./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/diamond_2-2.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_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b --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 5b285e679a61ee5ec3c0d899a4a7682d4249c0885f5b4a5875891b312f202de4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:54:13,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:54:13,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 02:54:13,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:54:13,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:54:13,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:54:13,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:54:13,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:54:13,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:54:13,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:54:13,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:54:13,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:54:13,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 02:54:13,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:54:13,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 02:54:13,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:54:13,088 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:54:13,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:54:13,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:54:13,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:54:13,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:54:13,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:54:13,089 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:54:13,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:54:13,089 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_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b 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 -> 5b285e679a61ee5ec3c0d899a4a7682d4249c0885f5b4a5875891b312f202de4 [2024-12-06 02:54:13,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:54:13,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:54:13,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:54:13,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:54:13,330 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:54:13,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c [2024-12-06 02:54:16,089 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/data/e43a3778c/021f4dc52dbb46118675f7c700175e40/FLAG1a5573462 [2024-12-06 02:54:16,268 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:54:16,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/sv-benchmarks/c/loop-acceleration/diamond_2-2.c [2024-12-06 02:54:16,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/data/e43a3778c/021f4dc52dbb46118675f7c700175e40/FLAG1a5573462 [2024-12-06 02:54:16,297 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/data/e43a3778c/021f4dc52dbb46118675f7c700175e40 [2024-12-06 02:54:16,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:54:16,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:54:16,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:54:16,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:54:16,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:54:16,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284aab7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16, skipping insertion in model container [2024-12-06 02:54:16,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:54:16,451 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_2a33559c-a62f-420f-bc15-d5fc1bd17710/sv-benchmarks/c/loop-acceleration/diamond_2-2.c[373,386] [2024-12-06 02:54:16,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:54:16,480 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:54:16,489 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_2a33559c-a62f-420f-bc15-d5fc1bd17710/sv-benchmarks/c/loop-acceleration/diamond_2-2.c[373,386] [2024-12-06 02:54:16,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:54:16,510 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:54:16,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16 WrapperNode [2024-12-06 02:54:16,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:54:16,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:54:16,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:54:16,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:54:16,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,523 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,538 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-12-06 02:54:16,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:54:16,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:54:16,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:54:16,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:54:16,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,549 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:54:16,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:54:16,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:54:16,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:54:16,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:54:16,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:54:16,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:54:16,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:54:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:54:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:54:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:54:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:54:16,672 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:54:16,674 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:54:16,809 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-06 02:54:16,809 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:54:16,905 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:54:16,905 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 02:54:16,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:54:16 BoogieIcfgContainer [2024-12-06 02:54:16,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:54:16,906 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:54:16,906 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:54:16,914 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:54:16,914 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:54:16" (1/1) ... [2024-12-06 02:54:16,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:54:16,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:16,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 02:54:16,958 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 02:54:16,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 02:54:16,959 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:16,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:17,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:17,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:17,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-06 02:54:17,164 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-06 02:54:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 02:54:17,164 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:17,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:17,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:17,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2024-12-06 02:54:17,784 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2024-12-06 02:54:17,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 02:54:17,785 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:17,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:18,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:18,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 12 states and 20 transitions. [2024-12-06 02:54:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 20 transitions. [2024-12-06 02:54:18,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 02:54:18,791 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:18,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:19,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 14 states and 24 transitions. [2024-12-06 02:54:19,806 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 24 transitions. [2024-12-06 02:54:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 02:54:19,807 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:19,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:20,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:20,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 16 states and 28 transitions. [2024-12-06 02:54:20,916 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 28 transitions. [2024-12-06 02:54:20,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 02:54:20,916 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:20,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:21,892 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:22,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2024-12-06 02:54:22,263 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-12-06 02:54:22,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 02:54:22,263 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-12-06 02:54:22,270 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 02:54:22,403 INFO L77 FloydHoareUtils]: At program point L7(lines 7 9) the Hoare annotation is: (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) [2024-12-06 02:54:22,404 INFO L77 FloydHoareUtils]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2024-12-06 02:54:22,404 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2024-12-06 02:54:22,404 INFO L77 FloydHoareUtils]: At program point L45-1(lines 17 47) the Hoare annotation is: (let ((.cse2 (mod |ULTIMATE.start_main_~y~0#1| 2))) (let ((.cse0 (= .cse2 0)) (.cse1 (mod |ULTIMATE.start_main_~x~0#1| 2))) (or (and (or (and (<= 0 (+ 5 |ULTIMATE.start_main_~x~0#1|)) (<= (+ (div |ULTIMATE.start_main_~x~0#1| 4294967296) 1) 0) (not .cse0)) (= |ULTIMATE.start_main_~x~0#1| 20)) (<= (* 2 |ULTIMATE.start_main_~y~0#1|) (+ .cse1 (* 4 (div |ULTIMATE.start_main_~y~0#1| 2)) 1))) (and (= |ULTIMATE.start_main_~x~0#1| 60) .cse0) (and .cse0 (= 40 |ULTIMATE.start_main_~x~0#1|)) (and .cse0 (= |ULTIMATE.start_main_~x~0#1| 80)) (= |ULTIMATE.start_main_~x~0#1| 0) (and (<= 50 (div |ULTIMATE.start_main_~x~0#1| 2)) (< .cse2 1) (= .cse1 .cse2))))) [2024-12-06 02:54:22,404 INFO L75 FloydHoareUtils]: For program point L8(line 8) no Hoare annotation was computed. [2024-12-06 02:54:22,404 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 02:54:22,404 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 02:54:22,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:54:22 ImpRootNode [2024-12-06 02:54:22,417 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:54:22,418 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:54:22,418 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:54:22,418 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:54:22,419 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:54:16" (3/4) ... [2024-12-06 02:54:22,421 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 02:54:22,427 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-12-06 02:54:22,427 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-06 02:54:22,428 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 02:54:22,428 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 02:54:22,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 02:54:22,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 02:54:22,489 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:54:22,490 INFO L158 Benchmark]: Toolchain (without parser) took 6189.19ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 119.2MB in the beginning and 262.2MB in the end (delta: -143.0MB). Peak memory consumption was 122.8MB. Max. memory is 16.1GB. [2024-12-06 02:54:22,490 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:54:22,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.91ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 107.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:54:22,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.38ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 106.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:54:22,491 INFO L158 Benchmark]: Boogie Preprocessor took 17.31ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.8MB in the end (delta: 746.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:54:22,491 INFO L158 Benchmark]: RCFGBuilder took 348.96ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 87.2MB in the end (delta: 18.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-06 02:54:22,492 INFO L158 Benchmark]: CodeCheck took 5511.46ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 87.0MB in the beginning and 266.5MB in the end (delta: -179.5MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. [2024-12-06 02:54:22,492 INFO L158 Benchmark]: Witness Printer took 71.26ms. Allocated memory is still 411.0MB. Free memory was 266.5MB in the beginning and 262.2MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:54:22,494 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 260 IncrementalHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 18 mSDtfsCounter, 260 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 332 GetRequests, 276 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 845 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 0/35 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: 8]: 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: ((((((((((0 <= ((long long) 5 + x)) && (1 <= 0)) && ((y % 2) != 0)) || (x == 20)) && (((long long) 2 * y) <= (((x % 2) + ((long long) 4 * (y / 2))) + 1))) || ((x == 60) && ((y % 2) == 0))) || (((y % 2) == 0) && (40 == x))) || (((y % 2) == 0) && (x == 80))) || (x == 0)) || (((50 <= (x / 2)) && ((y % 2) < 1)) && ((x % 2) == (y % 2)))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.91ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 107.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.38ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 106.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.31ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.8MB in the end (delta: 746.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 348.96ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 87.2MB in the end (delta: 18.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 5511.46ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 87.0MB in the beginning and 266.5MB in the end (delta: -179.5MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. * Witness Printer took 71.26ms. Allocated memory is still 411.0MB. Free memory was 266.5MB in the beginning and 262.2MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 02:54:22,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a33559c-a62f-420f-bc15-d5fc1bd17710/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE