./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/hh2012-ex2b.i --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_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/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_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/hh2012-ex2b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/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_037d0dbc-b865-4340-9f35-bacc231ea18f/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 33d07b945bedf27c99ae2e0c2f8250a85a01f89cb7fb82b15572e4678e4d0d97 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:42:47,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:42:47,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 02:42:47,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:42:47,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:42:47,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:42:47,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:42:47,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:42:47,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:42:47,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:42:47,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:42:47,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:42:47,658 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:42:47,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:42:47,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:42:47,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:42:47,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:42:47,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:42:47,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:42:47,659 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:42:47,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:42:47,660 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:42:47,660 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:42:47,660 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:42:47,660 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:42:47,660 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:42:47,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:42:47,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:42:47,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:42:47,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:42:47,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:42:47,661 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:42:47,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:42:47,661 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_037d0dbc-b865-4340-9f35-bacc231ea18f/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 -> 33d07b945bedf27c99ae2e0c2f8250a85a01f89cb7fb82b15572e4678e4d0d97 [2024-11-25 02:42:47,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:42:47,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:42:47,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:42:47,978 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:42:47,979 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:42:47,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/loop-lit/hh2012-ex2b.i [2024-11-25 02:42:50,837 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/data/c7b922a3f/610a8e046e534c658e58a0835c712d76/FLAGa8830593e [2024-11-25 02:42:51,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:42:51,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/sv-benchmarks/c/loop-lit/hh2012-ex2b.i [2024-11-25 02:42:51,125 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/data/c7b922a3f/610a8e046e534c658e58a0835c712d76/FLAGa8830593e [2024-11-25 02:42:51,144 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/data/c7b922a3f/610a8e046e534c658e58a0835c712d76 [2024-11-25 02:42:51,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:42:51,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:42:51,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:42:51,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:42:51,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:42:51,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70583a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51, skipping insertion in model container [2024-11-25 02:42:51,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,168 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:42:51,315 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_037d0dbc-b865-4340-9f35-bacc231ea18f/sv-benchmarks/c/loop-lit/hh2012-ex2b.i[800,813] [2024-11-25 02:42:51,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:42:51,336 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:42:51,346 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_037d0dbc-b865-4340-9f35-bacc231ea18f/sv-benchmarks/c/loop-lit/hh2012-ex2b.i[800,813] [2024-11-25 02:42:51,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:42:51,362 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:42:51,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51 WrapperNode [2024-11-25 02:42:51,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:42:51,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:42:51,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:42:51,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:42:51,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,390 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-11-25 02:42:51,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:42:51,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:42:51,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:42:51,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:42:51,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,403 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,405 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,415 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,416 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:42:51,417 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:42:51,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:42:51,418 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:42:51,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:42:51,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:42:51,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:42:51,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:42:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:42:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:42:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:42:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:42:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 02:42:51,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 02:42:51,559 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:42:51,560 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:42:51,660 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-25 02:42:51,661 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:42:51,692 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:42:51,692 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 02:42:51,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:42:51 BoogieIcfgContainer [2024-11-25 02:42:51,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:42:51,694 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:42:51,694 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:42:51,704 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:42:51,704 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:42:51" (1/1) ... [2024-11-25 02:42:51,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:42:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:51,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-11-25 02:42:51,762 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-11-25 02:42:51,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 02:42:51,763 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:51,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:52,077 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 02:42:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 20 transitions. [2024-11-25 02:42:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-11-25 02:42:52,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 02:42:52,186 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:52,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:42:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:52,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2024-11-25 02:42:52,516 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-11-25 02:42:52,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 02:42:52,517 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:52,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:52,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:42:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2024-11-25 02:42:52,750 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2024-11-25 02:42:52,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-25 02:42:52,751 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:52,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-25 02:42:53,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:53,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2024-11-25 02:42:53,070 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2024-11-25 02:42:53,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-25 02:42:53,071 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:53,318 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-25 02:42:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:53,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2024-11-25 02:42:53,392 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2024-11-25 02:42:53,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 02:42:53,393 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-25 02:42:53,403 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-25 02:42:53,505 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2024-11-25 02:42:53,506 INFO L77 FloydHoareUtils]: At program point L19(lines 19 27) the Hoare annotation is: (< |ULTIMATE.start_main_~n~0#1| 61) [2024-11-25 02:42:53,506 INFO L77 FloydHoareUtils]: At program point L19-1(lines 17 28) the Hoare annotation is: (< |ULTIMATE.start_main_~n~0#1| 61) [2024-11-25 02:42:53,506 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 02:42:53,507 INFO L77 FloydHoareUtils]: At program point L24(line 24) the Hoare annotation is: (= |ULTIMATE.start_main_~n~0#1| 60) [2024-11-25 02:42:53,507 INFO L77 FloydHoareUtils]: At program point L24-1(line 24) the Hoare annotation is: true [2024-11-25 02:42:53,507 INFO L77 FloydHoareUtils]: At program point L20(lines 20 26) the Hoare annotation is: (< |ULTIMATE.start_main_~n~0#1| 61) [2024-11-25 02:42:53,507 INFO L77 FloydHoareUtils]: At program point L18(line 18) the Hoare annotation is: (< |ULTIMATE.start_main_~n~0#1| 61) [2024-11-25 02:42:53,508 INFO L77 FloydHoareUtils]: At program point L13(line 13) the Hoare annotation is: (and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (= __VERIFIER_assert_~cond 0))) [2024-11-25 02:42:53,508 INFO L75 FloydHoareUtils]: For program point L13-1(line 13) no Hoare annotation was computed. [2024-11-25 02:42:53,508 INFO L77 FloydHoareUtils]: At program point L13-3(line 13) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-25 02:42:53,509 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(line 13) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-25 02:42:53,509 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line 13) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-25 02:42:53,509 INFO L75 FloydHoareUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2024-11-25 02:42:53,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:42:53 ImpRootNode [2024-11-25 02:42:53,528 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:42:53,528 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:42:53,528 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:42:53,529 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:42:53,529 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:42:51" (3/4) ... [2024-11-25 02:42:53,531 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 02:42:53,534 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-25 02:42:53,540 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-25 02:42:53,540 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-25 02:42:53,540 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 02:42:53,541 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 02:42:53,621 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:42:53,621 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:42:53,621 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:42:53,624 INFO L158 Benchmark]: Toolchain (without parser) took 2474.66ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 48.2MB in the end (delta: 46.3MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2024-11-25 02:42:53,625 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:42:53,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.84ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 83.7MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:42:53,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.31ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 82.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:42:53,626 INFO L158 Benchmark]: Boogie Preprocessor took 24.77ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.8MB in the end (delta: 777.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:42:53,626 INFO L158 Benchmark]: RCFGBuilder took 275.88ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 71.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:42:53,627 INFO L158 Benchmark]: CodeCheck took 1833.97ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 52.3MB in the end (delta: 19.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-11-25 02:42:53,627 INFO L158 Benchmark]: Witness Printer took 93.14ms. Allocated memory is still 117.4MB. Free memory was 52.3MB in the beginning and 48.2MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:42:53,629 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 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 55 mSDtfsCounter, 192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 579 GetRequests, 549 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 143 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 42/47 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 - PositiveResult [Line: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (n < 61) - ProcedureContractResult [Line: 13]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (cond != 0) Ensures: (cond != 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.84ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 83.7MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.31ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 82.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.77ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.8MB in the end (delta: 777.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 275.88ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 71.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1833.97ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 52.3MB in the end (delta: 19.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Witness Printer took 93.14ms. Allocated memory is still 117.4MB. Free memory was 52.3MB in the beginning and 48.2MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-25 02:42:53,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_037d0dbc-b865-4340-9f35-bacc231ea18f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE