./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/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_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/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 64bit --witnessprinter.graph.data.programhash 6fd8c0f78f1a02f0110655a19aab6ed326f45dcdd8f1755f6a67e81d29b9a49c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:25:25,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:25:26,086 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-24 18:25:26,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:25:26,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:25:26,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:25:26,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:25:26,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:25:26,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:25:26,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:25:26,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:25:26,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:25:26,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:25:26,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:25:26,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:25:26,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:25:26,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:25:26,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:25:26,132 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:25:26,132 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:25:26,132 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:25:26,132 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:25:26,132 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:25:26,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:25:26,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:25:26,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:25:26,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:25:26,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:25:26,133 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:25:26,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:25:26,133 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_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd8c0f78f1a02f0110655a19aab6ed326f45dcdd8f1755f6a67e81d29b9a49c [2024-11-24 18:25:26,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:25:26,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:25:26,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:25:26,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:25:26,496 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:25:26,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2024-11-24 18:25:29,637 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/data/7a3706539/604eb3f1688c42efbda19a75e432441d/FLAG009fc17b6 [2024-11-24 18:25:29,971 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:25:29,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2024-11-24 18:25:29,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/data/7a3706539/604eb3f1688c42efbda19a75e432441d/FLAG009fc17b6 [2024-11-24 18:25:30,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/data/7a3706539/604eb3f1688c42efbda19a75e432441d [2024-11-24 18:25:30,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:25:30,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:25:30,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:25:30,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:25:30,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:25:30,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc3d9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30, skipping insertion in model container [2024-11-24 18:25:30,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:25:30,204 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_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1245,1258] [2024-11-24 18:25:30,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:25:30,347 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:25:30,358 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_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1245,1258] [2024-11-24 18:25:30,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:25:30,473 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:25:30,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30 WrapperNode [2024-11-24 18:25:30,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:25:30,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:25:30,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:25:30,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:25:30,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,602 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 777 [2024-11-24 18:25:30,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:25:30,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:25:30,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:25:30,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:25:30,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,687 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:25:30,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:25:30,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:25:30,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:25:30,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:25:30" (1/1) ... [2024-11-24 18:25:30,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:25:30,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:25:30,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:25:30,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:25:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:25:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:25:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:25:30,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:25:31,059 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:25:31,061 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:25:32,505 INFO L? ?]: Removed 340 outVars from TransFormulas that were not future-live. [2024-11-24 18:25:32,505 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:25:33,582 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:25:33,582 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 18:25:33,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:25:33 BoogieIcfgContainer [2024-11-24 18:25:33,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:25:33,583 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:25:33,584 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:25:33,595 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:25:33,596 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:25:33" (1/1) ... [2024-11-24 18:25:33,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:25:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:25:33,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-11-24 18:25:33,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-11-24 18:25:33,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-24 18:25:33,664 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:25:33,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:25:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:25:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:25:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:25:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-11-24 18:25:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-11-24 18:25:37,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 18:25:37,325 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:25:37,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:25:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:25:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:25:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:25:44,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 12 states and 18 transitions. [2024-11-24 18:25:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 18 transitions. [2024-11-24 18:25:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-24 18:25:44,830 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:25:44,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:25:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:25:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:25:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:25:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 10 states and 18 transitions. [2024-11-24 18:25:53,314 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 18 transitions. [2024-11-24 18:25:53,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 18:25:53,315 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2024-11-24 18:25:53,328 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-24 18:25:53,519 INFO L77 FloydHoareUtils]: At program point L104-1(lines 104 391) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~var_5~0#1| 0))) (or (and .cse0 (< (mod (+ (* |ULTIMATE.start_main_~state_14~0#1| 255) 255) 256) 1)) (and (= |ULTIMATE.start_main_~state_29~0#1| 0) .cse0 (= |ULTIMATE.start_main_~state_22~0#1| 0) (= |ULTIMATE.start_main_~state_6~0#1| 0)))) [2024-11-24 18:25:53,520 INFO L77 FloydHoareUtils]: At program point L21(line 21) the Hoare annotation is: (and (= |ULTIMATE.start_main_~var_5~0#1| 0) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0))) [2024-11-24 18:25:53,520 INFO L75 FloydHoareUtils]: For program point L21-1(line 21) no Hoare annotation was computed. [2024-11-24 18:25:53,520 INFO L77 FloydHoareUtils]: At program point L21-3(line 21) the Hoare annotation is: (= |ULTIMATE.start_main_~var_5~0#1| 0) [2024-11-24 18:25:53,520 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2024-11-24 18:25:53,520 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-24 18:25:53,520 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2024-11-24 18:25:53,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:25:53 ImpRootNode [2024-11-24 18:25:53,542 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:25:53,543 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:25:53,543 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:25:53,543 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:25:53,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:25:33" (3/4) ... [2024-11-24 18:25:53,548 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 18:25:53,576 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 173 nodes and edges [2024-11-24 18:25:53,578 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-24 18:25:53,581 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-24 18:25:53,582 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 18:25:53,583 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 18:25:53,743 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-24 18:25:53,744 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-24 18:25:53,744 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:25:53,747 INFO L158 Benchmark]: Toolchain (without parser) took 23739.99ms. Allocated memory was 117.4MB in the beginning and 578.8MB in the end (delta: 461.4MB). Free memory was 92.4MB in the beginning and 243.8MB in the end (delta: -151.4MB). Peak memory consumption was 306.0MB. Max. memory is 16.1GB. [2024-11-24 18:25:53,747 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:25:53,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.39ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 70.7MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 18:25:53,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.51ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 55.2MB in the end (delta: 15.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:25:53,748 INFO L158 Benchmark]: Boogie Preprocessor took 154.46ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 49.0MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:25:53,749 INFO L158 Benchmark]: RCFGBuilder took 2820.92ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 49.0MB in the beginning and 123.3MB in the end (delta: -74.3MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-11-24 18:25:53,750 INFO L158 Benchmark]: CodeCheck took 19959.09ms. Allocated memory was 209.7MB in the beginning and 578.8MB in the end (delta: 369.1MB). Free memory was 123.3MB in the beginning and 256.2MB in the end (delta: -132.9MB). Peak memory consumption was 234.0MB. Max. memory is 16.1GB. [2024-11-24 18:25:53,751 INFO L158 Benchmark]: Witness Printer took 200.88ms. Allocated memory is still 578.8MB. Free memory was 256.2MB in the beginning and 243.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:25:53,754 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: 19.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 9.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 9.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 3 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/9 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: 21]: 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: 104]: Loop Invariant Derived loop invariant: (((var_5 == 0) && (((((unsigned short) state_14 * 255) + 255) % 256) < 1)) || ((((state_29 == 0) && (var_5 == 0)) && (state_22 == 0)) && (state_6 == 0))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.39ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 70.7MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.51ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 55.2MB in the end (delta: 15.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 154.46ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 49.0MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2820.92ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 49.0MB in the beginning and 123.3MB in the end (delta: -74.3MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * CodeCheck took 19959.09ms. Allocated memory was 209.7MB in the beginning and 578.8MB in the end (delta: 369.1MB). Free memory was 123.3MB in the beginning and 256.2MB in the end (delta: -132.9MB). Peak memory consumption was 234.0MB. Max. memory is 16.1GB. * Witness Printer took 200.88ms. Allocated memory is still 578.8MB. Free memory was 256.2MB in the beginning and 243.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-24 18:25:53,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1c7f49-a85f-4867-bde1-a07d1ae14a66/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