_d6400020-84d4-4fd0-8cba-2809aac3a541/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd [2023-11-21 22:19:46,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:19:46,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:19:46,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:19:46,744 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:19:46,744 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:19:46,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2023-11-21 22:19:49,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:19:50,177 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:19:50,179 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2023-11-21 22:19:50,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/data/4da95b093/d2903f2afb174901a7dd645a90423f84/FLAGbe91f108d [2023-11-21 22:19:50,215 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/data/4da95b093/d2903f2afb174901a7dd645a90423f84 [2023-11-21 22:19:50,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:19:50,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:19:50,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:50,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:19:50,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:19:50,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3a3e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50, skipping insertion in model container [2023-11-21 22:19:50,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,289 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:19:50,495 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_d6400020-84d4-4fd0-8cba-2809aac3a541/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2023-11-21 22:19:50,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:50,581 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:19:50,599 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_d6400020-84d4-4fd0-8cba-2809aac3a541/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2023-11-21 22:19:50,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:50,665 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:19:50,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50 WrapperNode [2023-11-21 22:19:50,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:50,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:50,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:19:50,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:19:50,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,746 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2023-11-21 22:19:50,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:50,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:19:50,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:19:50,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:19:50,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,775 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,793 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:19:50,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,833 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:19:50,834 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:19:50,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:19:50,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:19:50,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (1/1) ... [2023-11-21 22:19:50,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:50,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:50,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:50,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:19:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:19:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:19:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:19:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:19:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:19:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:19:51,041 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:19:51,043 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:19:51,435 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:19:51,668 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:19:51,668 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:19:51,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:51 BoogieIcfgContainer [2023-11-21 22:19:51,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:19:51,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:19:51,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:19:51,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:19:51,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:19:50" (1/3) ... [2023-11-21 22:19:51,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60622362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:51, skipping insertion in model container [2023-11-21 22:19:51,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:50" (2/3) ... [2023-11-21 22:19:51,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60622362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:51, skipping insertion in model container [2023-11-21 22:19:51,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:51" (3/3) ... [2023-11-21 22:19:51,680 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-18.i [2023-11-21 22:19:51,696 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:19:51,696 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:19:51,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:19:51,752 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;@4d9f2715, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:19:51,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:19:51,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-21 22:19:51,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-21 22:19:51,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:51,767 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:19:51,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:19:51,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:51,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1697771121, now seen corresponding path program 1 times [2023-11-21 22:19:51,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:51,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823822236] [2023-11-21 22:19:51,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:51,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:51,932 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:51,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211877952] [2023-11-21 22:19:51,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:51,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:51,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:51,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:51,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:19:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:52,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:52,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:52,295 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:19:52,296 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:19:52,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 22:19:52,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 22:19:52,508 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:19:52,512 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:19:52,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:19:52 BoogieIcfgContainer [2023-11-21 22:19:52,593 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:19:52,594 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:19:52,594 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:19:52,594 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:19:52,594 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:51" (3/4) ... [2023-11-21 22:19:52,596 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:19:52,598 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:19:52,599 INFO L158 Benchmark]: Toolchain (without parser) took 2371.51ms. Allocated memory is still 151.0MB. Free memory was 108.3MB in the beginning and 113.2MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:19:52,599 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:19:52,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.57ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 95.9MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.99ms. Allocated memory is still 151.0MB. Free memory was 95.9MB in the beginning and 93.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,601 INFO L158 Benchmark]: Boogie Preprocessor took 85.61ms. Allocated memory is still 151.0MB. Free memory was 93.6MB in the beginning and 90.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,602 INFO L158 Benchmark]: RCFGBuilder took 836.04ms. Allocated memory is still 151.0MB. Free memory was 90.9MB in the beginning and 93.4MB in the end (delta: -2.6MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,602 INFO L158 Benchmark]: TraceAbstraction took 919.64ms. Allocated memory is still 151.0MB. Free memory was 92.9MB in the beginning and 114.1MB in the end (delta: -21.2MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,603 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 151.0MB. Free memory was 114.1MB in the beginning and 113.2MB in the end (delta: 891.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:19:52,608 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.57ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 95.9MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.99ms. Allocated memory is still 151.0MB. Free memory was 95.9MB in the beginning and 93.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.61ms. Allocated memory is still 151.0MB. Free memory was 93.6MB in the beginning and 90.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 836.04ms. Allocated memory is still 151.0MB. Free memory was 90.9MB in the beginning and 93.4MB in the end (delta: -2.6MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 919.64ms. Allocated memory is still 151.0MB. Free memory was 92.9MB in the beginning and 114.1MB in the end (delta: -21.2MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 151.0MB. Free memory was 114.1MB in the beginning and 113.2MB in the end (delta: 891.8kB). 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 58, overapproximation of bitwiseOr at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_6 = 32; [L24] signed short int var_1_7 = 18477; [L25] signed short int var_1_8 = 5; [L26] float var_1_9 = 100.8; [L27] unsigned long int var_1_10 = 256; [L28] unsigned char var_1_11 = 0; [L29] unsigned char var_1_12 = 10; [L30] unsigned long int var_1_13 = 1879106797; [L31] unsigned long int var_1_14 = 1581421231; [L32] signed long int var_1_15 = -32; [L33] unsigned long int last_1_var_1_10 = 256; [L34] signed long int last_1_var_1_15 = -32; [L103] isInitial = 1 [L104] FCALL initially() [L105] int k_loop; [L106] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L106] COND TRUE k_loop < 1 [L107] CALL updateLastVariables() [L95] last_1_var_1_10 = var_1_10 [L96] last_1_var_1_15 = var_1_15 [L107] RET updateLastVariables() [L108] CALL updateVariables() [L69] var_1_6 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L71] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L72] var_1_7 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L74] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L75] var_1_8 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L77] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L78] var_1_9 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L80] var_1_11 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L82] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L83] var_1_12 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L85] CALL assume_abort_if_not(var_1_12 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 <= 255) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L86] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L87] var_1_13 = __VERIFIER_nondet_ulong() [L88] CALL assume_abort_if_not(var_1_13 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L89] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L90] var_1_14 = __VERIFIER_nondet_ulong() [L91] CALL assume_abort_if_not(var_1_14 >= 1073741824) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=2147483647, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_14 >= 1073741824) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=2147483647, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L92] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=2147483647, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=2147483647, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L108] RET updateVariables() [L109] CALL step() [L38] unsigned long int stepLocal_1 = last_1_var_1_10; [L39] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) [L39] unsigned long int stepLocal_0 = last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))); [L40] COND FALSE !(stepLocal_0 != last_1_var_1_10) [L45] var_1_1 = var_1_9 [L47] signed short int stepLocal_2 = var_1_6; [L48] COND FALSE !(\read(var_1_11)) [L55] var_1_10 = var_1_7 [L57] unsigned long int stepLocal_3 = var_1_10; [L58] COND FALSE !(var_1_1 <= var_1_9) [L65] var_1_15 = var_1_7 [L109] RET step() [L110] CALL, EXPR property() [L99] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) [L99-L100] return ((((last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10)))) != last_1_var_1_10) ? ((last_1_var_1_10 == (var_1_6 - (var_1_7 - var_1_8))) ? (var_1_1 == ((float) var_1_9)) : 1) : (var_1_1 == ((float) var_1_9))) && (var_1_11 ? (((var_1_7 % var_1_12) >= var_1_6) ? (var_1_10 == ((unsigned long int) ((var_1_13 + var_1_14) - var_1_7))) : (var_1_10 == ((unsigned long int) var_1_12))) : (var_1_10 == ((unsigned long int) var_1_7)))) && ((var_1_1 <= var_1_9) ? ((var_1_10 > (last_1_var_1_15 + (var_1_10 + var_1_7))) ? (var_1_15 == ((signed long int) var_1_7)) : (var_1_15 == ((signed long int) -5))) : (var_1_15 == ((signed long int) var_1_7))) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=2147483647, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=255, var_1_13=2147483647, var_1_14=2147483647, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=16383, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 16, 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=33occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 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 22:19:52,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/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_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/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_d6400020-84d4-4fd0-8cba-2809aac3a541/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 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:19:55,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:19:55,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:19:55,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:19:55,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:19:55,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:19:55,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:19:55,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:19:55,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:19:55,568 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:19:55,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:19:55,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:19:55,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:19:55,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:19:55,573 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:19:55,574 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:19:55,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:19:55,575 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:19:55,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:19:55,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:19:55,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:19:55,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:19:55,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:19:55,579 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:19:55,579 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:19:55,580 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:19:55,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:19:55,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:19:55,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:19:55,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:19:55,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:19:55,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:19:55,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:19:55,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:55,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:19:55,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:19:55,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:19:55,587 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:19:55,587 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:19:55,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:19:55,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:19:55,588 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:19:55,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:19:55,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:19:55,590 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:19:55,590 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_d6400020-84d4-4fd0-8cba-2809aac3a541/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd [2023-11-21 22:19:56,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:19:56,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:19:56,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:19:56,049 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:19:56,049 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:19:56,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2023-11-21 22:19:59,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:19:59,442 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:19:59,446 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2023-11-21 22:19:59,454 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/data/e5d46c80d/f3c8cf03699a4b049eb3ff24efd99958/FLAG6b761a031 [2023-11-21 22:19:59,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/data/e5d46c80d/f3c8cf03699a4b049eb3ff24efd99958 [2023-11-21 22:19:59,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:19:59,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:19:59,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:59,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:19:59,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:19:59,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575a9e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59, skipping insertion in model container [2023-11-21 22:19:59,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:19:59,748 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_d6400020-84d4-4fd0-8cba-2809aac3a541/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2023-11-21 22:19:59,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:59,847 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:19:59,869 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_d6400020-84d4-4fd0-8cba-2809aac3a541/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2023-11-21 22:19:59,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:59,934 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:19:59,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59 WrapperNode [2023-11-21 22:19:59,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:59,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:59,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:19:59,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:19:59,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,011 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2023-11-21 22:20:00,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:00,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:20:00,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:20:00,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:20:00,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,032 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,043 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:20:00,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:20:00,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:20:00,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:20:00,066 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:20:00,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:20:00,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:00,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:20:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:20:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:20:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:20:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:20:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:20:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:20:00,274 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:20:00,276 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:00,667 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:00,801 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:00,801 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:20:00,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:00 BoogieIcfgContainer [2023-11-21 22:20:00,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:00,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:20:00,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:20:00,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:20:00,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:19:59" (1/3) ... [2023-11-21 22:20:00,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5c8678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:00, skipping insertion in model container [2023-11-21 22:20:00,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (2/3) ... [2023-11-21 22:20:00,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5c8678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:00, skipping insertion in model container [2023-11-21 22:20:00,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:00" (3/3) ... [2023-11-21 22:20:00,816 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-18.i [2023-11-21 22:20:00,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:20:00,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:20:00,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:20:00,905 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;@3d39b47a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:20:00,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:20:00,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-21 22:20:00,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-21 22:20:00,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:00,922 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:00,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:00,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:00,930 INFO L85 PathProgramCache]: Analyzing trace with hash -260313405, now seen corresponding path program 1 times [2023-11-21 22:20:00,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:20:00,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320697841] [2023-11-21 22:20:00,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:00,947 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 22:20:00,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:20:00,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/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 22:20:00,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6400020-84d4-4fd0-8cba-2809aac3a541/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 22:20:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:01,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-21 22:20:01,211 INFO L285 TraceCheckSpWp]: Computing forward predicates...