./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.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_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/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_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/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_dedd763c-25ae-44d6-8634-a71a141beeab/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 9942167140f46cf9a6de342ca7e9162ccfb76997661e3494128a17b58a9424e7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:59:05,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:59:05,437 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 20:59:05,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:59:05,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:59:05,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:59:05,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:59:05,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:59:05,488 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:59:05,493 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:59:05,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:59:05,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:59:05,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:59:05,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:59:05,498 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:59:05,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:59:05,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:59:05,499 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:59:05,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:59:05,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:59:05,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:59:05,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:59:05,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:59:05,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:59:05,502 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:59:05,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:59:05,503 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:59:05,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:59:05,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:59:05,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:59:05,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:59:05,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:05,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:59:05,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:59:05,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:59:05,508 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:59:05,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:59:05,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:59:05,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:59:05,509 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:59:05,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:59:05,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:59:05,510 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_dedd763c-25ae-44d6-8634-a71a141beeab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9942167140f46cf9a6de342ca7e9162ccfb76997661e3494128a17b58a9424e7 [2023-11-21 20:59:05,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:59:05,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:59:05,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:59:05,780 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:59:05,780 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:59:05,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i [2023-11-21 20:59:08,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:59:09,167 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:59:09,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i [2023-11-21 20:59:09,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/data/a46a571a0/dfb2154043b645dd9d52855886deccac/FLAGa0b54e90c [2023-11-21 20:59:09,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/data/a46a571a0/dfb2154043b645dd9d52855886deccac [2023-11-21 20:59:09,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:59:09,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:59:09,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:09,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:59:09,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:59:09,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536205cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09, skipping insertion in model container [2023-11-21 20:59:09,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:59:09,424 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_dedd763c-25ae-44d6-8634-a71a141beeab/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i[915,928] [2023-11-21 20:59:09,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:09,471 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:59:09,486 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_dedd763c-25ae-44d6-8634-a71a141beeab/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i[915,928] [2023-11-21 20:59:09,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:09,522 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:59:09,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09 WrapperNode [2023-11-21 20:59:09,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:09,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:09,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:59:09,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:59:09,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,575 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 79 [2023-11-21 20:59:09,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:09,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:59:09,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:59:09,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:59:09,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,592 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,604 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 20:59:09,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:59:09,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:59:09,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:59:09,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:59:09,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (1/1) ... [2023-11-21 20:59:09,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:09,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:09,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:09,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:59:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:59:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 20:59:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 20:59:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 20:59:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:59:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:59:09,802 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:59:09,805 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:59:10,064 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:59:10,195 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:59:10,196 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 20:59:10,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:10 BoogieIcfgContainer [2023-11-21 20:59:10,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:59:10,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:59:10,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:59:10,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:59:10,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:09" (1/3) ... [2023-11-21 20:59:10,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4f59c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:10, skipping insertion in model container [2023-11-21 20:59:10,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:09" (2/3) ... [2023-11-21 20:59:10,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4f59c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:10, skipping insertion in model container [2023-11-21 20:59:10,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:10" (3/3) ... [2023-11-21 20:59:10,208 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-20.i [2023-11-21 20:59:10,229 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:59:10,229 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:59:10,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:59:10,283 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;@3cc012db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:59:10,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:59:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 20:59:10,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 20:59:10,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:10,297 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:59:10,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:10,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:10,303 INFO L85 PathProgramCache]: Analyzing trace with hash -202751135, now seen corresponding path program 1 times [2023-11-21 20:59:10,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:10,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974420755] [2023-11-21 20:59:10,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:10,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:10,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:59:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:10,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:59:10,719 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 20:59:10,721 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 20:59:10,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 20:59:10,731 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 20:59:10,739 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 20:59:10,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 08:59:10 BoogieIcfgContainer [2023-11-21 20:59:10,812 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 20:59:10,815 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 20:59:10,815 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 20:59:10,816 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 20:59:10,816 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:10" (3/4) ... [2023-11-21 20:59:10,822 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 20:59:10,823 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 20:59:10,825 INFO L158 Benchmark]: Toolchain (without parser) took 1626.82ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 96.0MB in the beginning and 129.5MB in the end (delta: -33.5MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-11-21 20:59:10,826 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 69.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:10,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.77ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 84.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 20:59:10,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.65ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 82.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:59:10,834 INFO L158 Benchmark]: Boogie Preprocessor took 45.63ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 80.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:59:10,836 INFO L158 Benchmark]: RCFGBuilder took 574.69ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 80.0MB in the beginning and 149.4MB in the end (delta: -69.4MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-11-21 20:59:10,837 INFO L158 Benchmark]: TraceAbstraction took 611.17ms. Allocated memory is still 188.7MB. Free memory was 149.4MB in the beginning and 129.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 20:59:10,837 INFO L158 Benchmark]: Witness Printer took 8.27ms. Allocated memory is still 188.7MB. Free memory was 129.5MB in the beginning and 129.5MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:10,840 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 69.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.77ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 84.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.65ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 82.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.63ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 80.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.69ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 80.0MB in the beginning and 149.4MB in the end (delta: -69.4MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * TraceAbstraction took 611.17ms. Allocated memory is still 188.7MB. Free memory was 149.4MB in the beginning and 129.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 8.27ms. Allocated memory is still 188.7MB. Free memory was 129.5MB in the beginning and 129.5MB in the end (delta: 2.7kB). 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 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 0.6; [L23] unsigned char var_1_2 = 0; [L24] float var_1_3 = 0.0; [L25] float var_1_4 = 2.95; [L26] float var_1_5 = 8.5; [L27] float var_1_6 = 999999999999.4; [L28] double var_1_7 = 10.2; [L29] double var_1_8 = 32.7; [L30] double var_1_9 = 32.75; [L31] double last_1_var_1_8 = 32.7; [L79] isInitial = 1 [L80] FCALL initially() [L81] COND TRUE 1 [L82] CALL updateLastVariables() [L72] last_1_var_1_8 = var_1_8 [L82] RET updateLastVariables() [L83] CALL updateVariables() [L59] var_1_2 = __VERIFIER_nondet_uchar() [L60] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_3=0, var_1_4=59/20, var_1_5=17/2, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_3=0, var_1_4=59/20, var_1_5=17/2, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L61] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=0, var_1_4=59/20, var_1_5=17/2, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=0, var_1_4=59/20, var_1_5=17/2, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L62] var_1_3 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_3 >= 4611686.018427382800e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=1000000000004, var_1_4=59/20, var_1_5=17/2, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((var_1_3 >= 4611686.018427382800e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=1000000000004, var_1_4=59/20, var_1_5=17/2, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L64] var_1_4 = __VERIFIER_nondet_float() [L65] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=1000000000004, var_1_4=131/4, var_1_5=17/2, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=1000000000004, var_1_4=131/4, var_1_5=17/2, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L66] var_1_5 = __VERIFIER_nondet_float() [L67] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=1000000000004, var_1_4=131/4, var_1_5=1000000000005, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=1000000000004, var_1_4=131/4, var_1_5=1000000000005, var_1_6=4999999999997/5, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L68] var_1_6 = __VERIFIER_nondet_float() [L69] CALL assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=1000000000004, var_1_4=131/4, var_1_5=1000000000005, var_1_6=131/4, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=327/10, var_1_1=3/5, var_1_2=1, var_1_3=1000000000004, var_1_4=131/4, var_1_5=1000000000005, var_1_6=131/4, var_1_7=51/5, var_1_8=327/10, var_1_9=131/4] [L83] RET updateVariables() [L84] CALL step() [L35] COND TRUE \read(var_1_2) [L36] var_1_1 = ((var_1_3 - var_1_4) - var_1_5) [L40] COND TRUE \read(var_1_2) [L41] var_1_7 = ((((((var_1_3 - 255.719)) < (var_1_5)) ? ((var_1_3 - 255.719)) : (var_1_5))) - 2.3) [L43] COND TRUE \read(var_1_2) [L44] COND FALSE !(var_1_7 >= ((((last_1_var_1_8) > (var_1_6)) ? (last_1_var_1_8) : (var_1_6)))) [L47] var_1_8 = var_1_4 [L54] COND FALSE !(var_1_4 != (var_1_3 - var_1_5)) [L84] RET step() [L85] CALL, EXPR property() [L75-L76] return (((var_1_2 ? (var_1_1 == ((float) ((var_1_3 - var_1_4) - var_1_5))) : (var_1_1 == ((float) (var_1_4 + var_1_6)))) && (var_1_2 ? (var_1_7 == ((double) ((((((var_1_3 - 255.719)) < (var_1_5)) ? ((var_1_3 - 255.719)) : (var_1_5))) - 2.3))) : 1)) && (var_1_2 ? ((var_1_7 >= ((((last_1_var_1_8) > (var_1_6)) ? (last_1_var_1_8) : (var_1_6)))) ? (var_1_8 == ((double) (var_1_5 - var_1_3))) : (var_1_8 == ((double) var_1_4))) : ((var_1_7 <= var_1_5) ? (var_1_8 == ((double) var_1_6)) : 1))) && ((var_1_4 != (var_1_3 - var_1_5)) ? (var_1_9 == ((double) var_1_6)) : 1) ; [L85] RET, EXPR property() [L85] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_8=327/10, var_1_2=1, var_1_3=1000000000004, var_1_4=131/4, var_1_5=1000000000005, var_1_6=131/4, var_1_7=51/5, var_1_8=131/4, var_1_9=131/4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_8=327/10, var_1_2=1, var_1_3=1000000000004, var_1_4=131/4, var_1_5=1000000000005, var_1_6=131/4, var_1_7=51/5, var_1_8=131/4, var_1_9=131/4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 6, 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=20occurred 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, 27 NumberOfCodeBlocks, 27 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 20:59:10,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/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_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/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_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/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_dedd763c-25ae-44d6-8634-a71a141beeab/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 9942167140f46cf9a6de342ca7e9162ccfb76997661e3494128a17b58a9424e7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:59:13,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:59:13,736 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 20:59:13,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:59:13,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:59:13,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:59:13,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:59:13,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:59:13,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:59:13,799 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:59:13,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:59:13,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:59:13,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:59:13,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:59:13,803 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:59:13,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:59:13,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:59:13,805 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:59:13,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:59:13,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:59:13,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:59:13,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:59:13,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:59:13,809 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 20:59:13,809 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 20:59:13,810 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 20:59:13,810 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:59:13,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:59:13,811 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:59:13,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:59:13,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:59:13,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:59:13,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:59:13,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:13,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:59:13,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:59:13,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:59:13,816 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 20:59:13,816 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 20:59:13,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:59:13,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:59:13,817 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:59:13,817 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:59:13,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:59:13,818 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 20:59:13,819 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_dedd763c-25ae-44d6-8634-a71a141beeab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9942167140f46cf9a6de342ca7e9162ccfb76997661e3494128a17b58a9424e7 [2023-11-21 20:59:14,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:59:14,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:59:14,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:59:14,279 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:59:14,280 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:59:14,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i [2023-11-21 20:59:17,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:59:17,904 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:59:17,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i [2023-11-21 20:59:17,912 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/data/60646a37e/0cef6b4d0b3a4dbb8042cf1410f2537a/FLAG7c09beda5 [2023-11-21 20:59:17,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/data/60646a37e/0cef6b4d0b3a4dbb8042cf1410f2537a [2023-11-21 20:59:17,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:59:17,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:59:17,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:17,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:59:17,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:59:17,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:17" (1/1) ... [2023-11-21 20:59:17,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428ba8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:17, skipping insertion in model container [2023-11-21 20:59:17,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:17" (1/1) ... [2023-11-21 20:59:17,975 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:59:18,184 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_dedd763c-25ae-44d6-8634-a71a141beeab/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i[915,928] [2023-11-21 20:59:18,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:18,274 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:59:18,293 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_dedd763c-25ae-44d6-8634-a71a141beeab/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-20.i[915,928] [2023-11-21 20:59:18,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:18,350 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:59:18,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18 WrapperNode [2023-11-21 20:59:18,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:18,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:18,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:59:18,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:59:18,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,428 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 79 [2023-11-21 20:59:18,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:18,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:59:18,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:59:18,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:59:18,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,456 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,479 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 20:59:18,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:59:18,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:59:18,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:59:18,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:59:18,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (1/1) ... [2023-11-21 20:59:18,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:18,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:18,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:18,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:59:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:59:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 20:59:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 20:59:18,622 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 20:59:18,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:59:18,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:59:18,732 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:59:18,734 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:59:23,586 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:59:23,689 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:59:23,689 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 20:59:23,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:23 BoogieIcfgContainer [2023-11-21 20:59:23,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:59:23,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:59:23,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:59:23,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:59:23,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:17" (1/3) ... [2023-11-21 20:59:23,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eee1e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:23, skipping insertion in model container [2023-11-21 20:59:23,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:18" (2/3) ... [2023-11-21 20:59:23,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eee1e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:23, skipping insertion in model container [2023-11-21 20:59:23,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:23" (3/3) ... [2023-11-21 20:59:23,703 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-20.i [2023-11-21 20:59:23,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:59:23,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:59:23,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:59:23,802 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;@783faddf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:59:23,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:59:23,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 20:59:23,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 20:59:23,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:23,821 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:59:23,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:23,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:23,827 INFO L85 PathProgramCache]: Analyzing trace with hash -202751135, now seen corresponding path program 1 times [2023-11-21 20:59:23,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 20:59:23,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796977647] [2023-11-21 20:59:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:23,868 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 20:59:23,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 20:59:23,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/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 20:59:23,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dedd763c-25ae-44d6-8634-a71a141beeab/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 20:59:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:24,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-21 20:59:24,932 INFO L285 TraceCheckSpWp]: Computing forward predicates...