./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/simple_4-1_abstracted.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/simple_4-1_abstracted.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB --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 40fb7d2cef7329fe7553b968956583902b01a5683aac352e94115998d52b1172 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:10:38,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:10:38,810 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:10:38,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:10:38,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:10:38,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:10:38,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:10:38,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:10:38,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:10:38,873 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:10:38,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:10:38,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:10:38,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:10:38,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:10:38,876 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:10:38,876 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:10:38,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:10:38,876 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:10:38,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:10:38,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:10:38,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:10:38,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:10:38,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:10:38,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:10:38,877 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:10:38,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:10:38,877 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:10:38,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:10:38,878 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:10:38,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:10:38,878 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:10:38,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:10:38,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:10:38,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:10:38,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:10:38,880 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:10:38,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:10:38,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:10:38,881 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:10:38,881 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:10:38,881 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:10:38,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:10:38,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:10:38,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:10:38,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:10:38,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:10:38,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:10:38,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:10:38,883 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 40fb7d2cef7329fe7553b968956583902b01a5683aac352e94115998d52b1172 [2024-11-28 02:10:39,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:10:39,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:10:39,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:10:39,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:10:39,299 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:10:39,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-acceleration/simple_4-1_abstracted.c [2024-11-28 02:10:42,417 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/data/0f88c4f63/9ee4af71944c4450b6beceade358fa5d/FLAG15ae1906b [2024-11-28 02:10:42,777 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:10:42,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/sv-benchmarks/c/loop-acceleration/simple_4-1_abstracted.c [2024-11-28 02:10:42,790 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/data/0f88c4f63/9ee4af71944c4450b6beceade358fa5d/FLAG15ae1906b [2024-11-28 02:10:42,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/data/0f88c4f63/9ee4af71944c4450b6beceade358fa5d [2024-11-28 02:10:42,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:10:42,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:10:42,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:10:42,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:10:42,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:10:42,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:10:42" (1/1) ... [2024-11-28 02:10:42,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689c9dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:42, skipping insertion in model container [2024-11-28 02:10:42,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:10:42" (1/1) ... [2024-11-28 02:10:42,853 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:10:43,028 WARN L250 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_b139d645-2cdb-41a0-a66a-832b2f9250ee/sv-benchmarks/c/loop-acceleration/simple_4-1_abstracted.c[740,753] [2024-11-28 02:10:43,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:10:43,056 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:10:43,068 WARN L250 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_b139d645-2cdb-41a0-a66a-832b2f9250ee/sv-benchmarks/c/loop-acceleration/simple_4-1_abstracted.c[740,753] [2024-11-28 02:10:43,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:10:43,097 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:10:43,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43 WrapperNode [2024-11-28 02:10:43,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:10:43,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:10:43,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:10:43,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:10:43,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,139 INFO L138 Inliner]: procedures = 20, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2024-11-28 02:10:43,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:10:43,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:10:43,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:10:43,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:10:43,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,171 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:10:43,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,174 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:10:43,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:10:43,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:10:43,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:10:43,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (1/1) ... [2024-11-28 02:10:43,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:10:43,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:10:43,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:10:43,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:10:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:10:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:10:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:10:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:10:43,331 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:10:43,333 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:10:43,470 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-28 02:10:43,470 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:10:43,484 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:10:43,484 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:10:43,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:10:43 BoogieIcfgContainer [2024-11-28 02:10:43,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:10:43,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:10:43,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:10:43,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:10:43,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:10:42" (1/3) ... [2024-11-28 02:10:43,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac3bce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:10:43, skipping insertion in model container [2024-11-28 02:10:43,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:43" (2/3) ... [2024-11-28 02:10:43,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac3bce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:10:43, skipping insertion in model container [2024-11-28 02:10:43,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:10:43" (3/3) ... [2024-11-28 02:10:43,502 INFO L128 eAbstractionObserver]: Analyzing ICFG simple_4-1_abstracted.c [2024-11-28 02:10:43,519 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:10:43,522 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG simple_4-1_abstracted.c that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:10:43,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:10:43,609 INFO L333 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, 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;@166570ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:10:43,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:10:43,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:10:43,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 02:10:43,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:43,624 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 02:10:43,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:43,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:43,631 INFO L85 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2024-11-28 02:10:43,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:43,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132552912] [2024-11-28 02:10:43,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:43,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:43,798 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:10:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:43,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:10:43,862 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:10:43,864 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:10:43,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:10:43,875 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 02:10:43,895 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:10:43,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:10:43 BoogieIcfgContainer [2024-11-28 02:10:43,901 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:10:43,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:10:43,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:10:43,902 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:10:43,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:10:43" (3/4) ... [2024-11-28 02:10:43,906 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 02:10:43,950 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 4. [2024-11-28 02:10:43,999 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:10:43,999 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:10:44,000 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:10:44,001 INFO L158 Benchmark]: Toolchain (without parser) took 1178.88ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 67.5MB in the end (delta: 40.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 02:10:44,001 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:10:44,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.81ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 97.2MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:10:44,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.30ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 96.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:10:44,002 INFO L158 Benchmark]: Boogie Preprocessor took 43.81ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:10:44,002 INFO L158 Benchmark]: RCFGBuilder took 299.81ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 85.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:10:44,003 INFO L158 Benchmark]: TraceAbstraction took 413.23ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 71.4MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:10:44,003 INFO L158 Benchmark]: Witness Printer took 97.55ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 67.5MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:10:44,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.81ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 97.2MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.30ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 96.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.81ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.81ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 85.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 413.23ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 71.4MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 97.55ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 67.5MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int x = 0x0ffffff1; VAL [x=268435441] [L26] COND TRUE x > (1) [L27] long long int x__VERIFIER_LA_tmp0; [L28] x__VERIFIER_LA_tmp0 = x [L29] long long int __VERIFIER_LA_iterations0; [L30] __VERIFIER_LA_iterations0 = ((x__VERIFIER_LA_tmp0 - 1) / 2L) + 1L [L31] unsigned int x__VERIFIER_LA_old_tmp0; [L32] x__VERIFIER_LA_old_tmp0 = x [L33] x = (__VERIFIER_LA_iterations0 * -2L) + x__VERIFIER_LA_old_tmp0 [L37] CALL __VERIFIER_assert(!(x % 2)) [L16] COND TRUE !(cond) [L17] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=11occurred 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, 6 NumberOfCodeBlocks, 6 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:10:44,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b139d645-2cdb-41a0-a66a-832b2f9250ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE