./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/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_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/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 64bit --witnessprinter.graph.data.programhash 956a7be0aa4123ddc345c58470e6c6f0d648bcd1784c1fbfd2df8e05f06ac7cd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:24:10,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:24:10,241 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:24:10,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:24:10,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:24:10,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:24:10,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:24:10,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:24:10,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:24:10,287 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:24:10,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:24:10,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:24:10,289 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:24:10,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:24:10,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:24:10,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:24:10,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:24:10,292 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:24:10,293 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:24:10,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:24:10,294 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:24:10,295 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:24:10,295 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:24:10,296 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:24:10,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:24:10,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:10,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:24:10,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:24:10,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:24:10,299 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:24:10,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:24:10,300 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:24:10,301 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_753c5641-e6df-4b37-ab5b-2e729b865518/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 956a7be0aa4123ddc345c58470e6c6f0d648bcd1784c1fbfd2df8e05f06ac7cd [2023-11-23 20:24:10,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:24:10,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:24:10,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:24:10,687 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:24:10,688 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:24:10,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i [2023-11-23 20:24:13,843 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:24:14,174 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:24:14,176 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i [2023-11-23 20:24:14,190 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/data/b3f567f09/c45a61cfbca04f91b2149f4e1a0000d3/FLAG0564cf62a [2023-11-23 20:24:14,209 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/data/b3f567f09/c45a61cfbca04f91b2149f4e1a0000d3 [2023-11-23 20:24:14,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:24:14,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:24:14,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:14,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:24:14,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:24:14,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:14,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd6da23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14, skipping insertion in model container [2023-11-23 20:24:14,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:14,285 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:24:14,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:14,784 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:24:14,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:14,925 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:24:14,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14 WrapperNode [2023-11-23 20:24:14,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:14,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:14,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:24:14,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:24:14,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:14,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,062 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2023-11-23 20:24:15,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:15,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:24:15,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:24:15,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:24:15,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:24:15,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:24:15,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:24:15,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:24:15,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:14" (1/1) ... [2023-11-23 20:24:15,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:15,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:24:15,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:24:15,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:24:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:24:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:24:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:24:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:24:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:24:15,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:24:15,311 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:24:15,314 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:24:15,535 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:24:15,633 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:24:15,633 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:24:15,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:15 BoogieIcfgContainer [2023-11-23 20:24:15,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:24:15,636 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:24:15,637 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:24:15,655 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:24:15,656 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:15" (1/1) ... [2023-11-23 20:24:15,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:24:15,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:15,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-23 20:24:15,741 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-23 20:24:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-23 20:24:15,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:15,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:16,086 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 20:24:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-23 20:24:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-23 20:24:16,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 20:24:16,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:16,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:16,343 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 20:24:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2023-11-23 20:24:16,413 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-23 20:24:16,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:24:16,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:16,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:16,618 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 20:24:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:16,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-23 20:24:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-23 20:24:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:24:16,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:16,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:16,884 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 20:24:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-23 20:24:17,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-23 20:24:17,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:24:17,145 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-23 20:24:17,155 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-23 20:24:17,182 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:24:17,187 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:24:17,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:24:17 ImpRootNode [2023-11-23 20:24:17,187 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:24:17,189 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:24:17,190 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:24:17,190 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:24:17,190 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:15" (3/4) ... [2023-11-23 20:24:17,195 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:24:17,209 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-23 20:24:17,209 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 20:24:17,209 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 20:24:17,210 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:24:17,320 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:24:17,320 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:24:17,320 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:24:17,321 INFO L158 Benchmark]: Toolchain (without parser) took 3107.66ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 111.6MB in the beginning and 124.4MB in the end (delta: -12.8MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-11-23 20:24:17,322 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 90.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:17,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 711.27ms. Allocated memory is still 144.7MB. Free memory was 111.6MB in the beginning and 93.6MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:24:17,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.91ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 115.1MB in the end (delta: -21.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:24:17,323 INFO L158 Benchmark]: Boogie Preprocessor took 57.91ms. Allocated memory is still 144.7MB. Free memory was 115.1MB in the beginning and 113.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:17,324 INFO L158 Benchmark]: RCFGBuilder took 512.56ms. Allocated memory is still 144.7MB. Free memory was 113.1MB in the beginning and 97.1MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:24:17,324 INFO L158 Benchmark]: CodeCheck took 1550.93ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 97.1MB in the beginning and 129.7MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:17,325 INFO L158 Benchmark]: Witness Printer took 131.17ms. Allocated memory is still 174.1MB. Free memory was 129.7MB in the beginning and 124.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:24:17,327 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, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 0 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 388]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 388]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 389]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 389]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 90.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 711.27ms. Allocated memory is still 144.7MB. Free memory was 111.6MB in the beginning and 93.6MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.91ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 115.1MB in the end (delta: -21.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.91ms. Allocated memory is still 144.7MB. Free memory was 115.1MB in the beginning and 113.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 512.56ms. Allocated memory is still 144.7MB. Free memory was 113.1MB in the beginning and 97.1MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1550.93ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 97.1MB in the beginning and 129.7MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 131.17ms. Allocated memory is still 174.1MB. Free memory was 129.7MB in the beginning and 124.4MB 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 20:24:17,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753c5641-e6df-4b37-ab5b-2e729b865518/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