./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-lit/hh2012-ex2b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/hh2012-ex2b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33d07b945bedf27c99ae2e0c2f8250a85a01f89cb7fb82b15572e4678e4d0d97 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:25:47,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:25:48,067 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:25:48,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:25:48,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:25:48,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:25:48,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:25:48,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:25:48,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:25:48,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:25:48,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:25:48,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:25:48,101 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:25:48,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:25:48,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:25:48,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:25:48,103 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:25:48,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:25:48,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:25:48,105 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:25:48,105 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:25:48,110 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:25:48,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:25:48,111 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:25:48,111 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:25:48,112 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:25:48,112 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:25:48,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:25:48,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:25:48,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:25:48,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:25:48,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:25:48,115 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:25:48,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:25:48,116 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:25:48,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33d07b945bedf27c99ae2e0c2f8250a85a01f89cb7fb82b15572e4678e4d0d97 [2023-11-23 20:25:48,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:25:48,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:25:48,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:25:48,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:25:48,477 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:25:48,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/loop-lit/hh2012-ex2b.i [2023-11-23 20:25:51,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:25:51,678 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:25:51,679 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/sv-benchmarks/c/loop-lit/hh2012-ex2b.i [2023-11-23 20:25:51,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/data/51efb4772/dfcfc546bd9f48aaa8bc9007adff3f71/FLAG8cd92da62 [2023-11-23 20:25:51,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/data/51efb4772/dfcfc546bd9f48aaa8bc9007adff3f71 [2023-11-23 20:25:51,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:25:51,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:25:51,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:25:51,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:25:51,714 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:25:51,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:51,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4309f697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51, skipping insertion in model container [2023-11-23 20:25:51,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:51,739 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:25:51,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:25:51,942 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:25:51,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:25:51,981 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:25:51,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51 WrapperNode [2023-11-23 20:25:51,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:25:51,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:25:51,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:25:51,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:25:51,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:51,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,018 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2023-11-23 20:25:52,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:25:52,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:25:52,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:25:52,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:25:52,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:25:52,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:25:52,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:25:52,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:25:52,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:51" (1/1) ... [2023-11-23 20:25:52,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:25:52,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:25:52,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:25:52,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:25:52,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:25:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:25:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:25:52,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:25:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 20:25:52,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 20:25:52,221 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:25:52,223 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:25:52,438 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:25:52,491 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:25:52,491 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:25:52,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:25:52 BoogieIcfgContainer [2023-11-23 20:25:52,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:25:52,494 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:25:52,494 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:25:52,505 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:25:52,505 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:25:52" (1/1) ... [2023-11-23 20:25:52,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:25:52,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:25:52,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2023-11-23 20:25:52,575 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-11-23 20:25:52,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:25:52,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:25:52,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:25:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:25:52,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:25:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:25:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2023-11-23 20:25:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-11-23 20:25:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:25:53,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:25:53,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:25:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:25:53,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:25:53,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:25:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-23 20:25:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-23 20:25:53,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 20:25:53,231 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:25:53,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:25:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:25:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:25:53,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:25:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2023-11-23 20:25:53,626 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2023-11-23 20:25:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:25:53,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:25:53,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:25:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:25:53,736 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 20:25:53,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:25:53,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2023-11-23 20:25:53,832 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2023-11-23 20:25:53,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:25:53,834 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:25:53,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:25:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:25:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:25:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:25:54,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 19 states and 24 transitions. [2023-11-23 20:25:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-23 20:25:54,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:25:54,087 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-23 20:25:54,096 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-23 20:25:54,143 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:25:54,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:25:54 ImpRootNode [2023-11-23 20:25:54,148 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:25:54,148 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:25:54,149 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:25:54,149 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:25:54,149 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:25:52" (3/4) ... [2023-11-23 20:25:54,151 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:25:54,155 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 20:25:54,162 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-23 20:25:54,162 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-23 20:25:54,162 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:25:54,162 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:25:54,257 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:25:54,258 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:25:54,258 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:25:54,259 INFO L158 Benchmark]: Toolchain (without parser) took 2551.95ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 93.1MB in the end (delta: 29.4MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-23 20:25:54,259 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 127.9MB. Free memory was 92.4MB in the beginning and 92.4MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:25:54,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.24ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 112.1MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:25:54,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.69ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 110.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:25:54,261 INFO L158 Benchmark]: Boogie Preprocessor took 36.68ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 110.0MB in the end (delta: 692.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:25:54,261 INFO L158 Benchmark]: RCFGBuilder took 435.38ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 98.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:25:54,262 INFO L158 Benchmark]: CodeCheck took 1653.77ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 98.4MB in the end (delta: -267.1kB). Peak memory consumption was 427.7kB. Max. memory is 16.1GB. [2023-11-23 20:25:54,262 INFO L158 Benchmark]: Witness Printer took 109.70ms. Allocated memory is still 167.8MB. Free memory was 98.4MB in the beginning and 93.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:25:54,265 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 66 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 612 GetRequests, 576 SyntacticMatches, 14 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 23/42 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 - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 127.9MB. Free memory was 92.4MB in the beginning and 92.4MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.24ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 112.1MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.69ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 110.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.68ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 110.0MB in the end (delta: 692.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 435.38ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 98.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 1653.77ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 98.4MB in the end (delta: -267.1kB). Peak memory consumption was 427.7kB. Max. memory is 16.1GB. * Witness Printer took 109.70ms. Allocated memory is still 167.8MB. Free memory was 98.4MB in the beginning and 93.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:25:54,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a962d8aa-4296-4de9-82da-46474eb8276f/bin/ukojak-verify-1t5iHCbJaC/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