./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/trex02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/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_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/trex02-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/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_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/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 813a8ddd546bc7f5130f32994d5f684af23ea3f2882f066aeb97d0e96f57ab55 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:12:34,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:12:34,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:12:34,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:12:34,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:12:34,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:12:34,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:12:34,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:12:34,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:12:34,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:12:34,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:12:34,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:12:34,858 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:12:34,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:12:34,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:12:34,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:12:34,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:12:34,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:12:34,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:12:34,863 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:12:34,864 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:12:34,864 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:12:34,865 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:12:34,865 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:12:34,866 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:12:34,867 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:12:34,867 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:12:34,868 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:12:34,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:12:34,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:12:34,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:12:34,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:12:34,871 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:12:34,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:12:34,871 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:12:34,871 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_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 813a8ddd546bc7f5130f32994d5f684af23ea3f2882f066aeb97d0e96f57ab55 [2023-11-23 20:12:35,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:12:35,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:12:35,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:12:35,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:12:35,258 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:12:35,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/loops/trex02-2.c [2023-11-23 20:12:38,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:12:38,758 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:12:38,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/sv-benchmarks/c/loops/trex02-2.c [2023-11-23 20:12:38,766 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/data/85154a616/d9be8735f39d4921b48fde3620225214/FLAG83e8d7a47 [2023-11-23 20:12:38,782 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/data/85154a616/d9be8735f39d4921b48fde3620225214 [2023-11-23 20:12:38,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:12:38,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:12:38,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:12:38,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:12:38,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:12:38,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:12:38" (1/1) ... [2023-11-23 20:12:38,798 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310477d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:38, skipping insertion in model container [2023-11-23 20:12:38,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:12:38" (1/1) ... [2023-11-23 20:12:38,824 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:12:38,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:12:38,990 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:12:39,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:12:39,019 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:12:39,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39 WrapperNode [2023-11-23 20:12:39,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:12:39,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:12:39,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:12:39,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:12:39,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,062 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 33 [2023-11-23 20:12:39,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:12:39,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:12:39,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:12:39,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:12:39,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:12:39,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:12:39,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:12:39,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:12:39,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:12:39,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:12:39,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:12:39,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:12:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:12:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-11-23 20:12:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-11-23 20:12:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:12:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:12:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:12:39,243 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:12:39,245 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:12:39,360 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:12:39,406 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:12:39,406 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:12:39,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:12:39 BoogieIcfgContainer [2023-11-23 20:12:39,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:12:39,409 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:12:39,410 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:12:39,422 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:12:39,422 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:12:39" (1/1) ... [2023-11-23 20:12:39,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:12:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:12:39,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-23 20:12:39,494 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-23 20:12:39,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:12:39,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:12:39,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:12:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:12:39,764 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 20:12:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:12:39,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 18 transitions. [2023-11-23 20:12:39,850 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-11-23 20:12:39,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:12:39,853 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:12:39,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:12:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:12:39,968 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 20:12:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:12:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 14 transitions. [2023-11-23 20:12:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-23 20:12:39,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:12:39,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:12:39,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:12:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:12:40,094 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 20:12:40,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:12:40,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 24 transitions. [2023-11-23 20:12:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-23 20:12:40,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:12:40,240 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:12:40,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:12:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:12:40,308 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 20:12:40,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:12:40,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 25 transitions. [2023-11-23 20:12:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2023-11-23 20:12:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:12:40,345 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:12:40,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:12:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:12:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:12:41,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:12:41,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 11 states and 13 transitions. [2023-11-23 20:12:41,227 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-11-23 20:12:41,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:12:41,228 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-23 20:12:41,239 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-23 20:12:41,313 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:12:41,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:12:41 ImpRootNode [2023-11-23 20:12:41,317 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:12:41,318 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:12:41,318 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:12:41,319 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:12:41,319 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:12:39" (3/4) ... [2023-11-23 20:12:41,322 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:12:41,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2023-11-23 20:12:41,331 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-23 20:12:41,331 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-23 20:12:41,332 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:12:41,332 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:12:41,426 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:12:41,427 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:12:41,427 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:12:41,428 INFO L158 Benchmark]: Toolchain (without parser) took 2640.98ms. Allocated memory is still 163.6MB. Free memory was 125.7MB in the beginning and 96.4MB in the end (delta: 29.2MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-11-23 20:12:41,428 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory was 93.6MB in the beginning and 93.5MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:12:41,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.77ms. Allocated memory is still 163.6MB. Free memory was 125.2MB in the beginning and 115.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:12:41,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.77ms. Allocated memory is still 163.6MB. Free memory was 115.5MB in the beginning and 114.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:12:41,430 INFO L158 Benchmark]: Boogie Preprocessor took 30.74ms. Allocated memory is still 163.6MB. Free memory was 114.1MB in the beginning and 112.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:12:41,430 INFO L158 Benchmark]: RCFGBuilder took 314.20ms. Allocated memory is still 163.6MB. Free memory was 112.7MB in the beginning and 101.4MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:12:41,431 INFO L158 Benchmark]: CodeCheck took 1908.14ms. Allocated memory is still 163.6MB. Free memory was 101.4MB in the beginning and 100.6MB in the end (delta: 780.2kB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2023-11-23 20:12:41,431 INFO L158 Benchmark]: Witness Printer took 108.90ms. Allocated memory is still 163.6MB. Free memory was 100.6MB in the beginning and 96.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:12:41,434 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, 13 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 68 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 320 SyntacticMatches, 17 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 3/6 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 23]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory was 93.6MB in the beginning and 93.5MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.77ms. Allocated memory is still 163.6MB. Free memory was 125.2MB in the beginning and 115.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.77ms. Allocated memory is still 163.6MB. Free memory was 115.5MB in the beginning and 114.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.74ms. Allocated memory is still 163.6MB. Free memory was 114.1MB in the beginning and 112.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.20ms. Allocated memory is still 163.6MB. Free memory was 112.7MB in the beginning and 101.4MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 1908.14ms. Allocated memory is still 163.6MB. Free memory was 101.4MB in the beginning and 100.6MB in the end (delta: 780.2kB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Witness Printer took 108.90ms. Allocated memory is still 163.6MB. Free memory was 100.6MB in the beginning and 96.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:12:41,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c99c7a1-993a-4610-ac5a-1e64dbf99fbf/bin/ukojak-verify-1t5iHCbJaC/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