./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn2f.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_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn2f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3 --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9492838383a14835fe4416045232ed048098976ee70d4c4f9afc54e7ded61319 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:57:24,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:57:24,579 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 04:57:24,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:57:24,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:57:24,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:57:24,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:57:24,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:57:24,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:57:24,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:57:24,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:57:24,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:57:24,616 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:57:24,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:57:24,618 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:57:24,618 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:57:24,618 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:57:24,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:57:24,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:57:24,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:57:24,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:57:24,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:57:24,619 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:57:24,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:57:24,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3 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 -> Kojak 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 -> 9492838383a14835fe4416045232ed048098976ee70d4c4f9afc54e7ded61319 [2024-11-25 04:57:24,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:57:24,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:57:24,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:57:24,959 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:57:24,959 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:57:24,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/array-fpi/eqn2f.c [2024-11-25 04:57:27,988 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/data/ce6b00c12/5bf7c4946c87445a813fa7eecd1afc61/FLAG18dd4570a [2024-11-25 04:57:28,227 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:57:28,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/sv-benchmarks/c/array-fpi/eqn2f.c [2024-11-25 04:57:28,235 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/data/ce6b00c12/5bf7c4946c87445a813fa7eecd1afc61/FLAG18dd4570a [2024-11-25 04:57:28,250 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/data/ce6b00c12/5bf7c4946c87445a813fa7eecd1afc61 [2024-11-25 04:57:28,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:57:28,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:57:28,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:57:28,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:57:28,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:57:28,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc65eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28, skipping insertion in model container [2024-11-25 04:57:28,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,278 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:57:28,447 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_059dfb80-0374-4608-878e-22a0904d5120/sv-benchmarks/c/array-fpi/eqn2f.c[588,601] [2024-11-25 04:57:28,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:57:28,483 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:57:28,496 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_059dfb80-0374-4608-878e-22a0904d5120/sv-benchmarks/c/array-fpi/eqn2f.c[588,601] [2024-11-25 04:57:28,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:57:28,522 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:57:28,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28 WrapperNode [2024-11-25 04:57:28,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:57:28,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:57:28,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:57:28,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:57:28,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,554 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2024-11-25 04:57:28,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:57:28,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:57:28,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:57:28,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:57:28,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,571 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:57:28,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:57:28,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:57:28,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:57:28,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:28" (1/1) ... [2024-11-25 04:57:28,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:57:28,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:57:28,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:57:28,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:57:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:57:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:57:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 04:57:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-25 04:57:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:57:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:57:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 04:57:28,737 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:57:28,740 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:57:28,931 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-25 04:57:28,931 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:57:29,016 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:57:29,017 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-25 04:57:29,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:29 BoogieIcfgContainer [2024-11-25 04:57:29,017 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:57:29,018 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:57:29,018 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:57:29,029 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:57:29,029 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:29" (1/1) ... [2024-11-25 04:57:29,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:57:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:29,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2024-11-25 04:57:29,104 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2024-11-25 04:57:29,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 04:57:29,107 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:29,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 04:57:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:29,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-25 04:57:29,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:57:29,512 INFO L349 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2024-11-25 04:57:29,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2024-11-25 04:57:29,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-25 04:57:29,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-25 04:57:29,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 14 [2024-11-25 04:57:29,712 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-25 04:57:29,713 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2024-11-25 04:57:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:57:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:29,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 15 states and 27 transitions. [2024-11-25 04:57:29,984 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 27 transitions. [2024-11-25 04:57:29,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:57:29,985 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:29,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:30,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:57:30,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 17 states and 36 transitions. [2024-11-25 04:57:30,510 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 36 transitions. [2024-11-25 04:57:30,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:57:30,512 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:30,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:57:30,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:30,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 44 transitions. [2024-11-25 04:57:30,994 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 44 transitions. [2024-11-25 04:57:30,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 04:57:30,995 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:30,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 04:57:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:31,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-25 04:57:31,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:57:31,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-25 04:57:31,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 04:57:31,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2024-11-25 04:57:31,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-25 04:57:31,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-25 04:57:31,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2024-11-25 04:57:31,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 04:57:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:32,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 18 states and 36 transitions. [2024-11-25 04:57:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 36 transitions. [2024-11-25 04:57:32,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 04:57:32,191 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:32,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:32,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:57:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:33,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 22 states and 45 transitions. [2024-11-25 04:57:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 45 transitions. [2024-11-25 04:57:33,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 04:57:33,026 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:33,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:57:34,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:34,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 25 states and 54 transitions. [2024-11-25 04:57:34,033 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 54 transitions. [2024-11-25 04:57:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-25 04:57:34,034 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:34,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 04:57:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:34,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-25 04:57:34,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:57:34,169 INFO L349 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2024-11-25 04:57:34,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2024-11-25 04:57:34,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-25 04:57:34,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-25 04:57:34,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 14 [2024-11-25 04:57:34,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-25 04:57:34,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-25 04:57:34,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-25 04:57:34,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2024-11-25 04:57:34,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 04:57:34,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 04:57:34,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 04:57:34,461 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2024-11-25 04:57:34,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 64 [2024-11-25 04:57:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-25 04:57:35,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:35,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 23 states and 40 transitions. [2024-11-25 04:57:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 40 transitions. [2024-11-25 04:57:35,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 04:57:35,626 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:35,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 04:57:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:57:35,704 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:57:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:57:35,750 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2024-11-25 04:57:35,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:57:35 ImpRootNode [2024-11-25 04:57:35,793 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:57:35,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:57:35,794 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:57:35,794 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:57:35,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:29" (3/4) ... [2024-11-25 04:57:35,795 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 04:57:35,852 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 16. [2024-11-25 04:57:35,923 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 04:57:35,924 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dfb80-0374-4608-878e-22a0904d5120/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 04:57:35,924 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:57:35,925 INFO L158 Benchmark]: Toolchain (without parser) took 7670.31ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 45.5MB in the end (delta: 47.0MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-11-25 04:57:35,925 INFO L158 Benchmark]: CDTParser took 1.93ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:57:35,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.44ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.0MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:57:35,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.03ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:57:35,926 INFO L158 Benchmark]: Boogie Preprocessor took 23.19ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.8MB in the end (delta: 854.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:57:35,926 INFO L158 Benchmark]: RCFGBuilder took 438.20ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 65.0MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:57:35,926 INFO L158 Benchmark]: CodeCheck took 6774.96ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 50.5MB in the end (delta: 14.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-25 04:57:35,929 INFO L158 Benchmark]: Witness Printer took 130.34ms. Allocated memory is still 117.4MB. Free memory was 50.5MB in the beginning and 45.5MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:57:35,931 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 259 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 749 IncrementalHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 259 mSolverCounterUnsat, 14 mSDtfsCounter, 749 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 735 GetRequests, 631 SyntacticMatches, 12 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3934 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 56 ConstructedInterpolants, 4 QuantifiedInterpolants, 467 SizeOfPredicates, 17 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 8/16 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] a[0] = 8 [L32] b[0] = 1 [L34] i=1 VAL [N=2, a={-1:0}, b={4:0}, i=1] [L34] COND TRUE i