./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/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_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/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_eea251ea-7d66-4d94-9fc1-bd9796fef727/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 5d36c740de441534d386d096ea681ce3661c00ad30f9b23294cc7086c26f7103 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:22:37,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:22:37,951 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:22:37,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:22:37,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:22:37,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:22:37,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:22:37,985 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:22:37,986 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:22:37,987 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:22:37,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:22:37,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:22:37,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:22:37,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:22:37,990 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:22:37,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:22:37,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:22:37,992 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:22:37,993 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:22:37,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:22:37,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:22:37,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:22:37,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:22:37,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:22:37,995 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:22:37,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:22:37,996 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:22:37,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:22:37,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:22:37,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:22:37,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:22:37,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:37,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:22:37,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:22:37,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:22:38,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:22:38,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:22:38,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:22:38,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:22:38,001 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:22:38,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:22:38,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:22:38,002 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d36c740de441534d386d096ea681ce3661c00ad30f9b23294cc7086c26f7103 [2023-11-21 22:22:38,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:22:38,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:22:38,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:22:38,289 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:22:38,290 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:22:38,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i [2023-11-21 22:22:41,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:22:41,757 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:22:41,757 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i [2023-11-21 22:22:41,766 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/data/76abd2751/eb41699c536a47e0a196c6dd6bbb7219/FLAGe22788d1a [2023-11-21 22:22:41,781 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/data/76abd2751/eb41699c536a47e0a196c6dd6bbb7219 [2023-11-21 22:22:41,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:22:41,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:22:41,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:41,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:22:41,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:22:41,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:41" (1/1) ... [2023-11-21 22:22:41,794 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301daea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:41, skipping insertion in model container [2023-11-21 22:22:41,794 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:41" (1/1) ... [2023-11-21 22:22:41,818 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:22:41,995 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_eea251ea-7d66-4d94-9fc1-bd9796fef727/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i[915,928] [2023-11-21 22:22:42,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:42,052 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:22:42,065 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_eea251ea-7d66-4d94-9fc1-bd9796fef727/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i[915,928] [2023-11-21 22:22:42,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:42,096 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:22:42,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42 WrapperNode [2023-11-21 22:22:42,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:42,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:42,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:22:42,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:22:42,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,138 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 79 [2023-11-21 22:22:42,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:42,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:22:42,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:22:42,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:22:42,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,154 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,164 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:22:42,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:22:42,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:22:42,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:22:42,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:22:42,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (1/1) ... [2023-11-21 22:22:42,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:42,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:42,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:22:42,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:22:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:22:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:22:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:22:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:22:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:22:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:22:42,327 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:22:42,329 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:22:42,520 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:22:42,655 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:22:42,655 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:22:42,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:42 BoogieIcfgContainer [2023-11-21 22:22:42,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:22:42,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:22:42,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:22:42,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:22:42,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:22:41" (1/3) ... [2023-11-21 22:22:42,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b943cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:42, skipping insertion in model container [2023-11-21 22:22:42,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:42" (2/3) ... [2023-11-21 22:22:42,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b943cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:42, skipping insertion in model container [2023-11-21 22:22:42,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:42" (3/3) ... [2023-11-21 22:22:42,670 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-61.i [2023-11-21 22:22:42,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:22:42,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:22:42,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:22:42,740 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;@485714fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:22:42,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:22:42,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-21 22:22:42,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 22:22:42,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:42,754 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:22:42,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:22:42,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:42,760 INFO L85 PathProgramCache]: Analyzing trace with hash 558982880, now seen corresponding path program 1 times [2023-11-21 22:22:42,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:42,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785057652] [2023-11-21 22:22:42,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:42,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:43,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:22:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:43,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:22:43,170 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:22:43,171 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:22:43,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:22:43,178 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:22:43,181 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:22:43,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:22:43 BoogieIcfgContainer [2023-11-21 22:22:43,222 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:22:43,237 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:22:43,237 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:22:43,237 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:22:43,244 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:42" (3/4) ... [2023-11-21 22:22:43,251 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:22:43,253 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:22:43,254 INFO L158 Benchmark]: Toolchain (without parser) took 1468.38ms. Allocated memory is still 176.2MB. Free memory was 131.8MB in the beginning and 144.5MB in the end (delta: -12.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:22:43,254 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 94.7MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:22:43,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.34ms. Allocated memory is still 176.2MB. Free memory was 131.8MB in the beginning and 120.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:22:43,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.08ms. Allocated memory is still 176.2MB. Free memory was 120.6MB in the beginning and 118.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:43,256 INFO L158 Benchmark]: Boogie Preprocessor took 39.81ms. Allocated memory is still 176.2MB. Free memory was 118.5MB in the beginning and 117.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:43,257 INFO L158 Benchmark]: RCFGBuilder took 477.40ms. Allocated memory is still 176.2MB. Free memory was 116.4MB in the beginning and 100.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 22:22:43,258 INFO L158 Benchmark]: TraceAbstraction took 561.44ms. Allocated memory is still 176.2MB. Free memory was 99.6MB in the beginning and 75.9MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:43,258 INFO L158 Benchmark]: Witness Printer took 16.02ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 144.5MB in the end (delta: 353.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:22:43,262 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 125.8MB. Free memory was 94.7MB in the beginning and 94.7MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.34ms. Allocated memory is still 176.2MB. Free memory was 131.8MB in the beginning and 120.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.08ms. Allocated memory is still 176.2MB. Free memory was 120.6MB in the beginning and 118.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.81ms. Allocated memory is still 176.2MB. Free memory was 118.5MB in the beginning and 117.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.40ms. Allocated memory is still 176.2MB. Free memory was 116.4MB in the beginning and 100.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 561.44ms. Allocated memory is still 176.2MB. Free memory was 99.6MB in the beginning and 75.9MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 16.02ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 144.5MB in the end (delta: 353.0kB). 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 someBinaryDOUBLEComparisonOperation at line 33. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 0; [L23] double var_1_2 = 199.5; [L24] double var_1_3 = 10.25; [L25] signed char var_1_4 = 5; [L26] signed char var_1_5 = 64; [L27] signed char var_1_6 = 8; [L28] signed char var_1_7 = 5; [L29] unsigned long int var_1_8 = 8; [L66] isInitial = 1 [L67] FCALL initially() [L68] COND TRUE 1 [L69] FCALL updateLastVariables() [L70] CALL updateVariables() [L41] var_1_2 = __VERIFIER_nondet_double() [L42] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=41/4, var_1_4=5, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L20] COND FALSE !(!cond) [L42] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=41/4, var_1_4=5, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L43] CALL assume_abort_if_not(var_1_2 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=41/4, var_1_4=5, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not(var_1_2 != 0.0F) VAL [isInitial=1, var_1_1=0, var_1_3=41/4, var_1_4=5, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L44] var_1_3 = __VERIFIER_nondet_double() [L45] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=204, var_1_4=5, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=204, var_1_4=5, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L46] var_1_4 = __VERIFIER_nondet_char() [L47] CALL assume_abort_if_not(var_1_4 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not(var_1_4 >= -63) VAL [isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L48] CALL assume_abort_if_not(var_1_4 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_4 <= 63) VAL [isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=64, var_1_6=8, var_1_7=5, var_1_8=8] [L49] var_1_5 = __VERIFIER_nondet_char() [L50] CALL assume_abort_if_not(var_1_5 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=8, var_1_7=5, var_1_8=8] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not(var_1_5 >= -1) VAL [isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=8, var_1_7=5, var_1_8=8] [L51] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=8, var_1_7=5, var_1_8=8] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=8, var_1_7=5, var_1_8=8] [L52] var_1_6 = __VERIFIER_nondet_char() [L53] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=5, var_1_8=8] [L20] COND FALSE !(!cond) [L53] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=5, var_1_8=8] [L54] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=5, var_1_8=8] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=5, var_1_8=8] [L55] var_1_7 = __VERIFIER_nondet_char() [L56] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=4, var_1_8=8] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=4, var_1_8=8] [L57] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=4, var_1_8=8] [L20] COND FALSE !(!cond) [L57] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_1=0, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=4, var_1_8=8] [L70] RET updateVariables() [L71] CALL step() [L33] COND TRUE (999.375 / ((((var_1_2) > (-0.19)) ? (var_1_2) : (-0.19)))) >= var_1_3 [L34] var_1_1 = (var_1_4 + -32) [L38] var_1_8 = var_1_7 [L71] RET step() [L72] CALL, EXPR property() [L62-L63] return (((999.375 / ((((var_1_2) > (-0.19)) ? (var_1_2) : (-0.19)))) >= var_1_3) ? (var_1_1 == ((signed char) (var_1_4 + -32))) : (var_1_1 == ((signed char) (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))) - var_1_7)))) && (var_1_8 == ((unsigned long int) var_1_7)) ; [L72] RET, EXPR property() [L72] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=-95, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=4, var_1_8=4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=-95, var_1_3=204, var_1_4=-63, var_1_5=3, var_1_6=2, var_1_7=4, var_1_8=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 11, 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=26occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 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 22:22:43,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/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_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/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_eea251ea-7d66-4d94-9fc1-bd9796fef727/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 5d36c740de441534d386d096ea681ce3661c00ad30f9b23294cc7086c26f7103 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:22:45,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:22:46,113 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:22:46,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:22:46,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:22:46,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:22:46,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:22:46,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:22:46,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:22:46,175 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:22:46,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:22:46,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:22:46,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:22:46,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:22:46,178 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:22:46,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:22:46,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:22:46,179 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:22:46,179 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:22:46,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:22:46,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:22:46,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:22:46,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:22:46,183 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:22:46,183 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:22:46,183 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:22:46,184 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:22:46,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:22:46,185 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:22:46,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:22:46,187 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:22:46,187 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:22:46,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:22:46,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:46,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:22:46,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:22:46,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:22:46,189 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:22:46,189 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:22:46,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:22:46,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:22:46,190 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:22:46,190 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:22:46,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:22:46,190 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:22:46,191 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_eea251ea-7d66-4d94-9fc1-bd9796fef727/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d36c740de441534d386d096ea681ce3661c00ad30f9b23294cc7086c26f7103 [2023-11-21 22:22:46,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:22:46,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:22:46,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:22:46,627 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:22:46,628 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:22:46,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i [2023-11-21 22:22:49,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:22:50,225 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:22:50,226 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i [2023-11-21 22:22:50,237 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/data/b291b87bd/df61a8194a9340a9a3fabdd5df60040b/FLAG0ba51537b [2023-11-21 22:22:50,254 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/data/b291b87bd/df61a8194a9340a9a3fabdd5df60040b [2023-11-21 22:22:50,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:22:50,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:22:50,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:50,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:22:50,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:22:50,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce95470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50, skipping insertion in model container [2023-11-21 22:22:50,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,288 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:22:50,451 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_eea251ea-7d66-4d94-9fc1-bd9796fef727/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i[915,928] [2023-11-21 22:22:50,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:50,496 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:22:50,508 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_eea251ea-7d66-4d94-9fc1-bd9796fef727/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-61.i[915,928] [2023-11-21 22:22:50,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:50,538 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:22:50,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50 WrapperNode [2023-11-21 22:22:50,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:50,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:50,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:22:50,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:22:50,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,583 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2023-11-21 22:22:50,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:50,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:22:50,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:22:50,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:22:50,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,600 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,608 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:22:50,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:22:50,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:22:50,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:22:50,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:22:50,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (1/1) ... [2023-11-21 22:22:50,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:50,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:50,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:22:50,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:22:50,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:22:50,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:22:50,694 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:22:50,694 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:22:50,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:22:50,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:22:50,768 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:22:50,770 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:22:57,302 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:22:57,405 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:22:57,408 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:22:57,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:57 BoogieIcfgContainer [2023-11-21 22:22:57,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:22:57,414 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:22:57,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:22:57,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:22:57,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:22:50" (1/3) ... [2023-11-21 22:22:57,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:57, skipping insertion in model container [2023-11-21 22:22:57,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:50" (2/3) ... [2023-11-21 22:22:57,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:57, skipping insertion in model container [2023-11-21 22:22:57,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:57" (3/3) ... [2023-11-21 22:22:57,426 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-61.i [2023-11-21 22:22:57,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:22:57,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:22:57,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:22:57,516 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;@f8eb62a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:22:57,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:22:57,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-21 22:22:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 22:22:57,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:57,529 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:22:57,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:22:57,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:57,535 INFO L85 PathProgramCache]: Analyzing trace with hash 558982880, now seen corresponding path program 1 times [2023-11-21 22:22:57,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:22:57,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909157315] [2023-11-21 22:22:57,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:57,548 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 22:22:57,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:22:57,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/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 22:22:57,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea251ea-7d66-4d94-9fc1-bd9796fef727/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 22:22:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:58,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:22:58,483 INFO L285 TraceCheckSpWp]: Computing forward predicates...