./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/simple_1-1_abstracted.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/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_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/simple_1-1_abstracted.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/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_fa31a651-bb29-4328-840a-16c7457939da/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 87474cec71c0146c8deced67d68861d5f25c58045bbea0d7c49a7bc27df227ea --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:05:47,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:05:47,475 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:05:47,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:05:47,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:05:47,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:05:47,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:05:47,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:05:47,540 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:05:47,540 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:05:47,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:05:47,542 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:05:47,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:05:47,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:05:47,544 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:05:47,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:05:47,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:05:47,545 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:05:47,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:05:47,546 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:05:47,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:05:47,548 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:05:47,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:05:47,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:05:47,550 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:05:47,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:05:47,551 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:05:47,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:05:47,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:05:47,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:05:47,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:05:47,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:47,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:05:47,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:05:47,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:05:47,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:05:47,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:05:47,579 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:05:47,579 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:05:47,579 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:05:47,579 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:05:47,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:05:47,580 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_fa31a651-bb29-4328-840a-16c7457939da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87474cec71c0146c8deced67d68861d5f25c58045bbea0d7c49a7bc27df227ea [2023-11-21 22:05:47,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:05:47,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:05:47,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:05:47,988 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:05:47,989 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:05:47,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/loop-acceleration/simple_1-1_abstracted.c [2023-11-21 22:05:51,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:05:51,407 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:05:51,407 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/sv-benchmarks/c/loop-acceleration/simple_1-1_abstracted.c [2023-11-21 22:05:51,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/data/73343d6ad/a5c14ca1de394d7c9900cef24203900b/FLAG10a63333f [2023-11-21 22:05:51,444 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/data/73343d6ad/a5c14ca1de394d7c9900cef24203900b [2023-11-21 22:05:51,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:05:51,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:05:51,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:51,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:05:51,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:05:51,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b0291b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51, skipping insertion in model container [2023-11-21 22:05:51,461 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,484 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:51,638 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_fa31a651-bb29-4328-840a-16c7457939da/sv-benchmarks/c/loop-acceleration/simple_1-1_abstracted.c[740,753] [2023-11-21 22:05:51,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:51,664 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:05:51,676 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_fa31a651-bb29-4328-840a-16c7457939da/sv-benchmarks/c/loop-acceleration/simple_1-1_abstracted.c[740,753] [2023-11-21 22:05:51,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:51,699 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:05:51,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51 WrapperNode [2023-11-21 22:05:51,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:51,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:51,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:05:51,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:05:51,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,740 INFO L138 Inliner]: procedures = 20, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-11-21 22:05:51,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:51,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:05:51,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:05:51,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:05:51,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,756 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,766 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:05:51,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,772 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:05:51,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:05:51,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:05:51,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:05:51,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (1/1) ... [2023-11-21 22:05:51,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:51,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:05:51,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:05:51,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:05:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:05:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:05:51,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:05:51,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:05:51,933 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:05:51,935 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:05:52,168 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:05:52,223 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:05:52,223 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:05:52,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:52 BoogieIcfgContainer [2023-11-21 22:05:52,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:05:52,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:05:52,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:05:52,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:05:52,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:05:51" (1/3) ... [2023-11-21 22:05:52,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ad8b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:52, skipping insertion in model container [2023-11-21 22:05:52,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:51" (2/3) ... [2023-11-21 22:05:52,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ad8b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:52, skipping insertion in model container [2023-11-21 22:05:52,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:52" (3/3) ... [2023-11-21 22:05:52,234 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_1-1_abstracted.c [2023-11-21 22:05:52,250 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:05:52,250 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:05:52,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:05:52,309 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;@32ff6c93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:05:52,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:05:52,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-21 22:05:52,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:05:52,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:52,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:05:52,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:05:52,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:52,328 INFO L85 PathProgramCache]: Analyzing trace with hash 58046, now seen corresponding path program 1 times [2023-11-21 22:05:52,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:52,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253686438] [2023-11-21 22:05:52,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:52,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:05:52,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:05:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:05:52,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:05:52,463 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:05:52,464 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:05:52,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:05:52,472 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:05:52,478 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:05:52,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:05:52 BoogieIcfgContainer [2023-11-21 22:05:52,497 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:05:52,498 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:05:52,498 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:05:52,499 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:05:52,499 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:52" (3/4) ... [2023-11-21 22:05:52,500 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 22:05:52,540 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:05:52,541 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:05:52,542 INFO L158 Benchmark]: Toolchain (without parser) took 1091.56ms. Allocated memory is still 195.0MB. Free memory was 165.1MB in the beginning and 143.0MB in the end (delta: 22.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-11-21 22:05:52,543 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:05:52,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.86ms. Allocated memory is still 195.0MB. Free memory was 165.1MB in the beginning and 154.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:05:52,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.51ms. Allocated memory is still 195.0MB. Free memory was 154.7MB in the beginning and 152.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:05:52,545 INFO L158 Benchmark]: Boogie Preprocessor took 34.83ms. Allocated memory is still 195.0MB. Free memory was 152.7MB in the beginning and 151.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:05:52,546 INFO L158 Benchmark]: RCFGBuilder took 448.70ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 158.6MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:05:52,547 INFO L158 Benchmark]: TraceAbstraction took 269.66ms. Allocated memory is still 195.0MB. Free memory was 157.7MB in the beginning and 145.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:05:52,547 INFO L158 Benchmark]: Witness Printer took 42.76ms. Allocated memory is still 195.0MB. Free memory was 145.0MB in the beginning and 143.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:05:52,551 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.86ms. Allocated memory is still 195.0MB. Free memory was 165.1MB in the beginning and 154.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.51ms. Allocated memory is still 195.0MB. Free memory was 154.7MB in the beginning and 152.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.83ms. Allocated memory is still 195.0MB. Free memory was 152.7MB in the beginning and 151.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.70ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 158.6MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 269.66ms. Allocated memory is still 195.0MB. Free memory was 157.7MB in the beginning and 145.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 42.76ms. Allocated memory is still 195.0MB. Free memory was 145.0MB in the beginning and 143.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. 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 = 0; [L26] COND TRUE x < (268435455) [L27] long long int x__VERIFIER_LA_tmp0; [L28] EXPR x__VERIFIER_LA_tmp0 = x [L29] long long int __VERIFIER_LA_iterations0; [L30] EXPR __VERIFIER_LA_iterations0 = (268435455 - x__VERIFIER_LA_tmp0) / 2L [L31] unsigned int x__VERIFIER_LA_old_tmp0; [L32] EXPR x__VERIFIER_LA_old_tmp0 = x [L33] EXPR x = (__VERIFIER_LA_iterations0 * 2L) + x__VERIFIER_LA_old_tmp0 [L26-L34] { long long int x__VERIFIER_LA_tmp0; x__VERIFIER_LA_tmp0 = x; long long int __VERIFIER_LA_iterations0; __VERIFIER_LA_iterations0 = (268435455 - x__VERIFIER_LA_tmp0) / 2L; unsigned int x__VERIFIER_LA_old_tmp0; x__VERIFIER_LA_old_tmp0 = x; x = (__VERIFIER_LA_iterations0 * 2L) + x__VERIFIER_LA_old_tmp0; } [L37] CALL __VERIFIER_assert(x % 2) [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L17] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=6occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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 proved your program to be incorrect! [2023-11-21 22:05:52,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa31a651-bb29-4328-840a-16c7457939da/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE